Fitting
Full wheel trim
Push the cap onto the wheel bolt up to the stop.
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Read and observe and on page 149 first.
The wheel bolt caps are housed in a plastic box in the spare wheel or in the
storage space for the spare wheel.
Pulling off
Hook the clamp found in the vehicle tool kit » page 159 into the reinforced
edge of the wheel trim.
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Wheel bolts
Push the wheel wrench through the clamp, support on the tyre and pull off
the wheel trim.
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Read and observe and on page 149 first.
Wheels and wheel bolts are matched to each other in terms of design. When-
ever you change the wheels fitted, e.g. light alloy wheels or wheels with win-
ter tyres, you must also use the matching wheel bolts of the correct length
and shape of bolt head. Correct fastening of the wheels depends on this.
Fitting
Press the wheel trim onto the wheel rim at the valve opening provided.
Then press the trim into the wheel rim until its entire circumference latches
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correctly into position.
CAUTION
Winter use
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Use the pressure of your hand only, do not strike the full wheel trim. Avoid
striking the trim heavily when it is not yet inserted in the wheel rim. This could
cause damage to the guide and centring elements of the trim.
When using the anti-theft wheel bolt, ensure that it is in the hole in the
Introduction
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This chapter contains information on the following subjects:
valve area » page 162, Securing wheels against theft.
If wheel trims are retrofitted it must be ensured that an adequate flow of air
is assured to cool the brake system.
Winter tyres
Snow chains
156
157
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Winter tyres
Wheel bolts
The handling of your vehicle will be significantly improved when driving on
wintry roads if you fit winter tyres. Summer tyres have less grip on ice, snow
and at temperatures below 7 °C. This is especially true of low-profile tyres or
high-speed tyres.
Fig. 137
Remove the cap
To achieve the best possible handling properties, winter tyres must be fitted
on all four wheels, the minimum tread depth must be 4 mm and tyres must be
no older than 4 years.
Winter tyres (marked with M+S and a peak/snowflake symbol) of a lower speed
category can be used provided that the permissible maximum speed of these
tyres is not exceeded even if the possible maximum speed of the vehicle is
higher.
Read and observe and on page 149 first.
Pulling off
The speed limit for winter tyres can be set in the MAXI DOT display in the Win-
ter tyres menu item » page 34.
Push the extraction pliers » page 159 sufficiently far onto the cap until the
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inner catches of the pliers are positioned at the collar of the cap.
Remove the cover in the direction of the arrow » Fig. 137.
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156
General Maintenance
English 
