2003 MERCEDES-BENZ C320 COUPE power steering fluid

216 OperationDriving instructionsPower assistanceBrakesTo help prevent brake disk corrosion after
driving on wet road surfaces (particularly
salted roads), it is advisable to brake the
vehicle with considerable force prior to
parking. The heat generated serves to dry
the brakes.
If your brake system is normally only sub-
jected to moderate loads, you should occa-
sionally test the effectiveness of the
brakes by applying above-normal braking
pressure at higher speeds. This will also
enhance the grip of the brake pads. If the parking brake is released and the
brake warning lamp in the instrument clus-
ter stays on, the brake fluid level in the res-
ervoir is too low.
Brake pad wear or a leak in the system may
be the reason for low brake fluid in the res-
ervoir.
Have the brake system inspected at an au-
thorized Mercedes-Benz Center immedi-
ately.
All checks and service work on the brake
system should be carried out by an autho-
rized Mercedes-Benz Center.
Install only brake pads and brake fluid rec-
ommended by Mercedes-Benz.Warning!
G
When the engine is not running, the brake
and steering systems are without power as-
sistance. Under these circumstances, a
much greater effort is necessary to stop or
steer the vehicleWarning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating,
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
!Be very careful not to endanger other
road users when you apply the brakes.
Refer to the description of the Brake
Assist System (BAS) (
page 74).

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.

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