Mercedes-Benz A-Class Operator's Manual page 408

406 Wheels and tires
Only use tires, wheels or accessories tested
and approved by Mercedes-Benz.
* NOTE Risk to driving safety from retrea‐
ded tires
Retreaded tires are neither tested nor recom‐
mended by Mercedes-Benz, since previous
damage cannot always be detected on
retreaded tires.
For this reason driving safety cannot be guar‐
anteed.
Do not use used tires if you have no
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information about their previous usage.
* NOTE Possible damage to wheels or tires
when driving over obstacles
Large wheels have a lower tire section width.
The lower the tire section width, the greater
is the risk of damage to wheels or tires when
driving over obstacles.
Avoid obstacles or drive particularly
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carefully.
* NOTE Damage to summer tires at low
ambient temperatures
Using summer tires at very low ambient tem‐
peratures can cause cracks to form, thereby
damaging the tires permanently.
At temperatures below 45 °F (7 °C)
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use M+S tires.
Accessory parts that are not approved for your
vehicle by Mercedes-Benz or are not being used
correctly can impair the operating safety.
Before purchasing and using non-approved
accessories, visit a qualified specialist workshop
and inquire about:
Suitability
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Legal stipulations
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Factory recommendations
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& WARNING Risk of accident with high
performance tires
The special tire tread in combination with the
optimized tire compound means that the risk
of skidding or hydroplaning on wet roads is
increased.
In addition, the tire grip is greatly reduced at
a low outside temperature and tire running
temperature.
®
Switch on the ESP and adapt your
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driving style accordingly.
Use M+S tire at outside temperatures
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of less than 10 °C (50 °F).
Observe the following when selecting, installing
and replacing tires:
Only use tires and wheels of the same type
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(summer tires, winter tires, MOExtended
tires) and the same make.
Only install wheels of the same size on one
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axle (left and right).
It is only permissible to install a different
wheel size in the event of a flat tire in order
to drive to the specialist workshop.
Only install tires of the correct size onto the
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wheels.