air condition AUDI A3 2012 Owner´s Manual

16 Instrum ent s and w arn ing /indic ato r light s
immediately by your authorized Audi
dealer or a qualified workshop. Drive
slowly and avoid sudden, hard brake ap­ plication.
- Canada models: If both, the brake warn­
ing light . and the ABS warning light
Ii] come on at the same time, the rear
wheels could lock up first under hard braking. Lock-up of the rear wheel brakes
can cause loss of vehicle control and an
acc ident. Have your vehicle repaired im­
med iately by your authorized Audi dealer
or a qualified workshop. Drive slowly and avoid sudden, hard brake application
- If the brake warning/indicator light does not go out after a few seconds and the
park ing brake re leased, or lights up while
you are driving, the fluid level in the brake flu id reservo ir is too low. If you be­
lieve that it is safe to do so, proceed im­
med iately at low speed to the nearest
authorized Audi dealer or qualified work­
shop and have the bra ke system inspect­
ed.
- Always keep in m ind that afte r several
brake applicat ions, you will need g reater
pressure on the b rake peda l to stop your
vehicle. Do not re ly on strained brakes to
respond with maxim um stopping power
in critical situations . You must allow for
increased brak ing distances. The extra
distance used up by fad ing brakes could
lead to an acc ident.
~ / ! .!r Safety systems
The I (USA models)/ . (Canada mode ls) in­
d icator light monitors the safety systems e.g.
a irbags, pretensioners a nd illum inates for a
few seconds each time you switc h the ign ition
on.
If the
I (USA models)/ . (Canada models)
indicator light does not go out, or if it illumi­
nates w hile you are driv ing, or if it sta rts to
b lin k, then there is a ma lf u nction somewhere
in the system. If the light does not illuminate
when you switch on the ignition, this also
means there is a ma lfunction.
A WARNING
If you have a ma lfunction in the safety sys­
tems, contact your authorized Audi dea ler
i mmediately. Otherwise the safety sys­
tems may not work properly in an acc i­
dent.
~ Safety belt warning light
App lies to veh icles : w ith safe ty belt warni ng lig h t
The warning light is a reminder to fasten
safety belts .
The warning lig ht . comes on for a few sec­
onds after the ignition is sw itched on as a re ­
minder to fasten your safety belt .
Additional information on safety belts
r::> page 113.
D Generator '
This warning/indicator light detects a mal ­
function in the generator or in the vehicle 's
electrical system.
The . warning/indicator light i llum inates
when you switch on the ignition and must go
out after the eng ine has started.
If the . warning/indicator light illuminates
whi le you are driving, you sho uld contact your
authorized Aud i dea ler. Since the vehicle bat­
tery is discharging, you shou ld sw itch
off any
unnecessary electr ica l consumers (for exam ­
ple, the air conditioner) .
~ Engine oil pressure
The red engine oil pressure warning symbol
requires immediate service or repair .
If the . symbo l appears in the d isplay and
flashes, the o il pressure is too low . In add ition
to the symbol, the following message a lso ap­
pears in the display:
Switch off engine! Oil pre ssure is too low
.. Pull off the road and stop the vehicle.
.. Shut the engine down.
.. Check the engine oil leve l¢
page 200.

22 Instruments and warning /indicator lights
When this symbo l ml illuminates, it means
that Adaptive Light is defective. Go to a quali­
fied workshop to have the headlights or the
control unit for the Adaptive L ight repaired.
@, o Light/rain sensor defective
App lies to vehicles: with automat ic headlights
The indicator light indicates a defect in the
automatic headlights/automatic wiper sys ­
tem .
If the symbo l illuminates, the light sensor has
failed. For safety reasons , the low beams are
turned on permanently with the switch in
AU­
TO . However, you can continue to turn the
lights on and off using the light switch . In the
case of a defect in the rain sensor , the w ind­
sh ield wiper lever functions are st ill available .
H ave the light/ra in sensor checked as soon as
possible at an authorized Audi dealer.
; Audi magnetic ride
Appl ies to vehicles: with Audi magnetic ride
The indicator light monitors vehicle damping.
The indicator light E illuminates when the ig­
nition is switched on as a function check.
