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Tir es a nd wh ee ls
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U.S. DOT tire identification
number
Sever snow cond itions
Tire ply composition and materials used
Maximum load rating
Treadwear, traction and t emperature grades
@
Maximum permissible inflation pressure
The tires and rims are essentia l parts of the vehicle 's design. The
tires and rims approved by Audi are special ly matched to the char-
acteristics of the vehic le and can make a major contribution to good
road hold ing and safe handling when in good cond ition and prop-
erly inf lated =>
.&,.
We recommend tha t all work on tires and wheels be performed by
an authorized Audi dea ler. They are familiar with recommended
procedures and have the necessary special too ls and spare parts as
we ll as the proper facilities for disposing of the old tires.
Authori zed Audi dea lers have the necessary information about tech -
n ical requirements for insta lling or changing tires and rims.
R ep lac in g t ir e s a nd wh ee ls
Tires shou ld be replaced at least in pairs and not individual ly (for
examp le both front tires or both rear tires together).
Be sure to read and heed the informat ion to the tire pressure mon i-
toring system => page 338.
Always buy replacement radial tires t hat have the same specifica -
tions as the tires approved for your vehicle by Audi. Replacement
tires must always have the same load rating specification as the
origina l equipment or approved optional t ires listed in the table
=> page 328.
Audi -approved specification tires are specially matched to your
vehicle and its load limits, and can contribute to the important road-
holding, driving characteristics, and safety of the vehicle . The table
(=> page 328) lists specificat ions of the tires approved for the Audi
models covered by your Owner's Literature .
The tire pressure labe l located either on driver's side 8-pil lar or
ins ide the fuel fi ll er flap( => page 328, fig. 273) li sts the specifica-
tions of the original equipment tires installed on your vehicle at the
t ime it was manufactured.
Federal law requires tire manufacturers to place standardized infor -
mation on the sidewa ll of all tires => page 336, f ig . 276. This informa -
tion identifies and describes the fundamental characteristics, the
quality grade of the tire and also provides a tire identification
number for saf ety standard cert ificat ion and in case of a recall.
T ir e s p ec ifi c at ion s
Knowledge of tire specifications
makes it easier to choose the
correct tires . Radial tires have the tire specifications
marked on the
sidewall, for example :
255/ 45 R 18 99 H
This contains the fo llowing information:
P
Indicates the tire is for passenger cars (where applicable)
25 5 Nominal tire width in mm of t he tire from sidewall edge to side -
wa ll edge. In general, the larger the number, the wider the tire
45 Height/width ratio in percent (aspect ratio)
R
Tire construction:
Radial
18 Rim diameter code (in inches)
99 Load rat ing code
H
Speed rat ing letter code
XL
(or "xi", "EXTRA LOAD" or "RF") indicates that the tire is a "Rein-
forced" or an "Extra Load" tire
M +S (or "M/S") Indicates tha t the tire has some mud and snow capa -
bility
The tires could also have the information of direction of rotation
=> page 324.
Vehicle care
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