Wheels and Tyres
236
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 235, fig. 210
. The inflation pressures for
winter tyres
are 20 kPa
(0.2 bar) higher than those for summer tyres
⇒page 239.
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 imbalance 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 re
ar 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 notice 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.
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. 211
. 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
•
You must have your tyres replaced with new ones at the latest when the
wear indicators have been worn do
wn. The legally permissible minimum
tread depth should be observed.•
Worn tyres do not provide the necessar
y adhesion to the road surface at
high speeds on wet roads. One coul
d experience “aquaplaning” (uncon-
trolled movements of the vehicle - “swimming” on a wet road surface).
Fig. 211 Tyre tread with wear indicators
s2dk.1.book Page 236 Wednesday, April 8, 2009 12:23 PM
Breakdown assistance
245
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
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. 216
.
Before removing the spare wheel, you must take out the box with the vehicle tool kit box
⇒page 244, fig. 215
.
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 235) 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 stic
ker must not be concealed (e.g. by the
wheel trim).•
Do not drive with this spare wheel at more than 80 km/h - risk of accident. Avoid
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 spare 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 244 and the
spare wheel
⇒
page 245 out of the luggage compartment.WARNING
•
If you find yourself in flowing traffic switch on the hazard warning lights
system and place the warning triangle
on the side of the road at the
prescribed distance from
your vehicle while obse
rving all national legal
provisions. In this way you are protecting not only yourself but also other road users.
Fig. 216 Luggage compart- ment: Spare wheel
s2dk.1.book Page 245 Wednesday, April 8, 2009 12:23 PM
Index 290Towing device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Towing protection monitoring . . . . . . . . . . . . . . . . . 53
towing vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Tow-starting and towing vehicle
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . 136
Traction Control System . . . . . . . . . . . . . . . . . . . . . . 195
Traction control system (TCS)
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
General Maintenance . . . . . . . . . . . . . . . . . . . . 208
Transporting children safely . . . . . . . . . . . . . . . . . . 185
Tread depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Twindoor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Two-way radio systems . . . . . . . . . . . . . . . . . . . . . . 141
Tyre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Tyre inflation pressure
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Tyres
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239UUnderbody protection . . . . . . . . . . . . . . . . . . . . . . . 215
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Uphill-Start off-Assist . . . . . . . . . . . . . . . . . . . . . . . . 198VVanity mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Ventilation
Auxiliary ventilation . . . . . . . . . . . . . . . . . . . . . . 112
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
WWarning lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Warning symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Warning triangle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Washing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
with a high-pressure cleaner . . . . . . . . . . . . . . 212
Washing the vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 211
Washing vehicle by hand . . . . . . . . . . . . . . . . . . . . 212
Wax treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Wheel
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Spare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Wheel trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235, 247
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
de-icing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Windscreen
Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Windscreen heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Windscreen washer nozzles . . . . . . . . . . . . . . . . . . . . 73
Windshield washer fluid reservoir . . . . . . . . . . . . 234
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Windshield washer system . . . . . . . . . . . . . . . . . . . 234
Windshield wiper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239Wiper blades
Replacing the wiper blades . . . . . . . . . . . . . . . . . 74
XXenon headlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
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