Wheels and Tyres
238
Wheels and TyresWheelsGeneral information•
New tyres do not offer optimal grip at first and should therefore be run in for
about 500 km at a moderate speed and an appropriately cautious style of driving. You will also profit from longer tyre life.•
The tread depth of new tyres may differ because of design features and the
configuration of the tread (d
epending on the type of tyre and the manufacturer).
•
Drive over curbs on the side of the road
and other such obstacles slowly and,
where possible, at a right angle in order
to avoid damage to tyres and wheel trims.
•
Inspect your tyres from time to time
for damage (punctures, cuts, splits and
bulges). Remove foreign bodi
es from the tyre profile.
•
Damage to tyres and wheels is frequent
ly not visible. Unus
ual vibrations or
pulling of the vehicle to one side
could be a sign of tyre damage.
Please reduce
your speed immediately and stop if
you suspect that a wheel is damaged.
Inspect the tyres for signs of damage (bulges,
splits, etc.). If no
visible damage is
present, please drive at an appropriately slow speed and carefully to the nearest specialist garage in order to have your vehicle inspected.•
Also protect your tyres from cont
act with oil, grease and fuel.
•
Immediately replace any dust caps of
the valves which have got lost.
•
Mark wheels before removing them so th
at their previous direction of running
can be maintained when
mounted them again.
•
Always store wheels or tyres which been removed in a cool, dry and, where
possible, dark place. Tyres which are not
fixed to a wheel trim should be stored
upright. Unidirectional tyres* The direction of rotation of the tyres is marked by arrows on the wall of the tyre. This indicates the direction of rotation of the tyre, and it is essential that the tyres are fitted on to run in this direction. Only then are the tyres able to provide the optimal properties in terms of grip, low no
ise, wear-and-tear and aquaplaning.
Further information concerning th
e use of unidirectional tyres
⇒page 242.
WARNING
•
New tyres during the first 500 km do not offer optimal grip and should
therefore be run appropriately - risk of accident!•
Never drive with damaged tyres - risk of accident!Note
Please observe the various differing legal requirements regarding tyres.Tyre lifeThe life of your tyres very much depends on the following points: Tyre pressure The working life of tyres will be shortened co
nsiderably if the tyres are insufficiently
or over-inflated and this will have an advers
e effect on the handling of your vehicle.
Correctly inflated tyres are of partic
ular importance when travelling at
high speeds
.
It is therefore good to check the pressure
at least once a month and also before
Fig. 218 An opened fuel filler flap with a tyre size and tyre inflation pressure table
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Wheels and Tyres
239
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
setting off on a long trip. Please do not
forget the spare wheel when checking the
tyres. The tyre inflation pressures for
summer tyres
are indicated on the inside of the fuel
filler flap
⇒page 238, fig. 218
. The inflation pressures for
winter tyres
are 20 kPa
(0.2 bar) higher than those for summer tyres
⇒page 242.
The tyre pressure should be at the highest pressure specified for your vehicle at all times. The tyre inflation pressure of the emergency spare wheel R 18 is 420 kPa (4.2 bar).Always check the inflation pressure of ty
res when cold. Do not reduce the higher
pressure of warm tyres. Adapt the inflation pressure of the tyres accordingly if your vehicle is carrying a significantly higher payload. Driving style Fast cornering, sharp acceleration and braking (squealing tyres) increase wear-and- tear on your tyres. Balancing wheels The wheels of a new vehicle are balanced. There are a wide range of influences when driving which may result in an im
balance and which makes themselves felt
through vibration in the steering. You should have the wheels rebalanced since any imbalance increases wear-and- tear on the steering, the suspension and tyres. A wheel must also be rebalanced when a new tyre is fitted and each time a tyre is repaired. Wheel alignment errors Incorrect wheel alignment at the front and rear will not only increase wear-and-tear on the tyres but will also has an adverse effect on vehicle safety. Contact your specialist garage if you no
tice any unusual tyre wear.
WARNING
•
If the inflation pressure is too low,
the tyre must perform a greater flexing
work. At higher speeds the tyre will warm up as a result of this. This can result in tread separation and even a tyre blowout.•
Immediately replace the damaged rims or tyres.
•
Tyres which are 6 years old or more should only be fitted in exceptional
cases and when adopting an appropriately cautious style of driving.
