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226
Tires
and wheels
Occupant loading and distribution for vehicle normal load for various designated seating
capacities
Designated seating capacity,
number of occupants
Vehicle normal load, number
Occupant distribution in a nor-
of occupants
_____
mally loaded vehicle
4
2
2 in front
Cold tire inflation pressure
Tire pressure affects the overall handling, performance and safe ty of a vehicle.
Fig. 185 Tire press ure labe l: locat ed on driver's side B·
pillar
Tire pressure generally refers to the amount
of air in a tire that it needs it to do its job and
safely carry the combined load of the entire
vehicle and its contents . Tire pressure is
measured in kilopascals (kPa), the interna·
tional measuring unit and in pounds per
square inch (PSI). Tire pressure is based in
part on the vehicle's design and load limit -
the greatest amount of weight that the vehi·
cle can carry safely and the t ire size. The prop·
er tire pressure is frequently referred to as the
"recommended cold tire inflation pressure."
Air in the tires expands when the tire heats up
because of internal frict ion when it flexes in
use. The t ire 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 tire to match "cold tir e infla t ion pres-
sure" recommendations. The tires wo uld then
be underinflated and could fail suddenly .
Maintaining proper tire pressure is one of the
most impo rta nt things you can do to hel p
avoid sudden tire failure. Underinflated tires
are a major cause of sudden tire failure. Keep·
ing tires at the right pressure is also impor-
tant for safe and responsive vehicle handling,
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Fig. 186
Tire pressure labe l
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traction, braking and load carrying. Tire pres-
sures are particularly important when the
vehicle is being driven at higher speeds, and
then especially when heavily loaded even
within the permissible load-carrying capaci-
ties approved for your vehicle.
The recommended tire pressures for your Audi
depend on the kind of tires on your veh icle
and the number of passengers and/or amount
of luggage you w ill be transporting.
The tire pressure label is located on the driv-
er's side B-pillar . The tire pressure label lists
the recommended cold t ire inflat ion pressures
for the vehicle at its maximum capacity
weight and tires that were on your veh icle at
the time it was manufactured .
If you wish to improve comfort when operat-
ing the vehicle at normal load (up to 2 occu-
pants), you can adjust tire pressures to those
specified for normal vehicle load. Before op-
erating the vehicle at maximum load, you
must increase the tire pressures to those
specified for maximum vehicle load
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Bear in mind that the tire pressure monitoring
system * can on ly mon itor the tire pressures
.,.
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