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Operating and road safety
402
Useful information
These Operating Instructions describe all the
models and standard and optional equipment of
your vehicle that were available at the time of
going to print. Country-specific differences are
possible. Bear in mind that your vehicle may not
be equipped with all the functions described.
This also applies to safety-relevant systems and
functions.
Read the information on qualified specialist
Y
workshops (
page 31).
Operating and road safety
Regular checking of wheels and tyres
Tyres are of particular importance to the oper-
ating and road safety of the vehicle.
Regularly check the following:
tyre pressure (
R
tyre tread
R
tyre condition
R
A tyre dealer, a qualified specialist workshop or
a Mercedes-Benz Service Centre will be able to
provide further you with information about the:
tyre load-bearing capacity (LI, Load Index)
R
tyre speed rating
R
tyre age
R
causes and consequences of tyre wear
R
measures to be taken in the event of tyre
R
damage
types of tyre for specific regions, areas of
R
operation or conditions of vehicle use
interchangeability of tyres, etc.
R
Tyre tread
G
WARNING
Insufficient tyre tread will reduce tyre trac-
tion. The tyre is no longer able to dissipate
water. This means that on wet road surfaces,
the risk of aquaplaning increases, in particular
where speed is not adapted 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 differ-
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page 404)
ent 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:
summer tyres: 3 mm
R
M+S tyres: 4 mm
R
For safety reasons, replace the tyres before
the legally prescribed limit for the minimum
tyre tread depth is reached.
G
WARNING
There is a danger of aquaplaning occurring,
even if you are driving slowly and your tyres
have sufficient tread depth, depending on the
depth of water on the road. There is a risk of
an accident.
For this reason, avoid tyre ruts and brake
carefully.
Example: tyre tread wear indicator
:
A specified minimum tread depth is a legal
requirement for all tyres. Observe the legal
requirements for the country you are currently
in.
The less tyre tread depth remaining, the poorer
the road grip and handling characteristics of the
vehicle, particularly if the road surface is wet or
snow-covered.
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