(tires with run-flat characteristics)" section
(Y page 288).
R
Only mount tires of the correct size onto the
wheels.
R
Break in new tires at moderate speeds for
the first 60 miles (100 km). The new tires
only reach their full performance after this
distance.
R
Do not drive with tires which have too little
tread depth. This significantly reduces the
traction on wet roads (hydroplaning).
R
Replace the tires after six years at the lat-
est, regardless of wear.
Observe the notes on the emergency spare
wheel (Y page 330).
MOExtended tires (tires with run-flat
properties)
With MOExtended tires (tires with run flat
characteristics), you can continue to drive your
vehicle even if there is a total loss of pressure
in one or more tires.
MOExtended tires may only be used in con-
junction with an activated tire pressure loss
warning system (Canada only) or tire pressure
monitor (USA only) and only on wheels specifi-
cally tested by Mercedes-Benz.
Notes on driving with MOExtended tires with a
flat tire (Y page 288).
Vehicles equipped with MOExtended tires are
not equipped with a TIREFIT kit at the factory.
It is therefore recommended that you addition-
ally equip your vehicle with a TIREFIT kit if you
mount tires that do not feature run-flat charac-
teristics, e.g. winter tires. A TIREFIT kit may be
obtained from a qualified specialist workshop.
Winter operation
General notes
Have your vehicle winter-proofed at a qualified
specialist workshop at the onset of winter.
Observe the notes in the "Changing a wheel"
section (Y page 325).
Driving with summer tires
At temperatures below 45 ‡ (+7 †), summer
tires lose elasticity and therefore traction and
braking power. Change the tires on your vehi-
cle to M+S tires. Using summer tires 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
Damaged tires can cause tire inflation pres-
sure loss. As a result, you could lose control
of your vehicle. There is a risk 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 a tire tread depth of less than
ã in (4 mm) are not suitable for use in win-
ter and do not provide sufficient traction.
There is a risk of an accident.
M+S tires with a tread depth of less than ã
in (4 mm) must be replaced immediately.
At temperatures below 45 ‡ (+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
symbol in addition to the M+S marking provide
the best possible grip in wintry road condi-
tions. Only these tires will allow driving safety
systems such as ABS and ESP
®
to 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 character-
istics.
Always observe the maximum permissible
speed specified for the M+S tires you have
mounted.
306
Winter operation
Wheels and tires
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