Руководств для actros - Большая энциклопедия инструкций и руководств

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YOUR OPERATOR’S MANUALS

Vehicle document wallet in the vehicle

Here you can find information on operation, service work and the guarantee for

your vehicle in printed form.

Digital on the Internet

You can access the Operator’s Manual on the Mercedes-Benz homepage.

Digital as an app

The Mercedes-Benz Guides app is available free of charge in common app stores.

É9605843273vËÍ

9605843273

Order no. 6462 9543 02 Part no. 960 584 32 73 Edition 2019-06

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Actros/Arocs

Mercedes-Benz

Summary of Contents for Mercedes-Benz Actros

This manual is also suitable for:

Arocs

Источник

There’re some MERCEDES Benz Actros Truck Service Manuals, Parts Catalog PDF above the page.

The first MERCEDES ACTROS was released in 1996. A few years before the debut of the advanced family, the German trucks manufacturer was thinking about updating the line of
heavy vehicles.

The SK series is outdated in many ways. The indestructible truck began to lose in demand, and the manufacturer needed something fundamentally new. As a result, the
Mercedes Actros family appeared.

The developers went a revolutionary way. From a simple predecessor in the design, there was practically nothing left. The model has noticeably changed, and a lot of electronics have appeared
inside. This had a positive effect on the quality of work and the level of comfort, but reliability decreased slightly.

The car received the standard appearance and design for heavy truck models — a large rectangular cabin and a robust chassis. Mercedes did not forget about the corporate identity.

The front part of the truck cabin was decorated with a powerful radiator grill, characteristic of the brand’s products, and a large company icon.

Источник

Electronic systems, Actros, model 963

Functional description

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Mercedes>Benz Service

Electronic systems, Actros, model 963

Technical status 09.11

Daimler AG . Technical Information and Workshop Equipment(GSP/OI)

D$70546 Stuttgart

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Information and copyright

Product portfolio

You can also find comprehensive information about our complete product portfolio on our Internet portal: Link: http://aftersales.mercedes>benz.com

Questions and suggestions

If you have any questions or suggestions concerning this product, please write to us.

E>Mail:	customer.support@daimler.com
Telefax:	+49>(0)18 05/0 10>79 78

or alternatively

Address: Daimler AG GSP/OIS,

HPC R822, W002

D>70546 Stuttgart (Germany)

This document, including all its parts, is protected by copyright.

Any further processing or use requires the previous written consent of Daimler AG, Department GSP/OIS, HPC R822, W002, D>70546 Stuttgart.

This applies in particular to reproduction, distribution, alteration, translation, microfilming and storage and/or processing in electronic systems, including databases and online services.

Image no. of title image:	W00.01>1016>00
Order no. of this publication:	6517 1261 02 > HLI 000 000 02 89
09/11

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Preface

SN00.00>W>0001>01HA Preface

This brochure

Actros electronic systems, model 963

is intended for the technical personnel responsible for service and maintenance of Mercedes>Benz trucks.

The content of this brochure is split up into:

• function descriptions

• component descriptions

• Description of locations of electrical connectors, sockets and ground points

All the data listed in this brochure correspond with the technical status as per September 2011.

Any changes or supplements hereto will be published in the Workshop Information System (WIS) only.

Additional documents for model 963, such as maintenance and repair instructions or wiring diagrams are also available in the Workshop Information System (WIS).

Mercedes>Benz

W‘rth plant, GSP/TTM

September 2011

i Electronic systems, Actros, model 963 > 09/2011 >

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Contents

SN00.00>W>0110H	Overview of as>built configuration and function descriptions	2.8.11

MODEL 963

	Function descriptions


	Overall network		Page 15


	Overall network, function		Page 16


	Maintenance system, function		Page 22

	Maintenance system, overall network		Page 23

	Data acquisition function		Page 24

	Data storage function		Page 29

	Normal mode displays function		Page 30

	Reset service item function		Page 32

	Forecast calculation, function		Page 34

	Life cycle consumption calculation,		Page 35
	function


	Transmission automation, function		Page 37

	Transmission automation, overall network		Page 40

	Operation, function		Page 41

	Driver information, function		Page 44

	Transmission mode, function		Page 45

	Shifting the transmission, function		Page 46

	Controlling the clutch, function		Page 52

	Countershaft brake, function		Page 54


	Level control, function		Page 56

	Level control, overall network		Page 59

	Axle load measuring system, function		Page 60

	Monitoring/control of specified level,		Page 62
	function

	Changeover from level 1 to level 2,		Page 64
	function

	Raise/lower vehicle frame manually,		Page 66
	function

	Store frame height, function		Page 68

	Constant frame height when		Page 70
	loading/unloading, function

	Raise/lower lift axle, function		Page 73

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			Contents

	Starting>off aid, function		Page 76

	Load/relieve additional axles, function		Page 78


	Roll control, function		Page 81

	Roll control, overall network		Page 84


	Tire pressure monitor, function		Page 85

	Tire pressure monitor, overall network		Page 86

	Tire pressure monitor, driver information		Page 87


	Electronic Brake Control, function		Page 88

	Electronic Brake Control, overall network		Page 92

	Brake application on front axle with		Page 93
	Electronic Brake Control, function

	Brake application on front axle without		Page 95
	Electronic Brake Control, function

	Brake application on rear axle with		Page 97
	Electronic Brake Control, function

	Brake application on rear axle without		Page 99
	Electronic Brake Control, function

	Trailer control with Electronic Brake		Page 101
	Control, function

	Trailer control without Electronic Brake		Page 104
	Control, function

	Auxiliary braking effect, function		Page 106


	Electronic Stability Program, function		Page 108

	Electronic Stability Program, overall		Page 111
	network

	Intervention of Electronic Stability Program		Page 112
	in the event of understeer or oversteer,
	function

	Intervention of Electronic Stability Program		Page 114
	upon risk of tipping, function


	Compressed air supply system, function		Page 116

	Compressed air supply system, overall		Page 122
	network


	Hydraulic retarder, function		Page 123

	Overall network of hydraulic retarder		Page 129


	Single>circuit power steering, function		Page 130

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Contents


	Additional steering axle, function		Page 133

	Additional steering axle, overall network		Page 137

	Additional steering axle, hydraulics		Page 138
	diagram


	Driving assistance systems, function		Page 139

	Driving assistance systems, overall network		Page 144

	Proximity Control Assist function		Page 145

	Active Brake Assist function		Page 149

	Lane Keeping Assist function		Page 154


	Battery sensor function		Page 158

	Overall network battery sensor		Page 159


	Modular switch panel function		Page 160

	Overall network modular switch panel		Page 162


	Instrument cluster, function		Page 163

	Instrument cluster, overall network		Page 166

	Instrument cluster operating notes		Page 167

	Display fuel quantity, function		Page 168

	Display outside temperature, function		Page 169

	Display engine speed, function		Page 170

	Display speed and travel distance, function		Page 171

	Display AdBlue level, function		Page 173

	Redundancy operation of Electronic Air>		Page 174
	Processing Unit (EAPU), function


	Signaling system, function		Page 175

	Overall network of signaling system		Page 177


	Power windows, function		Page 178

	Power windows, overall network		Page 181


	Electric power sliding roof, function		Page 182

	Electric power sliding rood, overall		Page 184
	network


	Central locking, function		Page 185

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			Contents

	Central locking, overall network		Page 191


	Comfort locking system function		Page 192

	Comfort locking system overall network		Page 198


	Anti>theft alarm system, function		Page 199

	Anti>theft alarm system, overall network		Page 201

	Anti>theft alarm system, status messages		Page 202

	Activate antitheft alarm system, function		Page 205

	Deactivate anti>theft alarm system,		Page 210
	function

	Triggering alarm by disconnecting trailer		Page 214
	or semitrailer, function

	Alarm actuation by unlocking cab, function		Page 217

	Triggerring alarm with panic switch,		Page 220
	function

	Alarm triggering with interior protection,		Page 223
	function

	Alarm triggering by steeling fuel, function		Page 226

	Alarm triggering by unlocking/opening a		Page 229
	door/flap, function

	Alarm triggering by alarm siren, function		Page 233


	Drive authorization system, function		Page 236

	Drive authorization system overall network		Page 238


	Exterior lighting, function		Page 239

	Exterior lights, overall network		Page 241

	Headlamp control, function		Page 242

	Fog lamp actuation, function		Page 246

	Rear fog lamp actuation, function		Page 247

	Turn signal light actuation, function		Page 248

	Brake lights actuation, function		Page 250

	Backup light actuation, function		Page 252

	Emergency light actuation, function		Page 253

	Floodlight actuation, function		Page 255


	Interior illumination, function		Page 257

	Interior illumination, overall network		Page 259

	Ambient lighting actuation, function		Page 260

	Interior illumination actuation, function		Page 261

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Contents

Reading light actuation, function		Page 264

Night light actuation, function		Page 266

Exit lamp actuation, function		Page 267


Windshield wiper system, function	With code (F8X) Rain and light sensor	Page 268
	With code (F8X) Rain and light sensor	Page 270

Windshield wiper system overall network		Page 272


Multifunction steering wheel, function		Page 273

Multifunction steering wheel overall		Page 275
network


Stationary air conditioning, function		Page 276

Stationary air conditioner, overall network		Page 279

Load cold reservoir, function		Page 280

Discharge cold reservoir function		Page 284


Automatic air conditioning, function		Page 286

Automatic climate control, overall network		Page 287

Ventilation function		Page 288

Air supply in normal operation, function		Page 290

Air supply in recirculated air mode,		Page 292
function

Temperature control function		Page 294

Refrigerant circuit, function		Page 295

Heater circuit function		Page 297

Temperature control during heater		Page 299
operation, function

Temperature control during AC operation,		Page 302
function


Auxiliary heater, function		Page 306

Auxiliary heater, overall network		Page 307

Heater operation, function		Page 308

Terminate heater operation, function		Page 309

Trigger heating mode, function		Page 315

Triggering the permanent heater		Page 316
operation, function

Triggering the preselection heater		Page 318
operation, function

Automatic triggering of heat mode,		Page 320
function

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		Contents

Starting operation, function		Page 322

Combustion mode, function		Page 325

Control pause, function		Page 327


Residual heat system, function		Page 329

Residual heat system overall network		Page 330


Component descriptions


Instrument cluster control unit (ICUC),	A1	Page 331
component description

Central gateway control unit (CGW),	A2	Page 333
component description

Component description drive control (CPC)	A3	Page 334
control unit

Component description for engine	A4	Page 335
management (MCM) control unit

Transmission control (TCM) control unit.	A5	Page 337
component description

Anti>theft alarm system control unit (ATA),	A6	Page 338
component description

Cab signal acquisition and actuation	A7	Page 339
module control unit (SCA), component
description

Signal acquisition and actuation module	A8	Page 340
control unit, frame (SCH), component
description

Electronic Brake Control control unit (EBS),	A10b, A10c	Page 341
component description

Retarder control unit (RCM), component	A11	Page 342
description

Component description for automatic air	A12b	Page 344
conditioning control unit

Auxiliary heater control unit, component	A13	Page 346
description

Stationary air conditioner control unit,	A14	Page 347
component description

Front radar sensor (RDF) control unit,	A15	Page 348
component description

Driver door control unit (DCMD),	A16	Page 349
component description

Passenger door module control unit	A17	Page 350
(DCMP), component description

Electronic Air>Processing Unit (EAPU),	A18, 6.16, 6.17, 6.18	Page 351
component description

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Contents

Front axle axle modulator, component	A20, A20a	Page 509
description

Rear axle axle modulator, component	A21, A21a	Page 511
description

Parameterizable special module (PSM)	A22	Page 356
control unit component description

Electronic Stability Program (ESP) control	A25, A25a	Page 357
unit, component description

Level control (CLCS) control unit,	A26	Page 358
component description

Driver switch group, component	A28	Page 359
description

Front passenger switch group, component	A29	Page 360
description

FleetBoard control unit, component	A30	Page 361
description

Battery disconnect switch control unit,	A33	Page 362
component description

Additional steering axle (ASA) control unit,	A34	Page 364
component description

Tire pressure monitor (TPM) control unit,	A35	Page 365
component description

Stationary air conditioner cold reservoir,	A41	Page 366
component description

Stationary air conditioner cold reservoir	A41 b1	Page 367
temperature sensor, component
description

Stationary air conditioner cold reservoir	A41	Page 368
coolant pump, component description

Stationary air conditioner cold reservoir	A41 y1	Page 369
solenoid valve, component description

Modular switch panel control unit (MSF),	A43	Page 370
component description

Instrument panel switch modules,	A44, A45, A46	Page 372
component description

Switch module special equipment,	A47	Page 374
component description

Roof switch modules, component	A48, A49	Page 375
description

Bunk switch module, component	A50, A51	Page 376
description

Driver assistance system (VRDU) control	A53	Page 378
unit, component description

EATU output NOx sensor, component	A57
description	i The EATU output NOx sensor control

	unit (A57) forms one unit with the EATU
	output NOx sensor (A57 b1).

