256Wheels and tyres
Wear indicators
The original tyres on your vehicle have 1.6 mm high “tread wear indicators”
⇒ Fig. 176, running across the tread. Depending on the make, there will be
6 to 8 of them evenly spaced around the tyre. Markings on the tyre sidewall
(for instance the letters “TWI” or other symbols) indicate the positions of
the tread wear indicators. The minimum tread depth required by law is
1.6 mm (measured in the tread grooves next to the tread wear indicators).
Worn tyres must be replaced. Different figures may apply in export countries
⇒
.
Tyre pressure
Incorrect tyre pressure causes premature wear and could cause tyre blow-
out. For this reason, the tyre pressure should be checked at least once per
month ⇒ page 253.
Driving style
Fast cornering, heavy acceleration and hard braking all increase tyre wear.
Changing wheels around
If the front tyres are worn considerably more than the rear ones it is advisa-
ble to change them around as shown ⇒ Fig. 177. The useful life of all the
tyres will then be about the same time.
Wheel balance
The wheels on new vehicles are balanced. However, various factors encoun-
tered in normal driving can cause them to become unbalanced, which re-
sults in steering vibration.
Unbalanced wheels should be rebalanced, as they otherwise cause exces-
sive wear on steering, suspension and tyres. A wheel must also be reba-
lanced when a new tyre is fitted. Incorrect wheel alignment
Incorrect wheel alignment causes excessive tyre wear, impairing the safety
of the vehicle. If tyres show excessive wear, you should have the wheel
alignment checked by a Technical Service.
WARNING
There is a serious danger of accidents if a tyre bursts during driving!
● The tyres must be replaced at the latest when the tread wear indica-
tors are worn ⇒ page 256. Failure to do so could result in an accident.
Worn tyres do not grip well at high speeds on wet roads. There is also a
greater risk of aquaplaning.
● At continuously high speeds, a tyre with insufficient pressure flexes
more. This causes it to overheat. This can cause tread separation and tyre
blow-out. Risk of accident. Always observe the recommended tyre pres-
sures.
● If tyres show excessive wear, you should have the running gear
checked by a Technical Service.
● Keep chemicals such as oil, fuel and brake fluid away from tyres.
● Damaged wheels and tyres must be replaced immediately!
For the sake of the environment
Under-inflated tyres will increase fuel consumption.
EngineRunning in . . . . . . . . . . . . . . . . . . . . . . . . . 204
Engine compartment Working in the engine compartment . . . . 235
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . 242 G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . 242
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Specifications . . . . . . . . . . . . . . . . . . . . . . . 242
Engine fault Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 82
Engine management control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 82
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Checking engine oil level . . . . . . . . . . . . . . 240
Oil properties . . . . . . . . . . . . . . . . . . . . . . . 239
Specifications . . . . . . . . . . . . . . . . . . . . . . . 238
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . 241
Engine oil dipstick . . . . . . . . . . . . . . . . . . . . . . 240
Engine oil pressure control lamp . . . . . . . . . . . . . . . . . . . . . . 66, 86
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Environmental friendliness . . . . . . . . . . . . 208
Environmentally friendly driving . . . . . . . . . . . 206
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . 229
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . 88, 172, 198 see also Electronic Stability Control . . . . . 172
Example of menu use Program a speed limit warning . . . . . . . . . . 69
To activate and deactivate the speed limitwarning . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Example of the use of the menus
Open the Configuration menu with the MFIlever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Open the Configuration menu with the steering wheel controls . . . . . . . . . . . . . . 69
Examples of menu use Open the main menu . . . . . . . . . . . . . . . . . . 68
Open the winter tyres menu . . . . . . . . . . . . 69
To close the winter tyres menu . . . . . . . . . . 69
Exhaust gas purification system . . . . . . . . . . . 205
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . . . 217
F
Fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Fire extinguisher . . . . . . . . . . . . . . . . . . . . . . . . 154
First-aid kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Flexible service interval display . . . . . . . . . . . . 62
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Fog lights with cornering function . . . . . . . . . 120
Folding table . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Folding the seat backrests down . . . . . . . . . . 140
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Description . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 37
Front drinks holders . . . . . . . . . . . . . . . . . . . . . 146
Front interior light type 1 Switching light off . . . . . . . . . . . . . . . . . . . 123
Switching light on . . . . . . . . . . . . . . . . . . . 123 Front interior light type 2
Switching light off . . . . . . . . . . . . . . . . . . . 124
Switching light on . . . . . . . . . . . . . . . . . . . 124
Front passenger airbag deactivation . . . . . . . . 44
Front reading lights . . . . . . . . . . . . . . . . . . . . . 125
Front seat adjustment Lumbar support . . . . . . . . . . . . . . . . . . . . . 137
Fuel Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
fuel consumption . . . . . . . . . . . . . . . . . . . . . . . 206
Fuel consumption . . . . . . . . . . . . . . . . . . . . . . . 294
Fuel level Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Fuel reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Warning message . . . . . . . . . . . . . . . . . . . . . 67
Fuel tank see Fuel reserve . . . . . . . . . . . . . . . . . . . . . . 80
Fuel Tank Opening the fuel tank flap . . . . . . . . . . . . . 228
Fuel: save . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272 Fuse box . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Identifying blown fuses . . . . . . . . . . . . . . . 274
Identifying by colours . . . . . . . . . . . . . . . . 273
Preparation before replacing . . . . . . . . . . . 274
Replacement . . . . . . . . . . . . . . . . . . . . . . . . 274
G
Gear shift pattern . . . . . . . . . . . . . . . . . . . . . . . 182
General overview of the engine compartment 297
312 Index
