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Tyre pressure
408
Under these circumstances, you should also
restrict the maximum design speed of the vehi-
cle using permanent SPEEDTRONIC so that it
does not exceed the maximum permissible
speed for the M+S tyres (
When you have fitted the M+S tyres:
Check the tyre pressures (
X
Restart the tyre pressure monitor
X
(
page 412).
Y
Restart the tyre pressure loss warning system
X
(
page 410).
Y
Information about driving with an emergency
spare wheel (
page 428).
Y
Snow chains
G
WARNING
If you have fitted snow chains to the front
wheels, they may scrape against the vehicle
body or chassis components. This could
cause damage to the vehicle or the tyres.
There is a risk of an accident.
To avoid hazardous situations:
never fit snow chains on the front wheels
R
fit snow chains to the rear wheels in pairs.
R
!
You must drive at raised vehicle level if snow
chains have been fitted. The vehicle could
otherwise be damaged. Observe the informa-
tion in the "AIRMATIC package" section.
!
When driving with snow chains fitted, do not
use the ADS sport mode (Adaptive Damping
System). The vehicle could otherwise be dam-
aged.
!
On some tyre sizes there is not enough
space for snow chains. In order to prevent
damage to the vehicle or the tyres, observe
the "Tyre and wheel combinations" section
under "Tyres and wheels".
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that have
been specifically approved for your vehicle by
Mercedes-Benz, or that are of a corresponding
standard of quality. For more information,
please contact a qualified specialist workshop.
page 207).
Y
page 408).
Y
If you intend to fit snow chains, please bear the
following points in mind:
only use snow chains if the road surface is
R
completely snow-covered. Remove the snow
chains as soon as possible when you come to
a road that is not snow-covered.
do not exceed the maximum permissible
R
speed of 50 km/h.
local regulations may restrict the use of snow
R
chains. Observe the appropriate regulations if
you wish to fit snow chains.
snow chains cannot be fitted to all wheel-tyre
R
combinations. Permissible wheel-tyre combi-
nations (
page 418).
Y
You may wish to deactivate ESP
away with snow chains fitted (
way you can allow the wheels to spin in a con-
trolled manner, achieving increased driving
force (cutting action).
Information about driving with an emergency
spare wheel (
page 428).
Y
Tyre pressure
Tyre pressure specifications
G
WARNING
Underinflated or overinflated tyres pose the
following risks:
the tyres may burst, especially as the load
R
and vehicle speed increase.
the tyres may wear excessively and/or
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unevenly, which may greatly impair tyre
traction.
the driving characteristics, as well as steer-
R
ing and braking, may be greatly impaired.
There is a risk of an accident.
Observe the recommended tyre pressure and
check the tyre pressure of all the tyres includ-
ing the spare wheel:
at least every two weeks
R
when the load changes
R
before embarking on a longer journey
R
for changed operating conditions, e.g. off-
R
road driving
If necessary, correct the tyre pressure.
®
when pulling
page 77). This
Y
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