2003 MERCEDES-BENZ C240 Power steering

276 Practical hintsWhat to do if …<
PASSENGER SEAT BELT
FASTEN SEAT BELT!
The display reminds you and your
passengers to fasten seat belts.

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

Lock steering column (
page 37).
POWER STEERING FLUID
VISIT WORKSHOP!
The steering gear oil level is too low.
There is a danger of steering gear
damage.

Have the system checked by an
authorized Mercedes-Benz Center.
Display
Possible cause
Suggested solution
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.

309 Practical hints
Towing the vehicle
!To be certain to avoid a possibility of
damage to the drive train, however, we
recommend the drive shaft be discon-
nected at the rear axle drive flange
(vehicles with 4MATIC*: disconnected
at the front and rear axle drive flanges)
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
supply or in the vehicle’s electrical
system
as that will be necessary to adequately
control 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
hazard warning flasher will operate
again.

319 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
C 230 Kompressor Sport
1Power steering pump
2Idler pulley
3Mechanical loader
4Automatic belt tensioner
5Air conditioning compressor
6Crankshaft
7Coolant pump
8Generator (alternator)
C240 / C320 (all models)
1Idler pulley
2Automatic belt tensioner
3Power steering pump
4Air conditioning compressor
5Crankshaft
6Coolant pump, fan
7Generator (alternator)
C32AMG
1Idler pulley
2Idler pulley
3Supercharger
4Automatic belt tensioner
5Power steering pump
6Air conditioning compressor
7Crankshaft
8Coolant pump, fan
9Generator (alternator)

330 Technical dataFuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Front axle
C2404MATIC
C3204MATIC
C3204MATICSport
0.5 US qt (0.46 l)
Hypoid gear oil SAE 85 W 90
Transfer case
C2404MATIC
C3204MATIC
C3204MATICSport
approx. 0.62 US qt (0.59 l)
MB Automatic Transmission Oil
1
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin CHF 11S)
Front wheel hubs
approx. 2.1oz (60g) 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 Sport
C240 (all models)
C320 (all models)
C32AMG
approx. 8.5 US qt (8.0 l)
approx. 6.8 US qt (6.4 l)
approx. 6.8 US qt (6.4 l)
approx. 15.3 US qt (14.5 l)
MB 325.0 Anticorrosion / antifreeze agent
Fuel tank
including a reserve of
16.4 US gal (62.0 l)
2.1 US gal (8.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON / 86 MON)Flexible Fuel Vehicle (MY 2003 Mercedes-Benz
C 320 models, except those equipped with
manual transmission or 4MATIC*):
Alternative fuel -- Ethanol fuel (E85)
1MB part no. 001 989 21 03 10

347 Index
A
ABS 23, 73, 341
ABS control 74
Malfunction indicator lamp 257
Messages in display 262
Warning lamp 257
Accelerator position, automatic
transmission 143
Accident
In case of 50
Activating
Air conditioning (cooling) 154, 163
Air recirculation mode 152, 160
Anti-theft alarm system 79
Automatic climate control* 157
Central locking (control system) 129
Charcoal filter 161
Climate control 149
Climate control system 153
Defrosting 151
Easy-entry/exit feature* 129
ESP 77
Exterior headlamps 47
Exterior lamps 102
Exterior rear view mirror
parking position* 145Hazard warning flasher 104
Headlamps 47
High beams 104
Ignition 31
Immobilizer 53, 79
Rear fog lamp 102
Rear window defroster 153, 162
Residual heat 163
Seat heater* 97
Tow-away alarm 80
Windshield wipers 48
Adding
Coolant 239
Engine oil 237
Additional turn signals 290
Adjustable air vents, rear passenger
compartment 155, 164
Adjusting 32
Air distribution 151, 159
Air volume 151, 159
Backrest tilt 33, 35
Exterior rear view mirror 39
Head restraint height 33, 35, 37
Head restraint tilt 34, 35, 36
Head restraints 36
Inside rear view mirror 39Instrument cluster illumination 107
Manual seat 33
Mirrors 39
Multicontour seat* 96
Power seat* 34
Rear seat head restraints 35
Seat belt height 43
Seat cushion depth 96
Seat cushion tilt 33, 35
Seat fore and aft adjustment 33, 34
Seat height 33, 35
Seats 32, 33
Steering column height 37, 38
Steering column length 37, 38
Steering wheel 37
Air conditioner (cooling)
Turning off 154, 163
Turning on 154, 163
Air conditioning refrigerant 332
Air distribution
Adjusting 151, 159
Air pressure
see Tire inflation pressure 243
Air recirculation mode 152, 160
Activating 152, 160
Deactivating 152, 161

