Tire replacement – BMW M3 Convertible 2004 User Manual

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Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive tem-
perature can lead to sudden tire failure.
The grade C corresponds to a level of
performance which all passenger car
tires must meet under the Federal
Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels
of performance on the laboratory test
wheel than the minimum required by
law.

The temperature grade for this tire
is established for a tire that is

properly inflated and not overloaded.
Excessive speed, under-inflation, or
excessive loading, either separately or
in combination, can cause heat buildup
and possible tire failure.

Uniform Tire Quality Grading

Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:

Treadwear 200 Traction AA

Temperature A

Tire age

The date on which the tire was manu-
factured is indicated by the code on the
sidewall:

DOT ... 3603 indicates that the tire was
manufactured in week 36 of the year
2003.

BMW recommends the replacement of
all tires when the tires are no more than
6 years old, even if a tire life of 10 years
is possible.

Following wheel/tire changes

Comply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.

Following wheel and/or tire changes
you will need to reinitialize both the
sequential M gearbox with Drivelogic
and the Flat Tire Monitor, refer to
pages

Tire replacement