heavier than the vehicle's
Gross Vehicle Weight Rat
ing.
& WARNING
-Incorrect tire pressures and/or underinflation can lead to a serious or fatal ac
cident.
-Incorrect tire pressures and/or underinflation cause increased tire wear and can
affect the handling of the
vehicle.
-Incorrect tire pressures and/or underinflation can
also lead to sudden tire fail
ure, including a blowout
and sudden deflation, caus ing loss of vehicle control.
Checking tire pressure
The correct tire pressure for the
tires originally installed on
your vehicle is listed on the tire
pressure label located on driver's side 8-pillar.
The recommended tire pressures are on the tire pressure
label and in the table
¢ page 233, Cold tire inflation
pressure .
This means that the
pressure must be checked and
Tires and wheels 237
adjusted when the tire has not been driven for more than a
couple of miles (kilometers) at low speeds during the previous
three hours. Air in the tires ex pands when the tire heats up as
a result of internal friction 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. There
fore, you should never let air out of a warm tire to match
"Cold tire inflation pressure"
recommendations ¢
page 233.
The tires would then be under
inflated and could fail sudden
ly.
The tire pressure label on your
Audi lists the recommended cold tire inflation pressures at maximum capacity for the new,
original equipment tires that
were on your vehicle at the time
it was manufactured . For the
location of the label
¢ page 233, fig . 195.
Most tires lose air naturally
over time. They can also lose
some air if you drive over a
•
•
'
238 Tires and wheels
pothole or hit a curb while park
ing. It is usually not possible to
see whether the radial tires
used today are underinflated
just by looking at them.
Therefore, be sure to check tire
pressures at least once a month
and always before going on a
long trip. Make sure to take the
number of people and the
amount of luggage into ac
count when adjusting tire pres
sure for a trip -even one that
you would not consider to be "long ." See ¢
page 240, 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
air out of the t ire slowly with
the edge of the tire gauge and keep checking the pressure un
til you reach the pressure that is correct for the load (passen
gers and luggage) and kind of
driving you plan to do .
If the pressure in any tire is too
low, note the difference be- tween the pressure
in the cold
tire and the pressure you need
and add the 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 manual and the kind of driving you plan
to do.
Never exceed the maximum in
flation pressure listed on the
tire sidewall for any reason.
Remember that the vehicle
manufacturer , not the tire man
ufacturer, determines the cor
rect tire pressure for the tires
on your vehicle.
It is important to check the tire
pressure when the tires are
cold .
-Read the required tire pres sure from the tire pressure la
bel. The tire pressure label is
located on the driver's side 8-
pillar.
-Turn the valve stem cap coun ter -clockwise to remove it
from the tire valve.
-Place the air pressure gauge on the valve .
Tires and wheels 239
-The tire pressures should only sudden tire failure, loss of •
be checked and adjusted when control, collision, serious per-• '
the tires are cold. The slightly
sonal injury or even death.
raised pressures of warm tires -When the warning symbol
must not be reduced.
[I] appears in the instru-
-Adjust the tire pressure to the ment cluster, stop and in-
load you are carrying. spect the tires.
-Reinstall the valve stem cap -Incorrect tire pressure and/
on the valve. or underinflation can cause
When should I check the tire increased tire wear and can
pressure? affect the handling of the
vehicle and stopping ability.
The correct tire pressure is es -
-Incorrect tire pressures
pecially important at high
and/or underinflation can
speeds. The pressure should
also lead to sudden tire fail-
therefore be checked at least
ure, including a blowout
once a month and always be-
and sudden deflation, caus-
fore start ing a journey.
ing loss of vehicle control.
When should I adjust the -The driver is responsible for
ti re pressures?
the correct tire pressures for
Adjust the tire pressure to the all tires on the vehicle. The
load you are carrying. After applicable pressure values
changing a wheel
or replacing are located on a sticker on
wheels you have to adjust the the driver's side B-pillar.
tire pressures on all wheels. In -Only when all tires on the
addition, you must then store vehicle are filled to the cor-
the new tire pressures in the rect pressure, the tire pres-
tire pressure monitoring sys- sure monitoring system can
tern¢
page 255. work correctly.
