220 Tires and wheels
Because technical changes may
be made to vehicle equipment
during the model year, always
compare the tire size designa
tion on the tire pressure label
on your vehicle with the tires on
your vehicle. Make sure that the
tire size information on the ve hicle label is the same as the
size of the tires on the vehicle.
This is especially important if
the vehicle belongs to someone else or you bought the vehicle
with different rims/tires or you
bought the vehicle as a previ
ously owned vehicle.
Remember, your safety and
that of your passengers also de pends on making sure that load
limits are not exceeded . Vehicle
load includes everybody and ev
erything in and on the vehicle.
These load limits are technical
ly referred to as the vehicle's
Gross Vehicle Weight Rating
("GVWR"). The Gross Axle
Weight Rating ("GAWR") is the
maximum load that can be ap
plied at each of the vehicle's
two axles . The Gross Vehicle
Weight Rating and the Gross
Axle Weight Rating are listed on the safety compliance stick- er label located on the driver's
side B-pillar.
The tire pressure
label on your Audi lists the
maximum combined weight of
all of the occupants and lug
gage or other cargo that the ve
hicle can carry. For the location
of the tire pressure label
¢fig. 182.
&_ WARNING
-
Overloading a vehicle can
cause loss of vehicle control,
a crash or other accident, se rious personal injury, and
even death .
-Carrying more weight than
your vehicle was designed to carry will prevent the ve
hicle from handling properly
and increase the risk of a
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 causing loss of
control and a crash.
-Always make sure that the
total load being transported
- including the weight of a
M N
a! u.. co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
trailer hitch and the tongue
weight of a loaded trailer - does not make the vehicle heavier than the vehicle's
Gross Vehicle Weight Rat
ing.
A 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 failure, 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 driv
er's side 8-pillar.
The recommended tire pres
sures are on the tire pressure
label and in the table
Tires and wheels 221
¢ page 217, Cold tire inflation
pressure.
This means that the
pressure must be checked and
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 217.
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 217, fig. 182. .,.
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Tires and wheels 223
were on your vehicle at the changing a wheel or replacing •
time it was manufactured. For wheels you have to adjust the • '
recommended tire pressures tire pressures on all wheels. In
for normal load conditions, addition, you must then initial-
please see chapter ize the new tire pressures in the
9page 217. tire pressure monitoring sys-
-Turn the valve stem cap coun- tern*
9 page 239.
ter-clockwise to remove it
_&. WARNING
from the tire valve.
Incorrect tire pressures and/
-Place the air pressure gauge or underinflation can lead
on the valve. sudden tire failure, loss of
-The tire pressures should only control, collision, serious per-
be checked and adjusted when sonal injury or even death.
the tires are cold. The slightly -When the
[IJ warning sym-
raised pressures of warm tires bol appears in the instru-
must not be reduced. ment cluster, stop and in-
-Adjust the tire pressure to the spect the tires.
load you are carrying. -Incorrect tire pressure and/
-Reinstall the valve stem cap or underinflation can cause
on the valve. increased tire wear and can
When should I check the tire affect the handling of the
pressure? 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 starting a journey. ing loss of vehicle control.
When should I adjust the
-The driver is responsible for
the correct tire pressures for
tire pressures?
M all tires on the vehicle. The N
er Adjust the tire pressure to the u..
applicable pressure values ... co ,....,
load you are carrying. After \!) 1.1'1 ,...., 1.1'1 ,....,
226 Tires and wheels
The tire pressure label on your
Audi also lists the maximum
combined weight of all of the
occupants and luggage or other
cargo that the vehicle can carry. For the location of the label
¢page 217, fig. 182.
A WARNING
-
Overloading a vehicle can
cause loss of vehicle control,
a crash or other accident, se
rious personal injury, and
even death.
-Carrying more weight than your vehicle was designed to carry will prevent the ve
hicle from handling properly
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
- including the weight of a trailer hitch and the tongue
weight of a loaded trailer 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 vehi
cle's placard (tire inflation
pressure label)
¢page 217,
fig. 182.
