2005 MERCEDES-BENZ C CLASS COUPE belt

417
Technical data
Layout of poly-V-belt drive
 Layout of poly-V-belt drive
C230Kompressor
1 Power steering pump
2 Idler pulley
3 Supercharger
4 Automatic belt tensioner
5 Air conditioning compressor
6 Crankshaft
7 Coolant pump
8 Generator (alternator)
C320
1 Automatic belt tensioner
2 Power steering pump
3 Air conditioning compressor
4 Crankshaft
5 Coolant pump
6 Generator (alternator)
7 Idler pulley

418 Technical dataEngineModel
C 230 Kompressor (203.740)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all sp ecial bodies and special equipment.
C 320 (203.764)
1
Engine
271
112
Mode of operation
4-stroke engine, gasoline injection
4-stroke engine, gasoline injection
No. of cylinders
4
6
Bore
3.23 in (82.00 mm)
3.54 in (89.90 mm)
Stroke
3.35 in (85.00 mm)
3.3 in (84.00 mm)
Total piston displacement
109.6 cu in (1796 cm
3)
195.2 cu in (3199 cm
3)
Compression ratio
8.5:1
10:1
Output acc. to SAE J 1349
189 hp / 5800 rpm
2
(141 kW / 5800 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
215hp/5700rpm
2
(160 kW / 5700 rpm)
Maximum torque acc. to SAE J 1349
192 lb-ft / 3500 rpm
(260 Nm / 3500 rpm)
229 lb-ft / 3000 rpm
(310 Nm / 3000 rpm)
Maximum engine speed
6000 rpm
6000 rpm
Firing order
1-3-4-2
1-4-3-6-2-5
Poly-V-belt
2420 mm
2380 mm

438 Technical termsControl systemThe control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.
Curb weight (
page 323)
DOT (Department o
f Transportation)
(
page 323)
Engine number The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced. Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP (E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD (E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRS FSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates
engine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.
GAWR (G
ross A
xle W
eight R
ating)
(
page 323)
Gear range Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector le-
ver.

440 Technical termsMultifunction displayDisplay field in the instrument cluster
used to present information provided
by the control system.
Multifunction steering wheel Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight (
page 324)
OCS (Occupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
Overspeed range Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty. Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
Production options weight (
page 324)
Program mode selector switch Used to switch the automatic transmis-
sion between standard operation S and
winter operation C. PSI
(P
ounds per s
quare i
nch)
(
page 325)
Recommended tire inflation pressure (page 325)
Restraint systems Seat belts, child restraints, lower an-
chors and tethers for children (LATCH).
As independent systems, their protec-
tive functions complement one
another.
Rim (page 325)
RON (Research O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.

447
Index
Checking
Brake fluid 290
Coolant level 290, 296, 359
Headlamp cleaning fluid 290
Oil level 290, 292
Tire inflate pressure 290
Vehicle lighting 290
Windshield washer fluid 290
Child safety 70 Air bags 62
Front passenger front air bag off indica-tor lamp 27, 76, 345
Infant and child restraint systems 66, 70
LATCH child seat anchors 78
OCS 73
Child seat anchors see LATCH child seat anchors
Cigarette lighter 259
Cleaning Cup holders 337
Gear selector lever 337
Hard plastic trim items 337
Headlamps 167
Headliner 337
Instrument cluster 337 Leather upholstery 338
Light alloy wheels 336
MB Tex upholstery 338
Plastic and rubber parts 338
Seat belts 337
Steering wheel 337
Upholstery 338
Windows 336
Windshield 54
Wiper blades 336
Wood trims 338
Cleaning tires 302
Climate control 172 Adjusting air distribution and volume 176
Defogging windshield 176
Defrosting 177
Rear window defroster 170
Setting the temperature 175
Clock 25, 139
Closing Ashtray, center console 258
Cup holder 257
Glove box 254
Hood 292
Luggage compartment 95 Panorama roof with power tilt/sliding
panel* in an emergency 381
Panorama roof with power tilt/sliding panel* with SmartKey 244
Storage compartment, armrest 255
Trunk lid 95
Windows 238
Windows with SmartKey 239
Cockpit 22, 437
Cockpit management and data system (COMAND*) 437
Cold tire inflation pressure 323
Collapsible tire 437
Collapsible wheel chock 375
COMAND* see separate operating instructions 437
Combination switch 114 Turn signals 52
Windshield wipers 53
Comfort driving Transmission program mode 164
Control and operation of radio transmitters 284

