tires AUDI A4 CABRIOLET 2009 Owner's Manual

-Tires and wheels
P'U:1-------------------
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 tire inflation pressure" recommendations .
The tires would then be underinflated and could fail suddenly.
Maintaining proper tire pressure is one of the most important
things you can do to help avoid sudden tire failure. Underinflated
tires are a major cause of sudden tire failure. Keeping tires at the
right pressure is also important for safe and responsive vehicle
handling, traction, braking and load carrying.
Tire pressures are
particularly important when the vehicle is being driven at higher
speeds, and then especially when heavily loaded even within the
permissible load-carrying capacities approved for your vehicle .
The recommended tire pressures for your Audi depend on the kind
of tires on your vehicle and the number of passengers and/or
amount of luggage you will be transporting.
On USA vehicles, the tire pressure label is located on the driver's
side B-pillar . On Canada vehicles, the tire pressure label is located
either on the driver's side B-pillar or inside the fuel filler flap. The tire
pressure label lists the recommended cold tire inflation pressures
for the vehicle at its maximum capacity weight and tires that were
on your vehicle at the time it was manufactured.
If you wish to improve comfort when operating the vehicle at
normal load (up to 2 occupants), you can adjust tire pressures to
-
those specified for normal vehicle load. Before operating the vehicle
at maximum load, you must increase the tire pressures to those
specified for maximum vehicle load
=> & .
If your vehicle is equipped with a tire pressure monitoring system *,
bear in mind that the system can only monitor the tire pressures you
have stored. The system does not recognize the load condition of
your vehicle.
The effectiveness of the tire pressure monitoring system will be
impaired if you store normal load pressures but then operate the
vehicle at its maximum load=>&.
See the illustration =>
page 271, fig. 207 for the location of the label
either on driver's side B-pillar or inside the fuel filler flap (color of
the actual label and exact location on the vehicle will vary slightly).
Note that the following table is accurate at the time of going to
press and is subject to change. In the event of discrepancies, the tire
pressure label (either on driver's side B-pillar or inside the fuel filler
flap) always takes precedence .
The table below lists the recommended cold tire inflation pressures
for the Audi model covered by your Owner's Literature at the
vehicle's capacity weight and the tire sizes installed on the respec­
tive models as original equipment, or as a factory option.
Engine
(displace­
ment in liter) Tire designation
Tire pressure front Tire pressure rear
4-cylinder
2.0 215/55 R16 93H All Season
235/45 R17 94H All Season
235/45 R17 94Y High Performance
235/40 R18 95Y XL High Performance
normal load
condition (up to
2 occupants)
PSI
33
33
30
36
kPA
230
230
210
250
full load
condition
PSI
35
35 33
42
II kPA
240
240
230
290
normal load
condition (up
to 2 occupants)
PSI
30
30
30
36
JI kPA
210
210
210
250
11 full load
condition
PSI
38
38
33
42
JI kPA
260
260
230
290
I

Tires and wheels -
----------------
•
Engine Tire designation Tire pressure front Tire pressure rear
(displace- normal load normal load
ment in full load
full load
liter ) c
ondit ion (up to
condition c
ondition (up
condition
2 occupants ) to 2 occupants)
PSI kPA PSI kPA PSI kPA PSI kPA
6 -cylinder 215 /55 R16 93H All Season 35 240
38 260
30 2
10
38 260
3.2
235/45 R17 94H All Season 35 2
4 0
38 260 30 2
10
38 260
235/45 R17 94V High Performance 30 2 10 3 3 230 30 2 10 33 230
235 /40 R18 95V XL High Performance 41 280 46 320 41 280 4 6 320
XL= reinforced or extra load tire. It may also appear as x i, EXTRA LOAD , or RF on the tire sidewa ll.
The correct tire pressure for the
spare wheel is located on a label
either on the dr iver's side B-pilla r or i nside the fuel filler flap.
Because technical changes may be made to vehicle equipment
dur ing the mode l year, a lways co mpare the tire size designatio n on
the tire pressure label on your vehicle with the tires on your vehicle .
