brake light AUDI S3 2010 Owner's Manual

How the ABS system works
An aut omatic check is made whe n a speed of ab out 4 mph (6 km/h)
is reached. When this happens, a pumping noise can be heard.
I f an individua l wheel begins to rotate too slowly in relation to
ve hicle speed and ten ds to lock, the A BS automatical ly reduces
brake pressure to prevent that wheel from locking.
T his auto matic adjust ment p rocess wil l cause a
slight vibration o f
the brake peda l and some noises to alert you that veh ic le speed
must be ada pted to e xisting roa d and traff ic c onditions.
& WARNING
Although the ABS is very effective , always remember that braking
c apability is limited by tire tra ction . Always adjust your driving
speed according to the road and traffic conditions. Do not let the
extra safety afforded by the ABS tempt you into taking e xtra risks .
The ABS cannot overcome the laws of physics.
[ i ) Tips
• I f ABS is not functioning properly, a warning light wil l come on.
See
=> page 16.
• I f a fau lt occurs in the ABS, the E DL is als o not fu ncti onin g. This
is indicated by the ABS warning light. •
Brake assistant
The brake a ssi st ant is de sig ned to a chieve th e opti mum
b ra kin g eff ec t.
The brake assistant helps to increase the effective braking power
and thus to ac hieve a s horte r stop ping dis tance. If the drive r
presses the brake pedal very quick ly, the brake assistant automati ­
ca lly b oosts the braki ng force to the maximu m level, up to th e point
where the anti -loc k brake function (A BS) intervenes to stop the
whee ls from loc king. You should then keep the brake pedal pressed
Controls and equip­
ment Safety first Vehicle operation
Intelligent technology
until
the vehicle has braked to the required speed . The brake assis ­
t an t swi tc h es itse lf o ff as s oon as you r eleas e the b rake pe dal.
The brake assistant wi ll not be operative if there is a malfunction in
the ABS .
& WARNING
Please remember that the accident risk always increases if you
drive too fast , espe cially in corners or on a slippery road , or if you
follow the vehicle ahead of you too closely . An increased accident
risk cannot be compensated even by the brake assistant , so
always maintain a safe speed. •
ciectro-mechanical power assist
Th e e le ctr o-me ch anic al pow er assis t helps the driv e r
w hen steerin g.
The degree of powe r ass ist is electronically matched to veh icle
speed .
The power steering system assists the driver so that he can steer the
ve hicle with re d uced p hysi ca l eff ort.
Power steering w ill not work if the eng ine is off . As a result, the
stee ring whee l wi ll be ha rd to turn .
& WARNING
If the system develops a problem , you must seek qualified profe s­
sional assistance .
0 Note
If there is an electronic ma lfunction, servotronic will still function
like a conventi onal power s teer ing sy stem , pr ovi din g a constant
steerin g support force that is no longer proportionate to the vehicle
Vehicle care Do-it-yourself service Technical data

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Avoid damaging the vehicle
When you are driving on poor roads, or over curbs, steep ramps,
etc., make certain that low -lying parts such as spoilers and exhaust
system parts do not bottom out and get damaged.
This is especially true for vehicles with low -slung chassis (sports
chassis) and fu lly loaded vehicles.
Operate your vehicle economically
and minimize pollution
General
Your personal style of driving will determine the economy
o f your vehicle, as well as exhaust and noise levels.
Fuel economy, environmental impact, and wear on your engine,
brakes and tires largely depend on three factors:
• your personal driving style
• operating conditions
• technical limitat ions
If you anticipate what you need to do next and drive economically,
you can easily cu t your fue l consumption by 10 -15 percent . This
section will give you some tips on how you can help the environ­
ment and your pocketbook .
[ i ) Tips
The consumption estimates as published by ENVIRONMENTAL
PROTECT ION AGENCY (EPA) and Transport Canada may not corre­
spond to your actua l consumption on the road, which wi ll vary
depending upon vehic le load and speed, road and weather condi ­
tions, trip length, etc.
Drive smo~thly and keep a lookout ahead
Vehicles use the m ost fuel when they are accelerating.
Avoid unnecessary accelerating and braking.
Vehicles use the most fue l when they are accelerating . If you antici­
pate what is going 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 we ll below your car's maximum speed.
Acce lerating gently reduces fuel consumption, engine wear, and
does not disturb the environment .
Fuel consumption, exhaust em issions and engine noise increase
disproportionately at high speeds. If you drive at approximately
three quarters of top speed, fuel consumption wil l be reduced by
one half. Never drive faster than the posted speed limit and weather
conditions permit .•
Reducing unnecessary idling
E ven when your car is just idling i t burns up fuel.
- Sh ut the eng ine off when you are not driving the vehicle.
- Do not warm up th e vehicle by letting the eng ine r un at
idle.
I t m akes sense to shut off the engine in traffic jams, when waiting
for trains to pass at rai lroad crossings, or at traffic lights that have
9),

