check transmission fluid MERCEDES-BENZ C320 COUPE 2004 CL203 Owner's Manual

Contents
Opening and closing the roller sun-
blinds for the
panorama sliding/pop-up roof ..... 189
Opening and closing the
panorama sliding/pop-up roof ..... 190
Synchronizing the
panorama sliding / pop-up roof
and the roller sunblinds ............... 193
Driving systems ................................. 194
Cruise control .............................. 194
Loading.............................................. 197
Roof rack*.................................... 197
Luggage cover.............................. 197
Split rear bench seat .................... 197
Loading instructions..................... 199
Useful features .................................. 200
Interior storage spaces ................ 200
Ashtrays ....................................... 203
Cigarette lighter ........................... 204
Telephone* .................................. 205
Tele Aid* ...................................... 206
Garage door opener ..................... 214
Operation......................................... 221
The first 1000 miles (1500km) .......... 222Driving instructions ............................ 223
Drive sensibly – save fuel.............. 223
Drinking and driving ...................... 223
Pedals ........................................... 223
Power assistance .......................... 223
Brakes........................................... 224
Driving off ..................................... 225
Parking.......................................... 225
Tires .............................................. 226
Hydroplaning................................. 227
Tire traction .................................. 227
Tire speed rating ........................... 228
Winter driving instructions ............ 228
Standing water.............................. 229
Passenger compartment ............... 230
Driving abroad .............................. 230
Control and operation of
radio transmitter ........................... 230
Catalytic converter........................ 231
Emission control ........................... 231
Coolant temperature..................... 232
At the gas station ............................... 233
Refueling....................................... 233
Check regularly and
before a long trip .......................... 234
Engine compartment .......................... 236Hood ............................................. 236
Engine oil ...................................... 237
Transmission fluid level ................ 241
Coolant level ................................. 241
Battery .......................................... 242
Windshield washer system and
headlamp cleaning system ........... 243
Tires and wheels ................................ 244
Important guidelines ..................... 244
Life of tire ..................................... 245
Direction of rotation ..................... 245
Checking tire inflation pressure .... 245
Rotating wheels ............................ 246
Winter driving ..................................... 247
Winter tires ................................... 247
Block heater (Canada only) ........... 248
Snow chains ................................. 248
Maintenance ...................................... 249
Clearing the service indicator ....... 249
Service term exceeded ................. 249
Calling up the service indicator .... 250
Resetting the service indicator ..... 250
Vehicle care ....................................... 251
Cleaning and care of the vehicle ... 251

241 Operation
Engine compartment
Transmission fluid level
The transmission fluid level does not need
to be checked. If you notice transmission
fluid loss or gear shifting malfunctions,
have an authorized Mercedes-Benz Center
check the transmission.Coolant level
The engine coolant is a mixture of water
and anticorrosion/antifreeze. To check
the coolant level, the vehicle must be
parked on level ground and the engine
must be cool.
The coolant expansion tank is located on
the passenger side of the engine compart-
ment.
For more information on coolant, see
“Coolants” (
page 336).1Coolant expansion tank

Using a rag, turn the cap slowly approx-
imately one half turn to the left to re-
lease any excess pressure.

Continue turning the cap to the left and
remove it.
The coolant level is correct if the level

for cold coolant: reaches the black
top part of the reservoir


for warm coolant: is approx. 0.6 in
(1.5 cm) higher

Add coolant as required.

Replace and tighten cap.
Warning!
G
In order to avoid any possibly serious burns:

Use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system,
or if the coolant temperature display in-
dicates that the coolant is overheated.


Do not remove pressure cap on coolant
reservoir if engine temperature is above
194×F (90×C). Allow engine to cool
down before removing cap. The coolant
reservoir contains hot fluid and is under
pressure.


Using a rag, slowly open the cap approx-
imately ½ turn to relieve excess pres-
sure. If opened immediately, scalding
hot fluid and steam will be blown out un-
der pressure.


Do not spill antifreeze on hot engine
parts. Antifreeze contains ethylene gly-
col which may ignite and burn if it comes
into contact with hot engine parts.

349 Index
Automatic climate control
Deactivating 156
Automatic headlamp mode 99
Automatic lighting control
Activating 103
Deactivating 103
Automatic locking when driving 87
Automatic transmission 139
Accelerator position 145
Emergency operation
(Limp Home Mode) 145
Fluid level 241
Gear ranges 141
Gear selector lever position 142
Gear shifting malfunctions 145
Kickdown 145
Manual shifting 140
One-touch gearshifting 140
Program mode selector switch 144
Selector lever position 139Starting with 45
Transmission fluid 241
Winter program mode 144
Auxiliary fuse box 318
B
BabySmartTM
Airbag deactivation system 67, 341
Compatible child seats 67, 341
Self-test 68
Backrest
Folding forward 198
Folding rearward 198
BAS 74, 341
Messages in display 265
Batteries, SmartKey
Changing 290
Check lamp 83
Checking 84
Battery discharged
Jump starting 310Battery, vehicle 242, 307
Charging 308
Disconnecting 308
Messages in display 269
Reconnecting 308
Reinstalling 308
Removing 308
Bi-Xenon headlamps* 341
Bi-Xenon type
Front lamp bulbs 296
Block heater 248
Bolts
For spare wheel 287
Brake assist system (BAS) 341
Brake fluid 234, 332
Brake lamp bulbs 294
Brake lamp, high mounted 294
Brake pads
Message in display 270
Brakes 224

373 Index
Wood trims 256
Vehicle jack 286
Vehicle lighting
Checking 235
Vehicle tool kit 285
Alignment bolt 285
Spare fuses 285
Special fuse puller 285
Towing eye bolt 285
Vehicle jack 285
Wheel bolts 285
Wheel wrench 285
Vehicle washing 253
Ventilated storage compartment 157
Ventilation
Storage compartment 157
VIN (Vehicle Identification Number) 345
Voice control system* 345
Voice recognition system*
Hands-free microphone 27W
Warning sounds
Drivers seat belts 62
Parking brake 47
Warranty coverage 321
Washer fluid see Windshield washer fluid
Washing the vehicle 251
Wear pattern (tires) 246
Weights 329
Wheel change
Tightening torque 306
Wheels
Rotating 246
Tires and wheels 244
Window curtain airbags 61
Windows see Side windows
Windshield
Defogging 153
Refilling washer fluid 243
Replacing wiper blades 300Washer fluid 243, 338
Washer system 338
Windshield washer fluid 338
Message in display 283
Mixing ratio 338
Refilling 243
Wiping with 50
Windshield washer system 338
Windshield wipers 49
Fast wiper speed 49
Replacing wiper blades 300
Single wipe 50
Switching on 49
Wiping with
windshield washer fluid 50
Winter driving 247
Block heater 248
Snow chains 248
Tires 247
Transmission program mode 144
Winter driving instructions 228