2011 AUDI S3 wheel

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ESP works in co njunction w ith ABS~ page 192 . If there is malfunc­
t ion in the ABS, ESP is also inoperat ive.
& WARNING
• The limit s of phy sics cannot be su spended by ESP. Even in vehi­
cles with ESP, you should always adapt your driving to road and
traffic conditions. Thi s is particularly true on a slippery and wet
road. Do not be tempted by the increased safety provided to take
ri sk s - danger of an a ccident!
• Please note that when ESP / ASR is deact ivated , the drive
wheel s can spin on icy and slippery roads and the vehicle can break
away -danger of skidd ing! •
Switching on and off
Fig. 155 C ente r
con sole w ith ESP
s wit ch
Th e ESP i s automa tically activ ated w hen the eng ine is st arted, and i t
performs a self-test. As soon as the test is comp leted, the system is
in normal operat ing mode .
Deactivating
ES P s hould no rm ally be activate d at all times beca u se this ens ures
optimum veh icle stability. Only in some cases it does make sense to
de activ at e t he Elect roni c Stabili ty Pr ogr am ( ES P) by p ress ing the
button~ fig. 155. Deact ivat io n i s indicated by the ESP lamp
J! in the
Controls and equip­
ment Safety first
Vehicle operation
instrument cluster flashes . The message ESP OFF appears in the
ins trument cl uste r. Ant i-Slip Regula tion is comp le tely deact iv a te d
and the stab ilizat io n effects from the ESP system are lim ited. This
ma kes a more agile and spo rty driving sty le possible, but the full
extent o f th e stabilization function is not available .
Activating
~~~= Press the [ESP OFF ) button again~ fig. 155 . The ind icator lig ht
goes out . The message
ESP ON appears br iefly in the ins trumen t
cluster disp lay .
& WARNING
You should only switch the ESP off if your driv ing ability and the
traffic situation allow. Please note that when ESP /ASR i s dea cti­
vated, the drive wheels can spin on icy and slippery roads and th e
vehicle can break away -danger of skidding!
[ i ] Tips
If Audi magnetic r ide* is ma lf u nct io ning, the ESP may not sw itch off
or it may switch off automatically . •
Electronic differential lock (EDL}
The ele ctr onic dif ferential lock mo nit ors the rot ational
s p eed of the d rive wheels .
General notes
The elec tron ic differe ntia l lock ( EDL) helps the ca r to sta rt movin g,
acce le ra te and climb a gradient on surfaces provid ing poor or almost
no grip. Without E DL, this would be difficult, if not impossible.
How the system works
Th e E DL operates au tomatically . It mo nitors the rotational s peed of
t he drive wheels on an axle with the he lp of the ABS sensors
~ page 19 2. If a noticeable difference in rotational speed between ..
Vehicle care Do-it-yourself service Technical data

Intelligent technologyL ______________________________________ _
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 drive) . This is done up to a
speed of about 60 mph (100 km/h). Noises from the brake system
signal that wheel sp in 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 ab le to transfer power
spms .
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 operat ional and behaves in the same way as a vehicle
without EDL .
As soon as the brake has cooled down, EDL switch es on again auto­
matically.
Electronic limited slip differential*
In vehicles w ith front wheel drive*, an electronic lim ited slip differen­
tial engages when driving on curves. The brakes are applied spec ifi­
cally to the front wheel that is on the inside of the curve. This mini­
m izes sliding on the front wheels and enables precise and neutral
driving through curves. The electronic limited slip differential does
not engage when d riving in wet conditions or snow.
& WARNING
• When accelerating on slippery surfaces, such as on ice or snow,
always be careful when depressing the accelerator pedal. Even
with the EDL and the ele ctronic limited slip differential working,
the drive wheels can spin and reduce your ability to control your
ca r. -Risk of crash!
& WARNING (continued)
• The increased safety afforded by EDL and the electronic limited
slip differential 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 fau lt occurs in the ABS, the EDL is also not f unct ioni ng. 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-Sl ip Regu lation System (ASR) is integrated in the electronic
stabili zation program (ESP) . When the vehicle starts up and acceler­
ates, the wheels are prevented from sp inning by adjust ing the engine
power to match the amount of grip available from the road surface.
