Mercedes-Benz A-Class Operator's Manual page 409

At temperatures below 45 °F (7 °C), use win‐
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ter tires or all-season tires marked M+S for
all wheels.
Winter tires bearing the i snowflake sym‐
bol in addition to the M+S marking provide
the best possible grip in wintry road condi‐
tions.
For M+S tire , only use tires with the same
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tread.
Observe the maximum permissible speed for
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the M+S tires installed.
If this is below the vehicle's maximum speed,
this must be indicated in an appropriate label
in the driver's field of vision.
Break in new tires at moderate speeds for
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the first 60 miles (100 km).
Replace the tires after six years at the latest,
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regardless of wear.
When replacing with tires that do not fea‐
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ture run-flat characteristics: vehicles with
MOExtended tires are not equipped with a
TIREFIT kit at the factory. Equip the vehicle
with a TIREFIT kit after replacing with tires
that do not feature run-flat characteristics,
e.g. winter tires.
For more information on wheels and tires, con‐
tact a qualified specialist workshop.
Be sure to also observe the following further
related subjects:
Notes on tire pressure ( page 388)
→
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Tire and Loading Information placard
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( page 393)
→
Tire size designation, load-bearing capacity,
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speed rating and load index (
→
Tire pressure table ( page 390)
→
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Notes on the emergency spare wheel
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( page 414)
→
Notes on rotating wheels
& WARNING Risk of injury through differ‐
ent wheel sizes
Interchanging the front and rear wheels if the
wheels or tires have different dimensions
may severely impair the driving characteris‐
tics.
The wheel brakes or wheel suspension com‐
ponents may also be damaged.
Rotate front and rear wheels only if the
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wheels and tires are of the same dimen‐
sions.
The wear patterns on the front and rear wheels
differ:
Front wheels wear more on the shoulder of
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page 400)
the tire
Rear wheels wear more in the center of the
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tire
On vehicles that have the same size front and
rear wheels, rotate the wheels according to the
intervals in the tire manufacturer's warranty
book in your vehicle documents. If this is not
available, rotate the tires every
3,000 to 6,000 miles (5,000 to 10,000 km),
depending on the wear. Ensure that the direction
of rotation is maintained.
Wheels and tires 407