2012 AUDI A3 warning light

2. Loosen the w hee l bol ts ¢ page 238.
3. Locate the proper mounting point for the
jack and align the jack below that point
¢ page 239.
4. Lift the car with the jack¢ page 239.
5. Take the flat wheel off and then put the
spare on
¢ page 240 .
6. Tighten all wheel bo lts light ly .
7 .
Low er the veh icle w ith the jack.
8 . Use the wheel bolt wrench and
firml y
tighten all whee l bolts ¢ page 238.
9. Put the decorative wh eel cov er* back on.
A WARNING -
Always read and head all WARNINGS and
information
¢ A in Raising the vehicle on
page 240
and ¢ page 241.
After changing a wheel
A wheel change is not complete without the
following actions .
.. Store and secu re the replaced wheel in the
spare wheel we ll.
.. Put the tool case and the jack back in place
in the luggage compartment .
.. Check the
tir e pres su re on the spare wheel
immediately after mounting it .
.. As soon as possible, have the
tightening
torqu es
on all wheel bolts checked with a
torque wrench. The correct tightening tor­
que is 90 ft lb (120 Nm).
.. Have the flat tire
repl aced as soon as possi ­
ble.
@ Tips
- If yo u n otice wh ile chang ing a tire tha t
the wheel bo lts a re cor roded and diffi ­
cult to turn, then they should be re­ placed before you check the tightening
torque.
- Drive at reduced speed until you have the
tightening torques checked .
What do I do now ? 237
Full wheel covers
App lies to vehicles : with ful l wheel cove rs
T he wheel covers must be removed to access
the wheel bolts.
Remo val
.. Pull the full whe el cover off manua lly.
Installation
.. First press the full w hee l cover on to the rim
a t the cut-o ut prov ided for the va lve . Then
engage the outer edge of the
full wheel cov ­
er
in the steel rim.
Decorative wheel covers
App lies to vehicles: with decorat ive w hee l covers
The decorative wheel covers must be removed
first to access the wheel bolts .
Fig. 181 Whee l cha nge : removing the whee l cover
Remo ving
.. Insert the hook provided with the on board
tool kit into the hole on the center hub
piece.
.. Pull off the
decorati ve wh eel cover
¢ fig . 181 .

240 What do I do now?
& WARNING
-You or your passengers could be injured
while changing a wheel if you do not fol ­
low safety precautions:
- Mounting the jack under the vehicle at
any other place than indicated above
may damage the vehicle or may result
in personal injuries .
- A soft or unstable surface under the
jack may cause the vehicle to slip off
the jack. Always provide a firm base for
the jack on the ground . If necessary,
use a sturdy board under the jack.
- On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent
the jack from slipping .
- To help prevent injury to yourself and
your passengers:
- Do not raise the vehicle until you a re
sure the jack is securely engaged.
- Passengers must not remain in the ve­
hicle when it is jacked up.
- Make sure that passengers wait in a
safe place away from the vehicle and
well away from the roadway and traffic.
- Make sure jack position is correct , ad­
just as necessary and then continue to
raise the jack.
Taking the wheel off/putting the spare
on
Follow these instructions step-by-step for
changing the wheel
Fig. 187 Wheel c han ge: using the sc rewdrive r handle
(w ith the blade removed) to turn the bolts
... ,._
"' i
"'
Fig. 188 W hee l change : alignmen t pin inside the top
hol e
M ,._
"' d. 00
"'
After you have loosened all wheel bolts and
jacked the vehicle off the ground, perform the
following steps to remove and replace the
wheel:
Removing the wheel
.,. Use the hexagonal socket in the screwdriv·
er handle
to completely turn out the top­
most wheel bolt and set it aside on a
clean
surface c;, fig. 187 .
.,. Screw the threaded end of the alignment
pin from the tool kit hand-tight into the
now vacant bolt hole <=>
fig. 188 .
.,. Then completely unscrew the other wheel
bolts as described above.
.,. Take off the wheel leaving the alignment
pin in the bolt hole
c;, &,.
Putting on the spare
.,. Lift the spare wheel up and carefully slide it
over the alignment pin to guide it in place .
.,. Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel
bolts
slightly .
.,. Unscrew the alignment pin and insert and
tighten the remaining wheel bolt slightly
like the rest.
.,. Turn the handle on the jack counter-clock­
wise to lower the vehicle until the jack is
fully released .
.,. Use the wheel bolt wrench to tighten all
wheel bolts firmly
r:::;, page 238 . Tighten
them
crosswise , from one bolt to the (ap­
proximately) opposite one, to keep the
wheel centered.

