2004 MERCEDES-BENZ C CLASS COUPE belt

319
Technical data
Spare parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive Engine
Rims and Tires
Electrical system
Main Dimensions Weights
Fuels, coolants, lubricants, etc.
Consumer information

323
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

324 Technical dataEngine
EngineModel
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
(141 kW / 5800 rpm)
215 hp / 5700 rpm
(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

342 Technical termsCollapsible tireAn especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.
COMAND* (C
ockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as other optional
equipment (CD changer, telephone,
etc.).
Control system The 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.
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 (F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service is
due.
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.

344 Technical termsPower trainCollective 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 Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Program mode selector switch Used to switch the automatic transmis-
sion between standard operation S and
winter operation C.
Remote Vehicle Diagnostics Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
Restraint systems Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dant systems, their protective func-
tions complement one another. RON
(R
esearch 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.
Shift lock When the vehicle is parked, this lock
prevents the gear selector lever from
being moved out of position P without
SmartKey turned and brake pedal de-
pressed.

345
Technical terms
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Tele Aid* System (T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available. Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Tire speed rating Part of tire designation; indicates the
speed range for which a tire is ap-
proved.
Traction Force exerted by the vehicle on the
road via the tires. VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Voice control system* Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).

351
Index
Checking
Coolant level 235, 241
Oil level 235, 237
Tire inflate pressure 235
Vehicle lighting 235
Child safety 65 Airbags 58
Infant and child restraint systems 62, 65
LATCH child seat mounts 70
Child seat mounts see LATCH child seat mounts 70
Cigarette lighter 204
Cleaning Cup holder 255
Gear selector lever 255
Hard plastic trim items 255
Headlamps 148
Headliner and shelf below rear window 255
Instrument cluster 255
Leather upholstery 256
Light alloy wheels 254 MB Tex upholstery 256
Plastic and rubber parts 256
Seat belts 255
Steering wheel 255
Upholstery 256
Windows 254
Windshield 50
Wiper blades 254
Wood trims 256
Climate control 150 Adjusting 153
Defogging windshield 153
Defrosting 154
Rear window defroster 149
Setting the temperature 153
Clock 23, 122
Closing Glove box 200
Hood 237
power window with SmartKey 188 Roller sunblind for the
sliding/pop-up roof 189
Side windows 187
Sliding/pop-up roof 190, 292
Trunk lid 86
Windows 186
Windows with SmartKey 188
Closing sliding/pop-up roof In an emergency 292
Cockpit 20, 341
Cockpit management and data system (COMAND*) 342
Collapsible tire 342
COMAND* 342
COMAND* see separate operating instruc- tions
Combination switch 102 High beam flasher 102
Turn signals 48
Windshield wipers 49
Consumer information 339
Control and operation of radio transmitters 230
Control system 109, 342

355
Index
Messages in display 238, 276
Viscosity 342
Engine oil level see Oil level 235
ESP 23, 75, 342 Messages in display 266
Switching off 76
Switching on 77
Synchronizing 266
Warning lamp 261
ETD 342 Safety guidelines 60
ETD (Emergency tensioning device) 64
Ethanol fuel At the gas station 233
Switching fuels 334
Exterior lamp switch 98
Exterior lamps Delayed shut-off 127
Exterior rear view mirror Activating parking position 147 Exterior rear view mirrors
Adjusting 40
Parking position for 132
F
Fahrenheit Setting temperature units 123
Fastening the seat belts 41
Fine adjustment Cruise control 196
First aid kit 284
Flat tire 301 Inflating the spare tire 304
Lowering the vehicle 306
Mounting the spare wheel 301
Preparing the vehicle 301
Spare wheel 285
Flexible fuel vehicles 334 At the gas station 233
Switching fuels 334
Flexible Service System (FSS) 249, 342 Fog lamp, front 101
Fog lamp, rear 101, 294
Fog lamps
Replacing bulbs 293
Fog lamps, front Messages in display 278
Replacing bulbs 294
Front airbags 61
Front fog lamp Switching on 101
Front lamps Bi-Xenon type 296
Halogen-type 295
Messages in display 277, 279
Replacing bulbs 293, 295
Switching on 98
Front seat backrest Folding backrest back 37
Folding backrest forward 36