@ Tips
If the indicator lamp illuminates while you
are driving, there is a malfunct ion in the
veh icle damping. The chass is should be in­
spected immediately by an authorized Au­
di dealer.
~ Diesel particulate filter clogged
Applies to vehicles: with diesel engine and diesel particu­
late fi lter
1/1 Particulate filter ! See owner's manual
If the indicator light II in the instrument
cluster comes on, the diesel particulate filter has become blocked with soot as the result of
constant short-distance driving. When the
II symbol illuminates, you can alter your
driving style to assist the filter self-clean ing
p rocess. Drive for approximately 15 minutes
in 4th or 5th gear (automatic transmission with the se
lector lever in the S position) at a
minimum speed of 37 mph (60 km/h) and an
engine speed of approx imately 2,000 RPM .
The temperature increase that will result from
this can burn off the soot in the filter. The
symbol will switch off when the cleaning is
successful. After a successful cleaning, there
is no need to bring the car to an authorized
dealer or qualified workshop because this is
part of normal vehicle operation .
If the symbol
DI does not switch off, see
your autho rized dea ler or other qualified
workshop to have the problem corrected .
As long as the indicator light
11!1 remains on
(diesel part iculate filte r plugged), you ca n ex­
pect increased fuel consumption and possibly
also a loss of engine performance.
For more information on the diesel particu­
late filter, refer to~
page 171 .
A WARNING ,__
Always adapt your speed to the current
weather, road and traffic conditions. You
should never disobey traffic laws in order
to follow driving recommendations .
¢ ¢Turn signals
-
The indicator light blinks when you use either
turn signal.
Whenever you use the left B or the right fl
turn s ignal, the indicato r light blinks . When
you use the emergency f lasher, both indicator
lights flash.
If one of the turn signal light bulbs burn out,
the turn signal will blink twice as fast as nor­
mal.
Additional information on the turn s ignals
Q page SO.
CRUISE/ vf Cruise control
T he
(ijjll j~i~ (USA models)/. (Canada models)
warning/indicator light illuminates when the
cruise control is activated .

Warm and cold Climate controls
Description
The air conditioner is fully automatic and is
designed to maintain a comfortable and uni­
form climate inside the vehicle .
We recommend the following settings:
... Se lect and set a temperature between 64 °F
(+ 22 °C) and 84 °F (+28 °C).
... Press the
!AU TO ! button.
With this setting, you attain maximum com­
fort in the least amount of time. Change this
setting, as desired, to meet your personal
needs.
The climate controls are a combination of
heating, ventilation and cooling systems,
which automatically reduce humidity and cool the air inside your vehicle.
The air temperature, air flow and air distribu­
tion are automatica lly regulated to achieve
and maintain the desired passenger compart­
ment temperature as quickly as possib le.
The system automatically compensates for
changes in the outside temperature and for
the intensity of the sunlight entering the vehi­
cle. We recommend you use the
Automatic
mode c> page 81 for year-round comfort.
Please note the following:
Turn on the air conditioner to reduce humidity
in the vehicle. This also p revent the windows
from fogging up .
When the outside temperature is high and the
air is very hum id,
condensation from the
evaporator may drip under the vehicle . This is
normal and does not indicate a leak.
If the outside temperature is low, the fan nor­
mally only switches to a h igher speed once
the engine coolant has warmed up sufficient ­
ly.
Warm and cold 79
T he air conditioner temporari ly switches off
when you drive off from a standstill using full
throttle to save engine power.
T he compressor also switches off if the cool­
ant temperature is too high so that the engine
can be adequately cooled under extreme
l oads.
Air pollutants filter
T he air pollutants filter (a combined particle
filter and activated charcoa l filter) reduces or
eliminates outside air pollution (dust, or pol­
l en) from entering the vehicle .
T he air pollutants filter must be changed at
the interva ls specified in yo ur Warranty
&
Maintenance booklet, so that the air condi ­
tioner can properly work.
If you drive your vehicle in an area with high
air pollution, the filter may need to be
changed more frequently than specified in
your Audi Warranty
& Maintenance booklet. If
in doubt, ask your authorized Audi Service Ad­
visor for advice.
Energy management
To prevent the battery from being discharged
and to restore the ba lance of energy, compo­
nents which require large amounts of energy
are temporarily cut back or switched off c> page 167. Heating systems in particular re­
quire a great deal of energy. If you notice, for
example, that the rear window heater is not
heating, then it has been temporarily cut back
o r switched off by
energy management.
