change wheel AUDI S8 2010 User Guide

Tires and wheels Ill
----------------
sure 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 3 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~& .
Bear in mind that the tire pressure monitoring system* can only
mon itor the tire pressures you have stored . The system does not
recognize the load condition of your vehicle.
Th e 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 310, fig. 2 52 for the locat ion of the label
either on dr iver'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 tab le is accurate at the time of going to press
and is subject to change. In the event of discrepancies , the tire pres­
sure label (On USA vehicles, the tire pressure label is located on the
dr ive r's side B -pillar . On Canada veh icles, the tire pressure label is
located either on the dr iver's s ide B-pillar or inside the fue l f ill er flap)
always takes precedence.
The table below lists the recommended cold t ire inflation pressures
for the Audi model covered by your Owner's Literature at the vehicle's
capacity weight and the tire sizes insta lled on the respective models
as original equipment, or as a factory option .
Engine Tire designation Tire pressure front Tire pressure rear
(displace- normal load full load normal load
full load
ment in conditiona> condition conditiona> condition
liter)
PSI kPA PSI kPA
a -cylinder 255/45 Rla 99H All Season
33 230 36 250 30 210 35 240
4.2
255/40 Rl9 l0OV XL All Season 36 250 39 270 33 38 260
255/40 Rl9 l00Y XL High Performance 33 230 36 250 30 210 35 240
265/35 R20 99V XL High Performance 35 240 38 260 32 220 36 250
275/35 R20 102V XL High Performance 38 260 41 280 35 240 44 300
a-cylinder 255/45 Rla 99H All Season 33 230 36 30 210 35 240
4.2 L
255/40 Rl9 l00V XL All Season 36 250 39 270 33 230 38 260
255/40 R19 l00Y XL High Performance 33 230 36 250 30 35 240
275/35 R20 102V XL High Performance 38 260 41 280 35 240 44 300
Safety first Vehicle care Technical data

Ill Tires and wheels
-------------------
Engine Tire designation Tire pressure front Tire pressure rear
(displace- normal load
full load normal load
full load
ment in
liter) conditiona
> condition
conditiona> condition
PSI kPA PSI kPA PSI
kPA
PSI kPA
12-cylinder
255/45 R18 99H All Season 36 250 39 270 32 220 35 240
6 .0
255/40 R19 lOOV XL All Season 41 280 44 300 36 250 39 270
255 /40 R19 lOOY XL High Performance 36 250 39 270 32 220 35 240
275/35 R20 102V XL High Performance 3 8 260 41
280 35 240 44 300
XL= reinforced or extra load tire . It may also appear as xl, EXTRA LOAD, or RF on the tire sidewall.
a) norma l load cond iti on => page 310.
The correct tire pressure for the spare wheel is located on a label
ei ther on the driver 's s ide B- pillar o r inside the f uel fille r flap .
Beca use techn ica l changes may be made to vehicle equipment during
the model year, always compare the tire size designation o n the tire
pressure labe l on yo ur vehi cle w it h the tires on your ve hicle. Make
sure that the tire size information on the ve hicle labe l is the same as
t he s ize of the tires on the vehicle. This is especia lly im portant if the
vehicle belongs to someone e lse or you boug ht the vehicle w it h
different r ims/ tires or you bo ugh t the vehicle as a prev iously owne d
veh icle .
Remember, your safety and that of your passengers also depends on
ma king sure that load limits are not exceeded. Vehicle load includes
everybody and everything in an d on the vehicle . These load limits are
t echnically refer red to as the veh icle's G ross Ve hicle Weig ht Ra ting
("GVWR"). The Gross Axle Weight Rating ("GAWR") is the max imum
load that ca n be applied at ea ch of the vehi cle's two axles. The G ross
Vehicle Weight Rating and the Gross Ax le Weight Rating are listed on
t he safety compliance sticke r label lo cated ei ther on the d river 's side
B-pil lar or o n the inside of the fuel filler flap. T he tire pressure label
on yo ur A udi lists the maximum comb ined weight o f all of the occu -pa
nts and luggage or other ca rgo that the ve hicle can carry . For the
loc atio n of t he tir e pressure label~
page 310, fig. 252.
& WARNING
Overloading a vehicle can cause loss of vehicle control, a crash or
other accident, serious personal injury, and even death.
• Carry ing more weight than your vehicle was designed to carry
will prevent the vehicle from handling prope rly and increase the
ri sk of a lo ss of vehicle control.
• The brakes on a vehicle that has been overloaded may not be
able to stop the vehicl e within a safe distance.
• Tires on a vehicle that ha s been overloaded can fail suddenly
causing lo ss of control and a crash .
• Always make sure that the total load being transported -
i ncluding the weight of a trailer hitch and the tongue weight of a
loaded trailer -does not make the vehicle heavier than the
vehicle 's Gro ss Vehicle Weight Rating .
~

