2011 AUDI S3 brake

_________________________________________ 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
'-----------------------------------------------
& 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

Driving and environment
----------------------------------------------'
Driving and environment
The first 1,000 miles (1,500 km)
and afterwards
New engine
The engine needs to be run-in during the first 1,000 miles
(1,50 0 km) .
For the first 600 miles (1,000 kilometers):
- Do not use fu ll thrott le .
- Do not drive at engine speeds that are more than 2/3 of
the maximimum permitted RP M.
From 600 to 1,000 miles (1 ,000 to 1 ,500
kilometers):
- Speeds can
gradually be increased to the maxim um
perm iss ible road or engine s peed .
During and after break-in period
- Do not r ev the eng ine up to high speeds when it is co ld.
T h is app lies w hether th e t ransmission is in N ( Neutral) o r
1 n gear .
After the break-in period - Do not exceed maximum engine speed under any circum ­
stances.
- U pshift i nto the nex t higher gear
before reach ing t he red
area at t he end of the tachometer scale==>
page 8.
During the first few hours of driving, the engine's interna l friction is
hig her than later w hen all the moving pa rts have been broken in. How
Controls and equip­ ment Safety first Vehicle operation we
ll th is b reak-in p rocess is done depends to a cons iderab le extent on
the way the veh icle is d riven dur ing the f irst 1,000 miles (1,500 kilo­
meters).
0 Note
E x tremely high e ngine speeds are automatic ally reduced. However,
these RPM- limits we re prog rammed for an engine well ru n-in, not a
new e ng ine.
~ For the sake of the environment
Do not drive w it h un necess arily hig h eng ine speeds -up shift ing ea rly
saves f uel, reduces noise and protects the environme nt.•
New tires
If y our veh icle is run nin g on n ew tir es, dr ive parti cula rl y
carefu l for the fi rst 30 0 mil es (500 kil ometer s) af ter fit ting.
& WARNING
New tires tend to be slippery and must also be "broken -in ". Be
sure to remember this dur ing the first 300 miles (500 kilome ­
ter s) . Brake gently. Avoid following closely behind other vehicles
or other situations that might require sudden, hard braking.
u
New brake pads
Remember tha t new brak e pa ds d o no t hav e a fu ll braki ng
eff ect d uri ng the first 250 mi les (400 k ilomet ers) after they
are i nsta lled.
Vehicle care Do-it-yourself service Technical data

Driving and environment
New brake pads have to be "burnished in" before they have optimal
grab ~& .
Dur ing the break-in period, you should avoid putting severe loads on
the bra kes. Severe loads incl ude, for example, sudden hard braking,
in part icu lar at very high speeds or, for examp le, on mountain passes .
& WARNING
Until they develop th e ma ximum "bite " for b est stopp ing pow er,
the surfaces on new brake pads require some "breaking-in" during
the in itial 100 to 150 mile s (150 to 200 kilometers ) of normal
city dr iving. You can compensate for this by p ress ing the brake
pedal more firml y. Thi s applies whenever n ew pads are in stalled .•
Driving through water on roads
---
N ote the following to avoid vehicle damage when driving through
water, fo r example on flooded roads:
• Th e wate r mus t not be any higher th an the bottom of the ve hicl e
body.
• Do not dr ive faster t han wal king speed.
& WARNING
After driving through water, mud , slush, etc ., th e brak es may be
slow to take effect because of wet brake rotors and pads . Dry the
brakes first by braking carefully to restore the full braking effect .
0 Note
Vehicle components such as the engine, transmission, suspension or
electrical system can be severely damaged by driving thro ugh water.
W Tips
• Check t he dept h of the wa ter before dr iv in g thro ugh it.
• Do not stop the vehicle, drive in reverse or sw itch the engine off
when driving through wate r.
• Keep in m ind t hat on coming vehicles may cre ate w aves t hat raise
the water level and make it too deep for your vehicle to drive thro ugh
safe ly.
• Avoid dr iv in g through sa lt water because it can cause corros ion. •
Catalytic converter
It is very important that y our emiss ion con trol system
(ca talyti c converte r) is func tioning pr operly to ensure
that your vehicle is running i n an environm entally sou nd
manner.
- Always use lead-fre e gasoline => page 219, "Fu el supply".
- Never run the ta nk down a ll the way to empty .
- Never p ut too much mo tor o il in your engine=>
pag e 232,
"Adding engine oil~" -
- Neve r try to pu sh- or tow-start you r vehicle.
T he catalytic converter is an efficient "clean- up" device b uilt into the
exhaust system of the veh icle. The cata lytic converter b urns many of
t he poll uta nts in the e xhaust g as before they are released in to the
atmosphe re.
Th e ex clusive use o f unleaded fuel is c ritic ally impor tant for the life of
the cata lytic converte r and proper f unction ing of the engi ne. ..,

