2009 AUDI S3 wheel torque

___ ln_ t _e_ ll-'"ig ...,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
How the system works
The EDL operates automatically. It monitors the rotational speed of
the drive wheels on an axle with the help of the ABS sensors
=:,
page 194. If a noticeable difference in rotational speed between
the drive wheels on one axle is detected (e.g. on slippery ground
on
one side),
the spinning wheel is braked, thereby transferring power
to the other drive wheel or wheels (all-wheel drivel. This is done up
to a speed of about 60 mph (100 km/h). Noises from the brake
system signal that wheel spin is being controlled.
Driving off
When driving off, always be sure to keep road conditions in mind as
you accelerate. If one drive wheel spins because it is on a surface
with less grip, gradually increase the pressure on the accelerator
pedal until the car starts to move. The wheel less able to transfer
power spins.
Overheating of brakes
To prevent the disc brake of the braked wheel from overheating if
subjected to excessive loads, the EDL cuts out temporarily . The
vehicle remains operational and behaves in the same way as a
vehicle without EDL.
As soon as the brake has cooled down, EDL switches on again auto ­
matically.
& WARNING
• When accelerating on slippery surfaces, such as on ice or snow,
always be careful when depressing the accelerator pedal. Even
with the EDL working, the drive wheels can spin and reduce your ability to control your car. -Risk of crash!
• The increased safety afforded by EDL does not mean that you
can take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
[ i] Tips
If a fault occurs in the ABS, the EDL is also not functioning . This is
indicated by the ABS warning light=:,
page 16. •
Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the driven
wheels from spinning when the car is accelerating.
General notes
The Anti-Slip Regulation System (ASR) is integrated in the electronic
stabilization program (ESP). When the vehicle starts up and acceler ­
ates, the wheels are prevented from spinning by adjusting the
engine power to match the amount of grip available from the road
surface.
How the system works
ASR performs automatically, i.e. without the driver's intervention.
With the aid of the ABS sensors=:,
page 194, ASR monitors the
speed of the driven wheels. If the wheels start to spin, the engine
torque is reduced automatically until the tires find enough grip to
lock onto the road surface. The system is active across the entire
speed range.
The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR will also be out of action .
Activating
The ESP is automatically activated when the engine is started and it
performs a self -test . You can activate a deactivated ASR if required
by pressing the =:,
page 190, fig. 163 button . When it is activated,
the message
ESP/ASR on appears briefly in the display.
Deactivating
You can deactivate the ASR if required by pressing the button (for
less than 3 seconds)=:,
page 190, fig . 163. With the ASR deactivated, .,

_L_T~ir ~e :..:s~ a~n~ d~ w~ h ~e~e~ l~ s '.,_ ______________________________________________ _
Wheel bolts
W heel b olts mus t al wa ys be tigh te n ed to t he cor rect
to rqu e.
The design of wheel bolts is matched to the factory instal led rims . If
d ifferen t rims are fitted, the co rrect w heel bo lts wit h th e rig ht length
and correctly shaped bolt heads m ust be used. This ensures that
w hee ls are fitt ed s ecure ly a nd th at t he brake sys te m funct ions
correctly .
I n certain circums tances, yo u may no t use w heel b olts fr om a
differ ent vehicle -even if it is the same mode l.
&_ WARNING
Improperly tightened or maintained wheel bolts can become loose
causing loss of control, a collision and serious personal injury.
• Always keep the wheel bolts and the threads in the wheel hubs
clean so the wheel bolts can turn easily and be properly tightened.
• Never grease or oil the wheel bolts and the threads in the wheel
hubs. They can become loose while driving if greased or oiled,
even if tightened to the specified torque .
• Only use wheel bolts that belong to the rim being installed.
• Never use different wheels bolts on your vehicle.
• Always maintain the correct tightening torque for the wheel
bolts to reduce the risk of a wheel loss. If the tightening torque of
the wheel bolts is too low , they can loosen and come out when the
vehicle is moving . If the tightening torque is too high, the wheel
bolts and th reads can be damaged and the wheel can become
loose .
0 Note
The specified torque for the wheel bolts is 90 ft lb (120 Nm) with a
t ole ranc e of ± 7,4 ft lb(± 1 0 Nm). To rque whee l bolts diag onally.
After changing a wheel, the torque must be checked as soon as possible with a to
rque wrench -preferab ly by an authorized Audi
dea ler o r qu alif ied wo rksh op.•
Low aspect ratio tires
Yo ur Audi is fac tory-equip ped wi th l ow asp ect rati o tires. Th ese tires
have been thorough ly tested and been selected specifically for your
mod el for thei r su per b p erfo rma nce, road feel an d handl in g u nder
a variety of driving conditions . Ask your author ized Aud i dea ler for
mo re deta ils.
T he low aspec t ra tio o f th ese t ires is ind icate d by a numera l o f 55 or
less in the t ire's size designation. The numera l represents the ratio
of the ti re's s idewa ll height in re la ti on to its tread w idth e xpress ed
in percentage. Conventiona l tires have a height/width ratio of 60 or
mo re .
The performance of low -aspect -ratio t ires is part icularly sensitive to
improper inflation pressure . It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the
inflation pressure is regularly checked and maintained. Tire pres­
sures should be checked at least once a month and alway s before a
long trip=>
page 250, "Checking tire p ressure".
What you can do to avoid tire and rim damage L ow a spect rati o tires can be damaged more easi ly by impact with
potho les, curbs, gull ies or ridges on the road, particu larly if the t ire
is underinflated.
In orde r to minimi ze the occurrence o f im pact da mage to th e tire s
of your vehicle, we recommend that you observe the fo llowing
p reca utions:
• Always ma intain reco mm ende d inflat io n pressu res . C heck your
tire p ressure every 2, 000 miles (3 ,000 km) and add ai r if neces sary .
• D rive car eful ly on roads with potholes, deep gullies or ridges.
Th e impact from d riving th ro ugh o r ove r such o bstac les can
dama ge you r tires . Impact w ith a curb may also cause da mage to
your tires . .,_

