Winter Operation - Mercedes-Benz SL Roadster 2012 Owner's Manual

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 sys-
tems such as ABS and ESP
mally in winter. These tyres have been devel-
oped 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 a corresponding warning label 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
When you have fitted the M+S tyres:
Check the tyre pressures (
X
Restart the tyre pressure monitor
X
( page 604).
Y
For more information on driving with the
emergency spare wheel, see (
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
®
to function opti-
page 196).
page 600).
Y
page 614).
Y

Winter operation

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:
snow chains cannot be fitted to all wheel-
R
tyre combinations. Permissible wheel-tyre
combinations ( page 610).
Y
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.
local regulations may restrict the use of
R
snow chains. Observe the appropriate reg-
ulations if you wish to fit snow chains.
do not exceed the maximum permissible
R
speed of 50 km/h.
on vehicles with Active Body Control (ABC),
R
you must drive at a raised vehicle level if
snow chains have been fitted (
i
You may wish to deactivate ESP
pulling away with snow chains fitted
( page 74). This way you can allow the
Y
wheels to spin in a controlled manner, ach-
ieving an increased driving force (cutting
action).
For more information on driving with the
emergency spare wheel, see (
599
page 199).
Y
®
when
page 614).
Y
Z