2. Determine the combined
weight of the driver and pas
sengers that will be riding in
your vehicle.
...
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u..
co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
wear on steering, suspension and tires. A wheel must also be
rebalanced when a new tire is
installed.
Incorrect wheel alignment
Incorrect wheel alignment can
cause excessive tire wear, im
pairing the safety of the vehi
cle. If tires show excessive
wear, have the wheel alignment checked by an authorized Audi
dealer or qualified workshop.
All wheel drive
Vehicles with quattro must al
ways have tires of the same
size, construction and tread
type. For details see
¢page 176.
A WARNING
Sudden tire failure can lead
to loss of control, a crash and serious personal injury!
-Never drive a vehicle when the tread on any tire is worn down to the wear indica
tors.
-Worn tires are a safety haz
ard, they do not grip well on
wet roads and increase your risk of "hydroplaning" and
loss of control.
Tires and wheels 229
-Always keep chemicals that can cause tire damage, such
as grease, oil, gasoline and
brake fluid away from tires.
-Tires age even if they are not being used and can fail
suddenly, especially at high speeds. Tires that are more
than 6 years old can only be used in an emergency and
then with special care and
at lower speeds.
-Never mount used tires on your vehicle if you are not sure of their "previous histo
ry." Old used tires may have
been damaged even though
the damage cannot be seen
that can lead to sudden tire
failure and loss of vehicle
control.
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234 Tires and wheels
Maximum Permissible
Inflation Pressure
This number is the greatest
amount of air pressure that
should ever be put in the tire
under normal driving condi
tions.
.&_ WARNING
-Using incorrect or unmatch ed tires and/ or wheels or improper tire and wheel
combinations can lead to loss of control, collision and
serious personal injury.
-Always use tires, rims and wheel bolts that meet the
specifications of original
factory-installed tires or
other combinations that have been specifically ap
proved by the vehicle manu
facturer.
-Tires age even if they are
not being used and can fail
suddenly, especially at high
speeds. Tires that are more
than 6 years old can only be used in an emergency and
then with special care and
at lower speeds.
-Never mount used tires on your vehicle if you are not sure of their "previous
histo
ry." Old used tires may have
been damaged even though
the damage cannot be seen
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. ...
236 Tires and wheels
@ For the sake of the environment
Dispose of old tires in accord
ance with the local require
ment s.
Uniform tire quality grading
- Tread wear
- T raction
AA A B C
- T emperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shou lder
and max imum sect ion width
¢ page 230,
fig. 186.
For example: Tread wear 200, Tract ion AA ,
Temperature A.
All passenger car tires must conform to Feder
al Safety Requirements in addition to these
grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course .
For example, a tire graded 150 would wear
one and one half (1 1/2) times as well on the
government course as a tire graded 100.
The relat ive performance of t ires depends
upon the actua l conditions of their use, how
ever, and may depart significantly from the norm due to var iations in dr iving habits, serv
ice practices and differences in road character
istics and climate .
Traction
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades represent the
tire's abil ity to stop on wet pavement as
measured under controlled cond itions on
specified government test surfaces of asphalt
and concrete . A tire marked C may have poor
traction performance ¢&,. .
Temperature
The temperature grades are A (the highest),
B, and C, representing the tire's resistance to
the generation of heat and its ability to dissi
pate heat when tested under controlled condi
tions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the
material of the tire to degenerate and red uce
tire life, and excessive temperature can lead
to sudden tire failure
¢ &,..
The grade C corresponds to a level of perform
ance which all passenger car tires must meet
under the Federal Motor Vehicle Safety Stand
ard No. 109. Grades Band A represent higher
levels of performance on the laboratory test
wheel than the minimum required by law .
A WARNING
The traction grade assigned to this tire is
based on straight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplaning or peak traction
characteristics.
