When you have fitted the M+S tyres:
X
Check the tyre pressures (
Y
page 307).
X
Restart the tyre pressure loss warning system
(
Y
page 309).
X
Restart the tyre pressure monitor
(
Y
page 311).
Information about driving with an emergency
spare wheel (
Y
page 318).
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 vehicle by
Mercedes-Benz, or that are of a corresponding
standard of quality. For more information,
please contact a qualified specialist workshop.
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 combi-
nations (
Y
page 317).
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 regulations if
you wish to fit snow chains.
R
do not exceed the maximum permissible
speed of 50 km/h.
R
on vehicles with Active Body Control (ABC),
you must drive at a raised vehicle level if snow
chains have been fitted (
Y
page 175).
When pulling away with snow chains fitted, you
can deactivate ESP
®
(
Y
page 67). This way you
can allow the wheels to spin in a controlled
manner, achieving increased driving force (cut-
ting action).
Information about driving with an emergency
spare wheel (
Y
page 318).
Tyre pressure
Tyre pressure specifications
G
WARNING
Underinflated or overinflated tyres pose the
following risks:
R
the tyres may burst, especially as the load
and vehicle speed increase.
R
the tyres may wear excessively and/or
unevenly, which may greatly impair tyre
traction.
R
the driving characteristics, as well as steer-
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:
R
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-
road driving
If necessary, correct the tyre pressure.
G
WARNING
If you fit unsuitable accessories onto tyre
valves, the tyre valves may be overloaded and
malfunction, which can cause tyre pressure
loss. Due to their design, retrofitted tyre pres-
sure monitors keep the tyre valve open. This
can also result in tyre pressure loss. There is a
risk of accident.
Only screw standard valve caps or valve caps
specifically provided by Mercedes-Benz for
your vehicle onto the tyre valve.
G
WARNING
If the tyre pressure drops repeatedly, the
wheel, valve or tyre may be damaged. Tyre
pressure that is too low may result in a tyre
blow-out. There is a risk of accident.
Tyre pressure
307
Wheels
and
tyres
Z