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		Contents

	Vehicles with code (M5R) Engine version	Page 379
	EEV and vehicles with code (M5Y) Engine
	version Euro V
	Vehicles with code (M5Z) Engine version	Page 381
	Euro VI

Pump module, component description	A58	Page 384
	i The SCR control unit (A58) forms one
	unit with the pump module.

Exhaust aftertreatment (ACM) control unit,	A60
component description
	Vehicles with code (M5R) Engine version	Page 386
	EEV and vehicles with code (M5Y) Engine
	version Euro V
	Vehicles with code (M5Z) Engine version	Page 388
	Euro VI

EATU input NOx sensor, component	A70
description	i The EATU input NOx sensor control unit

	(A70) forms one unit with the EATU input
	NOx sensor (A70 b1).
	Vehicles with code (M5R) Engine version	Page 390
	EEV and vehicles with code (M5Y) Engine
	version Euro V
	Vehicles with code (M5Z) Engine version	Page 392
	Euro VI

Lane Assistant camera (SPA), component	A72	Page 395
description

Auxiliary heater heating unit, component	A901	Page 396
description

Exhaust temperature sensor, component	A901 B1	Page 398
description

Component description for coolant	A901 B2	Page 399
temperature sensor

Overheating protection, component	A901 B3	Page 400
description

Glow plug, component description	A901 E	Page 401

Combustion air blower, component	A901 M1	Page 402
description

Auxiliary heater coolant circulation pump,	A901 M2	Page 403
component description

Brake wear sensor, component description	B1, B2	Page 404

Component description for the rpm sensor	B13, B14	Page 405

Brake value sensor, component description	B17, B17a	Page 406

Travel and speed sensor, component	B18	Page 408
description

Level control pressure sensor, component	B20, B21	Page 409
description

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Contents

Travel sensor, component description	B24, B25	Page 410

Condensation sensor, component	B26	Page 412
description

Parking brake pressure switch, component	B30	Page 413
description

Vehicle interior temperature sensor,	B32	Page 414
component description

Air conditioning pressure sensor,	B33	Page 415
component description

Alarm siren, component description	B42	Page 418

Interior protection, component description	B43	Page 419

Component description for accelerator	B44	Page 420
pedal sensor

Outside air sensor, component description	B49	Page 421

Front axle steering angle sensor,	B64	Page 422
component description

Additional steering axle steering angle	B65	Page 423
sensor, component description

Steering wheel angle sensor (SAS),	B66	Page 424
component description

Rain/light sensor, component description	B81	Page 428

Outside temperature sensor, component	B92	Page 430
description

Main shaft rpm sensor, component	B501	Page 431
description

Countershaft rpm sensor, component	B502	Page 432
description

Clutch travel sensor, component	B503	Page 433
description

Range group travel sensor, component	B504	Page 434
description

Transmission oil temperature sensor,	B505	Page 435
component description

Component description for crankshaft	B600	Page 436
position sensor

Component description for camshaft	B601	Page 437
position sensor

Stationary air conditioning air outlet	B908	Page 439
temperature sensor, component
description

Stationary air conditioning air outlet	B909	Page 440
temperature sensor, component
description

Air quality sensor, component description	B928	Page 441

Evaporator temperature sensor,	B929	Page 442
component description

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		Contents

Air outlet temperature sensor, component	B930	Page 443
description

Dual sun sensor, component description	B931	Page 444

Rear lamp unit, component description	E3, E4	Page 445

Headlamp, component description	E5, E6	Page 446

Component description for battery sensor	G1a	Page 447

Fuel metering pump, component	M2	Page 448
description

Power window motor, component	M3	Page 449
description

Door central locking motor, component	M7	Page 450
description

Sliding roof motor, component description	M12	Page 451

Blower motor, component description	M13	Page 452

Residual heat pump, component	M20	Page 453
description

Fresh air/air recirculation flap actuator	M900	Page 454
motor, component description

Temperature control actuator motor,	M901	Page 455
component description

Defroster flap actuator motor, component	M902	Page 456
description

Stationary air conditioner blower motor,	M904	Page 457
component description

Air distribution flap actuator motor,	M905	Page 458
component description

Tachograph (TCO) component description	P1	Page 459

Electronic ignition lock (EIS), component	S1	Page 460
description

Level control operating unit, component	S22	Page 461
description

Right multifunction control lever,	S23	Page 463
component description

EMERGENCY OFF switch, component	S30	Page 464
description

Frame EMERGENCY OFF switch,	S31	Page 465
component description

Cab unlock switch, component description	S36, S37	Page 466

Maintenance flap button, component	S81	Page 467
description

Stowage box switch, component	S83	Page 468
description

Multifunction steering wheel, component	S110, S111	Page 469
description

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Contents

Bunk auxiliary heating button, component	S914, S915	Page 470
description

Bunk auxiliary heater and stationary air	S941, S942	Page 471
conditioning button, component
description

Bunk stationary air conditioner button,	S951, 952	Page 472
component description

Transmitter key, component description	S953	Page 473

Antenna, component description	W3, W6, W7, W8, W9	Page 476

Diagnostic socket, component description	X100.16	Page 477

Multifunction antenna, component	W15	Page 478
description

ABS solenoid valve, component description	Y1, Y2	Page 479

Proportional valve component description	Y12, Y13, Y14, Y15, Y16, Y17, Y18, Y19	Page 480

Stationary air conditioner solenoid valve,	Y27	Page 482
component description

Front axle level control valve unit,	Y20	Page 483
component description

Level control valve unit, 2>axle vehicles,	Y21	Page 485
component description

Level control valve unit, 3>axle vehicles,	Y21a	Page 487
component description

Refrigerant compressor magnetic clutch,	Y40	Page 489
component description

Heating shutoff valve, component	Y49	Page 490
description

Additional steering axle valve unit,	Y39	Page 491
component description

Transmission positioner, component	Y900	Page 492
description

Overflow valve with return flow,	7.01	Page 494
component description

Parking brake valve, component	14.01	Page 495
description

Pressure limiting valve with ventilation,	30.03	Page 497
component description

Coupling head for compressed air	35.02, 35.03	Page 498
supply/brake, component description

Pneumatic central clutch release bearing,		Page 499
component description

Range group module, component		Page 501
description

Wheel sensor, component description		Page 502

Trailer control valve, component		Page 503
description

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			Contents

	3/2>way valve for auxiliary braking effect,		Page 507
	component description

	Front axle axle modulator, component		Page 509
	description

	Rear axle axle modulator, component		Page 511
	description

	Retarder, component description		Page 514

	Steering gear, component description		Page 520

	Power steering fluid reservoir, component		Page 521
	description

	Power steering pump, component		Page 522
	description

	Additional steering axle steering cylinder,		Page 523
	component description

	Additional steering axle flow dividing		Page 524
	valve, component description

	Additional steering axle high pressure		Page 525
	filter, component description

	Heating system heat exchanger,		Page 526
	component description

	Stationary air conditioner heat exchanger,		Page 527
	component description

	Stationary air conditioner check valve,		Page 528
	component description

	Stationary air conditioner expansion valve,		Page 529
	component description

	Condenser, component description		Page 530

	Evaporator, component description		Page 531

	Component description for expansion		Page 532
	valve

	Fluid reservoir, component description		Page 533

	A/C compressor, component description		Page 534

	Auxiliary heater heat exchanger,		Page 535
	component description

	Burner insert with burner tube, component		Page 536
	description


	Location of components


	Arrangement of cable and plug		Page 537
	connections

	Location of line connections and		Page 541
	connectors, interior compartment, left

	Location of line connections and		Page 541
	connectors, interior compartment, right

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Contents

	Location of line connections and		Page 542
	connectors, instrument panel

	Location of line connections and		Page 543
	connectors, frame

	Location of line connections and		Page 544
	connectors, cab

	Location of line connections and		Page 544
	connectors, doors

	Location of line connections and		Page 545
	connectors, roof

	Location of line connections and		Page 545
	connectors, footwell, left

	Location of line connections and		Page 546
	connectors, footwell, right

	Location of line connections and		Page 546
	connectors, engine compartment

	Location of line connections and		Page 547
	connectors, electronics compartment

	Location of line connections and		Page 548
	connectors, driver seat base

	Location of line connections and		Page 548
	connectors, front passenger seat base

	Location of sockets		Page 549

	Location of electrical sockets		Page 550

	Location of ground points		Page 551

	Location of left engine compartment		Page 552
	ground points

	Location of right engine compartment		Page 552
	ground points

	Location of left interior compartment		Page 552
	ground points

	Location of ground points > frame		Page 553

	Location of ground points > instrument		Page 553
	panel

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Functions

SN00.19>W>0001>02H	Complete networking

Illustrated on model 963.4

A1	Instrument cluster (ICUC) control
	unit
A2	Central gateway control unit
	(CGW)
A2 a1	Central data memory (CDS)
A2 a2	Communications interface (COM)
	control unit
A2 a3	Maintenance system (MS) control
	unit
A3	Drive control (CPC) control unit
A4	Engine management control unit
	(MCM)
A5	Transmission control (TCM)
	control unit
A6	Anti>theft alarm system (ATA)
	control unit
A7	Cab signal acquisition and
	actuation module control unit
	(SCA)

					W00.19>1065>76
A8	Frame signal acquisition and	A17	Front passenger door module	A30	FleetBoard“ control unit
	actuation module control unit		(DCMP) control unit	A35	Tire pressure monitor (TPM)
	(SCH)	A18	Electronic Air Processing Unit		control unit
A9	Truck Control Center (TCC)		(EAPU) control unit	A40	Supplemental restraint system
A10	Antilock brake system (ABS)	A20	Front axle axle modulator		(SRS) control unit
	control unit, 4>channel		(Wabco)	A43	Modular switch panel (MSF)
A10b	Electronic brake control (EBS)	A20a	Front axle axle modulator (Knorr)		control unit
	control unit (Wabco)	A21	Rear axle axle modulator	A53	Driver assistance system (VRDU)
A10c	Electronic brake control (EBS)		(Wabco)		control unit
	control unit (Knorr)	A21a	Rear axle axle modulator (Knorr)	A57	EATU output NOx sensor control
A11	Retarder control (RCM) control	A22	Parameterizable special module		unit
	unit		(PSM) control unit	A58	SCR control unit
A12b	Heating, ventilation and air	A25	Electronic Stability Program	A60	Exhaust aftertreatment (ACM)
	conditioning control unit (HVAC)		(ESP“) control unit (Wabco)		control unit
A13	Truck auxiliary heater (ITH)	A25a	Electronic Stability Program	A70	EATU input NOx sensor control
	control unit		(ESP“) control unit (Knorr)		unit
A14	Stationary air conditioning (IAC)	A26	Level control (CLCS) control unit	A72	Lane Assistant camera
	control unit			B66	Steering wheel angle sensor
A15	Front radar sensor (RDF) control				(SAS)
	unit			P1	Tachograph (TCO)
A16	Driver door module (DCMD)			S1	Electronic ignition lock (EIS)
	control unit