These systems are available again as soon as
the energy balance has been restored.
_& WARNING
.-----
Reduced visibility is dangerous and can
cause accidents .
- For safe driving it is very important that
all windows be free of ice, snow and con-
densation.
- Fully familiarize yourself with the proper
use and function of the heating and ven­
tilation system and especia lly how to de­
fog and defrost the windows.

80 Warm and cold
-Never use the windshield wiper/washer
system in freezing weather until you
have warmed the windshield first, using
the heating and ventilation system. The
washer solution may freeze on the wind­
shield and reduce visibility .
(D Note
-If you suspect that the air conditioner
has been damaged, switch off the air
conditioner and contact an authorized
Audi dealer to have the system inspect­
ed .
- Repairs to the Audi air conditioner re­
quire special technical knowledge and
special tools. Contact an authorized Audi
dealer for assistance.
@ Tips
-Keep the air intake slots (in front of the
windshield) free from ice, snow and de-
Controls
bris in order to maintain the proper func­
tion of the climate control system.
- Air escapes through vents under the rear
window. When placing items of clothing on the luggage compartment cover, en­
sure that the openings are not covered.
- If the inside temperature is very high
(for example, if the vehicle has been
parked in sun), open the windows and al­
low the hot air to escape before turning
on the air conditioner .
- A sensor in the grill provides the air-con­
ditioning system continuously with read­
ings of current outside temperature . So
that the air-conditioning can operate at maximum efficiency, the area below the
front license plate holder must not be
covered .
This overview will help you to familiarize yourself with the air conditioning controls.
Fig. 96 Air condi tion ing con tro ls
The display shows the temperature selected
and the blower setting.
You can set the temperature for the driver's
side using the left rotary switch @and the
temperature for the passenger's side with the
right switch @. Functions are
turned on and off by touching
the buttons. The diode in the buttons illumi­
nates when the function is active.
The grille between the buttons[:]/
G and
IAUTOI must remain unobstructed; there are
measurement sensors behind it.
- Do not seal off the grille.

-Do not clean the gri lle with a vacuum clean­
er, otherwise the sensors cou ld be damaged .
Function
!ACI Switching the cooling system on/off
q page 81
!AUTO I Automatic operation
qpage 81
[:] B Blower speed setting
( in the
q page 83
center)
l=I Manual recirculation mode
qpage82
~ Automat ic recircu lation mode
q page 82
~ Defrost
qpage82
@J Air directed to the windows
¢page83
[1;] Air from the outlets
qpage83
~ Air directed to the footwe ll
~page83
-= -·--~ Rear window defogger
¢page85
The buttons for sett ing the air flow d irection
~. ~and~ can also be pushed in combina­
tion .
~ Switching the air conditioner on/off
Applies to vehicles: with a utomat ic a ir conditioner
... Press the !AC I button to switch the air cond i­
tioner on or off .
When the a ir cond it ione r is sw itched on, t he
i ndicator light in the b utton is lit.
When the a ir cond it ioner is sw itched off, the
cooling system is switched off -th e heat ing
an d vent ilation system is reg ulated automati­
cally. Sw itch ing off the cooling system ( com ­
pressor) saves fuel.
Pl ease keep in mind that with the air cond i­
tioner switched off , the inter io r temperature
cannot be lower than the outside tempe ra­
ture. There is no coo ling and the air is not de -
Warm and cold 81
humid ified (danger o f the windows becom ing
fogged). Cooling mode switches off a utomati­
ca lly when the outs ide temperature is below
zero.
(D Tips
If there is a defect in the a ir conditioner,
the air conditioner cannot be switched on. In this case, the d iode in the button does
not light after being switched on. In the
event of a system fault, please contact an
A udi or specia list garage.
~ Automatic mode
The automatic mode is the standard setting
for all seasons .
Switching on AUTO
... Select tempe rat ure between 64 ° F (+ 18 °()
and 84 °F (+28 °C).
... Press
IAUTOI q page 80, fig. 96 .