Make sure t hat the tire s ize informa tion o n the vehi cle labe l is the
same as the size of the tires on the vehicle . This is especially impor ­
t a nt if th e ve hicle belo ngs to someone else or you bough t the
vehic le with different rims/tires or you bought the vehicle as a previ ­
ously owned vehicle.
Re member, your safety and that of your passeng ers a ls o depends
on making sure that load limits are not exceeded. Vehicle load
inc lude s every body and everyt hin g i n and o n the vehic le . These load
limits are techn ically referred to as the vehicle's Gross Vehic le
Weight Ra tin g ("GVWR") . The Gross Axle Weig ht Ra ting ("GAWR") is
the maximum load that can be applied at each of the veh icle's two
ax les . The Gross Vehic le W eight Rating and the Gross Ax le Weight
Rating are listed on the safety compliance sticker label located
either on the driver's s ide 8 -pillar or on the inside of the fuel fi ller
fl ap. T he ti re pressure labe l on your Aud i lists the max imum
combined weight of a ll of the occupants and luggage or other cargo that the vehicle can car
ry. Fo r the l ocat io n of the tire pressure la bel
=> page 271, fig. 207.
LJ}. WARNING
Overload ing a vehicle can cause loss of vehi cle cont rol , a crash or
other ac cident , serious per sonal injury , and even death .
• Carrying more weight than your vehicle wa s designed to carry
will prevent the vehicle 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 dist ance.
• Tires on a vehicle that has been overloaded can fail suddenly
cau sing lo ss of control and a crash .
• Always make sure that the total load being transported -
including the weight of a trailer h itch and the tongue weight of a
loaded trailer -does not make the vehicle heavier than the
vehi cle 's Gross Vehicle Weight Rating . .,,_
Vehic le care

lffll,.___T_ ir_e_ s _ a_ n_d_ w_ h_ e_e _ l_s _________________________________________________ _
& WARNING
• Incorrect tire pressures and/or underinflation can lead to a
serious or fatal accident.
• 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,
causing 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
either on driver's side 8-pillar or inside the fuel filler flap.
The recommended tire pressures are on the tire pressure label and
in the table=>
page 271, "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 expands
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 . Therefore, you
should never let air out of a warm tire to match "Cold tire inflation
pressure" recommendations=>
page 271. The tires would then be
underinflated and could fail suddenly.
The tire pressure label on your Audi lists the recommended cold tire
inflation pressures for the new, original equipm ent tires that were
on your vehicle at the time it was manufactured. For the location of
the label =>
page 271, fig. 207.
Most tires lose air naturally over time. They can also lose some air if
you drive over a pothole or hit a curb while parking. 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 account when adjusting tire
pressure for a trip -even one that you would not consider to be
"long." See=>
page 275, "Tires and vehicle load limits" for more
impor tant information .
Always use an accurate tire pressure gauge when checking and
adjusting inflation pressures . Check all of the tires and be sure not
to forget the spare tire. If the pressure in any tire is too high when
the tire is "cold," let air out of the tire slowly with the edge of the tire
gauge and keep checking the pressure until you reach the pressure
that is correct for the load (passengers and luggage) and kind of
driving you plan to do.
If the pressure in any tire is too low, note the difference between 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 inflation pressure listed on the tire
sidewall for any reason.
Remember that the vehicle manufacturer, not the tire manufacturer,
determines the correct 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 pressure from the tire pressure label. On
USA vehicles, the tire pressure label is located on the driver's side
B-pillar . On Canada vehicles, the tire pressure label is located either
on the driver's side 8 -pillar or inside the fuel filler flap.
• Turn the valve stem cap counter-clockwise to remove it from the
tire valve.
• Place the air pressure gauge on the valve. .,_

Tires and wheels -
----------------
•
• The tire pressures should only be checked and adjusted when
t he t ires are co ld . The s lightly raised press ures of warm tires must
not be reduced .
• Adjust t he tire p re ssure to the load you are carrying.
• Reinstall the va lve stem cap on the valve.
When should I check the tire pressure?
The correc t tire p re ssur e is espec ially i mportant at high speeds. The
pressure should there fore be c hecked at least once a month and
a lways before starting a journey. Do not forget to check the tire pres ­
su re for t he spare whee l::::>
page 291.
