Table of Contents
Advertisement
Tires
and wheels
27 7
Occupant loading and distribution for vehicle normal load fo r various designated seat ing
capaci t ies
Designated seating capacity,
Vehicle normal load , number
Occupant distribution in a nor-
number of occupants
of occupants
mally loaded vehicle
5/6*/7"
3
2 in front, 1 in second seat
Cold tire inflation pressure
Tire pressure affects the overall handling, performance and safety of a vehicle.
I
JJ
0
Fig. 24 9
Tire pressure labe l: located on driver's s ide B·
pillar
Tire pressure genera lly 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 kilopasca ls (kPa), the inte rna-
tional measur ing unit and in pounds per
square inch (PSI). Tire pressure is based in
part on the vehicle 's design and load limi t -
the greatest amount of weight that the vehi-
cle can carry safely and the t ire size. The prop-
er tire pressure is frequent ly referred to as the
"recommended cold tire inflation pressure."
Air in the tires expands when the tire heats up
because of internal friction when it flexes in
use. The tire pressure is higher when the tire
has warmed up than when it is "cold ."
It
is the
inflat ion pressure in a "cold " tire t hat counts.
Therefo re, you should never let air out of a
warm tire to match "cold t ire infla t ion pres-
sure" recommendations. The t ires wo uld then
be underinflated and could fail suddenly .
Maintaining proper t ire pressure is one of the
most impor t ant things you can do to help
avoid sudden t ire f ailure. Underinflated t ires
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,
-
t D
- -
--------------------..
,;
• ( = =.:
I :::; I :,,. I )@
gi
n. ............
.,_____, ....
-.ito._..
____
.
...
_
...
&..p0idit,101111-~--.,...,....--
.....
~
.... ..
-
· ·--
.....
- -
Dlst<:OURS
-
KP A..
a
PSI
-
KP A..
a
PSI
-
KPA..
a
PSI
Fig. 2 50 Tire pressu re labe l
traction, braking and load carrying. Tire pres-
sures are particularly importa nt when the
vehicle is being driven at higher speeds, and
th en especially when heavily load ed even
with in the permissible load-carrying capaci-
ties approved for your veh icle.
The recommended tire pressures for your Audi
depend on the kind of tires on your vehicle
and the numbe r of passengers and/o r amount
of luggage you w ill be transporti ng.
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 t he vehicle at its maxi m um capacity
weight and t ires that were on your veh icle at
t he time it was manufactu red.
If you wish to improve comfort wh en operat-
ing the vehicle at normal load (up to 3 occu-
pant s), you can adju st tire pressures to those
specified for normal vehi cle load . Before op-
erating the vehicle at maximum load , you
must increase the tire pressures to those
specified for maximum vehicle load
¢
& .
Bear in mind that the t ire pressure mon itor ing
system can only monitor the tire pressures
II>
Advertisement
Table of Contents