How the system works
ASR performs automatica lly, i.e. without the driver's intervention.
With the aid of the ABS sensors=>
page 192, 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 shou ld
occur in the ABS, the ASR w ill also be out of action .
[I) Tips
To ensure that the ASR works properly, all four wheels must be fitted
with identical tires. Any differences in rolling radius of the tires can .,

_________________________________________ I_ n_ t_ e_ ll_,igent technology ,__E~-
cause the system to red uce eng ine power when t his is not desired .
See also =>
page 2 57 , "N ew tir es and rep lacing tires and whee ls". •
Braking
General Information
What af fect s braki ng effici ency ?
Operating condit ions and driv ing habits
Th e br akes on today's autom obil es are s till subjec t to we ar,
depend ing large ly on operating conditions and driving habits=>& .
O n veh icles t hat are ei ther driven mos tly in sto p-an d-go ci ty traff ic or
are driven ha rd, the bra ke pads s hould be checked by your author ized
Aud i dealer mo re o ften t han specif ied in the
Warranty & Mainte­
nance booklet .
Failure to have your brake pads ins pected can resu lt
in re duced brake pe rformance.
O n steep slopes, you shou ld use the brak ing effect of th e engine . This
way, yo u prevent unnecessary wea r on the brake system. If yo u must
u se your b ra kes, do n ot ho ld the bra kes down conti nuou sly. P u m p the
brakes at intervals .
N oises may occur when brakin g dependin g on s peed, braki ng fo rce
and outs ide cond itions s uch as temperatu re and hum id ity.
Moisture or road salt
If you are driving fas ter than 50 mp h (8 0 km/h) and th e w indshield
w ipers are on , the b ra ke pads w ill briefly touch t he br ake discs in
reg ula r intervals so as to improve react io n ti me when brak ing on wet
s u rfaces. Yo u, the drive r, will not not ice anything .
Under cert ain con ditions , for ex am ple , w hen driving throug h w ater or
very heavy rain, or even after was hing your veh icle, the bra king effect
c an be redu ced due to moi sture (or in fr eezin g condi tion s ice) on the
brake pads . A few cautious brake app lications sho uld dry off the
bra ke p ads or remove any ice coa ting s.
Controls and equip­
ment Safety first Vehicle operation
T
he effect iveness of the brakes can be reduced when the vehicle is
dr ive n o n a salt-c overe d road and t he brakes are not us ed. Likew ise,
you clea n off acc umulated salt coat ing from brake d iscs and pads
w ith a few cautio us app lications of the brake=>& .
Corrosion
There ma y be a te nd ency fo r dirt to b uild up o n the brak e pa ds and
co rrosion to form on the discs if the car is not dr iven regu la rly o r only
for short trip s wit h litt le u se of the bra kes.
If th e bra kes are not used freq uent ly, or if co rrosion has formed o n
th e discs, it is advisable to clean off the pads an d discs by brak ing
fi rmly a few times fro m a mode ra tely high speed =>& .
Faults in the brake system
If yo u should no tice a sudden increas e in brake pedal t ravel, then one
o f the two brake ci rcu its may have failed =>& .
Low brake fluid level
Malf u nctions can occu r in t he brake sys tem if the brake fluid level is
t oo low . T he bra ke fluid level is mo nitored e lectro nica lly .
Brake lining wear status
Brake lining wear may be checked by v isua l inspect ion of the condi­
t ion of the bra ke pa ds through the o penings in the wheel. If neces ­
sary , the whee l may be removed for th is inspect ion=>
page 27 2,
"Wheel c hange" .
& WARNING
• You should perform braking maneuvers for the purpose of
cleaning the brake system only if road conditions permit . Other
road users must not be put at risk -you may cause an accident!
• Before descending a steep grade, reduce speed and shift trans­
mission into a lower gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or too often. This could
cause the brakes to get hot and diminish braking efficiency.
