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Vehicle care247Wheels and tyresTyre condition, wheel condition
Drive over edges slowly and at right
angles if possible. Driving over sharp
edges can cause tyre and wheel
damage. Do not trap tyres on the kerb
when parking.
Regularly check the wheels for
damage. Seek the assistance of a
workshop in the event of damage or
unusual wear.
Winter tyres Winter tyres improve driving safety attemperatures below 7 °C and should
therefore be fitted on all wheels.
In accordance with country-specific
regulations, affix the speed sticker in
the driver's field of view.Tyre designations
E.g. 215/60 R 16 95 H215=Tyre width, mm60=Cross-section ratio (tyre
height to tyre width), %R=Belt type: RadialRF=Type: RunFlat16=Wheel diameter, inches95=Load index e.g. 95 is
equivalent to 690 kgH=Speed code letter
Speed code letter:
Q=up to 160 km/hS=up to 180 km/hT=up to 190 km/hH=up to 210 km/hV=up to 240 km/hW=up to 270 km/h
Tyre pressure
Check the pressure of cold tyres at least every 14 days and before any
long journey. Do not forget the spare
wheel. This also applies to vehicles
with tyre pressure monitoring system.
Unscrew the valve cap.
Tyre pressure 3 285.
The tyre and loading information label on the front left or right door frame
indicates the original equipment tyres
and the correspondent tyre
pressures.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
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250Vehicle care
The use of commercially available
liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
Each time the tyres are replaced, tyre pressure monitoring system sensors
must be dismounted and serviced.
For the screwed sensor, replace
valve core and sealing ring. For
clipped sensor, replace complete
valve stem.
Vehicle loading status Adjust tyre pressure to load condition according to the tyre information labelor tyre pressure chart 3 285, and
select the appropriate setting in the
menu Tire Load in the Driver
Information Centre, Vehicle
Information Menu 3 117.
Select:
■ Light for comfort pressure up to
3 people
■ Eco for Eco pressure up to
3 people
■ Max for full loading
Auto learn function
After changing wheels, the vehicle
must be stationary for approx.
20 minutes, before the system
recalculates. The following relearn
process takes up to 10 minutes of
driving with a minimum speed of
20 km/h. In this case $ can be
displayed or pressure values can
swap in the Driver Information Centre.
If problems occur during the relearn
process, a warning message is
displayed in the Driver Information
Centre.
Temperature dependency Tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase.
The tyre pressure value displayed in
the Driver Information Centre shows
the actual tyre pressure. Therefore it
is important to check tyre pressure
with cold tyres.
Tread depth Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm (4 mm for winter tyres).
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258Vehicle care
The spare wheel has a steel rim.Caution
The use of a spare wheel that issmaller than the other wheels or in combination with winter tyres
could affect driveability. Have the defective tyre replaced as soon as
possible.
The spare wheel is located in a holder
beneath the vehicle floor.
1. Open the stowage in the load compartment 3 246.
2. Remove both caps above the hexagon bolts.
3. Fit the wheel wrench on onehexagon bolt and turn it anti-
clockwise until a resistance is
noticeable.
4. Proceed with the other hexagon bolt in the same way.5. Lift the spare wheel holder andunhook both catches.
6. Lower the spare wheel holder.
7. Detach the safety cable.
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296
Tow bar....................................... 218
Towing ................................ 218, 262
Towing another vehicle .............263
Towing equipment .....................219
Towing the vehicle .....................262
Traction Control system ............. 176
Traction Control system off......... 114
Traffic sign assistant ...................204
Trailer coupling ........................... 218
Trailer stability assist .................222
Trailer towing ............................. 219
Transmission ............................... 18
Transmission display .................169
Tread depth ............................... 250
Trip computer ............................ 127
Trip odometer ............................ 104
Turn and lane-change signals ...145
Turn signal ................................. 110
Tyre chains ................................ 252
Tyre designations ......................247
Tyre pressure ............................ 247
Tyre pressure monitoring system ............................. 115, 248
Tyre pressures ........................... 285
Tyre repair kit ............................. 252
U Ultrasonic parking assist ...113, 194
Underseat storage .......................68
Upholstery .................................. 266Upshift........................................ 113
Using this manual ..........................3
V Vehicle battery ........................... 228
Vehicle checks............................ 224
Vehicle data ................................ 273
Vehicle data recording and privacy ..................................... 289
Vehicle detected ahead ..............116
Vehicle dimensions .................... 283
Vehicle Identification Number ....271
Vehicle jack ................................ 246
Vehicle messages .....................123
Vehicle personalisation .............130
Vehicle security ............................ 27
Vehicle specific data ......................3
Vehicle storage ........................... 223
Vehicle tools ............................... 246
Vehicle unlocking ........................... 6 Vehicle weight ........................... 281
Ventilation ................................... 150
W
Warning chimes .........................126
Warning lights ............................. 104
Warning triangle .......................... 92
Washer and wiper systems .........16
Washer fluid ............................... 227
Wheel changing .........................255Wheel covers ............................. 251
Wheels and tyres .......................247
Windows ....................................... 32
Windscreen................................... 32 Windscreen wiper/washer ...........98
Winter tyres ............................... 247
Wiper blade replacement ..........230