2012 AUDI A3 brake

236 What do I do now?
-After installing the compact spare wheel,
the tire inflation pressure should be
checked and, if necessary, increased to
60 psi (4.2 bar).
- The load carrying capacity is marked on
the tire sidewalls and must not be ex ­
ceeded.
- After installing the compact spare wheel,
make sure that you remount the flat tire
in its storage area properly.
- The compact spare tire should be proper­
ly remounted in its storage area as soon
as the standard road tire can be re­ placed .
- Because the compact spare tire was spe­
cifically designed for your vehicle, it must not be used on any other vehicle .
Likewise, compact spare wheels from
other vehicles must not be used on your
vehicle.
- The compact spare tire must not be
mounted on any other wheels, nor must
standard tires, snow tires, wheel covers
or trim rings be used with the compact
spare wheel. If such use is attempted,
damage to these items or other vehicle
components may occur .
(D Tips
Check the inflation pressure of the com­
pact spare tire (60 psi/4.2 bar) periodically
to keep the tire ready for use.
Wheel change
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang­
ing 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 c:> ,&. .
.. All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)
c:> _&. .
.. Apply the parking brake firmly c:> _&. .
.. Move selector lever to position Pon an au­
tomatic transmission ; put manual transmis­
sion in
first gear c:> _&..
.. If you are towing a trailer : unhitch the trail­
e r from your vehicle.
.. Take the
tool and the spare tire c:> page 234
out of the luggage compartment .
.&, WARNING
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
- If you have a flat tire, move a safe dis­
tance off the road. Turn off the engine,
turn the emergency flasher on and use
other warning devices to alert other mo­
torists.
- 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, plac ­
ing the automatic transmission 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 these­
quence described below step-by-step and ex­
actly in that order .
1. Remove the decorative wheel cover*. For
more details see also
c:> page 23 7, Deco­
rative wheel covers
or c:> page 238,
Wheels with cap-covered wheel bolts.

A WARNING ,~ -
When removing or install ing the wheel,
the rim could hit the brake rotor and dam­
age the rotor. Work ca refully and have a
second p erson help yo u.
@ Tips
Never try and use the hexagonal socket in
the hand le of the screwdrive r to loosen or
tighten the whee l bolts .
- Pull the reversib le blade from the screw­
drive r bef ore yo u use the hexagonal
socket in the handle to t urn t he whee l
bo lts.
- When mounting tires with
unidirectional
tread design
make su re the tread pat­
te rn is pointed the rig ht way
¢ page 241.
-The wheel bolts should be clea n and easy
to tu rn. Che ck for dirt and corro sio n on
t he mat ing surf aces of both the whee l
and the h ub. Remove a ll dirt from these
su rfaces before remo unt ing the wheel.
Tires with unidirectional tread design
Tires with unidire ctional tread de sign must be
mounted with their tread pattern pointed in
the right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When using a spare tire wit h a tread pa tte rn
intended for use in a specific direction , pl ease
note the following:
- The direc tion o f rota tion is marked by an a r­
r ow on the side o f the tire.
- If the spare tire has to be i nst alled in the in ­
correct di rection in the even t of a flat tire,
use the spare tire on ly tempo rari ly since the
tire will not be ab le to ac hieve its opt imum
per formance characterist ics w ith regard to
aquapla ning, no ise and wear.
- We recommend that particular attent ion be
paid to this fact dur ing wet weather and
t h at you adjust your speed to matc h road
co ndit io ns.
What do I do now? 241
- Replace the flat ti re with a new one and
have it installed on your vehicle as soon as
possible to restore the hand ling advantages
of a properly pointed direction-dependent
tire .
Notes on wheel change
Please read the informat ion ¢ page 223, New
tires and r eplacing tires and wheels
if yo u a re
go ing to use a spa re tire w hich is different
from the ti res on yo ur vehicle.
After you change a tire :
-Check the tire pressu re on the spare imme­
diately after mounting.
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as
possible by your authorized Audi dealer or
a qualifi ed service station.