llffl.___W_ h_ a_t _d_ o_ l _d _o_ n_ o_ vv_ ? ______________________________________________ _
- Put the tool case and the jack back in p lace in the luggage
compartment.
- Check the tire pre ssure on the spare whee l immediately
after mounting it.
- As soon as possible, have the tightening torque s on all
wheel bo lts checked with a torque wrench . The correct
tightening torque is 90 ft lb (120 Nm) .
- Have the flat tire replaced as soon as possible.
[ i ] Tip s
• If you notice while changing a tire that the wheel bolts are
corroded and difficult to turn, then they should be replaced before
you check the tightening torque .
• Drive at reduced speed until you have the tightening to rques
checked .a
Ap plies to ve hicles: w it h full whee l co vers
Full wheel covers
The wheel covers must be removed to access the wheel
bolts.
Remo va l
- Pull the full wheel cov er off manually.
Inst alla tion
- First press the full wheel cove r onto the rim at the cut -out
prov ided for the valve. Then engage the outer edge of the
f ull whe el cover in the steel rim. •
Applies to vehi cles : w it h deco ra tiv e wh eel co vers
Decorative wheel covers
The decorative wheel covers must be removed first to
access the wheel bolts .
Removing
Fig. 19 1 Whee l
ch ange : remov in g th e
w hee l cover
- Inse rt the hook provid ed with the onboard tool kit into
t h e hole on the cen ter hub piece .
- P ull off the decorative wheel cover => fig . 19 1. •

llffl.,___W_ h_ a _ t_d_ o_ l _d _o_ n_ o_ vv_ ? ______________________________________________ _
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the
vehicle.
~ a'.. ., m
Loosening
Fig . 194 Wheel
change: loosening the
wheel bolts
-Fit the wheel bolt wrench over the wheel bolt and push it
down as far as it will go .
- Close your grip around the
end of the wrench handle for
maximum torque and turn the wheel bolts
counter-clock­
wise
about one single turn in the direction of arrow
~ fig. 194.
Tightening
- Fit the wheel bolt wrench over the wheel bolt and push it
down as far as it will go.
- Close your grip around the
end of the wrench handle for
maximum torque and turn each wheel bolt
clockwise
until it sits tight.
& WARNING
• Using force without control to speed the wheel change up can
cause the vehicle to slip off the jack and cause serious personal
injuries.
• Do not loosen the wheel bolts more than one turn before you
raise the vehicle with the jack. -Risk of injury!
[ i ] Tips
• Never try and use the hexagonal socket in the handle of the
screwdriver to loosen or tighten the wheel bolts.
• If a wheel bolt sits very tight, you may find it easier to loosen by
carefully pushing down on the end of the wheel bolt wrench with
one foot only . As you do, hold on to the car to keep yourself stable
and take care not to slip. •
Raising the vehicle
The vehicle must be lifted with the jack first before the
wheel can be removed.
Fig . 195 Wheel
change: mounting
points
for the lifting
jack ..

