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Directives to be observed
R
Only mount tires and wheels of the same
type and make.
R
Only mount tires of the correct size onto
the wheels.
R
After mounting new tires, run them in at
moderate speeds for the first 60 miles
(100 km) as they only reach their full
performance after this distance.
R
Do not use tires until they are excessively
worn as the tire traction on wet road
surfaces decreases significantly when the
tread depth is less than
1
/
8
in (3 mm).
R
If the vehicle is heavily laden, check the tire
pressure and adjust it if necessary.
R
When parking your vehicle, make sure that
the tires do not get deformed by the curb
or other obstacles. If it is necessary to drive
over curbs, speed humps or similar
elevations, try to do so slowly and at an
obtuse angle. Otherwise, the tires,
particularly the sidewalls, can get
damaged.
Maintenance and care of wheels and
tires
Checking wheels and tires
G
Warning
Regularly check the tires for damage.
Damaged tires can cause tire inflation
pressure loss. As a result, you could lose
control of your vehicle.
Worn, old tires can cause accidents. If the tire
tread is worn to minimum tread depth, or if
the tires have sustained damage, replace
them.
R
Regularly check the wheels and tires of
your vehicle for damage (e.g. cuts,
punctures, tears, bulges on tires and
deformation or cracks or severe corrosion
on wheels), at least once a month, as well
as after driving off-road or on rough roads.
Damaged wheels can cause a loss of tire
pressure.
R
Regularly check the tire tread depth and
the condition of the tread across the whole
width of the tire (Y page 351). If necessary,
turn the front wheels to full lock in order to
inspect the inner side of the tire surface.
R
All wheels must have a valve cap to protect
the valve against dirt and moisture. Do not
install anything on the valve (such as tire
pressure monitoring systems) other than
the standard valve cap or other valve caps
approved by Mercedes-Benz for your
vehicle.
R
Regularly check the pressure of all the tires
including the emergency spare wheel or the
spare wheel, particularly prior to long trips,
and correct the pressure as necessary
(Y page 352).
Service life of tires
The service life of tires depends on the
following factors amongst other things:
R
driving style
R
tire pressure
R
mileage
Replace the tires after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel/spare wheel.
Tire tread
G
Warning
Although the applicable federal motor vehicle
safety laws consider a tire to be worn when
the tread wear indicators (TWI) become
visible at approximately
1
/
16
in (1.6 mm), we
recommend that you do not allow your tires
to wear down to that level. As tread depth
approaches
1
/
8
in (3 mm), the adhesion
properties on a wet road are sharply reduced.
Maintenance and care of wheels and tires
351
Tires and wheels
BA 212 USA, CA Edition B 2011; 1; 5, en-US
dimargi Version: 3.0.3.6
2010-05-20T13:33:46+02:00 - Seite 351
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