
192Vehicle careWheels and tyres
Tyre 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 at
temperatures 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. 195/65 R 15 91 H195=Tyre width, mm65=Cross-section ratio (tyre height
to tyre width), %R=Belt type: RadialRF=Type: RunFlat15=Wheel diameter, inches91=Load index e.g. 91 is
equivalent to 615 kgH=Speed code letter
Speed code letter:
Q=up to 100 mphS=up to 112 mphT=up to 118 mphH=up to 130 mphV=up to 150 mphW=up to 168 mph
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 3 232 and refer to the
label on the front passenger door.
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.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and fuel economy and will increase tyre
wear.

196Vehicle care
5. Press the SET/CLR button to
begin the sensor matching process. A message requesting
acceptance of the process should
display.
6. Press the SET/CLR button again
to confirm the selection. The horn sounds twice to signal the
receiver is in relearn mode.
7. Start with the left side front tyre.
8. Place the relearn tool against the tyre sidewall, near the valve stem.Then press the button to activate
the TPMS sensor. A horn chirp
confirms that the sensor
identification code has been
matched to this tyre and wheel
position.
9. Proceed to the right side front tyre,
and repeat the procedure in
Step 8.
10. Proceed to the right side rear tyre,
and repeat the procedure in
Step 8.
11. Proceed to the left side rear tyre, and repeat the procedure inStep 8. The horn sounds twice toindicate the sensor identification
code has been matched to the left side rear tyre, and the TPMS
sensor matching process is no
longer active.
12. Turn off the ignition.
13. Set all four tyres to the recommended air pressure level
as indicated on the tyre pressure
label.
14. Ensure the tyre loading status is set according selected pressure
3 99.
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).
For safety reasons it is recommended
that the tread depth of the tyres on
one axle should not vary by more than 2 mm.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear

Vehicle care207
Front arm position of the lifting
platform at the underbody.
Spare wheel Some vehicles are equipped with a
tyre repair kit instead of a spare
wheel.
If mounting a spare wheel, which is
different from the other wheels, this
wheel might be classified as a
temporary spare wheel and the
corresponding speed limits apply,
even though no label indicates this.
Seek the assistance of a workshop to
check the applicable speed limit.
The spare wheel has a steel rim.
The use of a spare wheel that is
smaller 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 the load
compartment beneath the floor
covering. It is secured with a wing nut.
The spare wheel well is not designed for all permissible tyre sizes. If a
wheel wider than the spare wheel has
to be stowed in the load
compartment, it must be secured with a strap or, depending on the version,
with an extension bar.
Storing a replaced wheel in the
load compartment using a strap
Use the strap placed in the tool box.
Vehicle tools 3 190.
■ Position the wheel on the load compartment floor close to one
sidewall of the load compartment.
■ Place the loop end of the strap through the front lashing eye of the
according side.
■ Place the hook end of the strap through the loop and pull it until thestrap is fastened securely to the
lashing eye.

214Vehicle care
Windows and windscreen wiperblades
Use a soft lint-free cloth or chamois leather together with window cleanerand insect remover.
When cleaning the rear window from
inside, always wipe in parallel to the
heating element to prevent damage.
For mechanical removal of ice, use a
sharp-edged ice scraper. Press the
scraper firmly against the glass so
that no dirt can get under it and
scratch the glass.
Clean smearing wiper blades with a
soft cloth and window cleaner.
Moonroof
Never clean with solvents or abrasive agents, fuels, aggressive media (e.g.
paint cleaner, acetone-containing
solutions etc.), acidic or highly
alkaline media or abrasive pads. Do
not apply wax or polishing agents to
the middle part of the moonroof.
Wheels and tyres Do not use high-pressure jet
cleaners.Clean rims with a pH-neutral wheel
cleaner.
Rims are painted and can be treated
with the same agents as the body.
Paintwork damageRectify minor paintwork damage witha touch-up pen before rust forms.
Have more extensive damage or rust
areas repaired by a workshop.
Underbody
Some areas of the vehicle underbody
have a PVC undercoating while other critical areas have a durable
protective wax coating.
After the underbody is washed, check
the underbody and have it waxed if
necessary.
Bitumen/rubber materials could
damage the PVC coating. Have
underbody work carried out by a
workshop.
Before and after winter, wash the
underbody and have the protective
wax coating checked.Liquid gas system9 Danger
Liquid gas is heavier than air and
can collect in sink points.
Take care when performing work
at the underbody in a pit.
For painting work and when using a
drying booth at a temperature above
60 °C, the liquid gas tank must be
removed.
Do not make any modifications to the
liquid gas system.
Towing equipment Do not clean the coupling ball bar with
a steam-jet or high-pressure jet
cleaner.
Rear carrier system Clean the rear carrier system with a
steam-jet or high-pressure jet cleaner
at least once a year.
Operate the rear carrier system
periodically if not in regular use, in
particular during winter.

242
Three-point seat belt .................... 45
Tools .......................................... 190
Top-tether fastening eyes ............60
Tow bar....................................... 162
Towing ................................ 162, 211
Towing another vehicle .............212
Towing a trailer ........................... 162
Towing equipment .....................163
Towing the vehicle .....................211
Traction Control system ............. 148
Traction Control system off .......... 96
Trailer coupling ........................... 162
Trailer towing ............................. 162
Transmission ............................... 16
Transmission display .................141
Tread depth ............................... 196
Trip computer ............................ 108
Trip odometer .............................. 89
Tunnel detection .........................116
Turn and lane-change signals ...119
Turn signal ................................... 93
Tyre chains ................................ 197
Tyre designations ......................192
Tyre pressure ............................ 192
Tyre pressure monitoring system ............................... 96, 193
Tyre pressures ........................... 232
Tyre repair kit ............................. 198
Tyres and wheel size, changing. 197U
Ultrasonic parking assist ...... 96, 151
Underseat storage .......................63
Upholstery .................................. 215
Upshift .......................................... 96
Using this manual ..........................3
V Variable effort steering .................96
Vehicle battery ........................... 172
Vehicle battery, jump starting .....209
Vehicle checks............................ 168
Vehicle data ................................ 221
Vehicle data recording and privacy ..................................... 236
Vehicle dimensions .................... 230
Vehicle Identification Number ....219
Vehicle jack ................................ 190
Vehicle messages .....................104
Vehicle personalisation .............111
Vehicle security ............................ 26
Vehicle specific data ......................3
Vehicle storage ........................... 167
Vehicle tools ............................... 190
Vehicle unlocking ........................... 6 Vehicle weight ........................... 229
Ventilation ................................... 124W
Warning chimes .........................107
Warning lights ............................... 88
Warning triangle .......................... 78
Washer and wiper systems .........14
Washer fluid ............................... 171
Welcome lighting ........................122
Wheel changing .........................203
Wheel covers ............................. 197
Wheels and tyres .......................192
Windows ....................................... 30
Windscreen................................... 30 Windscreen wiper/washer ...........83
Winter tyres ............................... 192
Wiper blade replacement ..........174