AUTO on ly works when you set the inside tem ­
perature between 64 °f (18 °C) and 84 °f
(28 °C). If you select a temperature be low
64 °F (18 °(),
LO will appear in the display . If
you select a temperat ure above 84 °F (28 °C),
HI w ill appea r in t he d isp lay.
The system automatically compensates for changes in outside temperature and for the
i ntensity of the su nlight.
(D Tips
By keeping the IAUTOI button on the dr iv­
er's side pressed for several seconds, the
temperature of the passenger's s ide ca n
be set to the temperature o f th e d river's
side or vice v ersa. The new temperature
setting w ill be shown in the d isplay.

The air recirculation opera tes for a maximum
of 12 minutes. If the windows start to fog up
while the air rec irculat ion is on, press~
Unde r certain operating condi tions (fo r exam­
p le, if~ or
1-1 are pressed) the air recircu la ­
tion automatica lly switches off.
If the air con­
d itioner is sw itched off, or if the temperature
is below 18 °F (-8 °C), the air recircu lation wi ll
operate only for 12 seconds.
Switching between Fahrenheit and
Centigrade
You can change the temperature display from
°F (Fahrenheit) to °C (Centigrade) and vice
versa.
.,. Hold the l.,s,! button down c:> page 80,
fig.
96.
.,. Turn the rotary switch (d river 's s ide) @ for
3 seconds +.
G;J Air recirculation
The air recirculation prevents exhaust fumes
or oth er pollution from entering the vehicle .
Switching air recirculation on
.,. Press ~ c:> page 80, fig. 96 c:> A
Switching air recirculat ion off
.,. Press~ again, or
.,. press
IAUTOI, or
.,. press~-
I n the ai r recircula tion mode, the air in the
passenger compa rtment is recirculated to
p revent exhaust fumes and ot her pollution
from entering the vehicle. We recommend
that you use the manual air recircu lation un­
der the following conditions:
- when d riving through t unnels
- in a traffic jam.
,8. WARNING
Do not use this setting for extended pe ri­
ods of time . The windows could fog up
since no fresh a ir can ente r the vehicle . If
Warm and c old 83
the windows fog u p, press the ai r rec ircula­
tion button aga in immed iately to sw itch
off the air rec irculation function or select
defrost.
G IB Adjusting the fan speed
The automatically selected fan speed can be
increased or decreased.
.,. Press the[:] or El buttons in the center of
the control panel
c:> page 80, fig. 96 to ad ­
just the fan speed to your comfort.
T he air conditioning system automatically
r egulates the fa n speed i n respo nse to the in ­
terior tempe rat ure. However, you can a lso ad­
j ust the fan speed ma nually. A line of small
bars in the center display above the fan con­
trol buttons w ill re treat or extend to reflect
you r adjustments to the fan speed .
Air distribution
The automatically controlled air distribution
can be changed manually.
You can use the @J , [fil or~ buttons separate­
ly or together in combination. To switch back
to the automatic air d istr ibu tion sett ing, ei­
the r switch off the b uttons you prev iously se­
lected , or press
IAUTOI.
Each of the three buttons has its own spec ific
funct io n (t he reference numbers refer to the
a ir out lets)
c:> page 84, fig. 97.
~ Air directed to the windows
A ll the air is directed to outlets Contrary to when~ is pressed, the amount of
a ir remains the same .
~ Air directed to the driver /front
passenger
All the a ir is directed to outlets@,@ and ©
in the instrument panel. Air also is directed
th ro ugh the center console in the rear.
~ Air d irected to the footwells
A ll the air is directed to outlets ® and to the
outlets under the front seats.

84 Warm and cold
Air outlets
Fi g. 97 Instr ument pane l: a ir ou tlet locat io ns an d airflow d irec tions
The air out lets (D and @on top of the instru ­
ment panel are
fixed. Outlets @ and @can
be adjusted.
Adjusting a ir outl ets ® and @
.. Turn the vertica l thumbwhee l beside the
outlet to increase, reduce or s hut down the
airflow from that out let.
.. Move the small tab in the center of the out­
let louver sideways and up or down to ad just
the leve l and direction of airflow.
T he supply of air to the out lets is controlled
e ither automat ica lly or manually depending
on the operation mode se lected . The airflow
from all outlets can be heated, unheated or
cooled.