Driving and environment
This is especially true for vehicles with low-slung chassis (sports
chassis) and fully loaded vehicles. •
Operate your vehicle economically
and minimize pollution
General
Your personal style of driving will determine the economy
of your vehicle, as well as exhaust and noise levels.
Fuel economy, env ironmental impact, and wear on your eng ine,
brakes and tires largely depend on three factors:
• your personal driving style
• operat ing conditions
• technical lim itations
If you anticipate what you need to do next and drive economically,
you can easily cut your fuel consumpt ion by 10-15 percent. This
sect ion wi ll g ive you some tips on how you can help the environment
and your pocketbook.
[I) Tips
The consumption estimates as published by ENVIRONMENTAL PROTECTION AGENCY (EPA) and Transport Canada may not co rre­
spond to your actual consumption on the road, which will vary
depending upon vehicle load and speed, road and weather conditions,
trip length, etc. •
Drive smoothl} and keep a lookout ahead
Vehicles use the most fuel when they are accelerating.
Avoid unnecessary accelerating and braking .
Vehicles use the most fuel when they are accelerating. If you antici­
pate what is go ing to happen next, you will need to brake less and,
thus, accelerate less. Let the vehicle coast whenever possible - for example when you see that the next traffic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and improves your
mileage.
- Try and keep well below your car's maximum speed.
Accelerating gently reduces fuel consumption, engine wear, and does
not d isturb the env ironment.
Fuel consumption, exhaust emissions and engine noise increase
disproportionately at high speeds. If you drive at approximately three
quarters of top speed, fuel consumption will be reduced by one half.
Never drive faster than the posted speed limit and weather condi ­
tions perm it. •
Reducing unnecessary idling
Even when your car is just idling it burns up fuel.
- Shut the engine off when you are not driving the vehicle .
- Do not warm up the vehicle by letting the engine run at idle .
It makes sense to shut off the engine in traffic jams, when waiting for
trains to pass at railroad crossings, or at traffic lights that have long
wa its on red. Turn ing the eng ine off for just 30-40 seconds saves
more fuel than is burned starting the engine again.
It takes a long time for the engine to warm up fully when it is running
at idle. However, wear and noxious emissions are espec ially high
when the engine is warming up . So you shou ld drive away as soon as .,_