-~_T_ ir_e_ s_ a_ n_ d_ w_ h_e_ e_ ls _______________________________________________ _
• The tire pr ess ure s sho uld o nly be c hecke d an d adjusted wh en the
t ire s ar e cold . Th e slightly rais ed pr ess ure s of war m tir es mu st not b e
r e d uced .
• Adjust th e tire p re ss ur e to t he load yo u a re ca rr yin g.
• Reinstall the valve stem cap on the valve.
When should I check the tire pressure?
The correct tire press ure is especia lly imp orta nt at high speeds . T he
pr essu re s hou ld t here fo re b e ch ec ked at least onc e a mo nth an d
always be fore sta rting a jo ur ney. Do not fo rget to check the tire pres­
su re for th e s pare wheel~
page 33 4.
When should I adjust the tire pressures?
Adjus t the tire pr essur e to th e load yo u are carrying . A ft e r changi ng a
w heel
or replac ing w heels yo u have to adjust the ti re pressures on all
w heels. In addi tio n, yo u mu st then stor e the new tir e press ures in the
tire pressu re monitoring system*~
page 326.
& WARNING
Incorrect tire pressures and/or underinflation can lead sudden tire
failure, los s 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 affect the handling of the vehicle and
stopping ability.
• Incorrect tire pressures and/or underinflation can also lead to
sudden tire failure, including a blowout and sudden deflation,
causing loss of vehicle control.
• The dr iver is responsible for the correct tire pressures for all
tires on the vehicle. The applicable pressure values are located on
a sticker on the driver 's side 8-pillar or on the inside of the fuel
filler flap .
& WARNING (co ntinued )
• Only when all tires on the vehicle are filled to the correct pres­
sure, 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*.
• Always inflate tires to the recommended and correct 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 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 nearest service station
to check the tire pressure and add ai r as required.
0 Note
Dr iv ing witho ut valve stem caps can caus e damage to the tire valves.
T o preven t this, alw ays m ake s ure th at facto ry installe d valv e st em
caps o n all whee ls a re securely mo unted o n the valve.
Under infla ted tires will a lso inc rease t he f uel cons umption .•
Tires and vehicle load limits
T here a re lim its to the amount of load or we ight that any veh icle a nd
a ny t ire c an car ry. A veh icle th at is overloade d wi ll not ha n dle we ll an d ...

___ T_ i_ r _e _s_ a_n_ d_ w_ h_ e_e_ l_ s _______________________________________________ _
• Tire pressure must only be adjusted when the temperature of the
tires is about the same as ambient air temperature .
• When tires are replaced, the sensors and valves should not be
detached or exchanged . Only the valve core needs to be replaced and,
if necessary, the valve and the wheel electronics replaced .
• The tire pressure monitoring system on your Audi was calibrated
usiing tires with the "AO" or "RO" identification. We recommend
using these tires.
• If you should put different wheels and tires on your vehicle (e.g.
winter wheels and tires), you must be certain that the wheels and
tires are compatible with the tire pressure monitoring system. Other­
wise the system will register a malfunction and a fault message will be displayed. For more information, contact your authorized Audi
dealer.
• Adjust the tire pressure and store the pressure in the tire pressure
monitoring system to the load you are carrying=:>
page 310.
• For Declaration of Compliance to United States FCC and Industry
Canada regulations =:>
page 364. •
Applies to veh icles: with Tire pressure monitoring system
Significant loss of air p ressure I
The yellow symbol appears in the event of a significant
loss of air pressure.
Fig. 257 Display:
yellow symbol with
message Fig.
258 Display:
yellow symbol without
message
If the warning light in the instrument cluster=> page 17
illuminates and then the symbol appears in the display
=:> fig. 257 or=> fig. 258, this means the tire pressure is too
low in one or several tires (including spare tire* with sensor).
- Stop driving as soon as possible without endangering
yourself or other drivers on the road.
- Inspect the tire or tires.
- Change the tire if necessary=>
page 335.
The"' warning light in the instrument cluster comes on when the tire
is significantly underinflated.
In addition, the tire symbol { appears in the display together with
the message
Please check tire pressure=:> fig. 25 7.
After a few seconds, the message disappears again=:> fig. 258 . If you
would like to show the message again, press the
I CHECK] button.
[ i] Tips
• In the case of an intentional loss of air pressure, for example,
when re-adjusting tire pressure, this has to be stored again after­
wards:::::,
page 330.
• Current information about tire pressures and temperatures can be
scanned in MMI
=:> page 329. .,,.

