SMART fortwo 2015, Руководство пользователя, Страница: 203 / 228

Regularly check the wheels and tyres of your
vehicle for damage, at least once a month, as
well as after driving on rough roads. Damaged
wheels can cause a loss of tyre pressure. Pay
particular attention to damage such as:
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cuts in the tyres
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punctures in the tyres
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tears in the tyres
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bulges on tyres
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deformation or severe corrosion on wheels
Regularly check the tyre tread depth and the
condition of the tread across the whole width
of the tyre (
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page 201). If necessary, turn the
front wheels to full lock in order to inspect
the inner side of the tyre surface.
All wheels must have a valve cap to protect the
valve against dirt and moisture. Do not fit
anything onto the valve other than the stand-
ard valve cap or other valve caps approved for
your vehicle by smart. Do not fit any other
valve caps or systems, e.g. tyre pressure mon-
itoring systems.
Regularly check the pressure of all the tyres,
particularly prior to long trips. Adjust the
tyre pressure as necessary (
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page 203).
The service life of tyres depends on various
factors, including the following:
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driving style
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tyre pressure
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mileage
Notes on tyre profile
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WARNING
Insufficient tyre tread will reduce tyre
traction. The tyre is no longer able to dis-
sipate water. This means that on wet road
surfaces, the risk of aquaplaning increa-
ses, in particular where speed is not adap-
ted to suit the driving conditions. There is
a risk of accident.
If the tyre pressure is too high or too low,
tyres may exhibit different levels of wear
at different locations on the tyre tread.
Thus, you should regularly check the tread
depth and the condition of the tread across
the entire width of all tyres.
Minimum tyre tread depth for:
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summer tyres: 3 mm
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M+S tyres: 4 mm
For safety reasons, replace the tyres before
the legally prescribed limit for the mini-
mum tyre tread depth is reached.
Selecting, fitting and replacing tyres
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WARNING
Exceeding the stated tyre load-bearing
capacity and the approved maximum speed
could lead to tyre damage or the tyre burst-
ing. There is a risk of accident.
Therefore, only use tyre types and sizes
approved for your vehicle model. Observe
the tyre load rating and speed rating
required for your vehicle.
Pay special attention to the country-specific
requirements for tyre approval. These
requirements can stipulate a specific tyre
type for your vehicle. Furthermore, the use of
certain tyre types in certain regions and
areas of operation can be highly beneficial.
You can find further information regarding
tyres at specialist tyre retailers, at quali-
fied specialist workshops or at any smart
centre.
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Only fit tyres and wheels of the same type
and make.
Exception: it is permissible to fit a dif-
ferent type or make in the event of a flat
tyre.
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Only fit tyres of the correct size onto the
wheels.
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Run in new tyres at moderate speeds for the
first 100 km. They only reach their full per-
formance after this distance.
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Do not drive with tyres which have too little
tread depth. This otherwise significantly
reduces the traction on wet roads (aqua-
planing).
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Replace the tyres after six years at the lat-
est, regardless of wear.
Operation
201
>> Wheels and tyres.
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