282 Tires and wheels
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. 250.
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 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
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 ser ious 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 driv
er's side 8-pillar.
The recommended tire pres
sures are on the tire pressure
label and in the table
c;, page 2 78, Cold tire inflation
pressure.This
means that the
pressure must be checked and
adjusted when the tire has not .,.
284 Tires and whee ls
If the pressure in any tire is too were on your vehicle at the
low, note the difference be- time it was manufactured . For
tween the pressure in the cold recommended tire pressures
tire and the pressure you need for normal load conditions, and add the air that you need to please see chapter
reach the correct pressure for
¢ page 278 .
the vehicle load (passengers
-Turn the valve stem cap coun-
and luggage) for the tires on ter-clockwise to remove it
your veh icle as listed on the on
from the tire valve.
your veh icle and in this manual
-Place the air pressure gauge
and the kind of driving you p lan
on the valve.
to do .
-The tire pressures should only
Never e xceed the maximum in -be checked and adjusted when
flation pressure listed on the the tires are cold . The slightly
ti re sidewall for any reason. raised pressures of warm tires
must not be reduced .
Remember that the vehicle
-Adjust the tire pressure to the
manufacturer, not the t ire man-
load you are carrying .
ufacturer, determines the car- -Reinstall the valve stem cap
rect t ire pressure for the tires
on the valve.
on your vehicle.
It is important to check the tire
When should I check the tire
pressure?
p ressure when the tires are
cold . The correct tire pressure is es-
-Read the required tire pres- pecially important at
high
speeds . The pressure should
sure from the tire pressure la- therefore be checked at least
bel. The tire pressure label is once a month and always be-
located on the driver's side B -
fore starting a journey . Do not
pi llar . The tire pressure label
forget to check the tire pres -
lists the recommended co ld
sure for the spare wheel.
..
tire inflation pressures for the
vehicle at its max imum capaci-
ty weight and the tires that
286 Tires and wheels
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 secure
ly 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
not exceeded. Vehicle load in
cludes everybody and every
thing in and on the vehicle.
These load limits are technical
ly referred to as the vehicle's
Gross Vehicle Weight Rating
("GVWR") .
The "GVWR " includes the
weight of the basic vehicle, all
factory installed accessories, a
full tank of fuel, oil, coolant
and other fluids plus maximum load. The maximum load in
cludes the number of passen
gers that the vehicle is intend
ed to carry ("seating capacity")
with an assumed weight of 150 lbs (68 kg) for each pas
senger at a designated seating
position and the total weight of
any luggage in the vehicle. If ""
Tires and wheels 287
you tow a trailer, the weight of the total weight of whatever is •
the trailer hitch and the tongue being carried in the vehicle (in-• '
weight of the loaded trailer eluding the weight of a trailer must be included as part of the hitch and the tongue weight of
vehicle load. the loaded trailer) is limited.
The
Gross Axle Weight Rating The more passengers in the ve- hicle or passengers who are
("GAWR") is the maximum load
that can be applied at each of heavier than the standard
weights assumed mean that
the vehicle's two axles.
The Gross Vehicle Weight Rat- less weight can be carried as
luggage
.
ing and the Gross Axle Weight
The tire pressure label on your
Rating are listed on the safety
Audi also lists the maximum
compliance sticker label locat-
ed on the driver's side B-pillar. combined weight of all of the
Your Audi has 5 seating posi- occupants and luggage or other
cargo that the vehicle can carry.
tions, 2 in the front and 3 in the
rear for total seating capacity For the location of the label
¢
page 278, fig. 250. of 5. On vehicles with six
seats* , your vehicle has two
A WARNING
-~
front seats, two seats in the
Overloading a vehicle can
second row seating and two cause loss of vehicle control,
seats in the third row seating. a crash or other accident, se-
On vehicles with seven seats*, rious personal injury, and
your vehicle has two front even death.
seats, three seats in the second -Carrying more weight than
row seating and two seats in your vehicle was designed
the third row seating . Each
to carry will prevent the ve-
seating position has a seat belt hicle from handling properly
¢ page 173, Safety belts . and increase the risk of the
The fact that there is an upper loss of vehicle control.
M N limit to your vehicle's Gross Ve-0 ...J
'SI:
hicle Weight Rating means that ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
288 Tires and whee ls
- 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 WEIGH T OF OC
CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX KG OR XXX LBS"on your vehi
cle's placard (tire inflation
pressure label)
~ page 2 78,
fig . 250 .
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 278, fig. 250.
4. The resulting figure equals
the available amount of cargo 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 .,..
M
"' 0 ..J
""'. rl I.O
"' rl
"' rl
being loaded on the vehicle.
That weight may not safely
exceed the available cargo and luggage load capacity
calculated in Step 4.
6. If your vehicle will be towing
a trailer, load from your trail
er will be transferred to your
vehicle. Consult this manual
to determine how this re
duces the available cargo
and luggage load capacity of
your vehicle.
.,.Check the tire sidewall
(¢ page 291, fig. 254) to de
termine the designated load rating for a specific tire.
Tire service life
The service life of tires depends
on a lot of different things in
cluding proper installation and
balancing, correct tire pressure and driving style .
Fig. 252 Tire tread: tread wear indi
cators (TWI)
Tires and wheels 289
.... N M ::;;
;g
Fig. 253 Rotating tires for more even
wear
Tread Wear Indicator (TWI)
The original tires on your vehi
cle have
1/16 inch (1.6 mm)
high "wear indicators"
¢ fig. 252 running across the
tread. Depending on the make,
there will be six to eight of
them evenly placed around the
tire. Marks on the tire sidewall (for example "TWI" or other
symbols) indicate the positions
of the tread wear indicators.
Worn tires must be replaced.
Different figures may apply in
other countries
¢ & .
Tire pressure
Incorrect tire pressure causes
premature wear and can cause
sudden tire blow-out. For this
reason, tire pressure must be
checked at least once a month
¢ page 282.
M N
0 ...J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
recommend using only these
tires because they meet the highest standards regarding
safety and driving characteris
tics when used correctly. Your
authorized Audi dealer will
gladly provide you with more
information.
Tire ply composition and materials used
The number of plies indicates
the number of layers of rubber
coated fabric in the tire. In gen
eral, the greater the number of plies, the more weight a tire
can support. Tire manufactur
ers also must indicate the ma
terials in the tire, which include steel, nylon, polyester, and oth
ers .
Maximum Load Rating
This number indicates the max
imum load in kilograms and
pounds that can be carried by
the tire.
Tire quality grading for
treadwear, traction, and
temperature resistance
Tread wear , traction and tem
perature grades ¢
page 297.
Tires and wheels 295
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.
A 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
•
•
'
322 Emergency situations
fall from a lift if there is a change in ve
hicle weight distribution and balance.
This might happen, for example, when
heavy components such as the engine
block or transmission are removed .
- When removing heavy components like
these, anchor vehicle to hoist or add cor
responding weights to maintain the cen
ter of gravity. Otherwise, the vehicle
might tilt or slip off the hoist, causing
serious personal injury.
(D Note
- Be aware of the following points before
lifting the vehicle:
-The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing, the
front or rear axle or the body side
members. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity
of the hoist.
- Before driving over a workshop hoist,
ensure that there is sufficient clear
ance between the hoist and low parts
of the vehicle.