Tire Pressure; Snow Chains - Mercedes-Benz CLA Operator's Manual

Only winter tires 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 tires will allow driving
safety systems such as ABS and ESP
function optimally in winter. These tires have
been developed specifically for driving in
snow.
Use M+S tires 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 tires you have
mounted.
Once the winter tires are mounted:
Check the tire pressures (
X
Restart the tire pressure monitor
X
( page 323).
Y

Snow chains

G WARNING
If snow chains are mounted on the rear
wheels, the snow chains could cause abrasion
to the vehicle body or to chassis components.
This could cause damage to the vehicle or the
tires. There is a risk of an accident.
To avoid hazardous situations:
never mount snow chains on the rear
R
wheels
only mount snow chains in pairs on the
R
front wheels.
! On some tire sizes there is not enough
space for snow chains. To avoid damage to
the vehicle or tires, observe the "Wheel and
tire combinations" section under "Tires and
wheels".
! Vehicles with steel wheels: if you
mount snow chains on steel wheels, you
may damage the hub caps. Remove the hub
caps from the relevant wheels before
mounting the snow chains.
For safety reasons, Mercedes-Benz recom-
mends that you only use snow chains that
have been specially approved for your vehicle
by Mercedes-Benz, or are of a corresponding
standard of quality.
®
to
If you intend to mount snow chains, please
bear the following points in mind:
R
R
page 320). R
Y
R
R
i

Tire pressure

Tire pressure specifications
G
Underinflated or overinflated tires pose the
following risks:
R
R
R
There is a risk of an accident.
Snow chains may not be mounted on all
wheel/tire combinations. Permissible
wheel-tire combinations (
Only use snow chains when driving on
roads completely covered by snow.
Remove the snow chains as soon as possi-
ble when you come to a road that is not
snow-covered.
Local regulations may restrict the use of
snow chains. Observe the appropriate reg-
ulations if you wish to mount snow chains.
Do not exceed the maximum permissible
speed of 30 mph (50 km/h).
When snow chains are installed, never use
Active Parking Assist (
You may wish to deactivate ESP
( page 68) when pulling away with snow
Y
chains installed. You can thereby allow the
wheels to spin in a controlled manner, ach-
ieving an increased driving force (cutting
action).
WARNING
the tires may burst, especially as the load
and vehicle speed increase.
the tires may wear excessively and/or
unevenly, which may greatly impair tire
traction.
the driving characteristics, as well as steer-
ing and braking, may be greatly impaired.
Tire pressure
page 340).
Y
page 181).
Y
®
Z
317