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 .

A WARNING ,~
There are parts with sharp edges on the
openings and on the bulb holders that can
cause serious cuts .
- If you are uncertain about what to do,
have the work performed by an author ­
ized Audi dealer or other qual ified work­
shop. Serious persona l injury may result
from improperly performed wor k.
(D Tips
- If you must replace the light bulbs your ­
self, always remember that the engine
compartment of any vehicle is a hazard­
ous area to work in. Always read and heed all WARNINGS
q page 187, Engine
comportment q
.&.
-It is best to ask your authori zed A udi
dealer whenever you need to change a
bulb.
Fu ses and bulb s 247
• -
•

248 Emergency situations
Emergency situations
General
This chapter is intended for trained emer­
gency crews and working per sonnel who
have the necessary tools and equ ipment to
perform these ope rations.
Starting by pushing or
towing
Q;) Note
Vehicle s with an automati c transmission
cannot be started by pushing or towing .
Starting with jumper
cables
Jumper cable: Note the manufacturer's infor­
mation.
If th e battery is d ischa rged, another vehicle
can provide starting assistance. For this you
req uire a j umper cab le . Both batteries m ust
have the same voltage (V) and a s imilar ca­
pac ity (Ah).
Jumper cables
Use only jumper cab les of sufficiently
large cross section to safely carry the sta rter
cur rent. Refer to the manufacturer 's specifica ­
ti ons.
Use on ly jumper cables with
isola ted termina l
clamps an d properly marke d for distinction :
plus(+) cable in most cases colo red red
minu s(-) cable
in most cases colo red black .
The wire cross section must be at least
0.038 in
2 (25 mm2 ) for gasoline eng ines and
at least 0.054 in
2 (35 mm2
) for diese l en­
gines .
A WARNING
Batte ries co ntain e lec tricity, ac id, a nd gas .
Any of these can cause ve ry ser io us or fatal i
njury . Follow the instructions below for
safe handling o f your vehicle's battery.
- Always shie ld your eyes and avo id lean-
ing over the battery wheneve r poss ib le.
- A discharged battery can a lready freeze
at temperatures just be low 32 °F (0 °() .
N ever attempt to provide start ing ass is­
tance on a frozen or thawed out batte ry -
Da nger of explosion and chemical burns!
Replace a battery if it has bee n froze n.
- Do not allow battery acid to contact eyes
or skin . Fl ush a ny con tacted a rea with
wa te r immediat ely .
- Imp rope r use of a booster battery to
start a vehicle may cause an ex plosion .
- Vehicle batter ies ge nerate explosive gas­
e s . K eep spar ks, flame and lighted c iga ­
r e ttes away from ba tteries.
- Do not try to ju mp start a ny ve hicle w it h
a low ac id leve l in the battery .
- The vo ltage of the bo oste r batte ry m ust
a lso have a 12-Vo lt rat ing. T he capacity
(A h) of the booste r battery sho uld not b e
lowe r than that of the discharged bat­
tery . U se o f batte rie s of d iffe ren t voltage
or subs tan tia lly diffe ren t "Ah" rat ing
may c ause an exp losion and person al in­
jury .
- N ever ch arge a fr oze n b atte ry. Gas t rap­
ped in the i ce may c ause an ex plosion .
- N ever ch arge or use a batt ery th at h as
been frozen . T he battery case may have
be weake ned.
- Us e of batt erie s of diff ere nt vol tage or
subs tanti ally diff eren t ca pac ity (Ah) rat ­
in g may cause an exp losion and injury.
The ca pac ity ( Ah) of the booster battery
should not be lower than that of the dis­
charged batte ry.
- Before you check anythin g in the engine
compa rtment, always read and heed a ll
WAR NIN GS¢
page 187, Engine com­
partment.

