234Checking and refilling levels
Opening the bonnet
Fig. 179 Release catch
under the bonnet
Before opening the bonnet make sure that the windscreen wiper
arms are not lifted away from the glass. Otherwise the paint may
be damaged.
– Lift the bonnet slightly ⇒
.
– Press the release catch under the bonnet upwards ⇒ Fig. 179.
This will release the arrester hook under the bonnet.
– Open the bonnet.
The bonnet is held in position by a gas-filled strut.
WARNING
Never open the bonnet if you see steam or drips of coolant being re-
leased from the engine compartment. Failure to comply could result in
burns. Wait until no steam or coolant can be seen before opening the
bonnet.
Work in the engine compartment
Extra caution is necessary when working on components in
the engine compartment.
Always be aware of the danger of injury and scalding as well as the risk of
accident or even fire when working in the engine compartment (e.g. when
checking and refilling fluids). Always observe the warnings listed below
and follow all general safety precautions. The engine compartment of the
vehicle is a potentially hazardous area ⇒
WARNING
● Switch the engine off.
● Remove the ignition key.
● Apply the handbrake firmly.
● If your vehicle is equipped with a manual gearbox, place the gear lev-
er in neutral. If you are driving an automatic vehicle, place the selector
lever in position P.
● Wait for the engine to cool down.
● Children should not be allowed to approach the engine compartment.
● Never spill liquids used for vehicle operation on the engine compart-
ment, as these may catch fire (e.g. coolant).
● Take care not to cause short circuits in the electrical system, especial-
ly when working on the battery.
● Never touch the radiator fan while the engine is hot, as the fan could
start up suddenly.
● Never open the expansion tank when the engine is hot. The cooling
system is under pressure.
● Protect face, hands and arms from any hot steam or hot coolant fluid
released by covering the cap with a large, thick rag when opening the ex-
pansion tank.
EmergenciesChanging a wheel . . . . . . . . . . . . . . . . . . . 262
Disconnecting the battery . . . . . . . . . . . . . 246
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . 259, 264
Sunroof emergency activation . . . . . . . . . . 116
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259
Tyre mobility system . . . . . . . . . . . . . . . . . . 260
Engine Running in . . . . . . . . . . . . . . . . . . . . . . . . . 201
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Engine compartment Safety instructions . . . . . . . . . . . . . . . . . . . 234
Engine coolant G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . 238
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Specifications . . . . . . . . . . . . . . . . . . . . . . . 238
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235 Checking oil level . . . . . . . . . . . . . . . . . . . . 237
Checking the level . . . . . . . . . . . . . . . . . . . . 83
Consumption . . . . . . . . . . . . . . . . . . . . . . . 237
Engine oil pressure too low . . . . . . . . . . . . . 81
Oil properties . . . . . . . . . . . . . . . . . . . . . . . 236
Oil sensor defective . . . . . . . . . . . . . . . . . . . 83
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . 238
Engine speed governing . . . . . . . . . . . . . . . . . . 83
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 Environmental friendliness . . . . . . . . . . . . 205
Roof racks . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Environmentally friendly driving . . . . . . . . . . . 203
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . 231 ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
see also Electronic Stability Control . . . . . 172
Exhaust gas purification system . . . . . . . . . . . 202
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 219
F
Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 36
Front drink holder . . . . . . . . . . . . . . . . . . . . . . . 153
Front passenger airbag deactivation . . . . . . . . 45
Fuel Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Fuel level low . . . . . . . . . . . . . . . . . . . . . . . . 83
Instantaneous fuel consumption . . . . . . . . 88
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Fuel consumption . . . . . . . . . . . . . . . . . . . 203, 301
Fuel tank opening the fuel tank flap . . . . . . . . . . . . . 230
Fuel: save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Fuse Assignment . . . . . . . . . . . . . . . . . . . . . . . . . 271
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 270 G
Gear display . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Gear shift pattern . . . . . . . . . . . . . . . . . . . . . . . 186
General overview of the engine compartment 304
Glove compartment . . . . . . . . . . . . . . . . . . . . . 159 Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
H Handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179 Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 72
Hazard warning lights . . . . . . . . . . . . . . . . . . . 123
Headlight range control . . . . . . . . . . . . . . . . . . 121 Dynamic . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Headlights Adaptive headlights . . . . . . . . . . . . . . . . . . 123
Automatic headlight control . . . . . . . . . . . 118
Automatic headlight control photosensors . .118
Driving abroad . . . . . . . . . . . . . . . . . . . . . . 205
Front fog lights . . . . . . . . . . . . . . . . . . . . . . 119
Headlight range control . . . . . . . . . . . . . . . 121
Headlight washer system . . . . . . . . . . . . . 132
Head restraint Rear seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Head restraints Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 141
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Removing and fitting . . . . . . . . . . . . . . . . . 141
Heated Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Heated rear window . . . . . . . . . . . . . . . . . . . . . 128
316 Index