-~_T_ i_ re _ s_ a_n _ d_ w_ h _e_ e_ ls _________________________________________________ _
• The tire pressure monitoring system helps the driver to keep an
eye on tire pressures. B ut the driver still has the responsibility for
maintaining the correct tire pressure .•
A pplie s to v ehi cle s: w ith Tire pre ssure moni toring syst em
Storing tire pressures
Correct storage of specified pressure is the basic require­
ment for reliable tire pressure monitoring.
In order for the tire pressure monitoring system to operate
appropriately, you have to re-save the specified pressures
whenever you adjust tire pressure, for example when the load
condition of your vehicle changes . Proceed as follows:
Corr ecting tir e pr essure
- Check the pressure in the tires (including the spare t ire*) .
- Adjust air pressure as needed in accordance with t he infor -
mation on the label located e ither on the driver's side B ­
pillar (visible when the door is open), inside the fuel filler
flap and additionally in the manual.
Saving tire p ressures
- Turn on the ignition.
- Press the [
CAR] function button .
- Select
Systems in the CAR menu .
- Select
Tire pressure mon itoring .
-Select Sto re curr. tire pressure s~ page 329, fig . 259 .
All pressure warning indicators in the display will be canceled.
Following each intentional change in specified pressures, tire pres­
sures must be resaved . After the
pressures are saved, the tire pressure monitoring system
measures the c urrent tire pressures and saves them as the new spec­
ified pressures .
(I] Tips
• The tire pressure is shown on the tire pressure label. On USA vehi­
cles, the tire pressure label is located on the driver's side B-pillar. On
Canada veh icles, 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 t ire inflation pressures for the
vehicle at its maximum capacity weight and the tires that were on
your vehicle at the time it was manufactured. For recommended tire
pressures for normal load conditions, please see chapter
=> page 310.
• The tire pressure monitoring system helps the driver to keep an
eye on tire p ressures. But the driver still has the responsib ility for
maintaining the correct tire pressure .
• If your veh icle is eq uipped w ith a standard spare ti re*, it must be
inflated to the maximum pressure specified for the vehicle .•
A pp lies to vehicles: with T ire pressu re monitor ing system
Changing a wheel
When you change a wheel, the new tire must be initial ­
ized.
Turn on the ignit ion .
- Press the
I CAR I function but ton .
- Select
Systems in the CAR menu.
- Select
Tire pre ssure mon itoring .
-Select Initialize wheels~ page 329, fig. 259 .
Programming is necessary:

Tires and wheels Ill _______________ _____.
• Afte r the t ires have been rotated on the vehicle (includi ng use o f
the sp a re t i re*),
• If tires with new wheel sensors are used .
All pressure wa rning and system malfunction indicators in the display
will be canceled .
I f a wheel change has been made , it is necessary to complete the
Initializ e wheel s function .
The tire pressure monitor ing system is not available during the
prog ramming process and no p ressure and temperat ure val ues are
displayed on the MM I display .
After you have selected the function, th e new whe els are
programmed and the act ua l pressures are stored . Th is learn ing phase
can take up to 20 minutes d riving time .•
A pp lies to vehicles : w ith Tir e pressu re mon itor ing system
Malfunctions
A malfunction can have various causes.
Fig. 26 1 D ispl ay :
S ys tem malf uncti on
If the warning ligh t in the inst rument cl uste r flashes fo r approxi -
mately one minu te and then remain continuously illuminated and
additionally the => fig . 261 symbol appears in the d is p lay , the
tire pressure monito ring system is not available . This can have various
causes.
Vehicle OP-eration
• If the message appears at the end of the learning process, the
system c annot recognize the whee ls ins talled o n the veh icle . T his can
be because one or more wheels without a wheel sensor were
installed .
• A wheel sensor or other component may have failed .
• T he sy stem has detected more than S whee ls wi th whee l sensors
i n the ve hicle, for example when carry ing snow tires.
• A tire was changed but the
Init ialize wheel s function was not acti­
vated =>
page 330.
• Audi rep lacemen t pa rts were no t used .
• If snow chai ns are be ing used, system function can be compro ­
mised due to the shielding properties of the chains .
• Th e tire press ure monitor in g sys tem may not be ava ilable because
of a radio malfunction.
• Transmitters wi th the same freq uen cy, s uch as radio headphones
in the vehicle or radio equipment, can cause a temporary disrupt io n
of the sys tem throug h ex cessive elect romag net ic fie lds.
• Eliminate the interference if possible/if you can and then re-start
t he
Initialize wheels f unc tion. If the wa rning light comes on again,
you should contact your authori zed Audi dealer immediately to have
the problem corrected .
• Do not use commercially ava ilab le tire sealants . Otherw ise, the
elect rical components of the tire pressure mon itor ing system w ill no
longer work proper ly and the sensor for the t ire pressure monitoring
system will have to be replaced by a qualified workshop. •
Vehicle care Do-it-yourselt service iTechnical data