~
Vehicle care Do-it-yourself service Technical data

Intelligent technology
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& WA RNING (conti nu ed )
• Do not "ride the brakes " by re sting your foot on the pedal when
you do not intend to brake . Thi s may cause the brakes to overheat,
premature wear and increased stopping distance.
• Under certain climatic and operating condition s such as
pa ssing through water, dr iving in heavy rain or after washing the
vehicle, the effectiveness of the brake s can be reduced . In winter ,
ice can accumulate on the brake pads , linings , discs and drums .
Carefully apply brakes for a te st. Brakes will dry and ice coatings
will be cleaned off after a few careful brake applications.
• Driving for an extended period of time on salt-covered roads
without using your brakes can al so affect br aking efficiency. Clean
off accumulated salt coating from brake disc s and pads with a few
careful brake applic ations.
• If you damage the front spoiler , or if you in stall a different
spoile r, be sure the air flow to the front brakes is not obstructed.
Otherwi se th e brake system could overheat reducing the effective­
ness of the entire brake system.
• Failure of one brake circuit will impair the braking capability
resulting in an inc reased stopping distance. Avoid driving the
vehicle and have it towed to the nearest authorized Audi dealer or
qualified wo rkshop .
.J
Brake booster
T h e brake booste r adds ext ra braking p ower.
The brake booster works with vacuum pressure which is created on ly
w hen the eng ine is ru nnin g=>&.
& WARNING
• Never let the vehicle roll to a stop with the engine shut off.
• If the brake boo ster i s not working , for example when towing
your veh icle , or because the brake booster has somehow been
& W ARNING (continued )
damaged , the brake pedal must be p ressed considerably harder to
make up for the la ck of booster assi stan ce. •
Functioning of Anti-Lock Brake System
{ABS)
ABS prevents the wheels from l ockin g up under br aking.
Th e ABS contr ibutes effectively to vehicle co ntrol s ince it prevents t he
w heels from
locking when the brakes are applied . This means that the
veh icle rema ins steerable and is less likely to skid .
With ABS you do not need to pump the brake. Just hold the brake
pedal down .
However, do no t expect that the ABS shortens bra king d istance under
all circumstances . When dr iv ing on grave l or on newly falle n snow on
top of icy s urfaces, braking d istance may be even longer, therefo re,
under these circumstances, it is especially important that yo u drive
slowly and with g re at c are.
How the ABS system works
An au tomatic c hec k is made when a speed of about 4 mp h (6 km/ h) is
reached. When t his happens, a pump ing noise can be heard.
If an ind ivi dual wheel begi ns to rot ate too s low ly in relat ion to ve hicle
speed and tends to loc k, t he ABS automatically reduces brake pres­
s ur e to p revent t hat wheel from lo cking.
T hi s au tomatic adjustment p rocess w ill cause a
s light vibration of
the bra ke pedal and some noises to a lert you that vehicle speed must
be adapted to ex isting road and traffic co nditions .
& WARNING
Although the ABS is very effective, always remember that braking
capability is limited by tire traction. Always adjust your driving ...

Intelligent technologyz..__~~-____________________________ __.
& WA RNING (c on tinued )
speed acco rding to the road and traffic conditions. Do not let the
e xtra safety afforded by th e ABS tempt you into taking extra risk s.
The ABS cannot overcome the laws of physics .
[ i J Tips
• If ABS is not funct ioning properly, a warning light will come on .
See ~
page 16 .
• If a fault occurs in the ABS, the EDL is also not functioning. This is
ind ic at ed by t he A BS w arni ng light. •
Brake assistant
The broke assistant is designed to achieve the optimum
br oking effect.
Th e b rake ass istant he lps to inc rease t he effective brak ing powe r and
thus to ac hieve a shorter stopping distance.
If the driver presses the
bra ke ped al ve ry qu ickly, the b rake assistant au toma tically bo osts the
brak ing force to the max imum level, up to the point where the anti­
lo ck brak e function (ABS) in tervenes to stop the whee ls from l ocking.
You should then keep the brake pedal pressed unti l the vehicle has
bra ke d to t he require d spee d. T he bra ke ass istan t swi tches itse lf off
as soon as you re lease the b rake pedal.
