Mercedes-Benz CLA, Owner'S Manual

Page: 368 / 525

NNoottes on noise or unusual handling c es on noise or unusual handling char haract acter eris- is-
tics tics
Make sure there are no vibrations, noises or
unusual handling characteristics when the vehicle
is in motion. This may indicate that the wheels or
tyres are damaged. Hidden tyre damage could
also be causing the unusual handling characteris-
tics.
If you suspect that a tyre is defective, reduce your
speed immediately and have the tyres and wheels
checked at a quali ed specialist workshop.
NNoottes on r es on regularl egularly inspecting wheels and tyr y inspecting wheels and tyres es
&
W WARNING ARNING Risk of injury due to damaged
tyres
Damaged tyres can cause tyre pressure loss.
#
Check the tyres regularly for signs of
damage and replace any damaged tyres
immediately.
&
W WARNING ARNING Risk of aquaplaning due to
insu cient tyre tread
Insu cient tyre tread will result in reduced
tyre grip.
The risk of aquaplaning is increased on wet
roads, especially when the speed of the vehi-
cle is not adapted to suit the conditions.
#
Thus, you should regularly check the
tread depth and the condition of the
tread across the entire width of all tyres.
Minimum tread depth for:
R
Summer tyres: 3 mm
R
M+S tyres: 4 mm
#
For safety reasons, replace the tyres
before the legally-prescribed limit for the
minimum tread depth is reached.
Carry out the following checks on all wheels regu-
larly, at least once a month or as required, for
example, prior to a long journey or driving o -
road:
R
Check the tyre pressure (
/
page 366).
R
Visually inspect wheels and tyres for damage.
R
Check the valve caps.
R
Visual check of the tyre tread depth and the
tyre contact surface across the entire width.
The minimum tread depth for summer tyres is
3 mm and for winter tyres 4 mm.
NNoottes on sno es on snow c w chains hains
&
W WARNING ARNING Risk of accident due to incor-
rectly tted snow chains
If you have tted snow chains to the rear
wheels, they may drag against the vehicle
body or chassis components.
#
Never t snow chains on the rear
wheels.
#
Only t snow chains on the front wheels
in pairs.
Wheels and tyres 365 365