- On steel and alloy wheel rims, the wheel
bolts are cor rectly tightened with a torque
of 90 ft lb (120 Nm).
- If you notice while changing a tire that the
wheel bolts are corroded and difficult to
turn, then they should be replaced befor e
you check the tightening torque .
- Replace the flat tire with a new one and
have it installed on your veh icle as soon as
possible. Remount the wheel cover.
Until then, dr ive with e xtra care and at re­
duced speeds .
A WARNING
-If you are go ing to e quip your vehicle
wit h tires o r rims whi ch differ from those
whi ch were fac tory inst alled, then be
sure to re ad the inform ation ¢
page 223,
New tires and replacing tires and
wheels.
- Always ma ke sure the damage d wheel o r
even a fla t tire an d the jack and tool ki t
are prope rly secu red in the luggage com­
partment and are not loose in the pas­
senger compartment .
- In an accident or sudden maneuver they
could fly forwa rd, injuring anyone in the
veh icle.
•
•

244 Fuses and bulbs
Fuse Location, Instrument Panel left
Fuses which can be replaced.
Fig. 191 Cockp it driver 's s ide: fuse pane l layout
Note that the following table is accurate at
the time of going to pr ess and i s subject to
change . In the event of d iscrepancies, the la­
bel on the in side of the cover always take s
pr eceden ce .
The power seats are protected by circuit
break ers,
which automatically reset after a
few seconds after the ove rload has been rem­
ed ied .
Equipment
Manua l head light beam ad­
justment, a utomat ic head­
light beam adjustment, AFS
1 co ntrol m odule, engine
components, light switch
(switch lighting/illumina­
ti on), diagnosis socke t
2
3
4
5
6
8
9
Automatic transmission,
control module for CAN data
transfer (gateway), electro­
mechanical steering, shift
gate automatic transmis­
sion, fuel tank control unit,
engine control unit, brakes
control (A BS), Electronic
Stabili zation Program (ESP) ,
Anti-Slip Regulation (ASR)
Air bag
Air-conditioning (pressure
sensor, air quality sensor), button for Electronic Stabili ­
zation Program (ESP), Anti ­
Slip Regulat ion
(ASR), tire
pressure monitor display, oil
level senso r, back-up ligh t
s w itch, front se at he ati ng ,
p ark ing aid, sea t-occupancy
recognition (on USA vehi ­
cles), garage door opener,
automa tic mirror dimming,
headlight assistant, heated
windshield washer nozzles, air conditioning (control
module)
AFS headlights ( left si de)
AFS headlights (right side) Instr ument cluster
Navigation system, radio
system
1 0 digital
radio, cell phone, TV
equipment
11 Automatic mirror dimming,
headlight assistant
12 Central lock ing (front doors)
Central locking ( rear doors)
Amps
10
10
5
5
5
5
5
15
7 ,5
10
10
10

No. Equ ipment
Electronic Stabilization Pro-
14
gram (ESP) (control mod-
u le), shift gate automatic
transmission
15 Interior lights, reading
lights
Diagnostic connector, rain
sensor, air conditioning
16 (control module), t
ire pres-
sure monitor d isplay (con-
trol module)
I 17
Anti-theft alarm warning
system
18 D iagnose Starter
19 All Wheel D rive
20 Audi magnetic ride
Blower fan
23
Driver's
side power window,
front
24 Power outlet front
2S Rear window defogger
26 Power outlet in luggage
compartment
27 Fuel tank control module,
fuel pump
28 Power window, rear
33 Slidi ng/pop-up roof
36 Lumbar support
37 Heated sea ts, front
1 38
Passenger side power win-
dow, front
39 Specia l func tion interface
40 Starter
41 Rear window wiper
43 Body control module
47
Ce ll phone package (V OA in-
terface)
Automatic circuit breakers:
10
10
10
5
5
10
40
30
20
30
20
15
30
20 10
20
30
5
40
15
20 5
The electri c power w in dows and the e lectr ic
seat adjusters are pro tected with circu it
breake rs which reset automatically after the
circuit overload has been corrected.
