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MOBILITY Wheels and tires
140
Winter tires
When winter tires wear down past a tread depth
of 0.16 in/4 mm, they become perceptibly less
suitable for winter conditions. In the interest of
safety, new tires should be installed.
Minimum tread depth
Wear indicators in the base of the tread groove
are distributed around the tire's circumference;
the letters TWI, for Tread Wear Indicator, on the
tire's sidewalls identify tires that incorporate
these wear indicators. When tire tread is worn
down to the level of the wear indicators, the
remaining tread depth is 0.063 in/1.6 mm.
Tire damage
Driving over rough or damaged road surfaces, as
well as debris, curbs, and other obstacles can
cause serious damage to wheels, tires, and
suspension parts. This is more likely to occur
with low-profile tires, which provide less
cushioning between the wheel and the road. Be
careful to avoid road hazards and reduce your
speed, especially if your vehicle is equipped with
low-profile tires.
Unusual vibrations encountered during normal
vehicle operation can indicate tire failure or
some other vehicle defect. This can, for exam-
ple, be caused by driving over curbs. The same
applies to any other abnormal road behavior,
such as pulling severely to the right or left.
In these cases, reduce speed immediately
and have wheels and tires thoroughly
checked. To do so, drive carefully to the nearest
MINI dealer or a specialized tire shop that has
specially trained personnel working in accor-
dance with the specifications of the MINI manu-
facturer. If necessary, have the vehicle towed
there.
Otherwise, tire damage can be extremely
dangerous for vehicle occupants and other road
users.<
Tire age
The manufacturing date of tires is contained in
the tire coding:
DOT ... 1012 means that the tire was manu-
factured during the 10th week of 2012.
For various reasons, such as the development of
brittleness, the manufacturer of your MINI
recommends tire replacement after no more
than 6 years, regardless of the actual wear of the
tires.
Run-flat tires
The symbol identifying run-flat tires is a circle
with the letters RSC on the sidewall.
Run-flat tires comprise a conditionally self-
supporting tire and a special rim. The reinforce-
ment in the sidewalls ensures that the tire can
continue to be used subject to certain restric-
tions, even if depressurized.
For information on continuing to drive with a flat
tire, refer to Indication of a flat tire, page 67.
Online Edition for Part no. 01 40 2 914 744 - © 07/12 BMW AG
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