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,

264 Index .:..:..:..::....::..
...:..._ ___________________________ _
A
ABS
refer to Anti-lock brake system . ... .. . 164
Accessories .. ... .. ..... ... .. .. .. .. . 26 1
Acoust ic park assist ........ .. .. .... .. 93
AC (a ir cond itioner) ......... .. .. .. .. .. 81
Adapter for anti-theft wheel bolts . .. .. . 238
Adaptive light
defective . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Adding Engine coolant .......... .... ..... . 204
Engine oil . ...... ....... ... .. .... . 200
Windshield washer fluid ............ 211
Addit ional accessories .......... .... . 261
Additional heater Climate controls . . . . . . . . . . . . . . . . . . . . 85
Additives Engine oil . ............... ... .. .. . 200
Adj ustab le steering wheel column .... .. 88
Adjusting Steer ing wheel column ........ .. .... 88
Adjusting front seats ........ ... .... .. 61
Advanced Airbag System
Components ... .......... .. .. .. .. . 129
Fr ont airbags ................ .... . 127
How the components work together .. 130
Monitoring ................. ..... . 133
PASS ENG ER A IR BAG OFF light .. .... . 133
A irbag
Warning/indicator lights ............. 16
A irbag system . . . . . . . . . . . . . . . . . 122, 139
Advanced Airbag System . . . . . . . . . . . . 126
Care . .. .. ............... .. .. .... . 135
Ch ildren . .... ........... .. .. .. .. . 144
Ch ild r estra ints ........... .. .. .. .. . 145
Components (front airbags) . ... .... . 129
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 123
Disposal . ................. .. .... . 135
Front airbags . ........... .. .. .... . 126
How do the front airbags work? . . . . . . 131
H ow many airbags does my vehicle
have? ..... .......... ...... ... .. . 129
I mportant things to know .... .. .... . 122
I ndicator light ........... .. .. .. .. . 133
Monitoring ................. ..... . 133 Repairs ...
.... .. ............. .... 135
Side airbags ..... ................ . 137
S ide curtain airbags ................ 140
When must the system be inspected? 133
Airbag System
Weight-sensing mat .............. . 144
Air conditioner .. .. ................ .. 81
also refer to Climate controls .. .. .. .. . 79
Air conditioning Switching on and off ........... .. .. . 81
Air distribution Climate controls . ................. .. 83
Air outlets Adjusting the outlets for rapid defrost -
ing/defogging ... ................ .. 84
Climate controls . .............. ..... 84
Air quality sensor . . . . . . . . . . . . . . . . . . . . 82
Air recirculation . .. ... .......... .... . 83
Climate controls .. ............. .... . 82
When should I use the air recirculation? 82
Air recirculation mode Climate controls . ................. .. 82
All-wheel drive Winter tires ... .. ... .......... .... 227
Alloy wheels ...... ................ . 182
All Wheel Drive .... ............. .... 166
Alternator
refer to Generator ............. .. .. . 16
Aluminum alloy wheels .... ...... .... 182
Ambient lighting . . . . . . . . . . . . . . . . . . . . 52
Anti-lock brake system How the ABS system works ........ .. 164
Warning/ind icator lights ........ .. .. . 18
Anti -theft systems
Anti-Theft Alarm System . . . . . . . . . . . . . 42
Anti-theft wheel bolts ........... .... 238
Armrest Center armrest . . . . . . . . . . . . . . . . . . . . . 66
Rear armrest .... ................ .. 67
Asterisk What does it mean when something is
marked with an aster isk? ........ .... .. 6
Audi magnetic ride . . . . . . . . . . . . . . . 22, 9S
Description . . . . . . . . . . . . . . . . . . . . . . . . 95
Indicator light ... ....... ...... .. .. . 22
Audi Service Repair Manuals and Litera-
ture 259