Mercedes-Benz CLS Owner's Manual page 338

Only fit wheels of the same size on one axle
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(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.
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
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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 i M+S for all
wheels.
Winter tyres provide the best possible grip in
wintry road conditions.
For i M+S tyres, only use tyres with the
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same tread.
Observe the maximum permissible speed for
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the i 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
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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 190).
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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 (
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Notes on the emergency spare wheel
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( page 342)
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Notes on interchanging wheels
& WARNING Risk of injury through differ‐
ent 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
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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.
The wear patterns on the front and rear wheels
differ:
front wheels wear more on the tyre shoulder
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page 328)
Wheels and tyres 335
page 329)
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