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Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor­
tation.
If you plan to tow a trailer, please remember that the additional load
wi ll affect durability, economy and performance.
Trai ler towing not on ly p laces more stress on the vehicle, it a lso ca lls
for more concentration from the driver.
For this reasons, always fo llow the operating and driving instruc ­
tions provided and use common sense. •
Technical requirements
Traile r hit ch
Use a weight -carrying hitch conforming to the gross trailer weight.
The hitch must be suitab le for your vehicle and tra iler and must be
mounted secure ly on the vehicle's chassis at a
technically sound
location . Use only a trailer hitch w ith removable ball mount. A lways
check with the trai ler hitch manufacturer to make sure that you are
using the correct hitch .
Do not use a bumper hit ch .
The hitch must be installed in such a way that it does not interfere
w ith the impact-absorbing bumper system . No modifications
should be made to the vehicle exhaust and brake systems. From
time to time, check that all hitch mount ing bolts remain securely
fastened.
When you are not towing a trailer, remove the trailer hitch ball
mount. This prevents the hitch from causing damage should your
vehic le be struck from behind
=:> & .
Tire pre ssure
When towing a trailer, inflate the tires of your vehic le to the cold tire
pressure listed under "Full load"on the sticker on the right door­
jamb. Inflate trai ler tires to trai ler and tire manufacturers' specifica ­
tions.
Lights
The head ligh t settings should be checked wit h the trai ler attached
before driving off. Have the head lights adjusted as necessary so
t hat you can see the road ahead but not blind oncoming traffic.
Check to make sure both vehicle and trailer lights are working prop ­
erly.
Engin e cool ing sy stem
Towing a t rai ler makes the engine wo rk ha rder . It is important that
the cooling system's performance stands up to the additiona l
strain. Make sure that the coo ling syste m has enoug h fluid.
Traile r br akes
If your traile r is equipped wi th a braking system, check to be sure
that it conforms to al l regu lations.
T he trailer hydraulic brake system must not be directly connected to
the vehic le's hydrau lic brake sys tem.
Safety chai ns
Be sure trailer safety chains are properly connected from the trailer
to the h itch on the vehicle. Leave enough slack 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 hitch. _.

Trailer lights
Trailer lights must meet all regulations. Be sure to check with your
authorized Audi dealer for correct wiring, switches and relays.
Mirrors
If you are unable to see the traffic behind you using the regular
outside mirrors, then you
must install 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 .
.1
Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical class 1 or class 2
trailer.
Trailer load distribution
Be sure the load in the trailer is held securely in place to guard
against shifting, be it forward, backward or sideways.
Never allow a passenger to ride in a trailer:::::, & in "Driving instruc­
tions".
Tire pressure
When towing a trailer, inflate the tires of your vehicle to the cold tire
pressure listed under "Full load" on the sticker on the right door­
jamb. Inflate trailer tires to trailer and tire manufacturers' specifica­
tions.
Controls and equip­ ment Safety first Vehicle operation
Trailer towing
Lights
The
headlight settings should 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 proper working of vehicle and trailer lights.
Safety chains
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough slack 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 hitch. •
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.
Vehicle care Do-it-yourself service Technical data

