200 Tires and wheels
conditions. Ask your authorized Audi dea ler
for more details.
The low aspect ratio of these tires is indicated
by a numeral of 55 or less in the tire's size
designation. The numera l represents the ratio
of the tire's sidewall height in relation to its
tread width expressed in percentage. Conven
tional tires have a height/width ratio of 60 or
more.
The performance of low-aspect -ratio tires is
particularly sensitive to improper inflation
pressure. It is therefore important that low
aspect ratio tires are inflated to the specified
pressure and that the inflation pressure is reg
ularly checked and maintai ned. Tire pressures
should be checked at least once a month and
a lways befo re a long t rip
~ page 189, Check
ing tire pressure.
What you can do to avoid tire and rim
damage
L ow aspect ratio tires can be damaged more
eas ily by impact with potholes, curbs, gullies
o r ridge5 on the road, particu larly if the tire i5
underinflated.
I n order to minimize the occurrence of impact
damage to the tires of your vehicle, we recom
mend that you observe the following precau
tions:
- Always maintain recommended inflation
pressures. Check your tire pressure every
2.000 miles (3.000 km) and add air if neces
sary .
- Drive carefully on roads with potholes, deep
gullies or ridges. The impact from driving
through or over such obstacles can damage
your tires. Impact with a curb may also cause damage to your tires.
- After any impact, immediately inspect your
tires or have them inspected by the nearest
authori zed Aud i dealer. Rep lace a damaged
t ir e as soon as possible.
- Inspect your tires every 2.000 miles (3.000 km) for damage and wear . Damage is not al
ways easy to see. Damage can lead to loss of
air and underinflation, wh ich could eventu
ally cause t ire failure . If you believe that a tire
may have been damaged, rep lace the
tire as soon as possible.
- These tires may wear more quickly than oth
ers.
- Please also remember that, while these tires
delive r responsive handling, they may ride
less comfortably and make more noise than
other choices .
Reduced performance in winter/cold
season conditions
All tires are designed for certain purposes.
The low aspect ratio, ultra high performance
t ir es or iginally installed on your vehicle are in
tended for maximum dry and wet road per
formance and handling . T hey are not suitable
for cold, snowy or icy weather conditions . If
you drive under those c ircumstances, you
should equ ip your vehicle with winter tires,
which offer better traction under those condi
tions . We suggest yo u use the recommended
snow tires specified for your vehicle, or their
equivalent.
Refer to~
poge 197 for more detailed infor
mation regarding winter tires.
Ti re pressure
monitoring system
General notes
Eac h tire, including the spare (if provided),
shou ld be checked mon thly when cold and in
flated to the inflat ion pressure recommended
by the ve hicle manufacturer on the vehicle
placard or tire inflation pressure labe l (If your
vehicle has tires of a different si ze than the
s ize indicated on the vehicle placard or tire in
flat ion pressure label, you should determine
the proper t ire in flation pressure for those
t ir es .) .
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illum inates a low tire
pressure telltale when one or more of your
tires is significantly under-inflated. Acco rding
ly, when the low tire pressure telltale illumi
nates, you shou ld stop and check you r tires as
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