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Functions

GF00.19>W>0004H	Overall network, function	2.8.11

MODEL 963

					W00.19>1079>79
A1	Instrument cluster (ICUC) control	A11	Retarder control (RCM) control unit	A33	Battery disconnect switch control
	unit	A12b	Heating, ventilation and air		unit (BESO)
A2	Central gateway control unit (CGW)		conditioning control unit (HVAC)	A34	Additional steering axle (ASA)
A2 a1	Central data memory (CDS)	A13	Truck auxiliary heater (ITH) control		control unit
A2 a2	Communications interface (COM)		unit	A35	Tire pressure monitor (TPM) control
	control unit	A14	Stationary air conditioning (IAC)		unit
A2 a3	Maintenance system (MS) control		control unit	A40	Supplemental restraint system (SRS)
	unit	A15	Front radar sensor (RDF) control		control unit
A3	Drive control (CPC) control unit		unit	A43	Modular switch panel (MSF) control
A4	Engine management control unit	A16	Driver door module (DCMD) control		unit
	(MCM)		unit	A53	Driver assistance system (VRDU)
A5	Transmission control (TCM) control	A17	Front passenger door module		control unit
	unit		(DCMP) control unit	A54	Lower radiator shutters controller
A6	Antitheft alarm system (ATA)	A18	Electronic Air Processing Unit		unit
	control unit		(EAPU) control unit	A55	Upper radiator shutters controller
A7	Cab signal acquisition and	A20	Front axle axle modulator (Wabco)		unit
	actuation module control unit	A20a	Front axle axle modulator (Knorr)	A57	EATU output NOx sensor control
	(SCA)	A21	Rear axle axle modulator (Wabco)		unit
A8	Frame signal acquisition and	A21a	Rear axle axle modulator (Knorr)	A58	SCR control unit
	actuation module control unit	A22	Parameterizable special module	A60	Exhaust aftertreatment (ACM)
	(SCH)		(PSM) control unit		control unit
A9	Truck Control Center (TCC)	A25	Electronic Stability Program (ESP“)	A70	EATU input NOx sensor control unit
A10	Antilock brake system (ABS) control		control unit (Wabco)	A72	Lane Assistant camera
	unit, 4>channel	A25a	Electronic Stability Program (ESP“)
A10b	Electronic Brake Control (EBS)		control unit (Knorr)	B42	Alarm siren
	control unit (Wabco)	A26	Level control (CLCS) control unit	B43	Interior protection sensor
A10c	Electronic Brake Control (EBS)	A28	Driver switch group	B66	Steering wheel angle sensor (SAS)
	control unit (Knorr)	A30	FleetBoard“ control unit	B81	Rain and light sensor (RLS)

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					Functions
CAN 1	Exterior>CAN	LIN 3	Right multifunction control lever>	X100.16	Diagnostic socket
CAN 2	Interior CAN		LIN	X102.15	Trailer socket , 15>pin
CAN 3	Frame CAN	LIN 4	Left multifunction control lever LIN	X103.7	ABS trailer socket 7>pin
CAN 4	Drive train CAN	LIN 5	Radiator shutters LIN	X167.12	Fleet management system
CAN 5	Climate control CAN	LIN 6	LIN SCA/SCH redundancy		electrical connector
CAN 6a	Front axle brakes CAN	LIN 7	Button group LIN	X910	Electrical connector for body
CAN 6b	Rear axle brakes CAN	LIN 8	Level control LIN		manufacturers
CAN 6c	Redundant brakes CAN	LIN 9	Driver switch panel LIN	XR>E1H	CAN>H exterior cable weld point 1
CAN 6d	ESP“ brakes CAN	LIN 10	EAPU>LIN	XR>E1L	CAN>L exterior cable weld point 1
CAN 7	Trailer CAN (PSM)	LIN 11	ATA>LIN	XR>E1M	CAN>ground exterior cable weld
CAN 8	Body manufacturer CAN (PSM)	P1	Tachograph (TCO)		point 1
CAN 9	Telematics CAN	S1	Electronic ignition lock (EIS)	Z1	Cab instrument panel CAN bus star
CAN 10	Diagnostic CAN	S20	Left multifunction control lever		point
CAN 11	Trailer CAN (EBS)	S22	Level control operating unit	Z3	Frame CAN bus star point
CAN 12	Radar CAN	S23	Right multifunction control lever	Z4	Drive CAN bus star point
CAN 13	NOx>CAN	S110	Left multifunction steering wheel
G1a	Battery sensor (IBS)		button group
LIN 1	Rain/light sensor LIN	S111	Right multifunction steering wheel	ASIC	ASIC data bus (Application System
LIN 2	Battery sensor LIN		button group		Integrated Circuit)

1General

The increase in electronic systems in the new Actros means that more and more signals now have to be made available across all the systems. This primarily has an impact on the networking, which has also gained in complexity. Alongside the familiar CAN and ASIC data bus systems the LIN data bus is now increasingly being used. The new Actros alone has 11 LIN data buses, which connect the various control units, switches or other electronic components to each other. The number of CAN data buses by contrast has only risen slightly.

2CAN data bus system

The CAN data bus system enables information to be exchanged quickly and reliably between control units over only a few lines. The information is sent or received successively (serial). The exchange is bidirectional, i.e. each control unit operates as both a transmitter and a receiver.

2.1 Transfer rates

In the new Actros up to 13 different CAN data buses are used. The majority of these CAN data buses have a transfer rate of >250 kBaud and this classes them as high>speed CAN data buses. The reasons for the increase in high>speed CAN data buses are:

•Increase in data rate (number of messages that are sent)

•Almost identical manufacturing costs as for low>speed CAN data buses

•Greater use of LIN data bus in non>critical safety areas

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

•Shortening of flash or parameterization times, in particular through increase in transfer rate for diagnostic CAN (CAN 10)

The following CAN data buses have a transfer rate of 500 kBaud:

•Exterior CAN (CAN 1)

•Interior CAN (CAN 2)

•Frame CAN (CAN 3)

•Climate control CAN (CAN 5)

•Front axle brake CAN (CAN 6a)

•Rear axle brake CAN (CAN 6b)

•Redundancy brake CAN (CAN 6c)

•Brake CAN ESP“ (CAN 6d)

•Diagnostic CAN (CAN 10)

•Radar CAN (CAN 12)

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

The transfer rate of the drive train CAN (CAN 4) was increased to 667 kBaud, because the high number of messages had significantly increased the bus operating rate. If the data rate was not increased, then there is the risk that some messages with low priority could no longer be sent due to the bus operating rate.

To ensure that freight forwarders, for example for fleet management, can continue to call up specific information on vehicle location, current speed, etc. the transfer rate of the telematics CAN (CAN 9) has been retained at 250 kBaud.

The transfer rates have also been retained on the trailer CAN (PSM) (CAN 7), the body manufacturer CAN (PSM) (CAN and the trailer CAN (EBS) (CAN 11). They are 125 kBaud, whereby they are still classified as low>speed CAN data buses.

The transfer rate for the NOx>CAN (CAN 13) has not been changed either and is > as before > 250 kBaud.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

2.3CAN neutral points and bus terminating resistors

Because of the high transfer rates on high>speed CAN data buses, there may be some reflections in the lines. Bus termination resistors are used to avoid reflections that would lead to the falsification of actual information. The characteristic impedance of the electrical line is important for the bus termination resistor. The total bus terminating resistor on a high>speed CAN data bus is 60 ].

In the neutral points for the cab instrument panel CAN bus (Z1) and frame CAN bus (Z3) the bus terminating resistors are integrated into the neutral points. The drive CAN bus neutral point (Z4) only includes those ferrite elements that are also installed in the neutral points for interference suppression of

high>frequency interference pulses.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3LIN data bus

The LIN data bus is an inexpensive serial subbus, which replaces the CAN data bus in the area of uncritical data transfer. The voltage supply for the LIN data bus is 12 V. This is realized internally in the control units through voltage dividers. Signals are transmitted through a single>wire line. The max. data rate is 20 kBaud. Communication refers to ID>based communication. All subscribers connected to the LIN data bus receive the message, but only one subscriber responds to it.

A LIN data bus subscriber never sends information by itself, as is the case, for example with a CAN data bus subscriber. Subscribers of the LIN data bus only ever respond to a query.

2.2Gateways

To compensate for the different transfer speeds, some control units also act as a gateway:

•The central gateway control unit (CGW) (A2) routes the respective messages from the exterior, interior, frame, telematics and diagnostic CAN (CAN 1, 2, 3, 9 and 10).

•The modular switch panel (MSF) control unit (A43) acts as a gateway between the interior CAN (CAN 2), the ASIC data bus (ASIC) and the three LIN data buses to the button groups on the multifunction steering wheel, the left multifunction control lever and the level control operating unit.

•The Electronic Brake Control (EBS) control unit (A10b) or (A10c), depending on the version, sends the messages from the frame CAN (CAN 3) to the front axle brake CAN (CAN 6a), the rear axle brake CAN (CAN 6b), the brake CAN ESP“ (CAN 6d) as well as, where applicable, the trailer CAN (EBS) (CAN 11) and vice versa.

•The drive control (CPC) control unit (A3) acts as an interface between the frame CAN (CAN 3) and the drive train CAN

(CAN 4).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

The bus terminator on the exterior CAN (CAN 1) is realized by using bus terminating resistors within the central gateway control unit (CGW) (A2) and the Electronic Air>Processing Unit (EAPU) control unit (A18). Located in both control units is a 120 ] resistor each. The parallel connection then yields a total bus terminating resistance of 60 ].

In the diagnostic CAN (CAN 10) the bus terminator is realized by a 60 ] resistor in the central gateway control unit (CGW) (A2).

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Functions

4ASIC data bus system

The previously familiar ASIC data bus system is also used in the new Actros.

The ASIC data bus (ASIC) belongs to the so>called subbuses. In contrast to conventional switches which switch via their own contacts and are connected to their components via separate electrical lines (e.g. motors, solenoid valves, switch inputs, lighting devices), the ASIC data bus performs these tasks.

The electronics installed in the ASIC signal switches notifies the modular switch panel (MSF) control unit (A43) the following via the ASIC data bus (ASIC):

fswitch position (open, closed, operated, not operated)

fFunctionality (normally closed contact, normally open contact, changeover contact)

fSystem affiliation (e.g. headlamp cleaning system button,

power take>off 1 button, etc.)

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5Virtual control units

Each ASIC signal switch is connected over three contacts (pins) to the ASIC data bus (ASIC), and it is evaluated by the modular switch panel (MSF) control unit (A43). It is thus possible to install each ASIC signal switch at any arbitrary point on the individual switch modules.

For currents up to a maximum of 20 A there continues to be load switches which as before switch via their own contacts and are connected to their components through electrical lines.

These load switches are only connected to the switch panel via the ASIC contacts for separate background lighting.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

6Safety strategy

Virtual control units are not equipped with their own housing. They are integrated into the hardware and software of other control units. In Star Diagnosis and the instrument cluster control unit (ICUC) (A1) they appear as independent control units. Among the virtual control units are the central data memory (CDS) (A2 a1), the communications interface (COM) control unit (A2 a2) and the maintenance system (MS) control unit (A2 a3), which are all integrated into the central gateway control unit (CGW) (A2).

With the aid of the central data memory (CDS) (A2 a1) the parameters for the electronic control units can be reset to manufacturer default settings.

Several control units have a redundant connection over LIN or CAN data buses. The redundant connection serves as an emergency communication, if the actual CAN connection malfunctions. The use of redundant LIN or CAN data buses is dependent on the safety relevance of each system.

The service brake system, for example has a redundant CAN data bus connection between the axle modulators.

LIN data buses serve as redundancies between the sensor and actuator module, cab (SCA) control unit (A7) and the sensor and actuator module, chassis (SCH) control unit (A8) as well as between the instrument cluster control unit (ICUC) (A1) and the Electronic Air>Processing Unit (EAPU) control unit (A18).

	Instrument cluster control unit (ICUC),	A1	Page 331
	component description

	Central gateway control unit (CGW),	A2	Page 333
	component description

	Component description drive control (CPC)	A3	Page 334
	control unit

	Component description for engine	A4	Page 335
	management (MCM) control unit

	Transmission control (TCM) control unit.	A5	Page 337
	component description

	Antitheft alarm system control unit (ATA),	A6	Page 338
	component description

	Cab signal acquisition and actuation	A7	Page 339
	module control unit (SCA), component
	description

	Signal acquisition and actuation module	A8	Page 340
	control unit, frame (SCH), component
	description

	Electronic Brake Control (EBS) control unit,	A10b, A10c	Page 341
	component description

	Retarder control unit (RCM), component	A11	Page 342
	description	i Only in vehicles with code (B3H)

		Secondary water retarder.


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Functions

Component description for automatic air	A12b	Page 344
conditioning control unit

Auxiliary heater control unit, component	A13	Page 346
description	i Only in vehicles with code (D6M) Cab

	auxiliary water heater or with code (D6N)
	Cab and engine auxiliary water heater.

Stationary air conditioner control unit,	A14	Page 347
component description

Front radar sensor (RDF) control unit,	A15	Page 348
component description

Driver door control unit (DCMD),	A16	Page 349
component description

Passenger door module control unit	A17	Page 350
(DCMP), component description

Electronic Air>Processing Unit (EAPU),	A18	Page 351
component description	i The Electronic Air>Processing Unit

	(EAPU) control unit (A18) forms a module
	together with the Electronic Air>Processing
	Unit (EAPU).