Fu se s and bulb s 245
@ Tips
-Whenever rep lacing a fuse, always con­
sult the sticker on the inside of the f use
pane l cover. It contains the most up-to­
date information regarding the fuse ar­
rangement. If in doubt, ask your author­
ized Aud i Service adviso r.
- Some of the equipment items listed are
opt ional or only available on certa in
mode l configurations.
Fuse location, left side of engine
compartment
Fig . 192 En gine compar tment : fuse assig nment
,._
-d. a, a>
Check the fuse layout with the f use panel cov­
er removed
¢ page 243, Fuse cover in engine
comportment.
Some of the equipmen t items listed are op­
tiona l or only ava ilab le on certain model con ­
figurations.
Please note tha t the preced ing tab le was ac­
c u rate at the time of pr int ing and is subject to
c h ange.
No. Equipment
F2 Engine compone nts
F3 Battery voltage ESP valves, Anti-lock brake
F4 system (ABS) valves
Transmission control mod­
F5 ule
F6 Steering wheel e lectronics
Amps
20
5
20
15
s

246 Fuses and bulbs
I
I
I
No. Equipment
FlO Engine control module,
main relay
Control module for CAN da­
F12 ta transfer (gateway)
F13 Engine control module (die­
sel engine/gasoline engine)
Fl 4 Engine components (diesel
engine), ignition coils
FlS
F16
F17
F18 Preheating control module/
engine component, tank di­
agnosis, oxygen sensor
Body control module (right)
Horn
Audio amplifier
Flg Front windshield wiper sys­
tem
F 2 0
Water pump/volume regula­
tor valve
F22
F23
F24
F25
F26 Oxygen sensor (diesel en­
gine/gasoline engine)/vac­
uum pump
C
lutch pedal switch, brake
light switch
Engine relay, water pump/
engine components/volume regulator valve
Eng ine components, water
pump
Pump (ESP/ABS), ABS valve
Body control module (left)
-Amps
5/10
5
15,20,
25/30
20
5/10 30 15
--30
30
10/15, 20
10/15 /20
5
5/10
/15
10
40
-·-- --·-
30
40
F27 Secondary
air pump, pre-
heating control module
__ , ..
F29 Fuse assignment in the left­
side instrument pane l (spe-
cia l equipment)
Power supply relay terminal
15 so
so
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace burned
out bulbs for you.
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in
many cases, other parts of the car must first
be removed before you are able to get to the
bulb. This applies especially to the light bulbs
in the front of your ca r which you can only
reach through the engine compartment.
Sheet metal and bulb holders can have sharp
edges that can cause serious cuts, and parts
must be cor rectly taken apart and then prop­
erly put back together to help prevent break­
age of parts and long term damage from wa ­
ter that can enter housings that have not been
properly re sea led.
For your safety, we recommend that you have
your authorized Audi dea ler replace any bulbs
for you, since your dealer has the proper tools,
the correct bulbs and the expertise.
Gas discharge lamp s (Xenon lights)*:
Due to the high e lectr ica l voltage, have the
bulbs replaced by a qualified techn ic ian.
Head lights with Xenon light can be identified
by the high voltage sticker.
_& WARNING ~
Contact with high-vo ltage components of
the electrical system and improper re­
placement of gas discharge (Xenon) head­
light bulbs can cause serious personal in­
jury and death.
- Xenon bulbs are pressur ized and can ex­
plode when being changed.
- Changing Xenon lamps requires the spe­
cial tra ining, instructions and equip­
ment.
- On ly an authorized Audi dealer or other
qualified workshop should change the bulbs in gas discharge lamps .

CD Note
-Applying a higher vo ltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
control units, relays , radio, etc.
- There must be no e lectrica l contact be­
tween the vehicles as otherwise current
could already start to flow as soon as the
pos itive(+) terminals are connected.
- Improper ly connected jumper cables can
cause substantial damage to the electri­
ca l system of the vehicle .