Th e brake assistant will not be operative if there is a ma lfu nctio n in
t he A BS .
& WARNING
Please remember that the accident risk always increases if you
drive too fast , especially in corners or on a slippery road , or if you
follow th e vehicle ahead of you too closely. An increased accident
risk cannot be compensated even by the brake assistant, so always
maintain a safe speed .•
Controls and equip­ ment Safety first Vehicle operation
Electro-mechanical power assist
---
T
he elec tro-m echa nic al po wer as sist hel ps the dri ver
w he n steering .
The degree of power assist is electronically matched to vehicle speed.
Th e powe r steering system ass ists the dr iver so t hat he ca n stee r the
vehicle with reduced physical effort.
Power steering will not wor k if the engine is off. As a result, the
stee rin g wheel will b e ha rd to tu rn .
& WARNING
If the system deve lops a problem, you must seek qualified profes­
sional as sistance.
0 Note
If the re is an elect ronic mal func tion, servotronic will s till f unction
li ke a conven tional power steering system, p rovid ing a constant
steering support fo rce that is no longer proportionate to the ve hicle
spee d. This is most noticeab le whe n tur ning the s teer ing whe el at low
speeds ( for example when park ing), -more effort will be required
t h a n usual.
• Be aware o f the d ifferent than usual steering response and adjust
your st eering force a ccordi ng ly.
• Have the prob lem checked and set r ight by an autho rize d Aud i
dealer as soo n as possib le.
• If a steering ma lf u nction occ urs, t his is signaled w ith the or. ~
indicator l igh ts a nd a wa rning tone, see .
[I] Tips
• If the powe r stee ring system shou ld fa il, or if the engine is not
run ning (for example, while being towed), you w ill still be ab le to
stee r the veh icle. However, more effort wi ll be required to do so . .,.
Vehicle care Do-it-yourself service Technical data

Intelligent technologyL _______________________________________ _
• If the power steering system is not funct ioning properly, contact
your au thori zed A ud i dea le r i mmediately. •
Applies to ve hicl es: wit h A ll Whe el D rive
Driving with your quattro®
With All Wheel Drive, all four wheels are driven.
General information
With All Wheel Drive, power is distributed to all fo ur whee ls. This
happens automatically depending on you r driving s tyle a nd the road
conditions at the time. See also =>
page 189, "Electronic differential
lo ck (E DL)".
W inter tires
W hen d riving in the winter, your vehicle with A ll Whee l Drive has an
advantage, even with reg ular t ires . In winter road cond it ions it may
be advisab le to mou nt w inte r ti res (or all-se aso n t ires) for imp roved
dr iveability and braking: these tires must be mounted on
all four
wheel s.
See also => page 261, "Win ter tires".
Snow chains
W he re snow c ha ins are mand atory on certain roads, this norm ally
also app lies to veh icles with all-wheel drive=>
page 262, "Snow
c hains".
Replacing wheels/tires
Veh icles with All Wheel Drive m ust always have t ires of the same s ize.
Also avoid tires with different tread depths. For details see page
=>
page 257, " N ew tires and replac ing ti res and wheels".
Off-Road driving?
Your Audi does not have enough ground clearance to be used as a n
off-road vehicle. It is therefore best to avoid rough tracks and uneven
te rrain as much as poss ib le. Also refe r to=>
page 199.
& WARNING
Always adjust your driving to road and traffic conditions . Do not
let the extra safety afforded by the all-wheel drive tempt you into
taking extra risk s.
• Although the quattro ®all -wheel drive is very effective, always
remember that braking capacity is limited by t ire traction. You
should therefore not drive at exce ssive speed s on icy or slippery
road surfaces .
• On wet road surfa ces, be careful not to drive too fast becau se
the front wheels could begin to slide on top of the water (hydro­
planing ). If this should occur, you will have no warning from a
sudden increase in engine speed as with a front -wheel drive
vehicle. Always dr ive at speed s which are adjusted to the road
conditions -risk of crash! •
Energy management
Starting ability is optimized
Energy managemen t controls the distribution of elec ­
trical energy and thus optimizes the availability of elec­
t r ical ene rgy for s tarting the en gin e.