When should I adjust the tire pressures?
Adjust the ti re pressur e to the load you are carrying. A fter chang in g
a wheel
or replacing whee ls you have to adj ust t he t ire pressure s on
a ll whee ls. In addition, o n ve hicles w ith t ire pressure monito ring
system * you must then store the new tire pressures in the system
=> page 41.
& WARNING
Incorrect tire pres sures and /or underinflation can lead sudden tire
failure, loss of control , collision, serious personal injury or even
death .
• When the warning symbol ( appears in the instrument
cluster , stop and inspect the tires .
• Incorrect tire pressure and /or underinflation can cause
increased tire wear and can affe ct the handling of the vehicle and
stopping ability .
• Incorre ct tire pressures and /or underinflat ion can also lead to
sudden tire failure, including a blowout and sudden deflation,
causing loss of vehi cle control.
• The driver is responsible for the correct tire pressures for all
tires on the vehicle . The appli cable pre ssure values are located on
a sticker on the driver 's side 8-pillar or on the inside of the fuel
filler flap .
& WARNING (continued )
• Only when all tires on the veh icle are filled to the correct pres­
s ure, the tire pressure monitoring system * can work correctly .
• The use of incorrect tire pressure values can lead to accidents
or other damage . Therefore it is essential that the driver observe
the specified tire pressure values for the tires and the correct pres­
sures for the function of the tire pressure monitoring system*.
• Alway s inflate tires to the recommended and corre ct tire pres ­
sure before driving off.
• Driving with underinflated tires bend more , letting them get
too hot resulting in tread separation , sudden tire failure and loss
of control.
• Excessive speed and /overloading can cause he at 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 nearest service station
to che ck the tire pressure and add air as required .
0 Note
Driving without valve stem caps can cause damage to the tire
valves. To p revent this, a lways make sure tha t factory installe d va lve
stem caps on al l wheels are securely mounted on the va lve .
<£> For the sake of the environment
Underinflated tires wi ll a lso increase the fue l consumption. •
Tires and vehicle load limits
There are limits to the amount of load or weight that any vehic le and
any tire can carry. A vehicle that is overloa ded wil l n o t handle well _,.
Vehic le care

Steps for Determining Correct Load Limit
1. Locate the statement "THE COMBINED
WEIGHT OF OCCUPANTS AND CARGO SHOULD NEVER EXCEED XXX KG OR XXX
LBS"on your vehicle's placard (tire infla­
tion pressure label)=>
page 271, fig. 207.
2. Determine the combined weight of the
driver and passengers that will be riding
in your vehicle.
3. Subtract the combined weight of the
driver and passengers from
"XXX" kilo­
grams or
"XXX" pounds shown on the
sticker=>
page 271, fig. 207.
4. The resulting figure equals the available
amount of cargo and luggage load
capacity. For example, if the
"XXX"
amount equals 1400 lbs. and there will
be five
150 lbs. passengers in your
vehicle, the amount of available cargo
and luggage load capacity is
650 lbs.
( 1400- 750 (5 x 150) = 650 I bs.)
Tires and wheels 1111111
5. Determine the combined weight of
luggage and cargo 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 trailer will be transferred
to your vehicle. Consult this manual to
determine how this reduces the avail­
able cargo and luggage load capacity of
your vehicle.
- Check the tire sidewall (=>
page 279,
fig. 211) to determine the designated
load rating for a specific tire. •
Vehic le care

___ T_ i_ r_e _s_ a_ n_ d_ vv_ h_ e_ e _ ls _________________________________________________ _
Tire service life
The service life of tires depends on a lot of different things
including proper installation and balancing, correct tire
pressure and driving style .
(r------,')
l "------J)
Tread Wear Indicator ( TWll
ij
:c ., m
Fig. 209 Tire tre ad:
t read wear ind ica to rs
(TW IJ
Fig . 2 10 Rot ati ng tire s
for mo re even w ear
The orig inal tires on your vehic le have 1 /16 inch (1.6 mm) high "wear
indicators "~ fig. 209 running across the tread . Depending on the
make , there will be six to eight of them evenly p laced around the
tire . Marks on the tire sidewall (for example "TWI" or other symbo ls)
indicate the positions of the tread wear indicators . Worn tires must
be replaced. Dif ferent figures may apply in other countries~&.
