If you fit M+S tyres that have a lower maximum
permissible speed than the maximum design
speed of the vehicle, affix an appropriate warning
sign in the driver's field of vision. You can obtain
this at a qualified specialist workshop.
Once you have fitted the winter tyres M+S, take
the following measures:
R
check the tyre pressure (
/
page 236)
R
restart the tyre pressure monitoring system
(
/
page 239)
Notes on snow chains
&
WARNING Risk of accident due to incor-
rectly fitted snow chains
If you have fitted snow chains to the rear
wheels, they may drag against the vehicle body
or chassis components.
#
Never fit snow chains on the rear wheels.
#
Only fit snow chains on the front wheels
in pairs.
For safety reasons, Mercedes-Benz recommends
that you only use snow chains that have been
checked and approved. You can find further infor-
mation on snow chains recommended for
Mercedes-Benz in the wheel and tyre overview at
&
WARNING Risk of accident due to snow
chains breaking
If you drive too fast with snow chains, they can
break, injure other persons, and damage the
vehicle.
#
Observe the maximum permissible speed
for operation with snow chains.
Observe the following notes when using snow
chains:
R
Snow chains are only permissible for certain
wheel/tyre combinations. You can obtain infor-
mation on them at a qualified specialist work-
shop.
R
For safety reasons, only use snow chains
approved by Mercedes-Benz.
R
Use snow chains only when the road surface is
completely snow-covered. Remove the snow
chains as soon as possible when you come to
a road that is not snow-covered.
R
Local regulations may restrict the use of snow
chains. Observe the applicable regulations
before fitting snow chains.
R
If snow chains are fitted, the maximum permis-
sible speed is 50 km/h.
%
You can deactivate ESP
®
to pull away
(
/
page 150). This allows the wheels to spin,
achieving an increased driving force.
Tyre pressure
Notes on tyre pressure
Driving with tyre pressure that is too high or too
low can:
R
Shorten the service life of the tyres
R
Cause increased tyre damage
R
Adversely affect handling characteristics and
thus driving safety, for example, due to aqua-
planing
&
WARNING Risk of accident due to repea-
ted pressure drop in the tyres
The wheels, valves or tyres could be damaged.
Too low a tyre pressure can lead to the tyres
bursting.
#
Examine the tyres for foreign objects.
#
Check whether the tyre has a puncture
or the valve has a leak.
#
If you are unable to rectify the damage,
contact a qualified specialist workshop.
Information on the recommended tyre pressure for
the vehicle's factory-fitted tyres can be found
inside the flap on the left B-pillar or in the tyre
pressure tables (
/
page 237).
Use a suitable pressure gauge to check the tyre
pressure. The outer appearance of a tyre does not
permit any reliable conclusion about the tyre pres-
sure.
%
The difference in pressure of the tyres of an
axle may not be higher than 10 kPa (0.1 bar/
1.5 psi).
Vehicles with a tyre pressure monitoring system:
you can also check the tyre pressure using the on-
board computer.
236 Wheels and tyres
T447 0414 02
Summary of Contents for EQV 2021
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