Front axle axle modulator, component	A20, A20a	Page 509
description

Rear axle axle modulator, component	A21, A21a	Page 511
description

Parameterizable special module (PSM)	A22	Page 356
control unit component description

Electronic Stability Program (ESP) control	A25, A25a	Page 357
unit, component description

Level control (CLCS) control unit,	A26	Page 358
component description

FleetBoard control unit, component	A30	Page 361
description

Battery disconnect switch control unit,	A33	Page 362
component description	i Only in vehicles with one of the

	following codes:
	• Code (E5T) ADR model class EX/II,
	including AT
	• Code (E5U) ADR model class EX/III,
	including EX/II and AT
	• Code (E5V) ADR model class FL,
	including EX/II, EX/III and AT
	• Code (E5X) ADR model class AT
	• Code (E5Z) Accessories, ADR
	• Code (E9D) Preinstallation, for bipolar
	battery circuit breaker
	• Code (E9E) ADR preinstallation, without
	chassis shielding

Additional steering axle (ASA) control unit,	A34	Page 364
component description

Tire pressure monitor (TPM) control unit,	A35	Page 365
component description

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		Functions

Modular switch panel control unit (MSF),	A43	Page 370
component description

Driver assistance system control unit	A53	Page 378
(VRDU), component description

EATU output NOx sensor, component	A57
description	i The EATU output NOx sensor control

	unit (A57) together with the EATU output
	NOx sensor (A57 b1) forms a unit.
	Vehicles with code (M5R) EEV engine	Page 379
	version and vehicles with code (M5Y) Euro
	V engine version
	Vehicles with code (M5Z) Euro VI engine	Page 381
	version

Pump module, component description	A58	Page 384
	i The SCR control unit (A58) together
	with the pump module forms a unit.

Exhaust aftertreatment (ACM) control unit,	A60
component description
	Vehicles with code (M5R) EEV engine	Page 386
	version and vehicles with code (M5Y) Euro
	V engine version
	Vehicles with code (M5Z) Euro VI engine	Page 388
	version

EATU input NOx sensor, component	A70
description	i The EATU input NOx sensor control unit

	(A70) together with the EATU input NOx
	sensor (A70 b1) forms a unit.
	Vehicles with code (M5R) EEV engine	Page 390
	version and vehicles with code (M5Y) Euro
	V engine version
	Vehicles with code (M5Z) Euro VI engine	Page 392
	version

Lane Assistant (SPA) camera, component	A72	Page 395
description

Steering wheel angle sensor (SAS),	B66	Page 424
component description

Tachograph (TCO) component description	P1	Page 459

Electronic ignition lock (EIS), component	S1	Page 460
description

i Electronic systems, Actros, model 963 > 09/2011 >

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Functions

GF00.20>W>0005H	Maintenance system, function	2.8.11

MODEL 963

1CAN messages

2«Maintenance» menu

A1	Instrument cluster (ICUC) control
	unit
A1 p1	Multifunction display
A2	Central gateway control unit
	(CGW)
A43	Modular switch panel (MSF)
	control unit
CAN 2	Interior CAN
CAN 3	Frame CAN
CAN 10	Diagnostic CAN
LIN 7	Button group LIN
S110	Left multifunction steering wheel
	button group

			W00.20>1076>76
S111 Right multifunction steering wheel	Z1 Cab instrument panel CAN bus star	Z3	Frame CAN bus star point
button group	point	X100.16	Diagnostic socket

General information

The maintenance system (WS):

fIs a software which is integrated as a virtual control unit into the central gateway control unit (CGW) (A2),

frecords all the required measurement data as CAN messages

(1) using the CAN data bus system and

fcalculates the load>dependent service life and forecast data for each maintenance item in order to determine the service dates.

i Load>dependent forecasting is used to carry out the following:

fIndividual determination of the service dates for each maintenance item and they can be called up in the «Maintenance» (2) menu of the instrument cluster control unit (ICUC) (A1).

fDisplay of pending maintenance items as a message in the multifunction display (A1 p1) when the ignition is switched on.

The menu is operated using the left multifunction steering wheel button group (S110) and the right multifunction steering wheel button group (S111).

Maintenance information is shown in the multifunction display (A1 p1) of the instrument cluster control unit (ICUC) (A1). The instrument cluster control unit (ICUC) (A1) acts as a display unit.

A maintenance item is reset using the left multifunction steering wheel button group (S110) and the right multifunction steering wheel button group (S111) or with the aid of Star Diagnosis through the diagnostic socket (X100.16).

	Maintenance system overall network		Page 23

	Data acquisition function		Page 24

	Data storage function		Page 29

	Life cycle consumption calculation,		Page 35
	function

	Forecast calculation, function		Page 34

	Normal mode displays function		Page 30

	Reset service item function		Page 32

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Functions

GF00.20>W>0005>02H Maintenance system overall network

					W00.20>1079>79
A1	Instrument cluster (ICUC) control	A11	Retarder control (RCM) control	LIN 6	LIN SCA/SCH redundancy
	unit		unit	LIN 7	Button group LIN
A2	Central gateway control unit (CGW)	A18	Electronic Air Processing Unit	LIN 10	EAPU>LIN
A2a3	Maintenance system (MS) control		(EAPU) control unit	P1	Tachograph (TCO)
	unit	A43	Modular switch panel (MSF)	S110	Left multifunction
A3	Drive control (CPC) control unit		control unit		steering wheel button group
A4	Engine management control unit	A60	Exhaust aftertreatment (ACM)	S111	Right multifunction
	(MCM)		control unit		steering wheel button group
A5	Transmission control (TCM) control	CAN 1	Exterior>CAN	X100.16	Diagnostic socket
	unit	CAN 2	Interior CAN	Z1	Cab instrument panel CAN bus
A7	Cab signal acquisition and	CAN 3	Frame CAN		star point
	actuation module control unit	CAN 4	Drive train CAN	Z3	Frame CAN bus star point
	(SCA)	CAN 10	Diagnostic CAN	Z4	Drive CAN bus star point
A8	Frame signal acquisition and
	actuation module control unit
	(SCH)

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Functions

GF00.20>W>3000H	Data acquisition function	2.8.11

MODEL 963

A1 Instrument cluster (ICUC) control unit

A1p1 Multifunction display

A2 Central gateway control unit (CGW)

A3 Drive control (CPC) control unit

A4 Engine management control unit (MCM)

A5 Transmission control (TCM) control unit

A7 Cab signal acquisition and actuation module control unit (SCA)

A8 Frame signal acquisition and actuation module control unit (SCH)

A11 Retarder control unit (RCM) (in vehicle with code (B3H) Secondary water retarder)

B48 Air filter sensor

B75 1st front axle temperature sensor

B77 1st rear axle temperature sensor

B92 Outside temperature sensor

B505 Transmission oil temperature sensor

B600 Crankshaft position sensor

B605 Engine oil fill level sensor

B933 Coolant temperature sensor (in vehicles with code (B3H) Secondary water retarder)

A18 Electronic Air Processing Unit (EAPU) control unit

A43 Modular switch panel (MSF) control unit

A60 Exhaust aftertreatment (ACM) control unit (in vehicles with code (M5Z) Euro VI engine version)

B1 Left 1st front axle brake wear sensor

B2 Right 1st front axle brake wear sensor

B3 Left 2nd front axle brake wear sensor

B4 Right 2nd front axle brake wear sensor

CAN 1	Exterior>CAN
CAN 2	Interior CAN
CAN 3	Frame CAN
CAN 4	Drive train CAN
CAN 10	Diagnostic CAN
LIN 6	LIN SCA/SCH redundancy
LIN 7	Button group LIN
LIN 10	EAPU>LIN
P1	Tachograph (TCO)

W00.20>1078>79

B7 Left 1st rear axle brake wear sensor

B8 Right 1st rear axle brake wear sensor

B9 Left 2nd rear axle brake wear sensor

B10 Right 2nd rear axle brake wear sensor

B18 Travel and speed sensor

B26 Condensation sensor

B37 Exhaust pressure sensor upstream of diesel oxidation catalytic converter (in vehicles with code (M5Z) Euro VI engine version)

B38 Exhaust pressure sensor downstream of diesel particulate filter (in vehicles with code (M5Z) Euro VI engine version)

S110	Left multifunction steering wheel
	button group
S111	Right multifunction steering
	wheel button group
Z1	Cab instrument panel CAN bus
	star point
Z3	Frame CAN bus star point
Z4	Drive CAN bus star point
X100.16	Diagnostic socket

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Functions

General information

The recording of data function enables the maintenance system (WS) to receive two different types of input factors for calculating the load>specific maintenance intervals:

fBasic data, which are determined unchangeable at first in the form of a parameterization and

fmeasured values, which are sensed continuously.

Thus, two functions are differentiated:

fAcquiring the basic data

fAcquiring the measured values

Acquiring the basic data

The maintenance system (WS) requires certain basic data (parameters), which:

fare a prerequisite for the general function and

fwhich are used to adapt the maintenance system (WS) to the vehicle and the operating fluids.

The basic data are acquired in the form of the following parameterizations:

fBasic parameterization

fVehicle>specific parameterization

fSubsequent parameterization

fParameterization of operating fluids

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Subsequent parameterization

Subsequent parameterization:

fmakes it possible to change parameters, which are connected to constructional vehicle changes for instance or special customer’s requests, such as the «time>based servicing scheme grid» parameter and

fmay only be carried out in workshops authorized by Mercedes>Benz.

i Querying and operation are conducted using the left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111) or using Star Diagnosis through the diagnostic socket (X100.16).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Basic parameterization

The basic parameterization (base parameterization):

fincludes the pre>assignment of certain parameters with values and is a prerequisite for the function of the maintenance system (WS) and

fis made at the manufacturer of the central gateway control unit (CGW) (A2).

Vehicle>specific parameterization

The vehicle>specific parameterization:

fis used to adapt the maintenance system (WS) to the vehicle model and the vehicle equipment, or to the special features of the individual maintenance items, such as

their cut>in or cutout and

fis carried out in the Mercedes>Benz production plant.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Parameterization of operating fluids

Parameterization of operating fluids:

fmakes it possible to change parameters with regard to the properties of fuels and lubricants, which can change during the operation of the vehicle, such as engine oil quality, engine oil viscosity, transmission oil quality, or sulfur content of the fuel and

fmay also be carried out by other workshops.

i The parameters can be checked and changed if necessary through the «Fuels and Lubricants» submenu in the «Adjustments» menu of the menu system. Querying and operation are conducted using the left multifunction steering wheel button group (S110) and right multifunction steering wheel button group (S111) or using Star Diagnosis through the

diagnostic socket (X100.16).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

Acquiring the measured values

The measurement values are recorded using different sensors, which are connected to the system>specific control units or the locally best suited modules, e.g. on the sensor and actuator module, cab (SCA) control unit (A7).

The analog measured values are turned into corresponding CAN messages by the particular control units or modules; these CAN messages are transmitted with the aid of the CAN data bus system to the maintenance system (WS).

The maintenance system (WS):

fprocesses the recorded measured values converting them to input data for the life cycle consumption and forecast calculation, whereby the quality of processed measured values is of major significance in terms of the forecast calculation result and

fmonitors the acquired measured values for errors, exceeding limit values, and plausibility.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Transmission (TCM) control unit (A5)

The transmission control unit (TCM) (A5):

facquires the measured «transmission oil temperature» value from the transmission oil temperature sensor (B505) and

fsends a corresponding CAN message over the drive train CAN (CAN 4) and over the drive train CAN bus neutral point (Z4) to the drive control (CPC) control unit (A3) and from there over the frame CAN (CAN 3) and over the frame CAN bus neutral point (Z3) to the central gateway control unit (CGW) (A2).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Drive control (CPC) control unit (A3)

The drive control (CPC) control unit (A3):

facquires the measured value for air filter contamination by the air filter sensor (B48) and

fsends a corresponding CAN message over the frame CAN (CAN 3) and over the frame CAN bus neutral point (Z3) to the central gateway control unit (CGW) (A2).

Engine management (MCM) control unit (A4)

The engine management (MCM) control unit (A4):

facquires the measured «crankshaft rpm» value from the crankshaft position sensor (B600),

facquires the measured «engine oil temperature» value from the engine oil fill level sensor (B605),

fsends corresponding CAN messages over the drive train CAN (CAN 4) and over the drive train CAN bus neutral point (Z4) to the drive control (CPC) control unit (A3) and from there over the frame CAN (CAN 3) and over the frame CAN bus neutral point (Z3) to the central gateway control unit (CGW)

(A2).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Retarder control (RCM) control unit (A11)

i Only in vehicles with code (B3H) Secondary water retarder.

