Mini CLUBMAN Owner's Manual page 258

MOBILITY
cornering, hydroplaning, or peak traction
characteristics.
Temperature
The temperature grades are A, the highest,
B, and C, representing the tire's resistance
to the generation of heat and its ability to
dissipate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature can
cause the material of the tire to degenerate
and reduce tire life, and excessive tempera-
ture can lead to sudden tire failure. The
grade C corresponds to a level of perform-
ance which all passenger car tires must
meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades Band A
represent higher levels of performance on
the laboratory test wheel than the minimum
required by law.
Warning
The temperature grade for this tire is es-
tablished for a tire that is properly inflated
and not overloaded. Excessive speed, un-
derinflation, or excessive loading, either
separately or in combination, can cause
heat buildup and possible tire failure.
Runflat tires
Runflat tires, refer to page 261, are labeled
with a circular icon containing the letters
RSC marked on the tire sidewall.
M+S
Winter and all-season tires with better cold
weather performance than summer tires.
258
Wheels and tires
Online Edition for Part no. 01405A541A8 - II/22
Tire tread
Summer tires
Do not drive with a tire tread depth of less
than 0.12 in/3 mm, otherwise there is an
increased risk of aquaplaning.
Winter tires
Do not drive with a tire tread depth of less
than 0.16 in/4 mm, as such tires are less
suitable for winter driving conditions.
Minimum tread depth
Distributed over the tire circumference are
the tire manufacturer's wear indicators with
a height of at least 0.06 in/1.6 mm, which
serve as an indicator of tire tread wear.
The positions of the wear indicators are
marked on the tire sidewall with TWI, Tread
Wear Indicator.
Irrespective of the wear indicators, observe
the statutory regulations on the minimum
tread depth.
Tire damage
General information
Check your tires regularly for damage, for-
eign bodies lodged in the tread, and tread
wear.