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A
WARNING
- Incorrect tire pressures and/or underin-
flation can lead to a serious or fatal acci-
dent .
- Incorrect tire pressures and/or underin-
flation cause increased tire wear and can
affect the handling of the vehicle.
- Incorrect tire pressures and/or underin-
flation can also lead to sudden tire fa il-
ure, including a blowout and sudden de-
flation, causing loss of vehicle control.
Checking tire pressure
The correct tire pressure for the tires original -
ly installed on your vehicle is listed on the tire
pressure label located on driver's side 8-pil-
lar.
The recommended t ire pressures are on the
tire pressure labe l and in the tab le
¢ page 193, Cold tire inflation pressure .
This
means that the pressure must be checked and
adj usted when the tire has not been driven for
more than a couple of m iles (kilometers) at
low speeds during the previous three hours.
Air in the tires expands when the tire heats up
as a result of internal fr iction as it flexes in
use. The tire pressure is higher when the tire
has warmed up than when it is "cold".
It is the inflation pressure in a "cold" tire that
counts. Therefore, you should never let air out
of a warm t ire to match "Cold tire inflation
pressure" recommendations
¢ page 193.
The
tires would then be under inflated and could
fa il suddenly.
The tire pressure label on your Audi lists the
recommended cold t ire inflat ion pressures for
the new, or iginal equipment tires that were
on you r vehicle at the t ime it was manufac-
tured. For the location of the label
¢page 193, fig. 149.
Most tires lose a ir naturally over time. They
can also lose some a ir if you dr ive over a pot-
hole or hit a curb while pa rking. It is usua lly
not possib le to see whether the radia l t ires
Tire s an d wheel s
195
used today are underinflated just by looking
at them .
The refore, be su re t o check t ire press ures at
least once a month and a lways befo re going
on a long trip . Make sure to take the number
of peop le and the amount of luggage into ac-
count when adjusting tire pressure for a trip -
even one that you wou ld not consider to be
"long". See
¢
page 196, Tires and vehicle
load limits
for more important information .
Always use an accurate tire pressure gauge
when checking and adjusting inflation pres-
sures. Check all of the tires. If the pressure in
any tire is too high when the tire is "cold", let
a ir out of the tire slowly with the edge of the
tire gauge and keep checking the pressure un-
ti l you reach the pressure that is correct fo r
the load (passenge rs and luggage) and kind of
driving you plan to do .
If
the pressure in any tire is too low, note the
difference between the pressure in the cold
t ire and the pressure you need and add t he air
that you need to reach the correct pressure for
the vehicle load (passengers and luggage) for
the tires on your vehicle as listed on the on
your vehicle and in this man ua l and the kind
of driving you plan to do .
Never exceed the maximum infl ation pres-
sure listed on the tire side wall fo r any rea-
son .
Remember that the vehicle manufacturer, not
the tire manufact urer, determines the cor rect
tire press ure for the tires on your vehicle.
It is important to check the t ire press ure when
the tires are cold .
- Read the required tire pressure from the t ire
p ressure labe l located on drive r's side B-pil-
lar.
- Turn the valve stem cap counter-clockw ise
to remove it from the t ire valve.
- Place the a ir pressure gauge on the va lve .
- The tire pressures should only be checked
and adj usted when the tires are cold . The
slightly raised pressures of warm tires must
not be reduced.
.,.
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