Wheels and tyres
238Wheel bolts
Wheel bolts must be tightened to the correct torque.The design of wheel bolts is matched to the rims. If different wheel rims are
fitted, the correct wheel bolts with the right length and correctly shaped bolt
heads must be used. This ensures that wheels are fitted securely and that the
brake system functions correctly.
In certain circumstances, you may not use wheel bolts from a different car -
even if it is the same model ⇒page 206.
After the wheels have been changed, the tightening torque of the wheel bolts
s ho uld b e che cke d as s o on as p ossible wit h a to rqu e w re nch. ⇒ The tight-
ening torque for steel and alloy wheels is 120 Nm.
WARNING
If the wheel bolts are not tightened correctly, the wheel could become
loose while driving. Risk of accident.•The wheel bolts must be clean and turn easily. Never apply grease or oil
to them.•Use only wheel bolts which belong to the wheel.•If the torque of the wheel bolts is too low, they could loosen whilst the
vehicle is in motion. Risk of accident! If the tightening torque is too high,
the wheel bolts and threads can be damaged.Caution
The prescribed torque for wheel bolts for steel and alloy wheels is 120 Nm.
Winter tyres
Winter tyres will improve the vehicles handling on snow and
ice.In winter conditions winter tyres will considerably improve the vehicles
handling. The design of summer tyres (width, rubber compound, tread
pattern) gives less grip on ice and snow.
Winter tyres must be inflated to a pressure 0.2 bar higher than the pressures
specified for summer tyres (see sticker on tank flap).
Winter tyres must be fitted on all four wheels.
Information on permitted winter tyre sizes can be found in the vehicle's regis-
tration documents. Use only radial winter tyres. All tyre sizes listed in the
vehicle documentation also apply to winter tyres.
Winter tyres lose their effectiveness when the tread is worn down to a depth
of 4 mm.
The speed rating code ⇒ page 237, “New tyres and wheels” determines the
following speed limits for winter tyres: ⇒
Q max. 160 km/h
S max. 180 km/h
T max. 190 km/h
H max. 210 km/h
In some countries, vehicles which can exceed the speed rating of the fitted
tyre must have an appropriate sticker in the driver's field of view. These
stickers are available from your Authorised Service Centre. The legal require-
ments of each country must be followed.
Do not have winter tyres fitted for unnecessarily long periods. Vehicles with
summer tyres handle better when the roads are free of snow and ice.
If you have a flat tyre, please refer to the notes on the spare wheel
⇒ page 237, “New tyres and wheels”.
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Index
296Engine compartment
Working in the engine compartment . . . . . 215
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . 222
Engine fault Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 78
Engine management Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 78
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Checking level . . . . . . . . . . . . . . . . . . . . . . . 219
Oil properties . . . . . . . . . . . . . . . . . . . . . . . . 219
Specifications . . . . . . . . . . . . . . . . . . . . . . . 218
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Engine oil dipstick . . . . . . . . . . . . . . . . . . . . . . . 219
Engine oil pressure monitor indicator . . . . . . . . . . . . . . . . . . . . . . 64
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 82
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Environmental friendliness . . . . . . . . . . . . 191
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . . 209
Environmentally friendly driving . . . . . . . . . . . 190
ESP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83, 183
Example of menu use Program a speed limit warning . . . . . . . . . . 67
To activate and deactivate the speed limit warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Example of the use of the menus
Open the Configuration menu with the MFD lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Open the Configuration menu with the steering wheel controls . . . . . . . . . . . . . . . . . . . . . . 67
Examples of menu use Open the main menu . . . . . . . . . . . . . . . . . . 66
Open the winter tyres menu . . . . . . . . . . . . . 67
To close the winter tyres menu . . . . . . . . . . 67
Exhaust gas purification system . . . . . . . . . . . 189
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 200
FFabric trim cleaning . . . . . . . . . . . . . . . . . . . . . 204
Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fire extinguisher . . . . . . . . . . . . . . . . . . . . . . . . 139
First-aid kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Fog lights with cornering function . . . . . . . . . . 116
Foot brake Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 84
Four wheel drive . . . . . . . . . . . . . . . . . . . . . . . . 185
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Front drinks holders . . . . . . . . . . . . . . . . . . . . . 136
Front interior light Switching off . . . . . . . . . . . . . . . . . . . . . . . . 119
Switching on . . . . . . . . . . . . . . . . . . . . . . . . 119
Front passenger airbag deactivation . . . . . . . . . 42 Front reading lights . . . . . . . . . . . . . . . . . . . . . . 120
Front seat adjustment
Lumbar support . . . . . . . . . . . . . . . . . . . . . . 132
Frontal airbags Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Fuel Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Fuel level Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Fuel reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 warning message . . . . . . . . . . . . . . . . . . . . . 65
Fuel Tank Opening the fuel tank flap . . . . . . . . . . . . . 208
Fuel tank See Fuel reserve . . . . . . . . . . . . . . . . . . . . . . 77
Fuel: save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
GG 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Gear shift pattern . . . . . . . . . . . . . . . . . . . . . . . 165
General overview of the engine compartment 273
Glove compartment . . . . . . . . . . . . . . . . . . . . . 135
Glow plug system . . . . . . . . . . . . . . . . . . . . . . . 159 Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 78
GRA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
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