can be damaged and the wheel can be-
come loose.
@ Note
The spec ified torq ue fo r the wheel bo lts is
90 ft lb (120 Nm) wit h a tolerance of± 7,4
ft lb(± 10 Nm). Torque wheel bo lts diago-
nally. After chang ing a wheel, the torque
must be checked as soon as possib le wit h a
torque wrench - preferab ly by an author-
ized Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio t ires. These t ires have been thoroug hly
tes t ed and been selected spec ifica lly for your
model for the ir superb pe rformance, road feel
and handling under a variety of driving condi-
tions . Ask your a uthorized Audi dea le r for
more deta ils.
The low aspect ratio of these tires is indica t ed
by a numeral of
55 or less in the tire's size
designation. The numeral represents the ratio
of the tire's sidewall height in relat ion 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 ti res is
part icularly sensitive to improper inflation
pressure. It is therefore important that low
aspect ratio tire s are inflat ed to the specified
pressure and that the inflation pressure is
regularly checked and maintained. Tire pres-
sures should be checked at least once a
month and always before a long trip
<=> page 204, Checking tire pressure.
What you can do to avoid tire and rim
damage
Low aspec t ratio t ires can be damaged more
eas ily by impact with potho les, cu rbs, gu llies
or ridges on the road, part icu larly if the ti re is
underinflated .
In o rder t o m inimi ze the occu rrence of impact
damage to the t ires of your vehicle, we recom -
Tire s an d wheel s 215
mend that you observe the following preca u-
tions:
- Always ma int ai n recomme nded inflation
pressu res . Check your tire pressu re eve ry
2,000 miles (3,000 km) and add air if neces -
sary.
- Drive ca refu lly on roads with potholes, deep
gullies o r 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, immed iate ly inspect your
tires or have them inspected by the nearest
author ized Audi dealer. Replace a damaged
tire as soon as possible .
- Inspect your tires every 2,000 m iles (3,000
km) for damage and wear. Damage is not al-
ways easy to see . Damage can lead to loss of
air a nd under inflat ion, which could eventu-
ally cause tire failure .
If you believe that a
t ire may have been damaged, rep lace the
tire as soon as possib le .
- These tires may wear more quickly tha n oth-
ers.
- Please also remember that, while these tires
de liver responsive handling, t hey may ride
less com fo rtably and m a ke more noise than
other choi ces .
Reduced performance in winter / cold
season conditions
All ti res are designed for certa in purposes.
The low aspect ratio , ult ra high performance
ti res originally installed on your vehicle are in-
tended for maxim um dry and wet road per-
formance and handling. They are not suitable
for cold , snowy or icy weather conditions. If
you drive under those circumstances, you
shou ld equ ip your vehicle w it h all -season or
winter tires, which offer bette r t raction under
those conditions. We suggest you use the rec-
ommended snow or all-season t ires specified
for your vehicle , or t hei r e quivalent .
Refer to <=>
page 213 fo r more detailed infor-
mation regard ing winter tires .
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