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T i re s and w h ee l s
Tire ply composit ion and materi als used
The numbe r of plies ind icates the number of
layers of rubber -coated fabric in the tire. In
general, the greater the number of plies, the
more weight a tire can support . Tire manufac-
turers also must indicate the materials in the
tire, wh ich include steel, nylon, polyester, and
others .
Maximum Load Rating
This number indicates the maximum load in
kilograms and pounds that can be carried by
the tire .
Tire quality grading for treadw ear,
tr action, and temperature resistan ce
Tread wear, traction and temperature
grades
c:> page249.
Maximum Permissible Inflation Pressure
This numbe r is t he greatest amo unt of air
pressure that should ever be put in the ti re
under normal driving conditions .
A
WARNING
- Using incorrect or unmatched tires and/
or wheels or improper tire and wheel
combinations can lead to loss of contro l,
collision and serious persona l injury .
- Always use tires, rims and wheel bo lts
that meet the specifications of orig inal
factory-installed
t ires or other combina-
t ions that have been spec ifically ap-
proved by the vehicle manufacturer.
- Tires age even if they are not be ing used
and can fail suddenly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then with special care and at lower
speeds.
- Never mount used ti res on your vehicle if
you are not su re of their "previous histo-
ry." Old used tires may have been dam-
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
- All four wheels must be fitted with radia l
t ires of the same type, size (roll ing cir-
cumference) and the same tread pattern .
Driving with different tires reduces vehi-
cle handling and can lead to a loss of
control.
- If the spare tire is not the same as the
tires that are mounted on the vehicle -
for example with winter tires - only use
the spare t ire fo r a short period of time
and drive with extra care . Refit the nor-
mal road wheel as soon as safely poss i-
ble.
- Never drive faster than the max imum
speed for which the tires on you r vehicle
are rated because t ires that are dr iven
faster than their rated speed can fai l
suddenly .
- Overloading tires cause heat build-up,
sudden tire fa ilure, including a blowout
and sudden deflation and loss of contro l.
- Temperature grades apply to tires that
are properly inflated and not over or un-
derinf lated .
- For technica l reasons it is not always
possible to use whee ls from other
veh icles - in some cases not even wheels
from the same veh icle model.
- If you install wheel trim discs on the ve-
hicle wheels, make sure that the a ir flow
to the brakes is not blocked. Reduced air-
f low to the brakes can them to overheat,
increas ing stopp ing distances and caus-
ing a collision.
- Run flat tires may only be used on
veh icles that were equipped with them
at the factory. The veh icle must have a
chassis designed for run flat tires and a
factory -insta lled tire pressure monitor-
ing system* that indicates a loss of tire
pressu re . Incorrect use of run flat tires
can lead to vehicle damage or accidents.
Check with an authorized Audi dealer or
tire specialist to see if your vehicle can be
equ ipped with run flat t ires. If run flat
tires are used, they must be installed on
all fou r wheels . Mixing tire types is not
pe rm itted.
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