The heater out lets for the rear footwells are
located under the front seats . When you se­
lect outlets @, a ir is a lso directed to t he rear
footwells .
@ Tips
-When defrosting/defogging the win­
dows, air flows from outlets
(D , @ and
@ . To defrost or defog the windows as
r apidly as possib le, air outlets @ should
be ope ned
fully wi th the ad juster wheels.
- When the a ir condit ioner is working,
cooled air w ill flow pr imar ily from out­
l e ts @ ,@ and @. To assure adeq uate cooling, outlets
@ and @) should never
be completely closed.
Using the climate controls economically
Using the climate controls prudently can help
save fuel .
When you use the air conditioner, eng ine pow ­
er is reduced and fuel consumption increases .
T o save fuel, yo u should use the air condition­
er only when necessary . Also please note the
follow ing points:
.. If you wa nt to save fuel, switch off the ai r
conditioner .
.. If you are going to drive with the windows
open, switch off the air conditioner .
@ For the sake of the environment
By reducing the amount of fuel you use,
you also reduce the amount of po llutants
emitted into the air.
· Key coded settings
When the ignition is switched on, the air con­
di tioner settings are automatically assigned
to the key being used .
The air conditioner settings selected are auto­
matically stored and assigned to the key be ing
u sed . When the vehicle is started, the air ..,.

conditioner automatically se lects the settings
assigned to that key. This way every driver will maintain his/her own persona l settings and
does not have to reset them manually.
(D Tips
If a d ifferent driver uses your key and
changes the air conditioner settings, the
latest adjustments w ill erase and rep lace
the settings you have stored.
mP Rear window defogger
T he rear window defogger clears the rear win ­
dow of conden sation .
Fig. 98 Swi tch for rea r wi ndow defogger w ith a ir -con ·
d it io nin g
.. Press the QiP switc h to switch the rear win-
dow defogger on and off.
The defogger works on ly with the engine run ­
n ing. When the defogger is switched on, an
indicator light in the switc h comes on.
The rear w indow defogger switches
off au to­
matica lly afte r abo ut 20 m inutes.
@ For the sake of the environment
T ur n the defogger off when the rea r win­
dow is clear. When you save elec tricity, you
save fuel.
Additional heater
Applies to vehicles: with diesel engine
.. Switc h the Additional heate r to AUTO .
Vehicles w it h diese l eng ine s are equipped
with an add it ional heate r to warm the interior
of the vehicle mo re q uick ly. The additional
W arm and cold 85
heater switches itse lf on and off automatically
when the o utside temperature is below 50 °F
(10 °C) and the engine is running, depending
o n the coolant temperature , interior tempera ­
ture and the selected temperature.
Electrically heated
front seats
Applies to vehicles: with electrically heated front seats
With the ignition on , the seat cushion and
backrest of the front seats can be heated.
F ig . 99 Ce nter co nsole: t hu m bwhee ls for front seat
h eat ing
Use the t humbwheels in the center conso le
c;:> fig . 99 to turn on and adjust front seat
heating. An infin ite range of positions are pos ­
sible .
.. Ro ll t he thumbw heel
(D (dr iver's seat) or@
(front passenger's seat) from pos ition
( 0 )
upward in order to activa te the heati ng e le ­
ments .
.. Select the desired temperat ure setting from
positions 1 t hrough 6.
When the hea ting element is activated, the
numbers on the thumbwheel will illuminate .
& WARNING
Individuals wit h reduced sensitiv ity to pai n
or temperature cou ld deve lop burns when
using the seat heating funct ion. To reduce
the r isk of injury, these ind ividuals should
not use seat heating .

126 Airbag system
-Never place additiona l items on the seat
that can increase the total weight regis­
tered by the weight-sensing mat and can
cause injury in a crash.
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat
occupants.
F ig . 131 Location of driver airbag: in steer ing whee l
Fig. 132 Location of front passenger's airbag: in the in ­
strument panel
Your veh icle is equipped with an "Advanced
A irbag System" in compliance with United
States Federal Motor Vehicle Safety Standard ( FM VSS) 208 as app licab le at the time your
ve hicl e was manufac tured. The safe ty belts
for the front seats have "pretensioners" that
he lp to take slack out of the belt system. The
pretensioners are also activated by the elec­
tronic control unit for the airbag system.