451
Index
Engine oil 292, 428
Adding 294
Additives 428
Checking level 292
Consumption 292
Display messages 363–364
Filler neck 295
Messages in display 293, 363–364
Viscosity 438
Engine oil level see Oil level
ESP 25, 83, 438 Messages in display 355–356
Switching off 84
Switching on 85
Warning lamp 343
ETD 438 Safety guidelines 64
ETD (Emergency tensioning device) 69
Ethanol fuel At the gas station 288
Switching fuels 431
Exterior lamp switch 110
Exterior lamps Delayed shut-off 146
Exterior rear view mirror
Parking position* for 150 Exterior rear view mirrors
Adjusting 42
F
Fahrenheit Setting temperature units 137
Fastening the seat belts 44
Fine adjustment Cruise control 249
First aid kit 373
Flat tire 394 Inflating the spare tire 398
Lowering the vehicle 400
Mounting the spare wheel 394
Preparing the vehicle 394
Spare wheel 375
Tighten wheel bolts 400
Flexible fuel vehicles 431 At the gas station 288
Switching fuels 431
Flexible Service System (Canada vehicles) 330, 438
Fog lamp, rear Message in display 368
Switching on 113 Fog lamps, front
Messages in display 366
Replacing bulbs 385, 386
Switching on 113
Front air bags 65
Front lamps Bi-Xenon* type 388
Halogen-type 386
Messages in display 366–370
Replacing bulbs 385, 386
Switching on 110
Front passenger front air bag off indicator lamp 27, 76, 345
Front seat backrest Folding backrest back 40
Folding backrest forward 39
Front seat head restraints Installing 102 Power seat* 103
Manual seat 102
Power seat* 103
Removing 102 Power seat* 103
Front seats Heating* 106

453
Index
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 324
GVWR 324
H
Halogen-type
Front lamp bulbs 386
Hands-free microphone* 29
Hard plastic trim items Cleaning 337
Hazard warning flasher 116 Switching off 116
Switching on 116
Head restraints Front seats 37, 102Manual seat 102
Power seat* 103
Manual seat 37, 102
Power seat* 38, 102
Rear seats 103
Headlamp cleaning fluid Checking 290
Headlamp cleaning system* Refilling 299 Headlamps
Automatic control 111
Bi-Xenon* 437
Bi-Xenon* typeReplacing bulbs 388
Cleaning system* 167
Halogen-type Replacing bulbs 386
Refilling washer fluid 299
Switching off 57
Switching on 51
Washer fluid* 435
Washer system* 435
Headliner Cleaning 337
Heated seats* 106
Height adjustment Head restraints 37, 38
Rear seat head restraints 103
Seat belts 46
High beam flasher 114
High beam headlamps Messages in display 367
Replacing bulbs 385, 387Bi-Xenon-type 389
Switching on 114 High mounted brake lamp 385
Hood 291
Closing 292
Message in display 365
Opening 291
Hydroplaning see Aquaplaning 281
I
Identification labels 416
Ignition 33 Switching on 48, 49
Immobilizer 86 Activating 86
Deactivating 86
Indicator lamps see Lamps, indicator and warning
Infant and child restraint systems 70 Installing 77
LATCH child seat anchors 78
Inflating Spare tire 398
Information Button for Tele Aid* 266
Installing Infant and child restraint systems 77
Towing eye bolt 409
Wiper blades 393

454 IndexInstrument cluster 24, 119, 439Cleaning 337
Coolant temperature display 120
Illumination 119
Lamps in 343–344
Multifunction display 123
Outside temperature indicator 121
Selecting language 138
Instrument lighting 119
Instruments and controls see Cockpit
Interior lighting 117 Activating automatic control 117
Deactivating automatic control 117
Delayed shut-off (Control system) 147
Manual operation 118
Interior rear view mirror Adjusting 42
Antiglare (manual) 167
Interior storage spaces Armrest 255
Cup holders 256
Intermittent wiping 54 J
Jack 373
Jump starting 404
K
Key dependency memory
Settings 149
Key positions in starter switch 33
Key, mechanical 377
Key, SmartKey Battery check lamp 92
Checking the batteries 93
Factory setting 92
Global locking 92
Global unlocking 92
Loss of 94
Messages in display 365
Positions in starter switch 33
Remote control 90
Restoring to factory setting 93
Selective setting 92
Starting the engine 48, 49
Unlocking with 32
Kickdown 165, 439
Kilometers/miles in speedometer 137
Kilopascal 324
Km/h or mph in speedometer 137 L
Labels, identification 416
Lamp bulbs, exterior 384
Lamps, exterior
Front 385
Light sensor 367
Messages in display 366–370
Rear 385
Lamps, indicator and warning ABS 340
Air bag Off 66
Battery (SmartKey) 92
Brake 25
Brakes 341
CHECK ENGINE 342
Engine diagnostics 342, 344
ESP 343
Fuel reserve 344
Instrument cluster 343–344
Low beam 25
Seat belts 344
Service indicator 330
SRS 61, 344
Language Multifunction display 138
Setting 138