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Weig ht dis tributi on
Towing a loaded trailer with an empty car resu lts in a high ly
unstable distribution of weight . If this cannot be avoided drive at
very low speeds on ly to avoid the risk of losing steering control.
A "ba lanced" rig is easier to operate and control. This means that
the tow vehicle should be loaded to the extent possible and permis ­
sib le while keeping the trai ler as light as possib le under the circum ­
stances. Whenever possible, transfer some cargo to the luggage
compartment of the tow vehicle while observing tongue load requirements and vehicle loading considerations .
Speed
The higher the speed, the more difficult it becomes for the driver to
control the rig . Do not drive at the maximum permissible speed.
Reduce your speed even more under unfavorable load, weather or
wind conditions -particularly when going downhill.
Reduce vehicle speed
imm ed ia tely if the trailer shows the sl ightest
sign of swaying. Do not try to s top the s wayi ng by a ccelerating .
Observe speed limits . In some areas speeds for vehicles towing
trai lers are lower than for regular vehicles.
Always app ly brakes early. When driving downhill, shift into lower
gear to use the engine braking effect to slow down the vehicle. Use
of the brakes alone can cause them to overheat and fail.
C oo la nt tempe ra tu re
The coolant temperature gauge ~ page 9 must be observed care ­
ful ly. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or switch off the air condit ioner.
If the coolant temperature warning light in the instrument cluster
starts flashing -~-, pull off the road, stop and let the engine
idle for
about two minutes to prevent heat build -up .
& WARNING
An yone not p rope rly res train ed in a mo ving vehi cle is a t a mu ch
gre ater risk in a n accident. Neve r let an yone ride in your car who
is not p rop erly we ari ng th e res tra int s pro vide d b y Aud i.
c
Trailer towing tips
Important to know
Your vehicle handles different ly when towing a trailer because of
the additional weight and weight distribution . Safety, performance
and economy w ill great ly depend on how carefu lly you load your
trailer and operate your rig.
Before you actually tow you r trailer, practice turn ing, stopping and
backing up in an area away from traffic. Keep practicing unti l you
have complete ly become familiar with the way your vehicle -trailer
combination behaves and responds .
Backing up is difficult and requires practice. Backing up with a
trailer genera lly requires steering ac tion opposite of that when
backing up your vehicle without a trailer .
Maintain a greater distance between your vehicle and the one in
front of you. You will need more room to stop.
T o compensate for the trailer, you wi ll need a larger than normal
turning radius .
When passing, remember that you cannot accelerate as fast as you n ormal ly wou ld because of the added load . Make su re you have
enough room to pass. After passing, al low plenty of room for your
trailer before changing lanes again .
Avoid jerky starts, sharp turns o r rapid lane changes.

___ C_ le_ a _ n_i_n ~g _ a_ n_ d __ p_r _o _t _e _c_ t_ i_o _n ___________________________________________ _
Paint scratches should be touched up as soon as possible to prevent
corrosion =>
page 208, "Touch -up pain t" .
& WARNING
• Moi sture and i ce on brak es may affect b raking efficiency -
=> page 191 , "Gene ral inform ation ". Te st the brakes caref ully a fter
e ac h veh icle was h.
• Alway s read and heed all WARNING S and t he infor mation
=> page 204 . •
A pp lies to vehi cles : w ith Cast a lloy whee ls
Cast (light) alloy wheels
Cast (light) alloy wheels require special care.
- Wash the wheels with a spo nge or hose brush every
o ther week .
- For deep cleaning afte rwards, use only a dedicated
a cid ­
free
cast alloy whee l cleaner.
- Rub a coat of
liquid wa x onto the rims every t hree month .
Be sure to reach and treat all parts of the rim.
To preserve the decorative appearance of the cast alloy wheels,
some special care is necessary. In addition to road dirt and salt, brake dust is also corrosive . If left on for too long, brake dust can
cause pitting.
Use on ly specia l
acid-free cleaners formu lated for a lloy rims . Safe
products are available at your authorized Audi dealer. Never leave
the cleaner on the rims longer than specified on the label. If not rinsed off promptly, the acid contained in some cleaners can attack
t he threads on the wheel bolts. Never use abrasive or metal polishing cleaning agents
. If the protec ­
t ive coating has been chipped, e.g . by kicked up road dirt, touch it
up as soon as possib le.
& WARNING
• Moisture a nd ice on br akes m ay affect braking efficien cy
=> page 191, " Gen eral inf or mation ". Te st the brake s carefully each
ti m e you w ash th e vehi cle .
• Always read and heed all WARNINGS and other informa tion
=> page 204 . •
Body cavity sealing
T he body cavity se aling does not need to be checked.
All body cavities which could be affected by corrosion have been
thorough ly protected a t the factory .
This sealing does not require any inspection or additional treat ­
ment . If any wax should seep out of the cavi ty when the amb ient
temperature is high, it can be removed with a p lastic scraper and a
suitable solvent .
& WARNING
Solvents can be dangerou s.
• Ben zin e is flamm able and to xic. If you use b en zi ne for re moving
the wax, keep spark s, flame and lighted cigarette s away . Never
dump ben zine on the ground , into open st ream s or do wn sewage
dr ain s.
• Be sure to ob serve all safet y and env ironment al regul atio ns .
Follow all in stru ction s on the c ont ainer .
• Always read and heed all WARNINGS and ot her info rm ation
=> page 204 . •

