Vehicle care189Wheels 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. 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 deflation detection system or
tyre pressure monitoring system.
Unscrew the valve cap.
Tyre pressure 3 224 and on the label
at 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.
Vehicle care191
If the system is ready again, a
message is displayed in the Driver
Information Centre with
Uplevel-Display.
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
indicators (TWI). Their position is
indicated by markings on the
sidewall.
If there is more wear at the front than
the rear, swap round front wheels and rear wheels periodically. Ensure that
the direction of rotation of the wheels
remains the same.
Tyres age, even if they are not used.
We recommend tyre replacement
every 6 years.
Changing tyre and wheel
size If tyres of a different size than those
fitted at the factory are used, it may be necessary to reprogramme the
speedometer as well as the nominal
tyre pressure and make other vehicle
modifications.
After converting to a different tyre
size, have the label with tyre
pressures replaced.9 Warning
Use of unsuitable tyres or wheels
may lead to accidents and will
invalidate the vehicle type
approval.
Wheel covers
Wheel covers and tyres that are
factory approved for the respective
vehicle and comply with all of the
relevant wheel and tyre combination requirements must be used.
If the wheel covers and tyres used are
not factory approved, the tyres must
not have a rim protection ridge.
Wheel covers must not impair brake
cooling.
9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
198Vehicle care
Jacking position for liftingplatform
Rear arm position of the lifting
platform at the underbody.
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.
The spare wheel can be classified as
a temporary spare wheel depending
on the size compared to the other
mounted wheels and country
regulations.
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 needs to be secured with a strap or, depending on the
version, with an extension bar.
Vehicle care205
Thoroughly rinse and leather-off the
vehicle. Rinse leather frequently. Use
separate leathers for painted and
glass surfaces: remnants of wax on
the windows will impair vision.
Exterior lights Headlight and other light covers are
made of plastic. Do not use any
abrasive or caustic agents, do not use
an ice scraper, and do not clean them dry.
Polishing and waxing
Wax the vehicle regularly (at the
latest when water no longer beads).
Otherwise, the paintwork will dry out.
Polishing is necessary only if the paint
has become dull or if solid deposits
have become attached to it.
Paintwork polish with silicone forms a
protective film, making waxing
unnecessary.
Plastic body parts must not be treated with wax or polishing agents.Windows and windscreen wiper
blades
Use a soft lint-free cloth or chamois
leather together with window cleaner and 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 damage Rectify minor paintwork damage witha touch-up pen before rust forms.
Have more extensive damage or rust
areas repaired by a workshop.
UnderbodySome 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.
234
Top-tether fastening eyes ............60
Tow bar....................................... 159
Towing ................................ 159, 202
Towing another vehicle .............203
Towing a trailer ........................... 159
Towing equipment .....................160
Towing the vehicle .....................202
Traction Control system ............. 145
Traction Control system off .......... 96
Trailer coupling ........................... 159
Trailer towing ............................. 159
Transmission ............................... 16
Transmission display .................139
Tread depth ............................... 191
Trip computer ............................ 107
Trip odometer .............................. 89
Tunnel detection .........................114
Turn and lane-change signals ...117
Turn signal ................................... 93
Tyre chains ................................ 192
Tyre deflation detection system . 190
Tyre designations ......................189
Tyre pressure ............................ 189
Tyre pressures ........................... 224
Tyre repair kit ............................. 192
Tyres and wheel size, changing. 191
U Ultrasonic parking assist ...... 96, 148
Underseat storage .......................63Upholstery.................................. 206
Upshift .......................................... 96
Using this manual ..........................3
V Variable effort steering .................96
Vehicle battery ........................... 169
Vehicle battery, jump starting .....200
Vehicle checks............................ 165
Vehicle data ................................ 212
Vehicle data recording and privacy ..................................... 227
Vehicle dimensions .................... 221
Vehicle Identification Number ....210
Vehicle jack ................................ 188
Vehicle messages .....................103
Vehicle personalisation .............109
Vehicle security ............................ 26
Vehicle specific data ......................3
Vehicle storage ........................... 164
Vehicle tools ............................... 188
Vehicle unlocking ........................... 6
Vehicle weight ........................... 220
Ventilation ................................... 122
W
Warning chimes .........................106
Warning lights ............................... 88
Warning triangle .......................... 78
Washer and wiper systems .........14Washer fluid ............................... 168
Welcome lighting ........................120
Wheel changing .........................195
Wheel covers ............................. 191
Wheels and tyres .......................189
Windows ....................................... 30
Windscreen................................... 30
Windscreen wiper/washer ...........83
Winter tyres ............................... 189
Wiper blade replacement ..........171