A WARNING -The use of incorrect tire
pressure values can lead to
M
Incorrect tire pressures and/ N
0::
accidents or other damage. <.J
or underinflation can lead 'SI: ....
Therefore it is essential that ~ \!) 1.1'1
.... 1.1'1 ....
240 Tires and wheels
the driver observe the speci
fied tire pressure values for
the tires and the correct pressures for the function of
the tire pressure monitoring
system.
-Always inflate tires to the
recommended and correct
tire pressure before driving
off.
-Driving with underinflated tires bend more, letting
them get too hot resulting
in tread separation, sudden
tire failure and loss of con
trol.
-Excessive speed and/over
loading can cause heat
build-up, sudden tire failure
and loss of control.
-If the tire pressure is too low or too high, the tires
will wear prematurely and
the vehicle will not handle
well.
-If the tire is not flat and you do not have to change a
wheel immediately, drive at reduced speed to the near
est service station to check
the tire pressure and add air
as required.
(D Note
Driving without valve stem
caps can cause damage to
the tire valves. To prevent
this, always make sure that
factory installed valve stem
caps on all wheels are securely mounted on the valve.
@ For the sake of the environment
Underinflated tires will also
increase the fuel consump
tion.
Tires and vehicle load limits
There are limits to the amount
of load or weight that any vehi
cle and any tire can carry. Ave hicle that is overloaded will not
handle well and is more diffi
cult to stop. Overloading can
not only lead to loss of vehicle
control, but can also damage
important parts of the vehicle
and can lead to sudden tire fail
ure, including a blowout and
sudden deflation that can cause
the vehicle to crash.
Your safety and that of your passengers also depends on
making sure that load limits are~
242 Tires and wheels
and increase the risk of the
loss of vehicle control.
-The brakes on a vehicle that
has been overloaded may
not be able to stop the vehi
cle within a safe distance.
-Tires on a vehicle that has
been overloaded can fail
suddenly, including a blow
out and sudden deflation,
causing loss of control and a
crash.
-Always make sure that the total load being transported
does not make the vehicle
heavier than the vehicle's
Gross Vehicle Weight Rat
ing.
Determining correct load
limit
Use the example below to cal
culate the total weight of the
passengers and luggage or oth
er things that you plan to trans
port so that you can make sure
that your vehicle will not be overloaded.
Steps for Determining
Correct Load Limit
1. Locate the statement "THE
COMBINED WEIGHT OF OC- CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX
KG OR XXX LBS" on your ve
hicle's placard (tire inflation
pressure label)
~ page 233,
fig. 195.
2. Determine the combined
weight of the driver and pas
sengers that will be riding in
your vehicle.
3. Subtract the combined
weight of the driver and pas
sengers from
"XXX" kilo
grams or
"XXX" pounds
shown on the sticker
¢ page 233, fig. 195.
4. The resulting figure equals
the available amount of car go and luggage load capaci
ty. For example, if the
"XXX"
amount equals 1400 lbs.
and there will be five 150
lbs. passengers in your vehi
cle, the amount of available
cargo and luggage load ca
pacity is 650 lbs. (1400-750
(5
X 150) = 650 lbs.)
5. Determine the combined weight of luggage and cargo being loaded on the vehicle.
That weight may not safely
exceed the available cargo .,.
246 Tires and whee ls
No . Desc ription
® Load index and s peed rat-
ing
(J) U.S . DOT tire identifica-
tion number
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and materials used
@ Maximum load rating
@ Treadwear, traction and
temperature grades
@ Maximum permissible in-
flation pressure
The tires and rims are essential parts of the vehicle's design .
The tires and rims approved by
Audi are specially matched to
the characteristics of the vehi
cle and can make a major con
tribution to good road holding and safe handling when in good
condition and properly inflated
c::> ,&. .
