Table of Contents
Advertisement
236
T i re s and w h ee l s
vehicle handling and can lead to a loss of
control.
- If the replacement tire is not the same as
the tires that are mounted on the vehicle
- for example with winter tires - only use
the replacement t ire for a short period of
t ime and dr ive with extra care . Refit the
normal road wheel as soon as safely pos-
sible.
- Never drive faste r than the maximum
speed for which the tires on your veh icle
are rated because ti res that are driven
faster t han their rated speed can fail
sudden ly.
- Overloading t ires cause heat build-up,
sudden tire failure, including a blowo ut
and sudden deflation and loss of control.
- Temperature grades app ly to tires that
are properly inflated and not over or un-
derinflated.
- For technical reasons it is not a lways
possible to use wheels from othe r
vehicles - in some cases not even wheels
from the same vehicle model.
- If you install wheel trim discs on the ve-
hicle whee ls, make sure that the air f low
to the brakes is not blocked . Reduced air-
flow to the brakes can them to overheat,
increasing stopping distances and caus-
ing a collision .
- Run flat tires may only be used on
vehicles that were equipped w ith them
at the factory . The vehicle must have a
chassis des igned for run flat t ires and a
factory-installed
t ire pressure monitor-
ing system* that indicates a loss of ti re
pressure. Incorrec t use of run flat tires
can lead to vehicle damage or accidents .
Check with an authorized Audi dea ler or
tire spec ialist to see if your vehicle can be
equipped with run flat tires . If run flat
tires are used, they must be installed on
all four wheels. Mixing tire types is not
permitted .
(D
Note
- For technica l reasons, it is not genera lly
possible to use the wheel rims from oth-
er vehicles. This can hold true for wheels
of the same vehicle type.
- If a rep lacement tire is different from
the tires that you have mounted on your
vehicle (for example winter tires or wide
profile tires), then use the rep lacement
tire for a short period of time only and
dr ive with extra care. Replace the flat tire
w ith the tire match ing the others on your
vehicle as soon as possible.
- Never drive without the valve stem cap .
The valves could get damaged .
®
For the sake of the environment
Dispose of old tires in accordance with the
local requirements .
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Tempe rature ABC
Quality grades can be found where applicab le
on the t ire side wall between tread shoulder
and maximum section width
c>
page 233,
fig.
189 .
For exampl e:
Tread wear
2 0 0 ,
Traction
AA,
Temperature
A.
All passenger car t ires must conform to Feder-
al Safety Requirements in addition to these
grades.
Tread wear
The
tread wear
grade is a comparative rating
based on the wear rate of the t ire when t ested
under controlled conditions on a specified
government test course .
For example, a tire graded 1S0 would wear
one and one ha lf (11/2) times as well on the
gover nment course as a t ire graded 100 .
The relative performance of tires depends
upon the actual conditions of their use, how-
ever, and may depa rt s ignificantly from the
norm due to variat ions in d riving hab its, serv-
ice practices and differences in road character-
istics and climate.
ll-
Advertisement
Table of Contents