For the sake of the environment
Tyres which are insufficiently inflated increase your fuel consumption.Wear indicatorsThe base of the tread of the original tyres has wear indicators 1.6 mm high, installed at right angles to the direction of travel. These wear indicators are located at 6 - 8 points depending on the make and are evenly spaced around the circumference of the tyre
⇒fig. 219
. Markings on the walls of the tyres through the letters “TWI”,
triangular symbols or other symbols identi
fy the position of the wear indicators.
A remaining tread of just 1.6 mm, measured in the grooves of the tread next to the wear indicators, means that your tyres have reached their legally permissible minimum tread depth.
WARNING (continued)
Fig. 219 Tyre tread with wear indicators
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Breakdown assistance
247
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
repair can be undertaken on
the vehicle immediately.
Please read the attached
instructions carefully before the repair. The tyre repair kit is located in a textile ba
g. There is a velcro fastener on the under-
side of the bag, with which the bag is atta
ched to the floor covering of the luggage
compartment in such a way that the side of the bag rests on the right side of the luggage compartment and on the seat backrest.Spare wheel*The spare wheel lies in a well under the floor covering of the luggage compartment and is fixed in place using special screws
⇒fig. 224
.
Before removing the spare wheel, you must take out the box with the vehicle tool kit box
⇒page 246, fig. 223
.
One should check the inflation pressure in the spare wheel (at best when generally checking the tyre air pressures - see sign on the fuel filler flap
⇒page 238) to
ensure that the spare wheel is always ready to use. Temporary spare wheel A warning label displayed on the rim of the temporary spare wheel indicates that your vehicle is equipped with a temporary spare wheel. Please observe the following notes when driving with a temporary spare wheel:
•
After fitting on the wheel, the warning st
icker must not be concealed (e.g. by the
wheel trim).•
D o n o t d r i v e w i t h th i s s p a re w h e e l a t m o re th a n 8 0 k m / h - ri s k o f a c c i d e n t. Av o i d
accelerating at full throttle, sharp braking and fast cornering.•
The inflation pressure for this spare wheel is identical to the inflation pressure
of the standard tyres. The temporary spar
e wheel R 18 must have an inflation pres-
sure of 420 kPa (4.2 bar)!•
Use this spare wheel only to reach the nearest specialist garage as it is not
intended for continuous use.•
No other summer or winter tyres must
be mounted on the rim of the spare
wheel R 18.Changing a wheelPreliminary workThe following steps should be carried out before actually changing the wheel. – If it is necessary to change a wheel, park the vehicle as far away as
possible from the traffic flow. The place you choose should be
level
.
–Have
all the occupants get out.
While changing a wheel, the occu-
pants of the vehicle should not stan
d on the road (e.g. behind a crash
barrier).
– Apply the
handbrake
firmly.
–Engage
1st gear
or if your vehicle is fitted with an automatic gearbox,
position the
selector lever into position P
.
– If a trailer is coupled, uncouple it.– Take the
vehicle tool kit
⇒
page 246 and the
spare wheel*
⇒
page 247 out of the luggage compartment.
Fig. 224 Luggage compart- ment: Spare wheel
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Index 300Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Towing device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
towing vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Tow-starting and towing vehicle
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . 138
Traction Control System . . . . . . . . . . . . . . . . . . . . . . 195
Traction control system (TCS)
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
General Maintenance . . . . . . . . . . . . . . . . . . . . 208
Transporting children . . . . . . . . . . . . . . . . . . . . . . . . 184
Tread depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Two-way radio systems . . . . . . . . . . . . . . . . . . . . . . 142
Tyre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Tyre inflation pressure
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Tyres
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242UUnderbody protection . . . . . . . . . . . . . . . . . . . . . . . 215
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Uphill-Start off-Assist . . . . . . . . . . . . . . . . . . . . . . . . 198VVanity mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246Ventilation
Auxiliary ventilation . . . . . . . . . . . . . . . . . . . . . . 119
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
WWarning lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Warning symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Warning triangle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Washing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
with a high-pressure cleaner . . . . . . . . . . . . . . 212
Washing the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 211
Washing vehicle by hand . . . . . . . . . . . . . . . . . . . . 212
Wax treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Wheel
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Spare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Wheel trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238, 249
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Windows
de-icing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Windscreen washer nozzles . . . . . . . . . . . . . . . . . . . . 69
Windshield washer fluid reservoir . . . . . . . . . . . . 236
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Windshield washer system . . . . . . . . . . . . . . . . . . . 236
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Windshield wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Wiper blades
Replacing the wiper blades . . . . . . . . . . . . . . . . . 71
XXenon headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
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