Mercedes-Benz S-Class Coupe, Owner'S Manual

Page: 382 / 413

At temperatures below +7 †, use winter tyres
or all-season tyres. Both are marked with
M+S.
Only winter tyres bearing the
i snowflake
symbol in addition to the M+S marking pro-
vide the best possible grip in wintry road con-
ditions. Only these tyres will allow driving
safety systems such as ABS and ESP
®
to
function optimally in winter. 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 charac-
teristics.
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 191).
If you have fitted M+S tyres:
X
Check the tyre pressures (
Y
page 380).
X
Restart the tyre pressure loss warning sys-
tem (
Y
page 385).
X
Restart the tyre pressure monitor
(
Y
page 383).
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 391).
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 207) or
Active Body Control (ABC) (
Y
page 204),
you must drive at raised vehicle level if
snow chains have been fitted.
You may wish to deactivate ESP
®
(
Y
page 76)
when pulling away with snow chains fitted.
This way you can allow the wheels to spin in a
controlled manner, achieving an increased
driving force (cutting action).
Winter operation
379
Whe
el
s
and
tyres
Z