The retarder control unit (RCM) (A11):

facquires the measured «coolant temperature» value from the coolant temperature sensor (B933) and

(CGW) (A2).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

Cab signal acquisition and actuation module (SCA) control unit (A7)

The sensor and actuator module, cab (SCA) control unit (A7):

facquires the measured «brake wear» value at the installed front axles from the following brake wear sensors:

fLeft 1st front axle brake wear sensor (B1)

fRight 1st front axle brake wear sensor (B2)

fLeft 2nd front axle brake wear sensor (B3)

fRight 2nd front axle brake wear sensor (B4)

facquires the measured «front axle oil temperature» value from the front axle temperature sensor

(B75) at the first front axle,

facquires the measured «outside temperature» value from the outside temperature sensor (B92) and

fsends a corresponding CAN message over the interior CAN (CAN 2) and over the cab instrument panel CAN bus neutral point (Z1) to the central gateway control unit (CGW) (A2).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Electronic Air>Processing Unit (EAPU) control unit (A18)

i Only in vehicles with code (B1C, B1D, B1E) Electronic Air> Processing Unit (EAPU).

The Electronic Air>Processing Unit (EAPU) control unit (A18)

frecords the measured «condensation water level» value from the condensation sensor (B26),

fdelivers the «reservoir pressure for brake circuit 1 and 2» measurement value from the integrated reservoir pressure sensors for brake circuit

1 and 2,

fsends corresponding CAN messages over the exterior CAN (CAN 1) to the central gateway control unit (CGW) (A2),

fsends corresponding LIN messages over the redundant EAPU>LIN (LIN 10) to the instrument cluster control unit (ICUC) (A1).

Sensor and actuator module, chassis (SCH) control unit (A8)

The sensor and actuator module, chassis (SCH) control unit (A8):

facquires the measured «brake wear» value at the installed rear axles from the following brake wear sensors:

>Left 1st rear axle brake wear sensor (B7)

>Right 1st rear axle brake wear sensor (B8)

>Left 2nd rear axle brake wear sensor (B9)

>Right 2nd rear axle brake wear sensor (B10)

frecords the «rear axle oil temperature» value at the first rear axle from the 1st rear axle temperature sensor (B77),

fsends corresponding CAN messages over the exterior CAN (CAN 1) to the central gateway control unit (CGW) (A2).

i In the event of any data transfer interference between the central gateway control unit (CGW) (A2) and the sensor and actuator module, cab (SCA) control unit (A7) or the sensor and actuator module, chassis (SCH) control unit (A8) the data can be sent as LIN messages redundantly over the redundancy LIN

SCA/SCH (LIN 6).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Exhaust aftertreatment (ACM) control unit (A60)

i Only for vehicles with code (M5Z) Engine version Euro VI.

The exhaust aftertreatment (ACM) control unit (A60)

facquires the exhaust pressure measurement values on the diesel oxidation catalytic converter/diesel particulate filter from the following pressure sensors:

>exhaust pressure sensor upstream of diesel oxidation catalytic converter (B37)

>exhaust pressure sensor downstream of diesel particulate filter (B38)

Instrument cluster control unit (ICUC),	A1	Page 331
component description

Central gateway control unit (CGW),	A2	Page 333
component description

Component description drive control (CPC)	A3	Page 334
control unit

Component description for engine	A4	Page 335
management (MCM) control unit

Transmission control (TCM) control unit.	A5	Page 337
component description

Cab signal acquisition and actuation	A7	Page 339
module control unit (SCA), component
description

Signal acquisition and actuation module	A8	Page 340
control unit, frame (SCH), component
description

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Functions

Retarder control unit (RCM), component	A11	Page 342
description	i Only in vehicles with code (B3H)

	Secondary water retarder.

Electronic Air>Processing Unit (EAPU),	A18	Page 351
component description	i Only in vehicles with code (B1C)

	Electronic Air>Processing Unit (EAPU) low
	or with code (B1D) Electronic Air>
	Processing Unit (EAPU) mid or with code
	(B1E) Electronic Air>Processing Unit (EAPU)
	high.

Modular switch panel control unit (MSF),	A43	Page 370
component description

Exhaust aftertreatment (ACM) control unit,	A60
component description
	Vehicles with code (M5R) EEV engine	Page 386
	version and vehicles with code (M5Y) Euro
	V engine version
	Vehicles with code (M5Z) Euro VI engine	Page 388
	version

Brake wear sensor, component description	B1, B2, B3, B4, B7, B8, B9, B10	Page 404

Travel and speed sensor, component	B18	Page 408
description

Condensation sensor, component	B26	Page 412
description

Exhaust pressure sensor upstream of diesel	B37	Page 416
oxidation catalytic converter, component	i Only for vehicles with code (M5Z)
description
	Engine version Euro VI.

Exhaust pressure sensor downstream of	B38	Page 417
diesel particulate filter, component	i Only for vehicles with code (M5Z)
description
	Engine version Euro VI.

Outside temperature sensor, component	B92	Page 430
description

Transmission oil temperature sensor,	B505	Page 435
component description

Component description for crankshaft	B600	Page 436
position sensor

Component description for engine oil fill	B605	Page 438
level sensor

Retarder, component description	B933	Page 514
	i Only in vehicles with code (B3H)
	Secondary water retarder.
	The coolant temperature sensor (B933) is
	located on the retarder.

Tachograph (TCO) component description	P1	Page 459

Multifunction steering wheel, component	S110, S111	Page 469
description

Diagnostic socket, component description	X100.16	Page 477

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Functions

GF00.20>W>3002H	Data storage function	2.8.11

MODEL 963

The maintenance system (WS) is equipped with different data memories:

fMaintenance memory

fService messages memory

fInternal memory

fMirror memory

fFault memory

Saving maintenance data in the maintenance memory

The maintenance memory:

fis a ring memory, in which the entries are stored in ascending sequence based on the date and time and

fis used to save the basic maintenance data when a maintenance item is reset.

It is possible to save data of consecutive inspections for each

maintenance item, afterwards the oldest entry is overwritten.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Saving service messages in the service messages memory

The service messages memory:

fis a ring memory, in which the data of up to 30 consecutive service messages can be stored,

iHere, the next service message with the highest urgency is then stored. If the data memory capacity has been reached, then the oldest entries are deleted first.

fdocuments the first>time occurrence of a service message and

fsaves the urgency level of the service message, the date, the maintenance interval travel distance, the kilometer reading of the speedometer and the relative life cycle consumption.

fsaves the major assembly designation and

fdocuments whether a service message was confirmed.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Saving service life data, forecast data, maintenance memory data and parameters in internal memory:

In the internal memory:

fthe service life and forecast data are always saved after switching off the ignition or after every operating hour,

fthe data are preserved after the ignition is switched off,

fthe maintenance memory data are stored after a maintenance operation was reset for a maintenance item,

fthe service memory data are saved when a message appears or is confirmed,

fparameters are saved again after a change is made and the Parameterization mode is exited and

fthe new parameters are also stored in the mirror memory of the instrument cluster control unit (ICUC) (A1) to enable parameterization to be conducted when a control unit is replaced.

Saving service life data, forecast data, maintenance memory data and parameters in mirror memory:

The mirror memory is a nonvolatile memory in the instrument cluster (ICUC) (A1), in which all the important service life data and parameters are saved every 5 operating hours.

If the central gateway control unit (CGW) (A2) has to be replaced, then the data from the mirror memory in the instrument cluster control unit (ICUC) (A1) can be copied into the new central gateway control unit (CGW) (A2). The parameterization of the central gateway control unit (CGW) (A2) is restored separately through the central data memory (CDS) in the instrument cluster (ICUC) (A1).

Storing faults and text messages in the diagnostic trouble code memory

The diagnostic trouble code memory stores any fault or text message that appears for the first time.

Consecutive new entries are stored one after the other.

	Instrument cluster control unit (ICUC),	A1	Page 331
	component description

	Central gateway control unit (CGW),	A2	Page 333
	component description


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Functions

GF00.20>W>3003H	Normal mode displays function	2.8.11

MODEL 963

1 «Maintenance» menu

2«Diagnosis» menu

A1 Instrument cluster (ICUC) control unit

A1p1 Multifunction display

A2 Central gateway control unit (CGW)

A43 Modular switch panel (MSF) control unit

CAN 2 Interior CAN

CAN 3 Frame CAN

LIN 7 Button group LIN

S110 Left multifunction steering wheel button group

		W00.20>1077>76
S111 Right multifunction steering wheel	Z1 Cab instrument panel CAN bus star	Z3 Frame CAN bus star point
button group	point

General information

The central gateway control unit (CGW) (A2) sends the CAN messages with the display information over the frame CAN (CAN 3) and over the frame CAN bus neutral point (Z3) to the instrument cluster control unit (ICUC) (A1).

The maintenance information display is generated in the instrument cluster control unit (ICUC) (A1) and shown on the multifunction display (A1 p1).

The following service information is shown:

fService messages

fService information

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Service messages

Service messages are text warnings that indicate upcoming maintenance operations. They contain the «service date» and «remaining driving distance» forecast data for the listed maintenance item or its urgency status (e.g. Service due). They are automatically generated by the maintenance system

(WS) as per their urgency status and shown on the multifunction display (A1 p1).

If there are any service messages pending, they are shown each time the ignition is switched on along with any other pending messages. Service messages can only be canceled by

acknowledging them.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

Five urgency levels of service messages are differentiated:

fNo message

fEarly warning

fService due

fService now (can be acknowledged)

fService now (cannot be acknowledged)

i Any acknowledgeable service messages has to be acknowledged. The associated service dates have to be observed and the maintenance operations have to be carried out.

If service messages are skipped, the operational and road safety of the vehicle can be jeopardized. If a maintenance operation is carried out late or not at all, the wear at the vehicle or at the

major assemblies will increase at any rate.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Service immediately

The life cycle consumption has reached the exceeding limit. The due service date was significantly exceeded.

A highlighted text information is displayed in yellow.

When acknowledging the service message, the next pending service message, where applicable, is then shown.

Service now (cannot be acknowledged)

The life cycle consumption has extended far beyond the overrun limit. The Service due date was exceeded to an extreme extent. A text information highlighted in yellow is shown and the yellow indicator lamp with the wrench symbol. When the maximum brake wear is reached, the indicator lamp also appears with the brake symbol.

When acknowledging the service message, the next pending service message, where applicable, is then shown.

Advance warning

This is information on the maintenance item and the remaining driving distance until the service is due.

The life cycle consumption is still below 100%.

Service will be due within the next days and the life cycle consumption will then be

100%.

When acknowledging the service message, the next pending service message, where applicable, is then shown.

Service due

The life cycle consumption is 100%.

The due service date was reached or exceeded.

If the service message is acknowledged, the next service message

of the «Service due» urgency level is displayed if applicable.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Service information

Service information can be called up at any given time in the «Maintenance» menu in the instrument cluster and shown on the multifunction display (A1 p1). The system is operated using the left multifunction steering wheel button group (S110) and the right multifunction steering wheel button group (S111).

The service information listed in the «Maintenance» menu on a maintenance item contains the same information as the service messages. The interval number is also shown on the multifunction display (A1 p1).

If the «Reset?» prompt is shown in the multifunction display (A1 p1), the maintenance item above the left multifunction steering wheel button group (S110) and the right multifunction steering wheel button group (S111) can be reset.

If the multifunction display (A1 p1) shows a display without any forecast data under the maintenance item text, there are no forecast data available for the maintenance item.

Example: Transmission

> >.> >.> >

Instrument cluster control unit (ICUC),	A1	Page 331
component description

Central gateway control unit (CGW),	A2	Page 333
component description

Multifunction steering wheel, component	S110, S111	Page 469
description

i Electronic systems, Actros, model 963 > 09/2011 >

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Functions

GF00.20>W>3005H

Reset service item function

2.8.11

MODEL 963

Reset maintenance items

Requirements:

Execution:

f Maintenance operation was conducted

f Confirm the «Reset?» selection internally through the multifunction display (A1 p1)

Vehicle at rest

in the instrument cluster control unit (ICUC) (A1) in the respective maintenance item

Ignition switched on

in the Maintenance menu by pressing the left multifunction steering wheel button

Hand brake applied

group (S110) and the right multifunction steering wheel button group (S111)

f Confirm externally through the diagnostic socket (X100.16) using Star Diagnosis

Directly measured maintenance items

Accumulating maintenance items

Time>based servicing scheme

(e.g. brake linings)

(operation oils)

(e.g. lubrication of steering knuckles)

Manual reset

f Manual reset

f Possible adjustment of the new operating fluid

General information

If a maintenance operation was carried out, the associated maintenance item has to be reset.

For safety reasons the reset of maintenance items is only possible, if the vehicle’s hand brake is tightened and the ignition is switched on. When driving, the instrument cluster control unit (ICUC) (A1) blocks this function.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Reset maintenance items for directly measured maintenance items

Manual reset

The maintenance system (WS):

>recognizes, after the maintenance was carried out, that the currently valid measured wear value lies below the value for the calculation start and

>permits a reset.