What do I do now? -____________________ .:..::......:..:...___Wi'.'11
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
Storing the replaced wheel
-Place the replaced wheel inside the spare wheel well in the
luggage compartment.
Tighten the knurled retaining screw clockwise to secure
the wheel in place.
- Disengage and lower the floor panel before you close the luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident.
• Never store the spare wheel or jack and tools in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[I] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use .•
Safety first
Changing a wheel
Before changing a wheel
Observe the following precautions for your own and your
passenger's safety when changing a wheel.
- After you experience a tire failure, pull the car well away
from moving traffic and try to reach
level ground before
you stop ~& .
- All passengers should
leave the car and move to a safe
location (for instance, behind the guardrail)~& .
- Engage the
parking brake to prevent your vehicle from
rolling unintentionally~ &.
- Move
selector lever to position P ~ & .
- If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the
jack and the spare tire out of the luggage
compartment~
page 333 .
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn
off the engine, turn the emergency flashers on and use other
warning devices to alert other motorists.
• Make sure that passengers wait in a safe place away from the
vehicle and well away from the road and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When
one front wheel is lifted off the ground, placing the Automatic ..,
Vehicle care Do-it-yourself service Technical data

-What do I do now? ..._ __________________________________________ _
& WARNING (conti nued)
Tra nsmissi on i n " P" ( Park) wi ll not preve nt th e vehicle from
m ov ing.
• Befor e you chan ge a wh eel, be s ure th e grou nd i s lev el and
firm . If n ece ssa ry , us e a s turdy board under th e j ack .
• Afte r in stalling the sp are whee l, make su re that you r eplace
the flat tire /wh ee l i n it s storage are a properly and t ight en th e
knu rled ret ain in g sc rew s ecu rely .
[ i J Tips
Before changing the wheel, you must activate the jacking mode, so
that the automatic contro ls for the Adaptive A ir Suspension do not
make it more difficult to
lift the vehicle with the jack=> page 179. •
Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and in exactly that order.
1. Activate the vehicle jacking mode==> page 179.
2 . Remove the decorati ve wheel cover* . For more details see
also ==>
page 33 7, "Decorative wheel covers" or
==>
page 337, "Wheels with wheel bolt caps".
3 . Loosen the
wh eel bolts ==> page 338.
4. L ocate the proper mounting point for the jack and align
the jack below that point==>
page 338 .
5. Lift the car with the jack==> page 338.
6. Remove the wheel with the flat tire and then install the
spare ==>
page 340.
7. Tighten all wheel bolts lightly . 8
.
Lower the vehicle with the jack.
9. Use the wheel bolt wrench and
firmly tighten all wheel
bolts==>
page 338.
10. Replace the decorative wheel cov er*.
11. Deactivate the vehicle jacking mode==> page 179.
& WARNING
A lw ays rea d and f ollow all W ARNING S and inf ormation => & in
" Rai sing th e vehicl e" on
page 33 8 and => pag e 341. •
After changing a wheel
A wheel change is not complete without the doing the
following .
-Store and secure the whe el you rep laced in the spare
wheel well.
- Replace the tools and the jack in their proper location.
- Check the
tire pre ssure on the spare wheel immediately
after mounting it .
- As soon as possible, have the
tighten ing torques on all
wheel bolts checked with a torque wrench . The correct
tightening torque is 90 ft lb (120 Nm).
- Have the flat tire
re placed as soon as possible .
[ i J Tips
• If you notice that the wheel bolts are corroded and diff icult to turn
wh ile chang ing a tire, they shou ld be rep laced before you check the
tightening torque. .,_