Tire pre ssure
Incorrect tire pressure causes premature wear and can cause
sudden tire blow-out . For this reason , tire pressure mus t be checked
at least once a month~
page 274.
Driving style
Driving fast around curves, heavy acce leration and hard braking
increase tire wear .
Rotating t ires for more even wear
For all four tires on your vehicle to have the same service life, we
recommend that the front and rear tires are rota ted according to the
tire manufacturer's suggested tire rotation interva ls . Please
remember the following:
• Tire rotation interva ls may differ from the vehicle service inter­
vals out lined in your Warran ty
& M aintenance Booklet .
• The longer one tire is used in one locat ion on the vehicle, the
more it wears at certain po ints; therefore, we recommend that you
follow the tire manufacturer 's suggested t ire rotation intervals .
• Vehicles with front -wheel drive experience more tread wear on
the front wheels compared to al l-wheel drive (quattro®) .
• Please rotate tires as shown ~
page 278, fig. 210 .
• Extra care must b e taken wh en rotat ing dir ection -specific tires
~ page 298.
Wheel balan cing
The wheels on new vehicles are balanced. However, various situa­
tions during everyday dr iving can cause them to b ecome unbal ­
anced, resulti ng in vibra tions you can usually feel through the
ste ering whee l.
Unbalanced wheels must be rebalanced to avoid excessive wear on
steering , suspension and tires . A wheel must also be reba lanced
when a new tire is installed.
~

__________________________________________________ T_ ir_e _ s_ a_ n _ d_ w_ h_ e_ e_ls _ _____,ffllll
In correct wheel alignment
Inc orrect wheel alignment can cause excessive tire wea r, impairing
the saf ety of the vehicle . If tires s how excessive wear , have the
whee l alig nment chec ked by an autho rized A udi deale r or q ualif ied
workshop .
All Wheel Drive
Vehicles with quattro ® must always have tires of the same si ze ,
cons tructi on and tread type . For details see => page 218 .
& 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 indi cators .
• E specially in wet and slick driving situations , a preferably large
profile depth of the tires is necessary , and an approximately
similar profile depth of the front and rear axle tire s.
• The diminished driving safety , caused by too small of a tire
profile , is negatively perceivable especially in handling , in danger
of hydroplaning when driving through deep puddles and ponds ,
when driving around curve s, and in braking behavior.
• Worn t ires are a safety hazard , they do not grip well on wet
roads and increase your risk of "hydroplaning " and loss of control.
• Always keep chemicals that can cause tire damage , such a s
grease , oil , gasoline and brake flu id away from tires.
• Tires age even if they are not being used and can fail suddenly ,
espe cially 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
lowe r speeds.
• Never mount used tire s on your vehicle if you are not sure of
their "previous history ." Old u sed tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and los s of vehicle control. •
New tires and replacing tires and wheels
New tires and wheels ha ve to be bro ken in.
Fig. 211 Tire spe cification cod es on the sidewall of a tir e
No. Description
©
@
@
@
©
©
Passenger car tire (where applicable)
Nominal w id th of tire in mi llimeters
Ratio of height to width (aspect ratio)
Radia l
ii Rim diameter code
Load index an d sp eed ra ting
Vehic le care irechnical data

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
0
©
@
U.S. DOT tire identification number
Sever snow conditions
Tire ply composition and materials used
Maximum load rating
Treadwear, traction and temperature grades Maximum permissible inflation 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 char­ acteristics of the vehicle and can make a major contribution to good
road holding and safe handl ing when in good condition and prop ­
erly inflated =>& .
We recommend that al l work on tires and wheels be performed by
an authorized Audi dealer . They are familiar with recommended
procedures and have the necessary special too ls and spare parts as
we ll as the proper facilities for disposing of the o ld tires .
Authorized Audi dealers have the necessary information about tech ­
n ical requirements for insta lling o r changing tires and rims .
Repl ac ing t ires and wheels
Tires should be replaced at least in pairs and not individually (for
example both front tires or both rear tires together).