After a manual reset:

>the entire service life data (with the exception of the operating time and the total travel distance) is reset to the initialization values,

>the interval number is incremented,

>bars are shown in the forecast data,

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

A differentiation is made between three functions:

fReset maintenance items for directly measured maintenance items

fReset maintenance items for accumulated maintenance items

fReset maintenance items with a time>based servicing scheme

All maintenance items, including the time>based servicing scheme,

are reset manually.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

>bars are shown in the forecast data,

>then the service messages memory is deleted and

>basic maintenance data that have accrued so far are taken over into the maintenance memory.

A reset for the «brake» maintenance item is only possible, if the currently valid measured values for both brakes on one axle are below the brake wear value of 18%.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

Reset maintenance items for accumulated maintenance items

Manual reset

After a manual reset:

>the service life data are reset to their initialization values,

>then the service messages memory is deleted,

>the basic maintenance data that have incurred this far are transferred to the maintenance memory,

>the interval number is incremented,

>bars are shown in the forecast data, and

>where fuels and lubricants are used, that differentiate from the previous fuel and lubricants, then these are to be set in the Fuels and Lubricants menu below the corresponding major assembly.

Reset maintenance items with a time>based servicing scheme

i A reset is only possible after 50 h operating time in the current maintenance interval.

Manual reset

After a reset:

>the entire life cycle data are reset and their initialization values are taken over again,

>then the service messages memory is deleted,

>basic maintenance data that have incurred this far are transferred to the maintenance memory,

>the interval number is incremented, and

>a new forecast date without remaining driving distance is shown.

Instrument cluster control unit (ICUC),	A1	Page 331
component description

Central gateway control unit (CGW),	A2	Page 333
component description

Multifunction steering wheel, component	S110, S111	Page 469
description

Diagnostic socket, component description	X100.16	Page 477

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Functions

GF00.20>W>3011H	Forecast calculation, function	2.8.11

MODEL 963

General information

A forecast is used to schedule the vehicle’s visit to the workshop beforehand.

The maintenance system (WS) calculates the individual forecast data for each maintenance item during each calculation cycle:

fRemaining total time

fRemaining driving distance

fMaintenance date

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Forecasting start

As long as the life cycle consumption is still below the forecasting start, no forecast data are calculated. There is not yet a sufficient amount of information below the forecasting start to be able to calculate reliable forecast data.

After each reset the forecast data are marked «not predictable» by the base parameterization. After exceeding the forecasting start, the predictions are calculated based on the current life cycle consumption values.

The forecasting start for accumulated, directly measured maintenance items and for time>based servicing schemes lies at 50 h operating time.

Forecasting

The forecast data are calculated individually for each maintenance item. As a result, the service dates of the individual maintenance items do not have a fixed time interval between one

another.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Time>based servicing

The life cycle consumption increases irrespective of the load of the maintenance item in proportion to the elapsed time.

The service date depends exclusively on the calculated remaining total time. The remaining total time is calculated beginning with the start of the total time calculation.

The prognosis calculation is based on the following input parameters:

fTotal time

fOperating time

fDistance

fLife cycle consumption

The service date of the time>based servicing scheme is exclusively specified via the parameterizable time maintenance grid. The forecast data are issued on the multifunction display (A1 p1) in

the instrument cluster (ICUC) (A1).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Thus, the workshop equipment is optimally utilized.

The forecast data for the remaining total time and the remaining driving distance apply exactly to each service date of a maintenance item and represent the remainder values until the due date.

The individual service date for each maintenance item is the point in time at which the next maintenance is due.

i This applies provided the workshop equipment is used with a constant load.

If maintenance items are close to each other, then a decision should be reached in consultation with the customer as to whether they can be conducted together during a maintenance visit to the workshop.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

After confirmation of a conducted time>based servicing scheme, the new service date is displayed in the multifunction display (A1 p1).

The remaining distance is shown after 50 operating hours for the first time in the multifunction display (A1 p1).

Central gateway control unit (CGW),	A2	Page 333
component description

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Functions

GF00.20>W>3012H	Life cycle consumption calculation, function	2.8.11

MODEL 963

Life cycle consumption of a maintenance item

1Life cycle consumption after

2Life cycle consumption according to driving time limit

3Life cycle consumption after travel distance limitation

LDV (%) Life cycle consumption

tTime

t1	Time «100% LDV according to
	load»
t2	Time «100% LDV according to
	driving time limit»
t3	Time «100% LDV according to
	distance limit»

W00.20>1040>05

INPUT DATA	Calculation of life cycle consumption	OUTPUT DATA
f Operating oil temperatures of	f Life cycle consumption based on the vehicle load for	f Life cycle consumption based
major assemblies	A. directly measured maintenance items (brake linings, air	on the load
f Brake lining thickness of front and	filter)	f Life cycle consumption based
rear axle	Calculation with linear or nonlinear calculation instruction	on the time limitation
f Air filter contamination	as a function of the wear variable.	f Life cycle consumption based
f Air drier condensation level	B. Accumulating maintenance items (operation oils)	on the travel distance
f Brake wear ratio	Calculation with empirical calculation instructions	limitation
f Operating time	dependent on:	f Life cycle consumption based
f Total time	> Correction factors for temperature, load, rotational	on operating
f Distance	speed, cold start increment

f Number of crankshaft revolutions	> Quality factors for oil, fuel, mechanical components
f Engine speed	f Time>based servicing scheme (e.g. lubrication of steering
f Moderate engine speed	knuckles)
f Average major assemblies	f Life cycle consumption based on the drive time limit
temperature	f Life cycle consumption based on the travel distance
f Average outside air temperature	limitation
f Diesel particulate filter soiling	f Life cycle consumption based on operating time
f Vehicle speed

Æ for forecasting

Forecasting uses the highest value.

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Functions

General information

The life cycle consumption calculation provides information on the degree to which the workshop equipment is worn out, and which one should be replaced or repaired during maintenance.

The life cycle consumption calculation determines 4 life cycle consumption values, which are calculated anew during each calculation cycle:

fLife cycle consumption based on vehicle load, based on calculation method for:

>directly measured maintenance items and

>accumulating maintenance items.

fLife cycle consumption based on the drive time limit,

fLife cycle consumption based on the travel distance limitation,

fLife cycle consumption based on operating time,

The workshop equipment is worn out if a life cycle consumption of 100% is reached.

An exception is the time>based servicing scheme, which has fixed maintenance intervals that are independent from loads and driving distance.

The life cycle consumption is the basis for forecasting.

i Very precise, earlier prognoses are possible in the event of regular operations in regard to loads and driving distance over a long period of time. If operations vary greatly, the prognosis variation is higher. The forecasts become increasingly more accurate as total vehicle operating time increases.

Once the four life cycle consumption values have been evaluated, the maintenance system (WS) provides the highest value as a forecasting life cycle parameter.

Central gateway control unit (CGW),	A2	Page 333
component description

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Functions

GF26.21>W>0002H	Transmission automation, function	2.8.11

TRANSMISSION 715 in MODEL 963 with CODE (G5G) Mercedes PowerShift 3

TRANSMISSION 715 in MODEL 964 with CODE (G5G) Mercedes PowerShift 3

					W26.21>1121>79
A1	Instrument cluster (ICUC) control unit	B18	Travel and speed sensor	LIN 3	Multifunction control lever>LIN on
A2	Central gateway control unit (CGW)	B501	Main shaft rpm sensor		the right
A3	Drive control (CPC) control unit	B502	Countershaft rpm sensor	LIN 7	Button group LIN
A4	Engine management control unit	B503	Clutch travel sensor	S23	Right multifunction control lever
	(MCM)	B504	Range group travel sensor	S110	Left multifunction steering wheel
A5	Transmission control (TCM) control	B505	Transmission oil temperature		button group
	unit		sensor	S111	Right multifunction steering wheel
A43	Modular switch panel (MSF) control	CAN 2	Interior CAN		button group
	unit	CAN 3	Frame CAN	Y900	Transmission positioner
		CAN 4	Drive train CAN

1General

With transmission automation there a convenience shifting system available over which gear selection as well as declutching and engaging of the clutch take place automatically. It contains a fully automated manual transmission, based on a constant>mesh transmission, with automated clutch operating system. The clutch operation takes place over a pneumatically actuated centrally located clutch operator.

Synchronization does not take place via a blocking synchronization as on a synchromesh transmission but is realized instead by braking or accelerating the countershaft in a controlled manner. As a result can be widened for the same dimensions of the transmission gears and thus higher torques and outputs transmitted. Passive safety is also increased due to reducing the

burden for the driver.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Optimum gear selection supports an economic and fuel>saving driving style. All the shift operations take place in the optimum rpm range, minimizing wear on the transmission and engine.

Faults during shifting are ruled out and it is no longer possible to over rev the engine. After switching on the ignition the automatic mode of transmission automation is always activated irrespective of which mode was last selected (manual or automatic). The option of activating a manual or automatic shift mode with the transmission mode button (M/A) (S23 s3) on the RH multifunction control lever (S23) has been retained. 12 forwards gears, 4 reverse gears and neutral can be engaged.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

2Changes compared with the previous transmission

generation

fThe transmission positioner (Y900) includes:

>all solenoid valves for controlling the clutch, gear, gate, split, countershaft brake and range group

>travel sensors for gear, gate and split

fa pressed down clutch operation due to the pneumatic central clutch release bearing

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3Transmission modes and driving functions

Transmission automation offers the following operating modes:

fAutomatic transmission mode with a driving specific shift program (automatic operation)

fManual transmission mode (manual operation)

fBack>up mode (backup drive mode) includes the additional function «Towing».

Further driving functions include:

fEco>roll mode, in certain driving situations for supporting a fuel>saving driving style through automatic shifting into the transmission neutral position when the accelerator is not actuated

fCrawl function, for automatic starting moving when releasing the service brake and freewheeling without actuating the accelerator pedal

fRocking mode, for rocking the vehicle out of an off>road

recess

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

4Components of the transmission automation

4.1Transmission (TCM) control unit (A5)

The transmission (TCM) control unit (A5) is the central control unit for the transmission and the clutch. It contains the software modules for controlling the transmission and clutch actors.

The following sensor signals are read in directly amongst others:

fCountershaft rpm sensor (B502)

fTransmission oil temperature sensor (B505)

fMain shaft rpm sensor (B501)

4.2Transmission positioner (Y900)

The transmission positioner (Y900) combines the following components into one unit:

fGear cylinder

fGear cylinder travel sensor (Y900 b2)

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

4.3Splitter group shift cylinder

The splitter group shift cylinder is integrated into the front part of the transmission housing.

4.4Range group module

The range group module combines the following components into a unit:

fRange group shift cylinder

fRange group travel sensor (B504)

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

fRetract gear cylinder solenoid valve (Y900 y9)

fExtend gear cylinder solenoid valve (Y900 y8)

fGate cylinder

fGate cylinder travel sensor (Y900 b3)

fRetract gate cylinder solenoid valve (Y900 y11)

fExtend gate cylinder solenoid valve (Y900 y10)

fRetract splitter group solenoid valve (Y900 y7)

fExtend splitter group solenoid valve (Y900 y6)

fSlowly close clutch solenoid valve (Y900 y1)

fSlowly open clutch solenoid valve (Y900 y2)

fQuickly close clutch solenoid valve (Y900 y3)

fQuickly open clutch solenoid valve (Y900 y4)

fRetract range group solenoid valve (Y900 y12)

fExtend range group solenoid valve (Y900 y13)

fCountershaft brake solenoid valve (Y900 y5)

fSplitter group travel sensor (Y900 b1)

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

4.5Pneumatic central clutch release bearing

The pneumatic central clutch release bearing directly actuates the mechanical clutch components, takes on disengaging the clutch and engaging the clutch and contains the clutch travel sensor (B503).

4.6Right multifunction control lever (S23)

The RH multifunction control lever (S23) transmits the shift

commands to the drive control (CPC) control unit (A3).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Functions

5The following components support during transmission automation

5.1Engine management (MCM) control unit (A4)

The engine management (MCM) control unit (A4) includes the software module for torque and rotational speed actuation of the engine and therefore also implements requests from other control units on the rotational speed and torques for switching, starting off and stopping.

5.2Drive control (CPC) control unit (A3)

The drive control (CPC) control unit (A3) is modular in design and it contains the following software modules:

fSoftware module for drive control; it comes with extended functions (e.g. cruise control etc.)

fSoftware module for automatic gear selection

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

5.3Modular switch panel (MSF) control unit (A43)

The modular switch panel (MSF) control unit (A43) reads in the operation of the back>up mode via the left multifunction steering wheel button group (S110) or the right multifunction steering wheel button group (S111).