Checking and filling -
---------------------=----"=---------
Radiator fan
The radiator fa n switches on au toma tically by i tself.
T he e lectric radiator fan is control led bythermoswitches that switch
on and off depending on coolan t and engine compar tm ent temper ­
atures .
An auxiliary e lectric radiator fan * switches on and off depending on
coolant temperature and other vehicle operation conditions.
After switching off the engine , the auxiliary fan -even with the igni ­
tio n off -ca n co ntinue runni ng for u p to 10 minutes. It can even
switch on again later by itself=>&, if
• the temperat ure of the engine coolant rises due to the heat
build -up from the engine in the engine compartment, or
• t he engine co mpart men t heats up because the vehicle is parked
in intense sunlight.
& WARNING
• To reduce the risk of personal injury never tou ch the r ad iator
fan .
• The auxiliary electric fan is temperature controlled and can
switch on suddenly even when the engine i s not running .
• The auxiliary radiator fan switches on automatically when the
engine cool ant reache s a certain temperature and will continue to
run until the coolant temperature drop s. •
Brake fluid
Checking brake fluid level
The bra ke flu id l evel can be che cke d wi th a q uick gla nce.
Fig . 17 0 Engine
co mpartment : brake
fluid re ser vo ir
Be fore yo u check anythin g in the e ng ine compar tm ent,
always read and heed all WARNINGS=> & in "Working in
t h e eng ine compartment" on
page 224.
Read t he brake fl uid lev el from t he brake flui d res ervoir .
T he b rak e fluid l eve l must b e between the
"MI N" and
"M AX" markings => fig. 170.
The brake f luid reservoir is located at the rear pa rtit ion of the engine
compartment on the left side=> page 225.
T he fluid leve l may drop slightly after some time due to the auto ­
ma tic adjustment o f the brake pads. Th is is not cause for alarm .
I f the brake flu id leve l falls considerably below the "MIN" mark, the
brake warning/indicator light (U.S . models :
BRAKE, Canadian models:
ID ) will come on=> page 15 and=> page 30. Do not continue to
operate the vehic le . The complete brake system should be thor ­
oughly checked by an au thorized Audi dealer or other qualified
facility and the cause corrected. If the brake fluid leve l is too low, the .,,_
Vehicle care I I irechnical data

___ C_h_ e_ c_k _in --== g'-- a_n _d_ f_il _li _n ..:::g:::..- ___________________________________________ _
brake warning/indicator light will illuminate . Contact an authorized
Audi dealer
i m medi at ely.•
Changing brake fluid
Have the brake fluid changed by an experienced techni­
cian.
Brake fluid absorbs moisture from the ai r. If the water content in the
brake fluid is too high, corrosion in the brake system may result
after a period of time. The boiling point of the brake fluid wil l also
decrease considerably and decrease braking performance .
Therefore, the brake fluid must be changed
e ver y two years. Always
use new brake fluid which conforms to Federa l Motor Vehicle Stan ­
dard "FMVSS 116 DOT 4" .
The brake fluid reservoir can be difficu lt to reach , therefore, we
recommend that you have the brake fluid changed by your autho­
rized
Audi d ealer. Your dealer has the correct tools, the right brake
fluid and the know-how to do this for you.
& WARNING
• Bra ke fluid i s poisonous . It mu st be stored on ly in the close d
ori ginal container out of the rea ch of children!
• Bra ke fa ilure can result from old or inappropri ate brake fluid .
Observe the se pre caution s:
- Use o nly brake fluid that meets SAE spe cifi ca tion
J 170 3 and
c onform s to Fed era l Moto r Vehic le Sta nda rd 116 . Always c heck
w ith your authori zed Audi de aler to m ake sure you are using
the correct brake fluid. The corr ect type of brake fluid i s als o
indi cated o n the br ake fl uid reser vo ir.
- The br ake flu id mu st be ne w. Hea vy use of the brake s can
c au se a vap or lo ck if the bra ke fluid i s left in the system too
long. Thi s can seriou sly affect the efficienc y of the brake s as
we ll as your safet y. Thi s co uld re su lt in an acci dent .
0 Note
Brake fluid wi ll damage the paint of your vehicle .
<£' For the sake of the environment
Because o f the problem of prope r disposal of brake flu id as we ll as
the special tools required and the necessary expertise, we recom ­
mend that you have the brake fluid changed by your authorized Audi
dea ler. •
Battery
General information
All w ork on the battery requires technical knowledge!
Fi g. 171 E ng ine
co mp artm ent (4 -
c yli nder engin e):
Bat tery w it h cove r"
The battery is located in the engine compartment~ fig. 171 and is
nearly
mai nten ance-fr ee .
The condition of the ba ttery is checked in the framework o f the
inspection. We recommend replacing batteries that are o lder than 5
years. .,

