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204
Tires and wheels
c::> f ig . 148 running across the tread. Depend-
ing on the make, there will be six to eight of
them evenly placed around the tire. Marks on
the tire sidewall (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn tires must be replaced .
Different figures may apply in other countries
c::> , & .
Tire pressure
Incorrect tire pressure causes premature wear
and can cause sudden tire blow-out . For this
reason, tire pressure must be checked at least
once a month
c::>
page
200.
Driving style
Driving fast around curves, heavy acceleration
and hard braking increase tire wear.
Rotating tires for more even wear
For all f our tires on your vehicle to have the
same service life, we recommend that the
front and rear tires are rotated according to
the tire manufacturer's suggested tire rota-
tion intervals. Please remember the follow-
ing:
- Tire rotation interva ls may differ from the
vehicle service intervals outlined in your
Warranty
&
Maintenance Booklet.
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points; therefore, we recommend that you
follow the tire manufacture r's suggested
t ire rotation intervals .
- Vehicles with front-wheel drive experience
more tread wear on the front wheels com-
pared to all-wheel drive (quatt ro® ).
- Please rotate t ires as shown
c::>
fig . 149.
- Extra care must be taken when rotating di-
rect ion-specific tires
c::>
page
226.
Wheel balancing
The whee ls on new vehicles are balanced.
However, vario us situations during everyday
driving can cause them to become unbal-
anced, resulting in vibrations you can usually
feel through the steering wheel.
Unbalanced wheels must be rebalanced to
avoid excessive wear on steering, suspension
and t ires. A whee l must also be rebalanced
when a new tire is installed.
Incorrect wheel alignment
Incorrect wheel alignment can cause exces-
sive tire wear, impairing the saf ety of the vehi-
cle. If tires show excessive wear, have the
whee l alignment checked by an authorized
Audi dealer or qualified workshop.
All Wheel Drive
Vehicles with quattro ® must always have tires
of the same size, construction and tread type .
For details see c::>page 154.
A
WARNING
-
Sudden tire fai lure can lead to loss of con-
trol, a crash and serious personal injury!
- Never drive a vehicle when the tread on
any tire is worn down to the wear indica-
tors.
- Worn tires are a safety hazard, they do
not grip well on wet roads and increase
your risk of "hydroplaning" and loss of
control.
- Always keep chemicals that can cause
tire damage, such as grease, oil, gasoline
and brake fluid away from tires.
- Tires age even if they are not being 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 w ith special care and at lower
speeds.
- Never mount used tires on your vehicle if
you are not sure of their "previo us histo-
ry." Old used tires may have been dam-
aged even though the damage cannot be
seen that can lead to sudden tire fai lure
and loss of vehicle control.
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