(D Tips
-The discharged battery must be properly
connected to the vehicle's electrical sys­
tem.
General information of
starting assistance
Please observe that the procedure described
be low for connecting jumper cables is inte nd­
ed to p rov ide a jump star t for you r veh icle.
M ake sure t hat the co nnected clamps have
sufficient
metal co ntac t. S tart assist ance d if­
fe rs fo r vehicles wi th a 4-cyli nder eng ine:
¢ page 249, Use of jumper cables
_& WARNING
Improper handling of t he ju mper cab les
can lead to an explosion of the battery and
severe injuries. To reduce the r isk of injury,
note the following:
- The sections of the terminal clamps that
are not insu lated must not touch each
other. In addition, the cab le clamped to
the battery's positive term inal must not
come in contact with e lectrically con­
nec ted parts of the veh icle -dang er of
sho rt cir cuit!
- Route t he jumper cab le so that it cannot
catch in any rotating parts in the engine
compartment .
- Do not bend over the batte ries -danger
of chemi cal bu rns!
Emergenc y situ ation s 249
-The battery cell locking screws must be
tightened secure ly.
- Keep ignition sources (open f lame, b urn­
ing cigarettes, etc.) away from t he bat­
ter ies - danger of explosion!
- Do not clamp the minus cable to parts of
the fuel system or the brake lines.
CD Note
If yo u prov ide start assis tance for others
with your vehicle, you sho uld not clamp
the minus cab le (- ) to the negative termi­
nal of the discha rged battery¢
page 249,
fig. 193 @but
to a solid meta l part
screwed firmly to the engine block, or to
the engine block itse lf. In case of an inade­
q uately v entilat ed battery of the vehicle
r eceiving powe r, the re is a danger of explo­
s io n due to deton ating gas!
Use of jumper cables
Make sure to connect the jumper cable
clamps in exactly the order described below!
Fi g. 193 Ju mp -start ing wit h the battery of a nother ve­
hi cle: A -disc ha rged veh icle battery, B -booster battery
T he bat tery is lo cated in the fron t, i n t he en­
gine compar tment on the dr iver's s ide. To
reach the positive term inal, remove the cover
~ page 208.
Preparatory measures
1. Do not jump sta rt a fro zen battery! ¢..&,
in S tarting wi th jumper cables on
page 248, ¢.&. in General info rmation of
starting assistance on page
249. Rep lace
s u c h a battery! ..,.

250 Emergency sit uat ions
2. Otherwise apply the hand brake and shift
into idle gear if your vehicle has manua l
transmission, and put the selector lever
into P position if your vehicle has auto­
matic transmission.
3 . For both vehicles switch off all consumers
and the ig nition .
Connectin g/disco nn ecting th e jumper
cable
4 . Connect one end of the red jumper cable
to the positive term inal
(D ¢ fig . 193 of
the discharged battery @ ¢0
in General
information of starting assistance on
page 249 .
5. Connect the other end of the red jumper
cab le to the positive termina l@ of the
booster battery @.
6 . Connect one end of the black jumper ca­
b le, preferably at the ground point. Other­
wise, connect it to the negative terminal
@ of the booster battery @.
7 . Connect the other end of the black jumper
cab le to the
ground po int (bolt head )©
in your v ehi cle @ .
8. Route the jumper cables so that they can­
not catch in any rotating parts in the en­
gine compartment.
Starting the engine
9 . Start the engine of the vehicle provid ing
assistance and allow it to run at idle .
10. Now start the eng ine o f the vehicle w ith
the discharged battery, wa it for two to
three minutes unti l the engine "runs"
smoothly .
11. If the engine does not start: Stop trying
after
10 seconds and then try again after
about
30 seconds.
12 . In the veh icle that has received start as­
sistance, turn on the heater blower and
the rea r window heat ing to eliminate any
voltage peaks when disconnecting. Driv­
ing lights must be swi tched off!
13. Disconnect the cable whi le the engine is
running exact ly in
reverse order to that
described in¢
page 250, Connecting/dis­
connecting the jumper cable.