On vehicles with tire pressure moni toring system*, be sure to read
and heed the information=>
page 287.
Always buy replace ment radia l tires tha t have the same specifica ­
tions as the tires approved for your vehicle by Audi . Replacement
tires must always have the same load rating specification as the
original equipment or approved optional tires listed in the table
=>
page 271.
A udi -appr oved specificat ion tires a re specially matched t o your
vehic le and its load limits, and can contribute to the important road- holding, driving characteristics, and safety of the vehicle
. T he tab le
( =>
page 271) lists specifications of the tires approved for the Audi
models covered by your Owner's Literature.
The tire pressure label located either on driver's side B -pi llar or
insi de the fuel filler flap(=>
page 271, fig. 208) lists the specifica ­
tions of the original equipment tires installed on your vehicle at the
time it was manufactured.
Federa l law requires tire manufacturers to place standardized infor ­
mation on the sidewa ll of all tires=>
page 279, fig. 211. This informa ­
tion identifies and descr ibes the fundamenta l characteristics, the
quality grade of the tire and a lso prov ides a tire identification
number for safety standa rd certif ication and in case o f a recall.
Tire sp ecifi cations
Knowledge of tire specifications makes it easier to choose the
correct t ires. Rad ial tires have the tire specifications mar ked on the
sidewal l, for example:
P235 / 45 R 18 95 Y
This c onta ins the fo llowing informatio n:
P Indicates the tire is fo r passenger cars (where appl icab le)
2 3 5 Nominal tire width in mm of the tire from sidewall edge to s ide -
wa ll edge. In general, the larger the number, the wider the tire
45 Height/width ratio in percent (aspect ratio)
R Tire construction: Radial
18 Rim d iameter c ode (in inches)
95 Load rat ing code
V Speed rating letter code
X L (or "xi", "EXTRA LOAD" or "RF") indicates that the tire is a "Rein ­
forced" or an "Ex tra Load" ti re
M +S (or "M/S") Indicates that the tire has some mud and snow capa ­
bility
The ti res cou ld also have the information of direction of rotation
=>
page 267 .

__________________________________________________ T_ ir_e_ s_ a_ n_d _ w_ h_ e_ e_l_s _ ...... ffllll
•
Tire manufacturing date
The manufacturing date is also indicated on the tire sidewall
(possibly on ly on the
inner side of the wheell:
"DOT ... 2209 ... " means, for example, that the tire was produced in
the 22th week of 2009.
Speed rating (letter code)
The speed rating letter code on the wheels indicates the maximum
permissible road speeds =:,
& in "Winter tires" on page 284.
P up to 93 mph (150 km/h)
Q up to 99 mph (158 km/h)
R upto 106mph(170km /h)
S upto110mph(180km/h)
T upto118mph(190km/h)
U up to 124 mph (200 km/h)
H upto130mph(210km/h)
V up to 149 mph (240 km/h)
31
Z over 149 mph (240 km/h)3
l
W up to 168 mph (270 km/h)31
Y up to 186 mph (298 km/h)3
l
Your vehicle is normally factory equipped with tires, which possess
excel lent driving characteristics and give your Audi opt imum
driving comfort. An electronic speed limiter=:,
page 28will normal ly
prevent your vehicle from going faster than the tire speed ratin g
=:>& .
U.S. DOT Tire Identification Number (TIN ) and tire
manufacture date
This is the tire's "serial number". It begins with the le tters "DOT"
and indicates that the tire meets all federal standards. The next two
numbers or letters indicate the plant where it was manufactured,
and the last four numbers represent the week and year of manufac-
31 For tires with a maximum speed capability over 149 mph (240 km/h), tire
m anufacturers so metimes use the letters "ZR."
ture. For example, the numbers 2209 mean that the tire was
produced in the 22th week of 2009. The other numbers are
marketing codes that may or may not be used by the tire manufac­
turer . This information is used to contact consumers if a tire defect
requires a recall.
Tire ply composition and materials used
The number of plies indicates the number of layers of rubber-coated
fabric in the tire. In general, the greater the number of plies, the
more weight a tire can support. Tire manufacturers also must indi ­
cate the materials in the tire, which include steel, nylon, polyester,
and others.