We recommend that all work
on tires and wheels be per
formed by an authorized Audi dealer. They are familiar with
recommended p rocedures and
have the necessary special too ls
and spare parts as well as the proper facilities for disposing of
the old ti res.
Autho rized Audi dealers have
the necessary information
about technical requirements
for installing or changing tires
and rims .
Replacing tires and wheels
Tires sho uld be replaced at
least in pairs and not individu
ally (for example both front
tires or both rear tires togeth
er).
B e sure to read and heed the in
formation to the tire pressure
monitoring system
c::> page 255.
Always buy replacement radial
tires that have the same specifi
cations as the tires approved
for your vehicle by Audi. Re
placement tires must always
have the same load rating spec
ification as the original equip
ment or approved optional tires
listed in the table
c::>page 233.
Audi -app roved spec ificat io n
tires are specially matched to
your vehicle and its load limits ,
and can contribute to the im- portant roadholding, driving .,.
Tires and wheels 249
safety and driving characteris- should ever be put in the tire •
tics when used correctly. Your under normal driving condi-• '
authorized Audi dealer will tions.
gladly provide you with more
A WARNING
information.
-Using incorrect or unmatch-
Tire ply composition and ed tires and / or wheels or
materials used improper tire and wheel
The number of plies indicates combinations can lead to
the number of layers of rubber- loss of control, collision and coated fabric in the tire. In gen- serious personal injury.
eral, the greater the number of -Always use tires, rims and
plies, the more weight a tire wheel bolts that meet the
can support. Tire manufactur- specifications of original
ers also must indicate the ma-
factory-installed tires or
terials in the tire, which include other combinations that
steel, nylon, polyester, and oth- have been specifically ap-
ers. proved by the vehicle manu-
Maximum Load Rating
facturer.
-Tires age even if they are
This number indicates the max- not being used and can fail
imum load in kilograms and suddenly, especially at high
pounds that can be carried by speeds. Tires that are more
the tire. than 6 years old can only be
Tire quality grading for used in an emergency and
treadwear, traction, and then with special care and
temperature resistance at lower speeds.
Tread wear, traction and tern- -Never mount used tires on
perature grades¢
page 251. your vehicle if you are not
Maximum Permissible
sure of their "previous histo-
Inflation Pressure ry." Old used tires may have
M been damaged even though N
0:: This number is the greatest <.J
the damage cannot be seen .... 'SI: ,....,
amount of air pressure that \!) 1.1'1 ,...., 1.1'1 ,....,
250 Tires and wheels
that can lead to sudden tire
failure and loss of vehicle
control.
-All four wheels must be fit ted with radial tires of the
same type, size (rolling cir
cumference) and the same
tread pattern. Driving with
different tires reduces vehi
cle handling and can lead to
a loss of control.
-If the replacement tire is
not the same as the tires
that are mounted on the ve hicle -for example with win
ter tires -only use the re
placement tire for a short
period of time and drive
with extra care. Refit the
normal road wheel as soon
as safely possible.
-Never drive faster than the
maximum speed for which
the tires on your vehicle are rated because tires that are
driven faster than their rat
ed speed can fail suddenly.
-Overloading tires cause heat build-up, sudden tire fail
ure, including a blowout
and sudden deflation and
loss of control. -Temperature
grades apply
to tires that are properly in
flated and not over or un derinflated .
-For technical reasons it is not always possible to use
wheels from other vehicles -
in some cases not even
wheels from the same vehi
cle model.
-If you install wheel trim
discs on the vehicle wheels,
make sure that the air flow
to the brakes is not blocked .
Reduced airflow to the
brakes can them to over
heat, increasing stopping
distances and causing a col
lision.
-Run flat tires may only be used on vehicles that were
equipped with them at the
factory. The vehicle must
have a chassis designed for
run flat tires . Incorrect use
of run flat tires can lead to
vehicle damage or acci
dents. Check with an au
thorized Audi dealer or tire
specialist to see if your vehi
cle can be equipped with
run flat tires. If run flat tires .,.