5.4Tachograph (TCO) (P1)

The tachograph (TCO) (P1) reads in the way and speed sensor (B18) and evaluates its signal.

5.5IC control unit (ICUC) (A1)

The IC (ICUC) control unit (A1) shows the driver information over

the multifunction display (A1 p1).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

6Transmission cooling (for code N6Z)

A thermostatically regulated transmission cooling with the following components is used as special equipment:

fTransmission cooler with a transmission cooling fan (M19) (located in the direction of travel on the right, next to the cooling module)

fTransmission oil lines

fThermostat element with spring from the shape memory alloy (FGL)

For transmission oil temperatures above 80∞C the spring force of the spring closes the cooler protection valve (bypass). The transmission oil flows through the transmission cooler and is cooled by the airstream.

If the transmission oil temperature increases further, the transmission cooling fan (M19) located on the transmission cooler is switched on from 90∞C over the SCA (SCA) control unit (A7).

For transmission oil temperatures below 80∞C the spring opens the cooler protection valve. The transmission oil flows uncooled over the bypass back into the transmission.

i In the case of an excessively high transmission oil pressure the cooler and the transmission protection valve open and allow the oil to flow uncooled over a bypass back into the transmission.

	Overall network for transmission		Page 40
	automation

	Operation, function		Page 41

	Driver information, function		Page 44

	Transmission mode, function		Page 45

	Shifting the transmission, function		Page 46

	Controlling the clutch, function		Page 52

	Countershaft brake, function		Page 54

i Electronic systems, Actros, model 963 > 09/2011 >

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Functions

GF26.21>W>0002>01H Overall network for transmission automation

					W26.00>1032>79
A1	Instrument cluster (ICUC) control	A10c	Electronic brake system (EBS)	S23	Right multifunction control lever
	unit		control unit	S110	Left multifunction steering wheel
A2	Central gateway control unit (CGW)	A43	Modular switch panel (MSF)		button group
A3	Drive control (CPC) control unit		control unit	S111	Right multifunction steering wheel
A4	Engine management control unit	CAN 2	Interior CAN		button group
	(MCM)	CAN 3	Frame CAN	Z1	Cab instrument panel CAN bus star
A5	Transmission control (TCM) control	CAN 4	Drive train CAN		point
	unit	LIN 3	Multifunction control lever>LIN on	Z3	Frame CAN bus star point
A10b	Electronic brake system (EBS) control		the right	Z4	Drive CAN bus star point
	unit	LIN 7	Button group LIN
		P1	Tachograph (TCO)

– This printout will not be recorded by the update service. Status: 09 / 2011 –

Functions

GF26.21>W>3003H	Operation, function	2.8.11

TRANSMISSION 715 in MODEL 963 with CODE (G5G) Mercedes PowerShift 3

TRANSMISSION 715 in MODEL 964 with CODE (G5G) Mercedes PowerShift 3

A3 Drive control (CPC) control unit

A5 Transmission control (TCM) control unit

CAN 4 Drive train CAN

LIN 3 Multifunction control lever>LIN on the right

S23 Right multifunction control lever S23s1 Transmission position switch

(D/N/R)

S23s2 Gearshift paddle (+/>)

S23 s3 Transmission mode (M/A) button

W26.21>1119>06

Normal operation

The shift commands are recorded over in the integral controls in the RH multifunction control lever (S23):

fTransmission position (D/N/R) switch (S23 s1)

fGearshift paddle (+/>) (S23 s2)

fTransmission mode (M/A) button (S23 s3)

The drive control (CPC) control unit (A3) reads in the shift signals from the RH multifunction control lever (S23) via the RH multifunction control lever LIN (LIN 3), evaluates them and sends appropriate CAN messages to the transmission (TCM) control unit (A5) via the drive train CAN (CAN 4).

Twelve forwards gears, 4 reverse gears and neutral can be engaged.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Automatic operation

(the optimal gear (the required gear specification) is determined by the drive control (CPC) control unit (A3))

Gear selection is dependent on the following influencing variables:

fGround speed (only relevant for the start>off gear)

fAccelerator pedal position (specified torque)

fLoad condition of engine

fOperating point of the target gear

fStarting speed of the transmission

fOperation of the permanent brake

fLoad condition of the vehicle

fShift program

fLay of the land for the driving lane

Manual mode

Difference to automatic mode:

fThe shifting operations must be initiated by the driver, that is the driver determines the shift point and shift direction.

fThe kickdown function is not available.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

i Electronic systems, Actros, model 963 > 09/2011 >

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Functions

Operation of the driving functions

The driving functions assist the driver in daily driving to drive with a more fuel economy. They increase the ride comfort and support him in difficult situations.

Selectable driving functions are:

fEcoRoll mode, in certain driving situations for supporting a fuel>saving driving style through automatic shifting into the transmission neutral position «N» when the accelerator is not actuated

fRocking mode, for rocking the vehicle out of an off>road recess

fCrawl mode, for automatic starting moving when releasing the service brake and continued crawling without actuating

the accelerator pedal.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Function sequence

If the pre>conditions are fulfilled then the drive control (CPC) control unit (A3) requests the neutral position from the transmission (TCM) control unit (A5) via the drive train CAN (CAN 4). The transmission (TCM) control unit (A5) actuates the transmission positioner (Y900) to open the clutch. After successful opening of the clutch, read in over the clutch position sensor (B503), the transmission positioner (Y900) is actuated to engage neutral. After ending the switching the transmission (TCM) control unit (A5) transmits the engaged neutral to the drive control (CPC) control unit (A3) via the drive train CAN (CAN 4).

i Based on the reduced engine speed a somewhat lower steering assist can occur and therefore greater steering forces in certain driving situations, for example on slightly curved downslopes. The operation or road safety is not endangered by this.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Function sequence

The crawl function consists of 2 parts:

fIn gears 1 to 6, R1 and R2, self>actuated starting crawling by releasing the service brake (only for an active crawl function)

fIn gears 1 to 6, R1 and R2 further crawling (=freewheeling)

for a non>actuated accelerator pedal

The driving off dosing occurs for first driving off over the accelerator pedal. The system is taught in in the process to the torque prescribed by the driver. After the first «real» driving determination of the crawling torque depends on the determined vehicle mass and incline in the driving lane.

i If driving with a trailer is recognized over the trailer recognition the mass and incline dependent crawling torque is reset in the drive control (CPC) control unit (A3) and teaching in

occurs again during first driving off.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

EcoRoll mode

Preconditions

fEcoRoll function activated

fGround speed was > 35 km/h and is > 25 km/h (hysteresis)

fAccelerator not operated

fService brake or permanent brake not actuated

fDriver assistance systems not in control mode

fBrake assistant systems not in control mode

fPower take>off switched off

fVariable speed limiter maximum speed not exceeded

fCC speed tolerance not exceeded

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Crawl mode

The crawl function is always switched on after an engine start and is activated after first moving off.

The crawl function is deactivated under the following conditions:

fThe crawl function is switched off over the IC (ICUC) control unit (A1)

fThe transmission in neutral for longer than 2 s

fThe parking brake is tightened

fThe rocking mode is activated

fDriver assistance systems switch into control mode

fIdle speed > 700 rpm

fThreat of clutch overloading

fAn excessively high air drag and rolling resistance

fAn excessively high tire grip

i The crawl function is similar in its behavior to an automatic torque converter. Since the function is realized over the clutch the function is not wear>free and the vehicle in the slip range of the

clutch is not capable of permanently crawling.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Rocking mode Function sequence

Rocking mode is activated over the rocking mode button (S938). If rocking mode has been activated the transmission control changes from automatic into manual mode.

Accelerator pedal requests are implemented more directly and the clutch is opened more rapidly for a non>actuated accelerator pedal. The clutch is closed quickly again as soon as the accelerator pedal is actuated again. Through repeated actuation and release of the accelerator pedal can put the vehicle into a rocking mode condition and in this way can rock the vehicle free out if a hollow.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

– This printout will not be recorded by the update service. Status: 09 / 2011 –

Functions

Back>up mode

Back>up mode represents a last emergency function for engaging gears for a vehicle standstill. The operating commands for navigation are entered in the menu tree multifunction display (A1 p1) in the IC (ICUC) control unit (A1) over the LH multifunction steering wheel button group (S110) and the RH multifunction steering wheel button group (S111).

The modular switch panel (MSF) control unit (A43) reads in the switching commands from the LH multifunction steering wheel button group (S110) and the RH multifunction steering wheel button group (S111), evaluates them and transmits appropriate CAN messages via the interior CAN (CAN 2), the central gateway (CGW) control unit (A2) and the frame CAN (CAN 3) to the drive control (CPC) control unit (A3).

The drive control (CPC) control unit (A3) evaluates the switching request from the driver, determines the targeted gear to be switched and, for release, transmits appropriate CAN messages via the drive train CAN (CAN 4) to the transmission (TCM) control unit (A5).

The following switching positions can be selected in back>up mode:

fR (for reverse gear)

fN (for neutral)

fD1 (for 2nd gear)

fD2 (for 6th gear)

fTowing (for the towing mode)

The actuation of the clutch is controlled automatically as long as no malfunction is present. A malfunction would result in automatic clutch operation being disabled.

i If gear selection was not enabled, a shift to «neutral» is always enabled.

Instrument cluster control unit (ICUC),	A1	Page 331
component description

Component description for central	A2	Page 333
gateway control unit (CGW)

Component description for drive control	A3	Page 334
(CPC) control unit

Component description for transmission	A5	Page 337
control (TCM) control unit

Component description for modular switch	A43	Page 370
panel control unit (MSF)

Component description for right	S23	Page 463
multifunction control lever

Component description for multifunction	S110, S111	Page 469
steering wheel

i Electronic systems, Actros, model 963 > 09/2011 >

– This printout will not be recorded by the update service. Status: 09 / 2011 –

Functions

GF26.21>W>3005H	Driver information, function	2.8.11

TRANSMISSION 715 in MODEL 963 with CODE (G5G) Mercedes PowerShift 3

TRANSMISSION 715 in MODEL 964 with CODE (G5G) Mercedes PowerShift 3

A1 Instrument cluster (ICUC) control unit

A1 p1 Multifunction display

A3 Drive control (CPC) control unit

A5 Transmission control (TCM) control unit

B50 Center speaker CAN 3 Frame CAN CAN 4 Drive train CAN

W26.21>1118>76

Displaying shift status

The drive control (CPC) control unit (A3) transmits the information for indication of the switching condition to the IC (ICUC) control unit (A1) via the frame CAN (CAN 3).

To do this the transmission (TCM) control unit (A5) permanently transmits the CAN messages with information about the condition of the transmission (for example the engaged gear, the possible gear) to the drive control (CPC) control unit (A3) via the drive train CAN (CAN 4). Before execution of the shift operation the drive control (CPC) control unit (A3) transmits the targeted gear request (determined from the automatic gear selection or the gear selected by the driver) to the transmission (TCM) control unit (A5). The transmission (TCM) control unit (A5) transmits the confirmed targeted gear and the engaged current gear to the drive control

(CPC) control unit (A3) .

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Emit warning tones acoustically

The transmission (TCM) control unit (A5) transmits CAN messages with information concerning the condition of the transmission (for example on the switched gear, the possible gear, temperature of the transmission oil) to the drive control (CPC) control unit (A3) via the drive train CAN (CAN 4).

The IC (ICUC) control unit (A1) receives the CAN messages and generates the following displays in the multifunction display (A1 p1):

fdisplay of the direction of travel and / or the engaged gear

fdisplay of the gearshift recommendation or to engaged gear

fdisplay of the transmission mode

The previous display is retained during the shift operation. The current display only takes place when the shift operation is concluded.

i During the teach>in process appropriate CAN messages are transmitted with information for display of the active teach>in process. Also in back>up mode all CAN messages are transmitted, as in normal mode, via the drive control (CPC) control unit (A3) and the frame CAN (CAN 3) to the IC (ICUC) control unit (A1).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

The drive control (CPC) control unit (A3) decides over a warning emission to the driver. If a warning emission is necessary, the drive control (CPC) control unit (A3) transmits an appropriate CAN message with the information for output of warning tones to the IC (ICUC) control unit (A1) via the frame CAN (CAN 3).

The IC (ICUC) control unit (A1) receives the CAN messages from the drive control (CPC) control unit (A3) and generates acoustic messages whose output takes place over the center speaker (B50).