_____________________________________________ W __ h_a _ t_ d_o_ I_ d _ o_ n_o_ w_ ? _ ___._
Fig. 273 Close-up:
proper positioning of
jack
-Activate the vehicle jacking mode => page 179.
- Engage the parking brake to prevent your vehicle from
rolling unintentionally.
- Move the
selector lever to position P .
- Position the jack below the door sill under the mounting
point
that is closest to the wheel to be changed
~ page 338, fig. 272.
- Extend the
jack under the lifting point on the door sill until
its arm is positioned directly under the lifting point~ &.
- Align the jack so that its arm@=> fig. 273 engages in the
designated lifting point in the door sill and the movable
base ® lies flat on the ground. The base @ must be
vertical under the lifting point@.
- Wind the jack up further until the flat tire comes off the
ground =>& .
The jack must be installed only at the places indicated=::> page 338,
fig. 272. There is exactly
one location fo r each wheel. The jack must
not be positioned at any other location=::>& .
An unstable surface under the jack can cause the vehicle to slip off the
jack . Always provide a firm base for the jack on the ground . If neces-
Vehicle OP-eration
sary place a sturdy board or simila r support under the jack. On hard ,
slippery surfaces (such as tiles) use a rubber mat or similar to prevent
the jack from slipping=> &-
& WARNING
• You or your passengers could be injured while changing a
wheel if you do not follow these safety precautions:
-Positioning the jack under the vehicle at any other place than
those indicated above may damage the vehicle or may result in personal injuries.
- A soft or unstable surface under the jack may cause the
vehicle to slip off the jack. Always provide a firm base for the
jack on the ground. If necessary, use a sturdy board under the
jack.
- On hard, slippery surface (such as tiles) use a rubber mat or
similar to prevent the jack from slipping.
• To help prevent injury to yourself and your passengers:
-Do not raise the vehicle until you are sure the jack is securely
engaged.
- Passengers must not remain in the vehicle when it is jacked
up.
- Make sure that passengers wait in a safe place away from the
vehicle and well away from the road and traffic.
- Make sure jack position is correct, adjust as necessary and
then continue to raise the jack. •
Vehicle care Do-it-yourself service iTechnical data

_______________________________________________ W __ h_a _ t_ d_o_ I_ d_o_ n_ o_w _ ? __ _
Tires with unidirectional tread design
Tires with unidirectional tread design must be mounted
w ith their tread pattern pointed in the right direction .
Using a spare tire w ith a tread pattern intended for
u se in a specific direction
When using a spare tire w ith a tread pattern intended for use in a
spec ific direction, please note the fo llow ing:
• The d irect ion of rotation is marked by an arrow on the side of the
tire.
• If the spare tire has to be installed in the incorrect direct ion, use
t he spare t ire only temporar ily since the tire w ill no t be ab le to
achieve its optimum pe rformance character istics with rega rd to
aquap lan ing, no ise and wear.
• We recommend that you pay particular attent ion to t his fact
during wet wea ther and that you adjust you r speed to match road
conditions .
• Rep lace the flat tire w it h a new one and have it ins talled on your
vehicle as soon as poss ible to resto re the handling advantages of a
unidirectio na l tire .•
Notes on wheel changing
Please read the in forma tion => page 318, "New t ires and replacing
tires and wheels" if you are going to use a spare t ire which is different
from the tires on yo ur vehi cle.
After you change a t ire:
• Check the tire pressure on the spare immediately after installa­
tion.
• Have the wheel bolt t ightening torque checked with a torque
wren ch as soon a s possible by your authorized Audi dealer or a qua l­
i fied serv ice stat ion.
Safety first • With steel and alloy wheel rims
, the wheel bolts are correctly
tightened at a torque of 90
ft lb (120 Nm ).
• If you notice that the wheel bolts are corroded and difficult to
turn while changing a tire, they should be replac ed before you check
the tightening torque.
• R epla ce the flat tire with a new one and have it install ed on your
vehicle as soon as possible. Remount the wheel cover.
Until then, drive with extra care and at reduced speed s.
& WARNING
• If you are going to equip your vehicle with tires or rims which
differ from those which were factory installed, then be sure to
read the information =>
page 318, "New tires and replacing tire s
and whe els ".
• Always make sure the damaged whe el or ev en a flat tire and
the jack and tool kit are prope rly secured in the luggage compart ·
ment and are not loo se in the pa ssenger compartment.
• In an accident or sudden maneu ver they could fly forward ,
injuring anyone in the vehicle .
• Always store dam aged wheel , jack and tools secu rely in the
luggage compartment. Otherwi se, in an accident or sudden
maneuver they could fly fo rward , caus ing inju ry to passengers in
the vehicle .
• Do not u se commercially available tire sealants . Otherwi se, the
electrical component s of the tire pre ssure monitoring system * will
no longer work properly and the sensor for the t ire pressure moni ·
toring sy stem* will have to be replaced b y a qualified work shop .•
Vehicle care Do-it-yourself service Technical data