2003 MERCEDES-BENZ C230 COUPE power steering

268 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
<
FRT. PASSENGER SEAT
LOOK!
The display reminds you and your passen-
ger to fasten the seat belt.

Fasten the seat belts.
DRIVER’S SEAT BELT
FASTEN SEAT BELT!
The display reminds you to fasten the seat
belt.

Fasten the seat belts.
_
STEERING WHEEL ADJUST
LOCK!
The steering column is not properly locked.

Lock the steering column properly
(page 38).
POWER STEERING FLUID
VISIT WORKSHOP!
The power steering gear oil level is too low.
There is a danger of steering gear damage.

Have the system checked by an au-
thorized Mercedes-Benz Center.
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at your authorized Mercedes-Benz
Center as soon as possible.

300 Practical hintsTowing the vehicle
To be certain to avoid a possibility of
damage to the transmission, however,
we recommend the drive shaft be dis-
connected at the rear axle drive flange
for any towing beyond a short tow to a
nearby garage.
Warning!
G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:

the engine will not run


there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make certain that the key is in
starter switch position2.
If the key is left in starter switch position0
for an extended period of time, it can no
longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
key from starter switch and reinsert.
iTo signal turns while being towed with
the hazard warning flasher in use, turn
key in starter switch to position2 and
activate the combination switch for the
left or right turn signal in the usual
manner – only the selected turn signal
will operate.
Upon canceling the turn signal, the haz-
ard warning flasher will operate again.

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

317 Technical data
Fuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.
CapacitiesVehicle components and their respective
lubricants must match. Therefore use only
brands tested and recommended by us. Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
C 230 Kompressor
C320
5.8 US qt (5.5 l)
7.9 US qt (7.5 l)
Recommended engine oils
Automatic transmission
8.5 US qt (8.0 l)
MB Automatic Transmission Oil
1
1MB part no. 001 989 21 03 10Manual transmission
1.3 US qt (1.2 l)
MB Manual Transmission Oil
2
2MB part no. 001 989 26 03 10Rear axle
1.2 US qt (1.1 l)
Hypoid gear oil SAE 85 W 90
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approx. 2.1 oz (60 g) each
High temperature roller bearing grease
Brake system
0.5 US qt (0.5 l)
MB Brake Fluid (DOT 4+)
Cooling system
C 230 Kompressor
C320
approx. 8.5 US qt (8.0 l)
approx. 10.5 US qt (10.0 l)
MB 325.0 Anticorrosion/Antifreeze Agent

341 Index
Gear selector lever
Cleaning 243
Position 135
Global
Locking 83
Unlocking 83
Global Positioning System (GPS) 329
Glove box 21, 195
Closing 195
Opening 195
Good visibility 138
GPS 329
GPS see COMAND* 207
H
Halogen-type
Front lamp bulbs 282
Hand-held transmitter
Programming integrated remote
control 210
Hands-free microphone 26
Hard plastic trim items
Cleaning 244
Hazard warning flasher 99
Switching off 99
Switching on 99Head restraints 90
Manual seats 33
Power seats* 35
Rear seats 36
Headlamp cleaning system 232
Headlamps
Automatic control 97
Bi-Xenon 327
Bi-Xenon type*
Replacing bulbs 283
Cleaning 242
Cleaning system 140, 232
Halogen-type
Replacing bulbs 282
Refilling washer fluid 232
Switching off 52
Switching on 47
Washer fluid 324
Washer system 324
Headliner
Cleaning 244
Heated seats 91
Height adjustment
Head restraints 33, 35, 37
Seat belts 43
Steering wheel 37High beam flasher 48, 99
High beam headlamps
Messages in display 265
Replacing bulbs 280, 282
Switching on 99
High beam headlamps xenon type
Replacing bulbs 283
High mounted brake lamp 281
Hood 226
Closing 227
Message in display 263
Opening 226
Hydroplaning see Aquaplaning 219
I
Identification labels 308
Certification label 308
Vehicle Identification Number (VIN)
308
Ignition 31
Switching on 45
Immobilizer 78
Activating 78
Deactivating 78
Infant and child restraint systems 65
Installing 69
LATCH child seat mounts 70