365 Index
Into reverse
(manual transmission) 137
Side impact airbags 61
Side marker lamps
Replacing bulbs 290, 291, 294
Side windows
Automatic opening 188
Cleaning 251
Closing 187, 188
Closing with SmartKey 188
Opening 187, 188
Opening fully 188
Opening with SmartKey 188
Stopping 188
Synchronizing power windows 189
Signal strength (telephone*) 134
Simultaneous wiping and washing
Windshield wipers 49
Single wipe 49
Ski sack* 196
Removing 199
Unfolding and loading 196
Unloading and folding 198
Sliding/pop-up roof* 190
Closing 190, 289
Closing with SmartKey 191Opening 190, 289
Opening with SmartKey 191
Stopping 191
Synchronizing 192
SmartKey
Changing battery 286
Locking and unlocking 84
Opening and closing
the sliding/pop-up roof* with 191
Opening and closing
windows with 188
Unlocking with 30
Snow chains 246
Soft keys
Audio system 168
Spare fuses 313
Spare parts service 316
Spare wheel 281
Bolts 282
Minispare 300
Mounting 297
Removing 281
Speed
Saving current 194
Speed settings
Cruise control 195Speedometer 23
Settings units 123
Speedometer display mode
Selecting 123
Split rear bench seat* 199
SRS 63, 344
Indicator lamp 257
Standing lamps 101
Replacing bulbs 290, 291, 293, 294
Standing water
Driving instructions 229
Starter switch 21, 31
Positions 31
Starting difficulties 45
Starting position 31
Starting the engine 44
Station (radio)
Search 117
Station selection
Setting 128
Steel rims
Technical data 323
Steering column
Height adjustment 37, 38
Length adjustment 37, 38
Messages in display 276

366 IndexSteering gear oil
Message in display 276
Steering wheel
Adjusting 37
Buttons 24
Cleaning 252
Electrical adjustment* 38
Height adjustment 38
Manual adjustment 37
Stolen vehicle
Tracking services 217
Stopping
Sliding/pop-up roof* 191
Windows 188
Storage compartments
Armrest 205
Glove box 203
Ventilated compartments 155
Storage spaces
Cup holder 204
Storing (Memory function*)
Positions into memory 99
Submenus 115
Convenience 129
For settings 113
In control system 115Instrument cluster 122
Lighting 125
Resetting functions in
Control system 120
Selecting 120
Settings menu 120
Vehicle 128
Sun visors 146
Sunshade* 147
Supplemental Restraint System
(SRS) 344
Switching
Fuel (Flexible fuel vehicle) 334
Switching off
Audio system 168
Automatic central locking
(control system) 129
Delayed (exterior lamps) 126
Engine 53
ESP 76
Hazard warning flasher 104
Headlamps 52
Seat heating* 97Switching on
Audio system 168
Automatic central locking
(control system) 129
ESP 77
Front fog lamps 103
Hazard warning flasher 104
Headlamps 47
High beams 104
Rapid seat heating* 97
Rear fog lamp 103
Seat heating* 97
Windshield wipers 48
Symbols 15
Synchronizing
Power windows 189
Sliding/pop-up roof* 192
T
Tachometer 23, 109
Displaying gear range 140
Overspeed range 109
Tail lamps
Cleaning 251
Replacing bulbs 291, 295
Tar stains 250

369 Index
Service battery 303
Towing 308
Unlocking 25
Unlocking in an emergency 285
With flexible fuel 334
Vehicle battery 303
Vehicle care 249
Cup holder 252
Engine cleaning 250
Gear selector lever 252
Hard plastic trim items 252
Headlamps 251
Instrument cluster 252
Leather upholstery 253
Light alloy wheels 252
MB Tex upholstery 253
Ornamental moldings 251
Paintwork 250
Plastic and rubber parts 252
Power washer 250
Seat belts 252
Steering wheel 252
Tail lamps 251
Tar stains 250
Turn signals 251Vehicle washing 251
Window cleaning 251
Wiper blades 251
Vehicle identification number (VIN) 318
Vehicle jack 280
Vehicle lighting
Checking 234
Vehicle tool kit 279
Alignment bolt 279
Removing 279
Spare fuses 279
Special fuse puller 279
Towing eye bolt 279
Vehicle jack 279
Wheel bolts 279
Wheel wrench 279
Vehicle washing 251
Ventilated storage compartment 155
Ventilation
Storage compartment 155
VIN (Vehicle Identification
Number) 318, 345
Voice control system* 345
Hands-free microphone 27W
Warning lamps
see Lamps, indicator and warning
Warning sounds
Drivers seat belts 61
Parking brake 46
Warranty coverage 317
Washer fluid see Windshield washer fluid
Washing the vehicle 249
Wear pattern (tires) 244
Weights 328
Wheel change
Tightening torque 301
Wheels
Rotating 244
Tires and wheels 242
Window curtain airbags 61
Windows see Side windows
Windshield
Defogging 151, 159
Refilling washer fluid 241
Replacing wiper blades 296
Washer fluid 241, 338
Washer system 338