A WARNING
The temperature grade for this tire is es
tablished for a tire that is properly inflated
and not overloaded. Excessive speed, un
derinflation, or excessive loading, either
separately or in combination, can cause
heat buildup and possible tire failure.
Winter tires -
Winter tires can improve vehicle handling on
snow and ice . At temperatures below 45 °F
(7 °C) we recommend changing to winter
tires .
In some heavy snow areas, local governments
may require true winter or "snow" tires, those
with very deeply cut tread . These tires should
only be used in pairs and be installed on all
four wheels. Make sure you purchase snow
tires that are the same size and construction
type as the other tires on your vehicle. .,.
M N
er
u..
co ...... \!) 1.1'1
...... 1.1'1 ......
Your vehicle is equipped with all whee l drive,
this will improve traction during winter driv ing, even with the standard tires. However, we
strongly recommend that you a lways equip a ll
four wheels on your veh icle w ith correctly fit
ted wi nte r tires or all -season tires, when w in
ter road conditions are expected. This also im
p roves the vehicle 's braking performance and
reduces stopping distances.
Summer tires provide less grip on ice and
snow .
W inter tire s (snow t ires) must always be fitted
on all four wheels.
Ask your authorized Audi dea ler o r qualified
workshop for permitted
w inter t ire sizes. Use
only radia l winter tires .
Winte r ti res lose thei r effectiveness when the
tread is worn down to a depth of
0 .15 7 inch
(4 mm) .
On ly drive with winter tires under winter con
d itions. Summer tires hand le better when
there is no snow or ice on the roads and the
temperature is above
45 °F (7 °().
If yo u have a flat tire, see notes on repla ce
ment whee l¢ page 230 .
Pl ease always remembe r th at w inte r ti res may
have a lower speed rating tha n the t ires origi
n all y ins talled on your veh icle at the t ime i t
was manufactured . Please see ¢ page 232,
Speed rating (letter code) for a Listing of the
speed rat ing letter codes and the maximum
speed at wh ich the t ires can be driven .
The speed rating letter code( ¢ page
215) is
on the side wall of the tire ¢ page 230.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max
imum speed. Always know the maximum
speed befo re driving off . Never drive faster
than the speed permitted for your specific
w inte r tir es . This will cause damage to the
ti res leading to an ac cident and se rious
pe rsonal i njury to you and yo ur p assen
gers .
Tire s an d wheel s 237
A WARNING
Driving faster than the maximum speed
for which the winter tires on your ve hicle
were designed can cause t ire fail ure in
cluding a blowout and sudden deflation,
l oss of cont ro l, crashes and ser ious per
sona l injuries. Have wo rn or damaged ti res
replaced immedia tely.
- Wi nte r tires h ave maxim um speed ra ting
that may be lower than yo ur vehicle 's
maxim um speed.
- Never d rive fas ter than the speed for
whi ch the w inter or othe r ti res installed
on yo ur vehicle are rated.
A WARNING
=
A lways ad just yo ur driving to t he roa d and
traffic conditions. Never let the good ac
celeration o f the winter tires and a ll wheel
drive tempt you into taking extra risks. Al
ways remember:
- When braking, an all wheel drive vehicle handles in the same way as a front drive
veh icle.
- Drive carefully and reduce your speed on
icy and slippery roads, even w inter t ires
cannot help under black ice conditions.
@ For the sake of the environment
Use summer tires when weather condi
tions permit. They are qu ieter, do not wear
as quickly and reduce fuel consumpt ion.
Snow chains
-
Snow cha ins may be fitted only to the fro nt
whee ls, and on ly to certain tire sizes . Ask your
autho rized Aud i dea le r o n whi ch tire sizes
snow chains can be used.
The snow chains must have low-p rofile links
and must not be th icker than
0 .41 inch
(10 .5 mm) , in cl ud ing t he lo ck.
Remove wheel center covers and trim discs
before putt ing snow cha ins on your veh icle
¢ 0 . For safety reasons cover caps must then ..,.
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