Mercedes-Benz 2013 S-CLASS, Owner'S Manual, Page: 446 / 493

Always observe the maximum permissible
speed specified for the M+S tyres you have
fitted.
If you fit M+S tyres that have a lower maxi-
mum permissible speed than that of the vehi-
cle, affix an appropriate warning sign in the
driver's field of vision. This can be obtained
at a qualified specialist workshop.
Under these circumstances, you should also
use permanent SPEEDTRONIC to restrict the
maximum speed of the vehicle so that it does
not exceed the maximum permissible speed
for the M+S tyres (
Y
page 228).
If you have fitted M+S tyres:
X
Check the tyre pressures (
Y
page 443).
X
Restart the tyre pressure loss warning sys-
tem (
Y
page 448).
X
Restart the tyre pressure monitor
(
Y
page 447).
Information about driving with an emergency
spare wheel (
Y
page 468).
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:
R
never fit snow chains on the front wheels
R
fit snow chains to the rear wheels in pairs.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specifically approved for your vehi-
cle by Mercedes-Benz, or that are of a corre-
sponding standard of quality.
If you intend to fit snow chains, please bear
the following points in mind:
R
snow chains cannot be fitted to all wheel-
tyre combinations. Permissible wheel-tyre
combinations (
Y
page 455).
R
only use snow chains if 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 appropriate reg-
ulations if you wish to fit snow chains.
R
do not exceed the maximum permissible
speed of 50 km/h.
R
on vehicles with AIRMATIC (
Y
page 243) or
Active Body Control (ABC) (
Y
page 241),
you must drive at raised vehicle level if
snow chains have been fitted.
You may wish to deactivate ESP
®
(
Y
page 84) when pulling away with snow
chains fitted. This way you can allow the
wheels to spin in a controlled manner, ach-
ieving an increased driving force (cutting
action).
Information about driving with an emergency
spare wheel (
Y
page 468).
Tyre pressure
Tyre pressure specifications
G
WARNING
Tyres with insufficient or excessive tyre pres-
sure harbour the following hazards:
R
the tyres may burst, especially as the load
and vehicle speed increase.
R
the tyres may wear excessively or unevenly
which can severely impair tyre traction.
R
the handling as well as steering and braking
characteristics may be severely affected.
There is a risk of an accident.
Tyre pressure
443
Whe
el
s
and
tyres
Z