Information on noise or unusual driving charac-
teristics
While driving, pay attention to vibrations, noises
and unusual driving characteristics, e.g. pulling to
one side. This may indicate damage to the wheels
or tyres. If you suspect that a tyre is defective,
reduce your speed. Stop the vehicle as soon as
possible to check if wheels and tyres have been
damaged or are no longer functioning properly.
Hidden tyre damage could also be causing the
unusual driving characteristics. If no signs of dam-
age can be detected, have the tyres and wheels
checked at a qualified specialist workshop.
Notes on regularly inspecting wheels and tyres
&
WARNING Risk of injury due to damaged
tyres
Damaged tyres can cause tyre pressure loss.
#
Check the tyres regularly for signs of
damage and replace any damaged tyres
immediately.
Check the wheels and tyres of your vehicle for
damage regularly, i.e. at least every two weeks, as
well as after driving off-road or on rough roads.
Damaged wheels can lead to a loss of tyre pres-
sure.
Look out for the following types of damage, for
example:
R
cuts in the tyres
R
punctures in the tyres
R
tears in the tyres
R
bulges on tyres
R
deformation or severe corrosion on wheels
&
WARNING Risk of aquaplaning due to
insufficient tyre tread
Insufficient tyre tread will result in reduced tyre
grip.
The risk of aquaplaning is increased on wet
roads, especially when the speed of the vehicle
is not adapted to suit the conditions.
#
Thus, you should regularly check the
tread depth and the condition of the
tread across the entire width of all tyres.
Minimum tread depth for:
R
Summer tyres: 3 mm
R
M+S tyres: 4 mm
#
For safety reasons, replace the tyres
before the legally-prescribed limit for the
minimum tread depth is reached.
Conduct the following checks regularly on all
wheels, at least once a month or as required, e.g.
before a long journey or when driving off-road:
R
check the tyre pressure (
/
page 236)
R
check the valve caps
Valves must be protected from moisture and
dirt with valve caps specifically approved by
Mercedes-Benz for your vehicle.
R
visually inspect the tread depth and the tyre
tread across the whole tyre width
The minimum tread depth for summer tyres is
3 mm and for winter tyres 4 mm.
Information on driving with summer tyres
At temperatures below 10 °C summer tyres lose
elasticity and therefore traction and braking power.
Change the tyres on your vehicle to M+S tyres.
Using summer tyres at very cold temperatures
could cause tears to form, thereby damaging the
tyres permanently. Mercedes-Benz cannot accept
responsibility for this type of damage.
Once you have fitted the summer tyres:
R
Check the tyre pressures (
/
page 236)
R
Restart the tyre pressure monitor
(
/
page 239)
Information on M+S tyres
At temperatures below 10 °C, use winter tyres or
all-season tyres that are marked with M+S.
Only winter tyres bearing the
i
snowflake sym-
bol in addition to the M+S marking provide the
best possible grip in wintry road conditions.
Only these tyres allow driving safety systems such
as ABS and ESP
®
to also function optimally in win-
ter. These tyres have been developed specifically
for driving in snow.
Use M+S tyres of the same make and tread on all
wheels to maintain safe handling characteristics.
Observe the maximum permissible speed specified
for the M+S tyres you have fitted.
Wheels and tyres 235
T447 0414 02
Summary of Contents for EQV 2021
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