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•
• T he wheel bolts should be clean and easy to turn . Check for dirt
and corrosion on the mating surfaces of bo th the wheel and the
hub. Remove all dirt from these surfaces before remounting the
whee l.•
Tires with unidirectional tread design
Tires with unidirectional tread design must be mounted
with their tread pattern pointed in the right direction.
Using a spar e tir e with a tread pa ttern intended for u se
in a sp ecific direc tion
When using a spare tire with a tread pattern intended for use in a
specific direction , p lease note the following:
• T he direction of rotation is marked by an arrow on the sid e of the
tire .
• I f the spare tire has to be installed in the incorrec t direction in the
event of a flat tire , use the spare tire on ly temporarily since the tire
wi ll not be ab le to achieve its optimum performance characteristics
with regard to aquap laning, noise and wear .
• We recommend that particula r atten tion be pa id to this fact
dur ing wet weather and that you adjust your speed to match road
conditions.
• Replace the flat tire with a new one and have it installed on your
vehicle as soon as possible to restore the handling advantages of a p roper ly pointed d irection -dependent t ire. •
Notes on wheel change
Please read the information=> page 255, "New tires and replacing
tires and wheels" if you are going to use a spare tire which is
different from the tires on your veh ic le.
Aft er you change a tire :
• Che ck the ti re pre ss ure on the spare immed iately aft er
mounting .
• Have the wheel b olt t ight en ing to rque checked with a torque
wrench a s soon a s po ssible by your authorized Audi dea ler or a
q u alified service stat ion .
• On steel and a lloy wheel rims , the wheel bolt s are correctly tight­
ened with a t orque of 90 ft lb (1 2 0 Nm l.
• If you noti ce w hile changing a tire that the wheel bolt s are
c o rroded and d iff ic ult to turn , then they should be repla ced befo re
you check the tightening torque.
• Repl ace the fl at t ir e w ith a new one and hav e it installed o n your
vehicle as soon as pos sib le . Remount the wheel cover .
Until then , drive wi th ext ra care and at redu ced speeds.
& WARNING
• If you are going to equip your v ehi cle wi th tire s or rim s wh ich
diffe r from tho se which were fa ctory installed , th en be sure to r ead
the infor mation
=> page 255, " New tires and repl acing tire s and
wheel s".
• Alway s ma ke sure the d amag ed w heel or e ven a flat t ire and
the jack and tool kit ar e properly secured in the lugg age comp art­
ment and are not loose in the p asse nger co m partment .
• In an a ccident o r sudden maneu ver th ey could fl y fo rw ard ,
injur ing anyo ne in th e vehi cle .
• Alway s store damaged wheel , ja ck and tool s se curel y in
luggag e compartment . Oth erwi se, in an accid ent or sudd en
m aneuv er the y could fly fo rward, c au sing in jur y to pa ssenge rs in
the vehic le . •
Do-it-yourself service

___ A_l.:,. p _h_ a_ b_e _t _ic _ a_l _in _ d_e _x ____________________________________________ _
What happens if you wear your safety belt too
loose? .................. ...... 142
What happens to unbelted occupants? . 139
What impairs driving safety? ... .. .... 127
What should I do after changing a wheel? . .
251
What should I do afte r replacing wheels? ...
251
Wheel bolts Anti -theft wheel bo lts . . . . . . . . . . . . . 275
Torque . ... ... ... ........ .... ... 262
Wheel change . . . . . . . . . . . . . . . . . . . . . . 272
Wheels .. ...... ... .. .... .... ...... . 243
Checking tire pressure ............ 250
Cold tire inflation pressure . ....... 247
General notes .... .... .... ... .... 243
Glossary of tire and loading terminology
244
New tires and wheels . . . . . . . . . . . . . 255
Tires and vehicle load limits 251
Wheels/Tires Cast alloy ... .. .... .... .......... 212
Stee l wheels . . . . . . . . . . . . . . . . . . . . 211
When must a safety belt be replaced? .. 140
When must the airbag system be inspected?
158
When should I adjust the tire pressures?
251
When should I check the tire pressures? 251 Windows
Cleaning .. .... ...... ........ ... . 210
Convenience close/open feature .. ... 47
Defogging ..... .. ... ... .... .... . 101
Defrosting . . . . . . . . . . . . . . . . . . . . . . 101
Rapid defrosting/defogging ... ..... 104
Windshield washer container . ...... .. 241
Windshield washer fluid . ...... .... ... 33
Windshield wipers Changing the rear wiper blade ...... 68
Installing new wipe r blades ......... 67
Service position . . . . . . . . . . . . . . . . . . . 66
Winter operation Battery ................. .... .... 237
Coolant system ................. . 232
Tires ... .. .... ...... ... .. ..... .. 196
Windows . ..... ... .... .... .... .. 210
W inter tires .. .... ..... .. .... .... ... 260
All-wh eel driv e .... ..... ..... .. ... 260
Wiper and washer system . . . . . . . . . . . . . 63
Intermittent wiping . . . . . . . . . . . . . . . . 63
One -tap w iping .... .... .... .... ... 63
Rea r w indow wiper . . . . . . . . . . . . . . . . 65
Wiper blades
Installing new wiper blades ..... .... 67
See also Windshield wipers ......... 68
X
Where can I find the tire pressures for my Xenon-Lights ............. .......... 285
car? .... ....... .... .... ...... . 250
Why safety belts? . . . . . . . . . . . . . . . . . . . 137