If a vehicle w ith a convent ional energy sys tem is not d riven fo r a long
period of time, t he battery is discha rged by idling cur rent consumers
(e .g. immob ilizer). In ce rtain c ircumstances it can result i n there
being insufficient energy availab le to start the engine .
Inte lligent ene rgy m anageme nt in yo ur vehicle h andles the dis tribu­
tion of electrical energy. Starting ability is markedly improved and
t he life of the bat tery is ex tende d.
Bas ically, energy management consis ts of
battery d iagnosis, idling
current management
and dynamic energy management . ~

Parking on a slope
Do not park with a trailer on a slope. If it cannot be
avoided, do so only after doing the following:
When parking:
-Apply the foot brake.
- Have someone place chocks under both the vehicle and the
trailer wheels.
- With chocks in place, slowly release the brakes until wheel
blocks absorb the load.
- Turn the wheels towards the curb.
- Apply the parking brake.
- Place an automatic transmission in
P, respectively a
manual transmission in first or reverse gear.
When restarting after parking:
- Start the engine .
- Shift transmission into gear .
- Release the parking brake and slowly pull out and away from the wheel blocks .
- Stop and have someone retrieve the wheel blocks.
[I] Tips
If you move the selector lever of the automatic transmiss ion to P
before applying the parking brake and before blocking the wheels,
you may have to use more force later to move the leve r out of the
P
position. •
Controls and equip­ ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

___ C_ le_ a_n_ i _n_ g=- a_ n_d__, p_ ro_ t_e _c_ t_ i_ o _ n ___________________________________________ _
Cleaning and protection
General information
Regular care preserv es ve hicl e val ue.
Any automobile is exposed to industria l fumes, co rrosive road salt,
e tc. A well ca red for Audi c an look lik e new many ye ars after pur chase.
Regu lar and correct care w ill contribute to mai nta in ing t he beauty
a nd valu e of your Au di.
Furthermore, good care may be a condition for substantiating a
warranty claim should corrosion damage or paint defects occur.
Yo ur au thori zed Audi d eale r ha s a var iety of dedicated vehicle- care
products
and can advise w hich ones to use for clea ning the exterior
an d inter io r of your ve hicle.
W het her you use products recommended by Aud i or other comme r­
cially availab le cleaning agents , please make sure yo u appl y them
co rrectly .
& WARNING
• Cleaning agents may be poisonous . Keep them out of the reach
of children.
• Heed all caution labels .
• Always read directions on the container before using any
product. Follow the directions carefully.
• Most chemical cleaners are concentrated and have to be
diluted .
• Use spot removing fluids only in well ventilated areas.
• Do not use gasoline, kero sene , diesel fuel , nail polish remover
or other volatile fluids . They may be toxic, flammable or
hazardous in other ways. Do not wash, wax or dry the vehicle with
the ign ition on or the engine running .
& WARNING (conti nued )
• Do not clean the under sides of chassi s, fenders , wheel cover s,
etc. without protecting your hands and arms. You may cut your­
self on sharp-edged metal parts.
• Moisture and ice on brakes may impair braking efficiency
~ page 191, "General information ". Test the brakes carefully
each time you wash the vehicle .
'£> For the sake of the environment
Select only envir onmenta lly fr iendly clea ning produc ts . Leftover
cleaning pro ducts sho uld not dis posed of i n the household waste .•
Care of exterior
Washing
F re quent w ashin g protec ts th e vehicle.
T he best protection aga inst env ironmental influences is frequent
w ashi ng and w ax in g.
How often th is is required depends on:
• How much the vehicle is used
• Where the veh icle is parked (garage, in the open unde r trees, etc .)
• Th e season al and wea ther conditions
• Environmental influences
Th e longer bird droppings, insects, tree resin, road and indus tria l
gr ime, ta r, soot, road sa lt and ot he r materials remain on the veh icle
body, t he mo re lasting their destructive effects wi ll be. .,.