345 Index
Doors 260
Engine 250
Engine oil level 262
ESP 260
Fuel reserve tank 263
Hood 263
Key 263
Lamps 264–267
Parking brake 267
Power steering fluid 268
Steering wheel adjust 268
Tailgate 269
Tele Aid 269
Telephone* 269
Washer fluid 270
Multifunction steering wheel 24, 106, 329
Buttons 106
N
Navigation system
Operating 112
See separate COMAND* operating in-
structions
Night security illumination 98
Setting 120O
Occupant safety 56
Airbags 57
Children and airbags 58
Children in the vehicle 65
Fastening the seat belt 41
Infant and child restraint systems 65
LATCH child seat mounts 70
Seat belts 41, 60
Odometer, main 23
Oil
Adding 228
Checking level 227
Consumption 227
Dipstick 227
Filler neck 228
Viscosity 328
Oil level
Checking 225
One-touch gearshifting 133
Canceling gear range limit 133
Downshifting 133
Upshifting 133
Opening
Ashtray 198
Doors from the inside 85Fuel filler flap 224
Fuel filler flap manually 277
Glove box 195
Hood 226
Side windows 183
Sliding/pop-up roof 186, 278
Sliding/pop-up roof in an emergency
278
Sliding/pop-up roof with SmartKey
187
Sunshades for the sliding/pop-up roof
185
Trunk lid 85
Windows 182
Windows with SmartKey 183
Operating
Audio system 159
Cassette player 112
CD player 111
COMAND* see separate operating
instructions
Garage door opener 212
Integrated remote control 212
Navigation system 112
Radio 111
Radio transmitters 222

346 Index
Telephone 159
Telephone* 126, 176
Operating safety
Audio system 159
Operator’s Manual 10
Ornamental moldings 242
Outside temperature indicator 104
Overdue service 238
Overhead control panel 26
Overspeed range 329
P
Paintwork 241
Panic alarm 72
Panic button on SmartKey 72
Parcel net
In front passenger footwell 198
Parking 51, 217
Parking brake 46, 51
Engaging 51
Message in display 267
Releasing 46
Parking lamps
Replacing bulbs 280, 281, 283, 284
Switching on 96
Parking position
Exterior rear view mirrors 95, 124Parts see Spare parts service 306
Passenger compartment 221
Fuse box in 303
Inside rear view mirror 39
Interior lighting 100
Parcel net in front passenger footwell
198
Passenger safety see Occupant safety 56
Pedals 215
Phone book*
Loading 128
Quick search 128
Phone number*
Dialing 128
Redialing 129
Plastic and rubber parts
Cleaning 244
Playing
CDs 173
Poly-V-belt drive 330
Layout 309
Positions (Memory function*)
Recalling from memory 94
Storing into memory 94
Power assistance 216Power seat*
Adjusting backrest tilt 35
Adjusting head restraint height 35
Adjusting head restraint tilt 35
Adjusting seat cushion tilt 35
Adjusting seat height 35
Front seat head restraints 90
Seat fore and aft adjustment 34
Power steering fluid
Message in display 268
Power train 330
Power washer 241
Power windows 182
Side windows 182
Practical hints
First aid kit 271
Fuses 303
Lamp in center console 251
Lamps in instrument cluster 246
Messages in the display 252
Spare wheel 271
Spare wheel bolts 273
Towing the vehicle 299
Vehicle jack 272
Vehicle tool kit 272
Premium unleaded gasoline 320

353 Index
Turn signal lamps
Replacing bulbs 280, 281
Turn signals 47
Additional in mirrors 280
Cleaning lenses 242
Front bulbs 280, 282, 284
Indicator lamps 23
Rear bulbs 281, 286
Turning off
Engine 52
U
Units
Setting speedometer units 117
Setting temperature units 117
Unlocking 30, 82
Driver’s door in an emergency 274
Fuel filler flap 224
Global 83
In an emergency 274
Selective settings 83
Transmission selector lever
manually 277
Trunk lid in an emergency 275
Vehicle in an emergency 208
With the SmartKey 30Upgrade signals
Tele Aid* 207
Uphill driving
Cruise control 190
Upshifting 133
Useful features 195
Ashtrays 198
Cigarette lighter 199
Garage door opener 209
Interior storage spaces 195
Tele Aid* 201
Telephone* 200
V
Vehicle
Individual settings 114, 115
Locking 25
Locking in an emergency 275
Lowering 291
Service battery 294
Towing 299
Unlocking 25
Unlocking in an emergency 274
Vehicle battery 294
Vehicle care 240
Cup holder 243
Engine cleaning 242Gear selector lever 243
Hard plastic trim items 244
Headlamps 242
Instrument cluster 243
Leather upholstery 244
Light alloy wheels 243
MB Tex upholstery 244
Ornamental moldings 242
Paintwork 241
Plastic and rubber parts 244
Power washer 241
Seat belts 244
Steering wheel 243
Tail lamps 242
Tar stains 241
Turn signals 242
Vehicle washing 242
Window cleaning 243
Wiper blades 243
Vehicle Identification Number (VIN) 308
Vehicle jack 272
Vehicle lighting
Checking 225