Maximum Load Rating
This number indicates the maximum load in kilograms and pounds
that can be carr ied by the tire .
Tire quality grading for treadwear, traction, and
temperature resistance
Tread wear, traction and temperature grades=:, page 283.
Maximum Permissible Inflation Pressure
This number is the greatest amount of air pressure that should ever
be put in the tire under normal driving conditions.
Replacing tires or rims on vehicles equipped with tire
pressure monitoring system*
The wheels on your vehicle are equipped with a sensor which
constantly monitors the air pressure inside the tire, and then trans ­
mits this information to the tire pressure monitoring system*. If you
are going to replace the wheel rims on your vehicle, make sure the
new rims also have these sensors . The sensors must be compatible
with the tire pressure monitoring system* on your vehic le .
If you install rims, which do not have the sensors, or have sensors
which are not compatible, then the tire pressure monitoring
system* wil l not work properly. In this case, the tire pressure moni -.,_
Ve hic le care

-~_T_ ir_e_ s_ a_ n_d _ w_ h_ e_e _l_s _________________________________________________ _
toring system* would not be able to monitor the tire pressure or
warn you if it is necessa ry.
• T he battery inside of the tire pressure sensor has a limited
service life.
• Always drive with the valve stem caps securely mounted. We
r ecommend us ing facto ry insta lled va lve stem caps. Ask you r autho ­
rized Audi dealer to replace lost va lve stem caps.
T he installation of rep lacement tires with steel cord body p lies in
t he tire sidewall may cause mal functi on of the tir e pressure mo ni­
toring system , and is not recommended (cord material information
in mo lded o n th e ti re sid ewa ll) .
Always check your tire pressure monitoring system * indicator after
r eplacing one or mo re ti res on your veh ic le . I f the ti re p ress ure
m onito ring syste m* ind icator flashes, or is o n, your s ystem is not
wo rking properly . Your replacement t ire might be incompatible with
yo ur tir e pressure mon ito ring system* , o r so me compo nen t of th e
tire p ressure monitoring system * may be damaged .
& WARNING
• Using incorrect or unmatched tires and I or wheels or improper
tire and wheel combinations can lead to loss of control , collision
and serious personal injury .
• Always use t ires , rims and wheel bolts that meet the specifica­
tions of original factory-installed tires or other combinations that
have been specifically approved by the vehicle manufacturer.
• Tires age even if they are not being used and can fa il suddenly,
espe cially 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 speed s.
• Never mount used tire s on your vehicle if you are not sure of
their "previous history ." Old used tire s may have been damaged
even though the damage cannot be seen that can lead to sudden
tire f ailure and loss of vehicle control.
& W ARNING (continued )
• All four wheels mu st be fitted with radial tires of the same type,
size (rolling circumference ) and the same tread pattern. Driv ing
with different tires redu ces vehicle h andling and can lead to a loss
of control.
• If the spare tire is not the same as the tires that are mounted
on the vehicle - for e xample with winter tire s - only u se the spare
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
the ir rated speed can fail suddenly .
• Overloading tires cause heat build-up, sudden tire failure ,
including a blowout and sudden deflation and loss of control .
• Temperature grades apply to tires that are properly inflated and
not over or underinflated .
• For te chnical reasons it is not always possible to use wheels
from other vehicle s -in some cases not even wheels from the
same vehicle model.
• If you install wheel trim discs on the vehicle wheels, make sure
that the air flow to the brakes is not blocked. Redu ced airflow to
the brakes can them to overheat , increasing stopping distances
and causing a collision.
• Run flat tire s may only be used on vehicle s that were equipped
with them at the fa ctory . The vehicle must have a cha ssis designed
for run flat tires and a factory -installed tire pressure monitoring
s ystem that indicate s a loss of tire pressure . Incorre ct use of run
flat tires can lead to vehicle damage or accidents . Check with an
autho rized Audi dealer or t ire specialist to see if your vehicle can
be equipped with run flat tires .
If run flat tires are used , they mu st
be installed on all four wheels . Mixing tire types is not permitted. .,