R
Do not drive with tireswhich have too little
treaddepth.Thissignificantlyreducesthe
tractiononwet roads (hydroplaning).
R
Replace the tiresafter sixyears at the lat-
est, regardless of wear.
MOExtendedtires(tires with run-flat
properties)
With MOExtendedtires(tires with runflat
characteristics),you can continue to drive your
vehicleevenifthere is atotallossofpressure
in one or moretires.
MOExtendedtiresmay onlybeusedincon-
junction with an active tire pressure loss warn-
ing system or with an active tire pressure mon-
itorand on wheels specifically testedby
Mercedes-Benz.
NotesondrivingwithMOExtendedtireswitha
flattire (Y page 254).
Vehicles equipped with MOExtendedtiresare
not equipped with aTIREFIT kit at the factory.
It is therefore recommendedthatyou addition-
ally equipyourvehiclewithaTIREFIT kit if you
mount tiresthatdonot featurerun-flat charac-
teristics, e.g.winter tires. ATIREFIT kit can be
obtained fromaqualified specialistworkshop.
Winter operation
General notes
Haveyourvehiclewinter-proofed at aqualified
specialistworkshop at the onsetofwinter.
Observe the notesinthe "Changing awheel"
section(Ypage 289).
Driving with summertires
At temperatures below45‡(+7 †),summer
tiresloseelasticity and therefore tractionand
braking power. Changethe tiresonyourvehi-
cle to M+S tires. Usingsummertires at very
cold temperatures could cause cracks to form,
thereby damaging the tires permanently.
Mercedes-Benz cannot accept responsibility
for this type of damage.
G
WARNING
Damagedtires can cause tire inflation pres-
sure loss. As aresult, you could lose control
of yourvehicle. There is arisk of accident.
Check the tires regularly for signs of dam-
age and replace any damaged tires immedi-
ately.
M+S tires
G
WARNING
M+S tires with atire tread depth of less than
ã in (4 mm) are not suitable for use in win-
ter and do not providesufficient traction.
There is arisk of an accident.
M+S tires with atread depth of less than ã
in (4 mm) must be replaced immediately.
At temperatures below45‡(+7 †), use win-
ter tires or all-season tires. Both types of tire
are identified by the M+S marking.
Only winter tires bearing the i snowflake
symbolinaddition to the M+S marking provide
the best possible grip in wintry road condi-
tions.
Only these tires willallow driving safety sys-
tems such as ABS and ESP
®
to function opti-
mallyinwinter. These tires have been devel-
oped specificallyfor driving in snow.
Use M+S tires of the same make and tread on
all wheels to maintainsafe handling character-
istics.
Always observe the maximumpermissible
speed specified for the M+S tires you have
mounted.
When you have mounted the M+S tires:
X
Check the tire pressures (Y page 274).
X
Vehicles for Canada: restart the tire pres-
sure loss warning system (Y page 275).
X
Restart the tire pressure monitor
(Y page 275).
Information aboutdriving with an emergency
spare wheel(Ypage 294).
270
Winter operation
Wheelsand tires