When do ing so, make sure that the cable cannot con­
tact rotating engine parts.
14. Turn the heater b lower and the rear w in-
dow heating off again .
The battery is vented to the outside to prevent gases from entering the vehicle interior .
Make sure that the jumper clamps are we ll
connected with thei r
metal ports in full con­
tact
with the battery terminals .
A WARNING
To avoid serious personal injury and dam­
age to the vehicle, heed all warnings and
instructions of the jumper cable manufac­
turer. If in doubt, call for road service.
- Jumper cables must be long enough so
that the veh icles do not touch.
- When connecting jumper cables, make sure that they cannot get caught in any
mov ing parts in the engine compart­
ment.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢page 187, Engine com­
partment.
{CT) Note
Improperly connected jumper cab les can
damage or destroy the generator .
- Do not use the battery negative terminal
for jump start ing or a malfunct ion could
occur in the vehicle electrical system.
- Always connect POSITIVE(+) to POSI-
TIVE(+), and NEGATIVE(-) to NEGATIVE
( - ) term inal.
- Check that all screw p lugs on the battery
cells are screwed in firm ly . If not, tighten
plugs prior to connecting clamp on nega­
tive batte ry term inal.
- Please note that the procedure for con­
necting a jumper cable as described
above applies specifically to t he case of
your vehicle being jump st arted. When
yo u are g iving a jump sta rt to another ve­
hicle, do
not connect the minus( -) cable
to the minus (-) terminal on the dis­
charged battery@¢fig.193 . Instead,

-If you must work underneath the vehicle
with the whee ls on the ground, always
make sure the vehicle is on level ground,
that the wheels are always secu rely
blocked and tha t the eng ine cannot be
started.
- Always make sure the transm ission se­
lector lever (automatic transmiss ion) is
in "P" (Pa rk position) (a utomat ic trans­
mission) or Neutral (manual transmis­
sion) and the hand brake is fi rm ly ap­
plied.
@, For the sake of the environment
- Changing the eng ine settings w ill ad­
versely affect em ission levels. This is det­
rimental to the environment and increas­
es fue l cons umption.
- Always obse rve env ironmental regula­
tions when d ispos ing of old engine oil,
used b rake fluid, dirty engine coolant,
spent batteries or worn out tires .
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo­
rate Mate rial -special handling may ap­
ply, see www.dtsc.ca.gov/hazardous­
waste/perchlorate. When the veh icle or
parts of the restraint system includ ing
airbag modules safety belts with preten­
s ioners are scrapped, all appl icable laws
and regulations must be observed. Your
autho rized Audi dea le r i s familiar w ith
these req uirements and we recommend
that yo u have your dea le r perform this
service for you.
Additional accessories, modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories .
Your vehicle incorporates the latest safety de­
sign features ensuring a high standard of ac­
tive and passive safety .
Consumer In formation 26 1
This safety could be compromised by non-ap ­
proved changes to the vehicle . For this reason,
if parts have to be replaced, please observe
the following points when installing add ition­
al accessories:
Approved Audi accessories and genuine Audi parts are available from authorized Audi deal­
ers.
T hese dea lers a lso have the necessary facili­
ties, tools and trained specialists to install the parts and accessories properly .
_& WARNING
Using the wrong spare parts non-approved
accessories can cause damage to the vehi­
cle and serious personal injury.
- Use on ly accessories expressly approved
by Audi and genu ine Audi spare parts
- These parts and accessories have been
specially designed to be used on your ve­
hicle.
- Never install accessor ies such as tele­
phone cradles or beverage ho lders on air­
bag covers or within the airbag deploy­
ment zones. Do ing so will increase the
ris k of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNINGS
<:!)page 187.
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used o r if repair wo rk is not
performed accord ing to specified meth­
ods, this can resu lt in severe damage to
your vehicle's engine and body (such as
corrosion) and adve rsely affect yo ur vehi­
cle 's warranty.
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized Audi dealership as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipulations.
•
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