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The use of shims or brake dust shields is not
permitted and may invalidate the vehicle's
general operating permit.
Vehicles with a tyre pressure monitoring sys-
R
tem: all fitted wheels must be equipped with
functioning sensors for the tyre pressure mon-
itoring system.
At temperatures below 7 °C, use winter tyres
R
or all-season tyres marked i M+S for all
wheels.
Winter tyres provide the best possible grip in
wintry road conditions.
For M+S tyres, only use tyres with the same
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tread.
Observe the maximum permissible speed for
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the M+S tyres fitted.
If the tyre's maximum speed is below that of
the vehicle, this must be indicated by an
appropriate label in the driver's field of vision.
Run in new tyres at moderate speeds for the
R
first 100 km.
Replace the tyres after six years at the latest,
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regardless of wear.
When replacing with tyres that do not feature
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run-flat characteristics: Vehicles with
MOExtended tyres are not equipped with a
TIREFIT kit at the factory. Equip the vehicle
with a TIREFIT kit after replacing with tyres
that do not feature run-flat characteristics,
e.g. winter tyres.
%
You can permanently limit the speed for driv-
ing with winter tyres (
page 288).
/
For more information on wheels and tyres, con-
tact a qualified specialist workshop.
Notes on changing wheels
& WARNING Risk of injury through different
wheel sizes
Interchanging the front and rear wheels can
severely impair the driving characteristics.
The disk brakes or wheel suspension compo-
nents may also be damaged.
Only interchange the front and rear
#
wheels if the wheels and tyres have the
same dimensions.
F243 0059 02
Wheels and tyres 551
Interchanging the front and rear wheels if the
wheels or tyres have different dimensions can
render the general operating permit invalid.
Observe the instructions and safety notes on
"Changing a wheel" (
page 548).
/
The wear patterns on the front and rear wheels
differ:
front wheels wear more on the tyre shoulder
R
rear wheels wear more in the centre of the
R
tyre
Do not drive with tyres that have too little tread
depth. This significantly reduces traction on wet
roads (aquaplaning).
On vehicles with the same front and rear wheel
size, you can interchange the wheels every
5000 to 10,000 km, depending on the wear.
Ensure the direction of rotation is maintained for
the wheels.
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