Audi A8 2008 Owner's Manual page 341

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T _i _ r_ e_ s _ a_ n _d _ w _ h _ e_ e _l_ s __
l'III
The batt ery inside of the tire pressure sensor has a limited
serv ice life.
Al ways drive with the va lve stem ca ps sec ure ly m o unted. We
reco m mend usin g f actor y in sta ll ed v alve stem ca ps. Ask you r autho-
rized Audi dealer to replac e lost valve stem caps .
The installa t io n of replacement ti res w it h steel cord body pl ies in
th e tire sid ewal l may cause malfunct ion of the tire pressure moni -
toring syste m, and is not recommended (cord m ate ria l infor m ation
i n mo lde d o n t he t ire sidewa ll).
Al ways check your tir e pressure monitor ing system indicator after
replac in g on e or m o re tire s on y o ur v ehi cle. If the tir e pressu re
monitorin g system indicator flashes, or is on, your system is not
w orki ng pr o pe rly . You r replace m ent t ir e mi g ht be in co m pati ble w ith
your t ire pr essure monitoring
system, or some component of the
t ire pr ess ur e mo ni to ri ng sys t em m ay be damaged .
&
WARNING
Using incorrect or unmatched tires and / or wheels or improper
tire and wheel combinations
can lead to loss of control , collision
and serious personal injury .
Always use tires , rims and wheel bolts that meet the specifica-
tions of original factory -installed tires or other combinations
that
have been specifically approved by the vehi cle manufacturer .
Tires age even if they are not being used and can fail suddenly,
espe cially 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 tires on your vehicle if you are not sure of
their " previous history ." Old used tires may have been damaged
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 radial tires of the same type ,
size (rolling cir cumference ) and the same tread pattern . Driving
&,
WARNING (continued )
with different tires reduces vehicle 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
tire for a short period of time and drive with extra care . Refit the
normal road wheel as soon as safely possible.
Never drive faster than the maximum speed for which the tires
on your vehicle are rated because tires that are driven faster than
their rated speed can fail suddenly.
Overloading tires cause heat build -up , sudden tire failure,
including a blowout and sudden deflation and loss of control.
Temperature grades apply to tires that are properly inflated and
not over or underinflated.
For techni cal reasons it is not always possible to use wheels
from other vehicles - in some cases not even wheels from the
same vehicle model.
If you install wheel trim discs on the vehicle wheels , make sure
that the air flow to the brakes is not blocked . Reduced airflow to
the brakes can them to overheat , increasing stopping distances
and causing a collision.
Run flat tires may only be used on vehicles that were equipped
with them at the factory . The vehicle must have a chassis designed
for run flat tires and a factory-installed
tire pressure monitoring
system that indicates a loss of tire pressure. 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 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.
0
Note
Fo r tec h nica l reaso ns, it is not gene ra lly po ssibl e to use th e
whee l rims from other vehicles . This can hold true for wheels of t he
sam e vehicl e typ e.
Vehicle care

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