Component description for instrument	A1	Page 331
cluster control unit (ICUC)

Component description drive control (CPC)	A3	Page 334
control unit

Component description for transmission	A5	Page 337
control (TCM) control unit

– This printout will not be recorded by the update service. Status: 09 / 2011 –

Functions

GF26.21>W>3007H	Transmission mode, function	2.8.11

TRANSMISSION 715 in MODEL 963 with CODE (G5G) Mercedes PowerShift 3

TRANSMISSION 715 in MODEL 964 with CODE (G5G) Mercedes PowerShift 3

General information

One can select between a manual transmission mode (manual operation) or an automatic transmission mode (automatic operation). In automatic operation there is a standard switching program (A) and either the shift program (A power) or the shift program

(A economy) available depending on the vehicle and transmission design.

Automatic transmission mode

The transmission automation is fitted with a standard shift program:

fA, with kickdown, accelerator pedal curve standard, CC standard, maximum speed of 89.8 km/h, function EcoRoll which can be switched off

The driving specific shift programs have the following significant properties:

fA power, switchings take place at an about 100 rpm higher rotational speed in comparison with a standard shift program and dynamic clutch matching for driving off

fA economy, no kickdown possible, EcoRoll cannot be switched off, maximum speed of 85 km/h, accelerator pedal curve and max. engine torque lowered, CC Softcruise

i Selection of the automatic transmission mode takes place over the transmission mode button (M/A) (S23 s3) on the RH multifunction control lever (S23).

Manual transmission mode

In manual transmission mode the shift operations are initiated by the driver over it. This means that the driver determines the shift point and the switching direction. The kickdown function is not available.

Component description for right	S23	Page 463
multifunction control lever

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Functions

GF26.20>W>3007H	Shifting the transmission, function	2.8.11

TRANSMISSION 715 in MODEL 963 with CODE (G5G) Mercedes PowerShift 3

TRANSMISSION 715 in MODEL 964 with CODE (G5G) Mercedes PowerShift 3

					W26.21>1123>09
Schematic representation
1	Gate cylinder	A3	Drive control (CPC) control unit	B504	Range group travel sensor
2	Range group shift cylinder	A4	Engine management (MCM)	CAN 2	Interior CAN
3	Gear cylinder		control unit	CAN 3	Frame CAN
4	Splitter group shift cylinder	A5	Transmission control (TCM)	CAN 4	Drive train CAN
6	Countershaft brake		control unit	LIN 3	Multifunction control lever>LIN on
6.1	Mechanical vent valve	A43	Modular switch panel (MSF)		the right
7	Pneumatic central clutch release		control unit	LIN 7	Button group LIN
	bearing	B18	Travel and speed sensor	S23	Right multifunction control lever
		B501	Main shaft rpm sensor	S110	Left multifunction steering wheel
A1	Instrument cluster (ICUC) control	B502	Countershaft rpm sensor		button group
	unit	B503	Clutch travel sensor	S111	Right multifunction steering wheel
A2	Central gateway control unit (CGW)				button group

Y900 b1	Splitter group travel sensor	Y900 y4	Clutch quick opening solenoid	Y900 y9 ‘Retract’ gear cylinder solenoid
Y900 b2	Gear cylinder travel sensor		valve		valve
Y900 b3	Gate cylinder travel sensor	Y900 y5	Countershaft brake solenoid	Y900 y10	‘Extend’ gate cylinder solenoid
Y900 y1	Clutch slow closing solenoid valve		valve		valve
Y900 y2	Clutch slow opening solenoid valve	Y900 y6	‘Extend’ splitter group solenoid	Y900 y11	‘Retract’ gate cylinder solenoid
Y900 y3	Clutch quick closing solenoid valve		valve		valve
		Y900 y7	‘Retract’ splitter group solenoid	Y900 y12	‘Retract’ range group solenoid
			valve		valve
		Y900 y8	‘Extend’ gear cylinder solenoid	Y900 y13	‘Extend’ range group solenoid
			valve		valve

– This printout will not be recorded by the update service. Status: 09 / 2011 –

Functions

1General

The transmission control (TCM) control unit (A5) is, as the interface to the transmission, the central control electronics for shift operation of a gear and actuation of the clutch.

It controls the entire shift operation and in the process performs the following tasks:

fSwitching the switching groups of the transmission

fMeasuring and evaluating the shift status and operating condition of the transmission

fMeasuring and evaluating the shift status and operating condition of the clutch

fRegulation and positioning of the clutch

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3Shifting the transmission

Actuation of the components cylinder valve gear extend solenoid (Y900 y8), gear cylinder retract solenoid valve (Y900 y9), splitter group extend solenoid valve (Y900 y6), splitter group retract solenoid valve (Y900 y7), range group retract solenoid valve (Y900 y12), range group extend solenoid valve (Y900 y13), gate cylinder extend solenoid valve (Y900 y10), gate cylinder retract solenoid valve (Y900 y11) takes place over electrical shift signals from the transmission control (TCM) control unit (A5).

The sequence of actuation is carried out as per a specified sequence corresponding to the gear to be shifted. The solenoid valves control the admission and release of air into/out of the working spaces of the associated gate shift cylinder (1), range group shift cylinder (2), gear cylinder (3) and splitter group shift cylinder (4). In the process their piston rods assume a defined position and operate the associated shift mechanism for shifting

the splitter, range group, gear and gate.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3.3Shifting the splitter group

The splitter group is switched through actuation of the splitter group extend solenoid valve (Y900 y6) or splitter group retract solenoid valve (Y900 y7).

3.4Shifting the gate

The gate is switched through actuation of the gate cylinder retract solenoid valve (Y900 y11).

i There is a spring in the shift mechanism to reset the transmission shift rod. This ensures that there is the necessary return force present for a non> actuated gate cylinder retract solenoid valve (Y900 y11). The return force of the spring is also supported as required through actuation of the gate cylinder extended solenoid valve (Y900 y10).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

2CAN communication

The transmission control (TCM) control unit (A5) which is located above the overall network is in constant data exchange with other control units which provide switching relevant data.

It is in direct connection with the drive control (CPC) control unit (A3) and the engine management (MCM) control unit (A4) via the drive train CAN (CAN 4). Also requests from the transmission control (TCM) control unit (A5) to other control units (e.g. rotational speed requests to the engine) are transmitted via the drive train CAN (CAN 4).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3.1Controlling the clutch

Actuation of the components clutch slow close solenoid valve (Y900 y1), clutch slow open solenoid valve (Y900 y2), clutch rapid close solenoid valve (Y900 y3), clutch rapid open solenoid valve (Y900 y4) occurs over electrical shift signals from the transmission control (TCM) control unit (A5).

The solenoid valves control the aeration and ventilation of the pneumatic central clutch release bearing (7). The pneumatic central clutch release bearing (7) opens or closes the clutch or regulates the clutch at a particular position.

3.2Switch the range group

Condition: the neutral position of gear cylinder (3) was detected. The range group is switched through actuation of the range group retract solenoid valve (Y900 y12) or the range group extend solenoid valve (Y900 y13).

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

3.5Switch the gear

The gears are switched through actuation of the gate cylinder extend solenoid valve (Y900 y8) or the gate cylinder retract solenoid valve (Y900 y9). The shift operation starts from the neutral position.

i The rotational speed of the countershaft must be aligned with the rotational speed of the main shaft before switching the gear. This occurs for upshifting through actuation of the countershaft brake solenoid valve (Y900 y5) as well as for downshifting through raising the engine speed for a closed clutch.

3.6Shifting gears in towing mode

Towing mode is only possible in back>up mode and if the electrical and pneumatic components are functioning correctly. Towing mode comprises automatic shifting of the high>speed range

group and of the neutral position.

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

i Electronic systems, Actros, model 963 > 09/2011 >

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Источник

Руководство по эксплуатации, техническому обслуживанию и ремонту грузовых автомобилей Mercedes-Benz Actros 1996-2007 годов выпуска.

Автор: —
Издательство: Диез
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Страниц: 704
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Руководство по эксплуатации, техническому обслуживанию и ремонту грузовых автомобилей Mercedes-Benz Actros третьего поколения 2008-2011 годов выпуска.

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Издательство: Диез
Год издания: —
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Сборник руководств по диагностике, техническому обслуживанию и ремонту автомобиля Mercedes-Benz Actros первого поколения.

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Издательство: Mercedes-Benz
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Размер: 653,9 Mb

Руководство по ремонту автомобиля Mercedes-Benz Actros с 2003 года выпуска.

Автор: —
Издательство: Терция
Год издания: —
Страниц: 218
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Руководство по эксплуатации, техническому обслуживанию и ремонту автомобиля Mercedes-Benz Actros 1996-2003 годов выпуска в кузовах W950/W952/W953/W954.

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Издательство: Арго-Авто
Год издания: —
Страниц: 800
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Схемы электрооборудования грузового автомобиля Mercedes-Benz Actros.

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Издательство: Терция
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Руководство по эксплуатации, техническому обслуживанию и ремонту автомобиля Mercedes-Benz Actros 2003-2011 годов выпуска в кузовах W930/W932/W933/W934.

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Руководство по эксплуатации, техническому обслуживанию и ремонту грузовых автомобилей Mercedes-Benz Actros с 2012 года выпуска.

Автор: —
Издательство: Монолит
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Источник

Mercedes Actros manual PDF: owner’s, operators, service and maintenance manuals, error codes list, DTC, spare parts manuals & catalogues, wiring diagrams, schematics free download PDF

Mercedes Actros User Manual PDF

Manuals for repair, maintenance, and operation of trucks Mercedes Benz Actros (W930 / W932 / W933 / W934) 2003-2011 with diesel engines OM501 V6 12 liters; OM502 V8 16 HP

A heavy truck or tractor driver is driving for a long time. Therefore, the manufacturers of Mercedes-Benz Actros paid special attention to creating a comfortable interior atmosphere. The well-thought-out arrangement of control devices, cozy seats, berths, everything is designed for the convenience of drivers. In addition, German trucks Mercedes Actros are famous for the highest safety, impeccable reliability, and also efficiency. In order for this truck to please you as long as possible with the uninterrupted operation, you need to know and be able to take care of it. To do this, you must have the Mercedes-Benz Actros User Manual. A detailed description of the capabilities, technical characteristics, devices, and rules for the care and operation of the Mercedes-Benz Actros will help you properly care for your truck. It details the control panel, onboard computer, and instrument cluster.

Repair manuals for Mercedes-Benz Actros will acquaint you with methods for diagnosing breakdowns. He will tell you about ways to eliminate them on the way, as well as in garage conditions.

The recommended manuals detail the V6OM 501 12 liters 456 hp diesel engines; V8OM 502, 16 liters, rated at 503 hp. The Mercedes-Benz Actros manuals describe the removal/installation, detailed assembly/dismantling, adjustment, and tuning of these diesel engines. Manual transmission, automatic transmission, transmission, steering, onboard communication systems, heating, air conditioning, control systems, pneumatic lines, axles, driveshaft, exhaust, and brake systems are described in detail.

The system SPA-assistance when driving along a given lane, ABA-distance support, ABS-anti-lock, EBD-distributing brake force, etc., is thoroughly signed. The repair of the cab, its removal and installation, cab suspensions, suspension struts, cab support stabilizers, replacement of floor panels, and much more are signed to the smallest detail.

The electrical equipment of the Mercedes-Benz Actros is presented in detail, accompanied by detailed wiring diagrams, tips, and tricks. Harnesses and, connectors, tightening moments are painted to the smallest detail.

The Mercedes-Benz Actros repair manual describes in detail the operating fluids, lubricants, and necessary spare parts. In addition, preparing the vehicle for driving, starting the engine with an auxiliary battery, towing, etc., are exhaustively described. Mercedes Actros has the most reliable engine capable of winding a million kilometers with proper operation. If the engine of your truck failed earlier than this, then this indicates a ruthless attitude towards your breadwinner.

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Naturally, the Mercedes-Benz Actros requires regular maintenance. You will find the frequency, schedule, and scope of procedures in the Mercedes Actros manual PDF. The onboard computer of this smart car will tell you, for example, when the oil should be changed. And how to do this, what engine oil to use, you will read in the presented manual. From it you will learn how to change the engine filters or dryer cartridge, how to initialize the control unit or adjust the headlights, and much more. All repair and maintenance procedures are displayed clearly with drawings and photographs. Because of this, you simply cannot have problems with the repair and maintenance of Mercedes-Benz Actros.

The Owner’s User Manual is intended for owners and drivers of Mercedes Actros. In addition, it will help point by point to understand the rather complex electronic control and monitoring system. The need for this manual by representatives of service stations, services and car repair shops is beyond doubt.

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Title	File Size	Download Links
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