The front safety be lts a lso have load limiters
to help reduce the forces applied to the body
i n a crash.
The airbag fo r the driver is in t he s teer ing
wheel hub¢
fig. 131 and the airbag for the front passenger is in the
instrument panel
¢
fig. 132 . The general location of the airbags
is marked "AIRBAG".
T here is a lot you need to know about the a ir­
bags in your vehicle. We urge you to read the
detailed information about airbags, safety
belts and child safety in this and the other
chapters that make up the owner's literature.
Please be sure to heed the WARNINGS - they
are extremely important for your safety and
the safety of you r passengers, especially in­
fants and small children.
_&. WARNING
Neve r rely on airbags a lone for p rotection.
- Even when they deploy, airbags provide
only supplemental protect ion.
- Ai rbag work most effectively when used
with properly worn safety belts.
- Therefore, always wear your safety belts
a nd make sure that eve rybody in your ve­
h icle is p roperly restrained.
_&. WARNING
=
A pe rson on the front passenger seat, es-
pe cial ly infants and sma ll children, w ill re­
ce ive ser io us in ju ries and can even be kil­
l ed by being too close to the airbag when
it inflates .
- Altho ugh the Advanced Airbag Sys tem in
your vehicle is designed to tur n off the
front passenger airbag if a n in fant or a
sma ll child is on the front passenger
seat, nobody can absolutely guarantee
that deployment under these special
conditions is imposs ible in all conceiva­
b le si tua tions that may happen during
the useful life of your v ehicle.
- The Advanced Airbag System can dep loy
i n acco rdance with the "low risk" option
unde r the U.S. Fede ral Standa rd if a child
t hat is heav ie r th an the typical o ne-year
old ch ild is on the front passenger seat
and the other conditions for ai rbag de ­
p loyment are met .

132 Airbag system
of their body too close to the area where
the airbags are located.
- Occupants who are unbelted, out of posi­
tion or too close to the airbag can be se­ riously injured by an airbag as it unfolds
with great force in the blink of an eye
r=> page 123 .
A WARNING
A child in a rearward-facing child safety
seat installed on the front passenger seat
will be seriously injured and can be killed if
the front airbag inflates -even with an Ad ­
vanced Airbag System.
- The inflating airbag will hit the child
safety seat or infant carrier with great
force and will smash the child safety seat
and child against the backrest, center armrest, door or roof.
- Always install rear-facing child safety
seats on the rear seat.
- If you must install a rearward facing
child safety seat on the front passenger
seat because of exceptional circumstan ·
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
mediately install the rear-facing child
safety seat in a rear seating position and
have the airbag system inspected by your
authorized Audi dealer .
A WARNING
Objects between you and the airbag will
increase the risk of injury in a crash by in­
terfering with the way the airbag unfolds
or by being pushed into you as the airbag
inflates.
- Never hold things in your hands or on
your lap when the vehicle is in use .
- Never transport items on or in the area
of the front passenger seat. Objects
could move into the area of the front air­
bags during braking or other sudden ma­
neuvers and become dangerous projec­
tiles that can cause serious personal in­
jury if the airbags inflate.
-
- Never place or attach accessories or oth­
er objects (such as cup holders, tele­
phone brackets, large, heavy or bulky ob­
jects) on the doors, over or near the area
marked "AIRBAG" on the steering wheel,
instrument panel, seat backrests or be­
tween those areas and yourself . These
objects could cause injury in a crash, es­
pecially when the airbags inflate.
- Never recline the front passenger's seat
to transport objects. Items can also
move into the area of the side airbag or
the front airbag during brak ing or in a
sudden maneuver. Objects near the air­
bags can become projectiles and cause
injury, particularly when the seat is re­
clined.
A WARNING
-T he fine dust created when airbags deploy
can cause breathing problems for people
with a history of asthma or other breath­
ing conditions.
= To reduce the risk of breathing problems ,
those with asthma or other respiratory
conditions should get fresh air right
away by getting out of the vehicle or
opening windows or doors.
- If you are in a collision in which airbags
deploy, wash your hands and face with
mild soap and water before eating.
- Be careful not to get the dust into your
eyes, or into any cuts or scratches.
- If the residue should get into your eyes ,
flush them with water.