What do I do now? -__________________ __;__:....:....:..:: __ _
•
-All passengers should leave the car and move to a safe
location (for instance, behind the guardrail)~& .
- Apply the
parking brake firmly ~& .
- Move
selector lever to position Pon an automatic trans-
miss ion; put manual transmission in
first gear ~& .
-If you are towing a trailer : unhitch the trailer from your
vehicle.
- Take the
tool and the spare tire~ page 268 out of the
luggage compartment.
& 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 flasher 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 roadway 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 trans­
mission in "P" (Park), or engaging a gear in a manual transmission
will
not prevent the vehicle from moving.
• Before you change a wheel, be sure the ground is level and firm.
If necessary, use a sturdy board under the jack.
• After installing the spare wheel, make sure that you remount
the flat tire/wheel in its storage area properly and tighten the
knurled retaining screw securely. •
Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and exactly in that order.
1. Remove the decorative wheel cover*. For more details
see also
~ page 272, "Decorative wheel covers" or
~ page 273, "Wheels with cap-covered wheel bolts".
2. Loosen the
wheel bolts~ page 274.
3. Locate the proper mounting point for the jack and align
the jack below that point~
page 274.
4. Lift the car with the jack~ page 274.
5. Take the flat wheel off and then put the spare on
~ page 276.
6. Tighten all wheel bolts lightly .
7.
Lower the vehicle with the jack .
8. Use the wheel bolt wrench and
firmly tighten all wheel
bolts ~
page 274.
9. Put the decorative wheel cover* back on.
& WARNING
Always read and head all WARNINGS and information ::} & in
"Raising the vehicle" on
page 274 and ~ page 277. •
After changing a wheel
A wheel change is not complete without the following
actions.
- Store and secure the replaced wheel in the spare wheel
well. .,._
Do-it-yourself service

1111.___F_ u_ s _ e_s _ a_n _ d_ b_ u_lb _ s _______________________________________________ _
Equipment Amps No. Equipment Amps
Manual headlight beam adjustment, automatic
14 Electronic Stabilization Program (ESP) (control 10
1
headlight beam adjustment, AFS control mod-10
module), shift gate automatic transmission
ule, engine components, light switch (switch
15 Interior lights, reading lights 10
lighting/illumination), diagnosis socket
Diagnostic connector, rain sensor, air condition-
Automatic transmission, control module for
16 ing (control module), tire pressure monitor dis-10
CAN data transfer (gateway), electro -mechanical
play (control module)
2 steering, shift gate automatic transmission, 10 17 Anti-theft alarm warning system 5 engine relay, fuel tank control unit, engine con -
trol unit, brakes control (ABS), Electronic Stabili-
18 Diagnose Starter 5
zation Program (ESP), Anti -Slip Regulation (ASR) 19 All Wheel Drive 10
3
Airbag 5 20 Not used
!! Air-conditioning (pressure sensor, air quality
sensor), button for Electronic Stabilization Pro -
21 Not used
gram (ESP), Anti-Slip Regulat ion (ASR), tire pres-
22 Blower fan 40
sure monitor display, oil level sensor, back -up 23 Driver's side power window, front 30
4 light switch, front seat heating , parking aid, 5
seat-occupancy recognition (on USA vehicles), 24 Power outlet front 20
garage door opener, automatic mirror dimming, 25 Rear window defogger 30
headlight assistant, heated windshield washer
26 Power outlet in luggage compartment 20 nozzles, air conditioning (control module)
-27 Fuel tank control module, fuel pump 15
5 AFS headlights (left side) 5
AFS headlights (right side) 5 28 Power window, rear 30
7
Not used 29 Not used
Not used
30 Not used
9 Navigation system, radio system 15 31 Not used
10 digital
radio, cell phone, TV equipment 7,5 32 Not used
11 Automa tic mirror dimming, headlight assistan t 10 33 Sliding/pop-up roof 20
Central locking (front doors) 10 34 Not used
13 Central locking (rear doors) 10 35 Not used
36 Lumbar support 10