Trailer towing
"---------------------------------------------------
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor ­
tation .
If you p lan to tow a t railer, p lease remember that the additional load
w ill affect durability, economy and performance.
Tr ailer towing not on ly p laces mo re s tress on the vehicle, it also calls
for more concentration from the driver.
For this reasons, a lways fo llow the operating and driv ing instr uctions
prov ided and use common sense .•
Technical requirements
Trailer hitch
Use a we ight-carrying hitch conforming to the gross trai ler weight .
Th e h itch mus t be suit able for your veh icle and t railer and mus t be
mounted securely on the vehicle's chassis at a
technically sound l oca­
t ion. Use on ly a tra ile r hi tch w ith removable b all moun t. Alw ays check
w ith the trailer hitch manufacturer to make sure that you are using
t he correc t hitch.
Do not use a bumper hitch .
The hitch must be installed in such a way t hat it does not interfere
w ith the impact -ab sorb ing bumper system. No mod ifi cations s houl d
be made to the vehicle exhaust and brake systems . From t ime to
t ime, che ck t hat all hitch mou nting bolts rema in securely faste ned.
W hen you are no t tow ing a trai ler, remove the trailer hitch ball
mount. This prevents the hitch from ca using damage should your
veh icle be s truck from behind=>&.
Tire pressure
When towing a tra iler, inflate the tires of you r vehicle to the cold tire
pressu re listed under "Full lo ad"on t he st ick er o n the r ight doo rjamb.
I n flate trailer t ires to trai ler and tire manufacturers' specifications .
Lights
The headlight settings should be checked with the tra iler attached
befo re d riving o ff. Have the headlights adjusted as necess ary s o that
you can see the road ahead but not b lind oncoming t raffic.
Check to make s ure bo th vehicle and t railer lights a re wor king prop­
er ly.
Engine cooling system
Towing a trailer ma kes t he engin e work harder. It is important t hat
t he cooling sys tem' s per formance stands up to the add ition al stra in.
M ake sure that the coo ling sys tem has eno ugh fluid .
Trailer brakes
If your trai ler is equipped with a braking system, check to be su re that
it confo rms to all regula tions .
Th e tra ile r hydrau lic brake system must not be directly con nected to
the vehicle's hydraulic b rake system.
Safety chains
Be sure trailer safety cha ins are p roper ly connected from the t rai ler
to the hitch on the vehicle. Leave enough s lac k in t he chai ns to permit
t u rni ng corners. When you insta ll safety chains, ma ke s ure t hey will
not d rag on t he road when yo u are d riving .
The chai ns should cross under the trailer tongue to prevent it from
drop ping in ca se of separat io n from t he hitch.
Trailer lights
Trailer lights must meet all regulat ions. Be su re to chec k w ith your
author ized A udi dealer for correct wiring, switches and relays. _.

Mirrors
If you are unable to see the traffic beh ind you using the regular
outs ide mirrors, then you
must i nstall extended mirrors. It is impor­
tant that you
always have clear vision to the rear.
& WARNING
After removing the trailer hitch, do not store it in your vehicle. In
case of sudden braking, the hitch could fly forward and injure you
or your passengers. •
Operating instructions
Maximum trailer weight
A trailer for your vehicle is lim ited to a typ ical class 1 or class 2 tra iler.
Trailer load distribution
Be sure the load in the trailer is held securely in place to guard aga inst
shifting, be it fo rwa rd, backward or sideways.
Never allow a passenger to ride in a trailer ~ & in "Driving instruc­
tions".
Tire pressure
When towing a tra iler, inflate the tires of yo ur veh icle to the co ld tire
pressure listed unde r "Full load" on the sticker on the right doorjamb.
Inflate trailer tires to trai ler and tire manufacturers' specifications.
Lights
T he headlight settings sho uld be checked with the trailer attached
before driving off . Adjust as necessary so that you can see the road
ahead but not blind oncoming traffic.
Check p roper working of vehicle and tra iler lights.
Controls and equip­
ment Safety first Vehicle operation
Safety
chains
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough s lack in the chains to permit
turning corners . When you install safety chains, make sure they will
not drag on the road when you are driving.
The chains should cross under the trailer tongue to prevent it from
dropping in case of separation from the hit ch. •
Driving instructions
Driving with a trailer always requires extra care and
consideration.
To obtain the best possible handling of vehicle and trailer,
please note the following:
- Do not tow a loaded trailer when your car itself is not
loaded .
- Be especially careful when passing other vehicles.
- Observe speed limits.
- Do not drive at the maximum permissible speed .
- Always apply brakes early.
- Monitor the temperature gauge.
Weight distribut ion
Towing a loaded trailer with an empty car results in a highly unstable
distribution of we ight. If th is cannot be avoided drive at very low
speeds only to avoid the risk of losing steering control.
A "balanced " rig is easier to operate and control. This means that the
tow vehicle should be loaded to the extent possible and permiss ible
whi le keeping the trai ler as light as possible under the circumstances .
Whenever possible, transfer some cargo to the luggage compart-
Vehicle care Do-it-yourself service Technical data