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296 Wheels and tyres
Vehicles with a tyre pressure monitoring
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system: all fitted wheels must be equipped
with functioning sensors for the tyre pres‐
sure monitoring system.
At temperatures below 7 °C, use winter tyres
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or all-season tyres marked M+S for all
wheels.
Winter tyres bearing the i snowflake
symbol in addition to the M+S marking pro‐
vide 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 this is below the vehicle's maximum speed,
this must be indicated by an appropriate
label in the driver's field of vision.
Run in new tyres at moderate speeds for the
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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
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feature 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 characteris‐
tics, e.g. winter tyres.
%
You can permanently limit the maximum
vehicle speed for driving with winter tyres
(
page 146).
/
For more information on wheels and tyres, con‐
tact a qualified specialist workshop.
Be sure to also observe the following further
related subjects:
Notes on tyre pressure (
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/
Tyre pressure table (
page 287)
/
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Notes on interchanging wheels
& WARNING Risk of injury through differ‐
ent wheel sizes
Interchanging the front and rear wheels if the
wheels or tyres have different dimensions
may severely impair the driving characteris‐
tics.
The disk brakes or wheel suspension compo‐
nents may also be damaged.
Rotate front and rear wheels only if the
#
wheels and tyres are of the same
dimensions.
Interchanging the front and rear wheels if the
page 286)
wheels or tyres have different dimensions can
render the general operating permit invalid.
The wear patterns on the front and rear wheels
differ:
Front wheels wear more on the shoulder of
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the tyre
Rear wheels wear more in the centre of the
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tyre
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