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400 Wheels and tyres
Only fit wheels of the same size on one axle
R
(left and right).
It is only permissible to fit a different wheel
size in the event of a flat tyre in order to drive
to the specialist workshop.
Only fit tyres of the correct size onto the
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wheels.
Do not make any modifications to the brake
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system, the wheels or the tyres.
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-
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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 or
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all-season tyres marked M+S for all wheels.
Winter tyres bearing the i snowflake sym-
bol in addition to the M+S marking 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 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.
For more information on wheels and tyres, con-
tact a qualified specialist workshop.
Be sure to also observe the following further rela-
ted subjects:
Notes on tyre pressure (
page 394)
/
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Tyre pressure table (
page 395)
/
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Notes on the emergency spare wheel
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(
page 407)
/
Notes on interchanging 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.
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 397)
/
The wear patterns on the front and rear wheels
differ:
front wheels wear more on the tyre shoulder
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rear wheels wear more in the centre of the
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tyre
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