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119

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, underinflation, or 
excessive loading, either separately or 
in combination, can cause heat buildup 
and possible tire failure.

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

Tread wear 200 

Traction AA

Temperature A

BMW advises against using 
retreaded tires, since driving 

safety may be impaired. This is due to 
the possible variations in casing struc-
tures and, in some cases, to their 
extreme age, which can lead to a 
decrease in their durability.

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

DOT... 3502 indicates that the tire was 
manufactured in week 35 of the year 
2002.

BMW recommends the replacement of 
all tires – including the spare tire* – 
when the tires are no more than 6 years 
old, even if a tire life of 10 years is pos-
sible.

Run Flat tires consist of self-supporting 
tires and special rims. The tire rein-
forcement ensures that the tire retains 
some residual safety in the event of 
pressure drop and driving remains pos-
sible to a restricted degree. The vehicle 
is equipped with a Tire Pressure Moni-
tor (TPM) or Flat Tire Monitor, which 
indicate a flat tire.

For additional information on the Tire 
Pressure Monitor (TPM) or Flat Tire 
Monitor, refer to page 

Run Flat tires are only possible in 
conjunction with the Tire Pres-

sure Monitor (TPM) or Flat Tire Moni-
tor.

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Online Edition for Part-No. 01 41 0 156 804 - © 09/02 BMW AG