2012 AUDI A3 light

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.

Instruments and warning/indicator lights 17
~ Cont act your a uth orized Audi dea ler fo r as -
s istance if necessary.
Engine oil level too low
If t h e e ngine o il level is too low, to p off o il to
the prope r leve l¢
p age 200.
Engine oil level OK
If the . symbol sta rts flas hing again even
though the engine oil level checks OK on the
d ipst ick ,
do not start driving again and do
not let the engine run at idle .
In stea d, con­
t a ct your author ized A udi de aler for assis­
tance.
@ Tips
- The engine oil pressure symbol. is
not an indicator for a low engine oil lev ­
el. Do not rely on it. Instead, check the
oil level in your engine at regular inter­
vals , preferably each time you refuel,
and always before going on a long trip.
- The yellow oil level warning indication
1/1 requires oil refill or workshop serv ­
ice without delay. Do not wait until the
red oil pressure warning symbol.
starts to flash before you respond to
the low oil level warning
Ill. By then,
your engine may already have suffered
serious damage.
- L Engine cooling system
A malfunction in th e engine cooling system
must b e re paired as so on as possibl e.
W hen th e . symbol in t he d isp lay flashes,
the n either the eng in e coolan t
temperature is
too h igh, or the coo lant
le vel is too low . In ad­
d ition to the symbol, the following message
al so a ppe ars i n the dis pla y:
Switch off engin e and check coolant level
~ Pull off the road and stop the vehicle.
~ Turn off t he e ngine.
~ Check coo lant level c> page 204.
~ Add coolant if necessa ry¢ page 204 .
~ Continue dr iving only after the eng ine cool­
an t war ning/ indica to r li ght goes o ut.
~ Contact yo ur autho rized A udi d eale r for as -
sistance if necessa ry .
If the engi ne coo lant level is correct, then t he
r adi ator fan may be the ca use of the mal func ­
tion .
If the ge nera tor war ning/ indica to r li ght
sho uld al so illum ina te
¢ page 16, then the
f an belt may be d amaged .
A WARNING
-If you r vehicle should brea k dow n for
mec hanical or other reaso ns, par k at a
safe distance fr om moving traffic, tu rn
off the eng ine and tu rn on the haza rd
warn ing lig hts ¢
page SO , Emergency
flash er.
-
- Never ope n the hood if you see or hear
steam or coo la nt escaping from the en­
g in e com part men t - yo u ris k bei ng scald ­
ed . W ait unt il yo u can no lo nger see o r
hea r stea m or cool ant escap ing.
- The engin e compa rtm en t of any vehicle
is a dange rous area. Befo re you perfor m
a ny w ork in t he engi ne c om pa rt men t,
t ur n off t he e ngine a nd allo w it to c ool.
F ollow t he warn ing s tickers
c> page 18 7,
Engine comportment.
([) Note
Do not con tinue dr iv in g if the . sym bol
ill umin ates . The re is a ma lfun ctio n in t he
engine coo ling system -yo u could dama ge
your engine .
~ Electro-mechanical power assist
If the indicato r light illum inates while yo u are
driv ing, the re is a malfunction in the electro­
mecha nica l steer ing. If t he indicator light is
showing
t~J, there may be a reduct io n in pow ­
er stee rin g assis t. If the indicato r light is
s h owing ., th ere may be a tota l loss of pow ­
er stee rin g assis t. T he s teer ing mu st be i n­
s p ecte d imme diately by a qualifie d wo rks hop
¢ .& .W ith the eng ine not ru nning (e. g. when
the car is bein g towe d), there is a lso no power
ass ist available . ..,.

18 Instrum ent s and w arn ing /indic ato r light s
A WARNING
-
If there is a malfunction, the indicator
light for the electro-mechan ical power as­
sist illum inates. Seek profess ional assis­
tance .
f;.!C; Electronic stabilization program
(ESP )
If the J$.] indicato r lamp blinks while dr iving,
the ESP or ASR (Anti-S lip Regulation) is active ­
ly regulating .
I f the
J$.] indicato r lamp ill uminates , the sys­
tem has switched the ESP
off. In this case, you
can switch the ignition
off and then on to
switch the ESP on again. The system is func­
tioning comp letely when the indicator lamp
switches
off.
If the I indicator lamp illuminates, the ESP
was switched
off with the I!] button.
St abili sation pr ogra m and ABS : fa u lt! Se e
o w ner's manu al
If the DJ indicator lamp and the [I] ABS indi­
cator lamp illumi nate and the dr iver message
appears, the ABS or e lectronic differential lock
is ma lfunctioning . This also interrupts the
ESP. The brakes sti ll function with their nor­
mal power, but ABS is not active.
Drive to yo ur authorized Aud i dealer immedi­
ate ly to have the mal function cor rected .
F or more informat ion about the ESP
¢ page 161.
ABS/ <0 Anti-lock brake system
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL).
The warning/indicator light m (USA mod­
e ls)
;ti] (Canada models) will come on for a
few seconds when the ignition is switched on .
The light will go out afte r an automat ic check
seq uen ce is completed.
Ther e is a malfunct ion in the ABS when:
- The warning/indicator l igh t does no t illum i­
nate when you switch the ignition on.
- The warning/indicator ligh t does not go out
after a few se conds .
- The warning/ indicato r light illum inates
while driving.
The ESP ind icator light also illum inates if
there is a ma lfunction in the ABS. The mes­
sage
St ab il isation program and AB S: fa ult!
Se e owner' s m anual
also appears in the in ­
strument cluster display and a wa rning tone
sounds.
Th e brak e sys tem will still respond even
withou t the a ssistanc e of the ABS system .
S ee y our autho rized Audi dealer as soon a s
po ssible to re stor e full braking perfo rmance.
For more information regard ing the ABS
¢ page 161.
Malfunct ion in the brake system
If t he brake war ning ligh t¢ page 15 and the
ABS wa rning illum inate
together there may be
a malfunction in the ABS , and there may also
be a malfunction in the brake system itself
c:> ,& . The ABS will not work and you w ill no ­
tice a change in brak ing re sponse and per ­
forman ce.
In the event of a malfunction in the brake
s y ste m
the warning/indicator light _
(USA models)/ . (Canada models) in the in­
strument cluster flashes¢
page 15 .
Malfunction in th e electronic diff erential
lock (EDL)
The EDL works together w it h the ABS. T he
ABS warning light will come on if there is a malfunction in the EDL system ¢
page 161.
See your author ized Audi dealer as soo n as
poss ible.
A WARNING
- If the m (USA models)/ &] (Canad a
models) wa rning light does not go ou t,
or if it comes on whi le driving, the ABS
-

Instrument s and warnin g/indic ator ligh ts 19
system is not working properly. The vehi­
cle can then be stopped only with the
standard brakes (without ABS). You will not have the protection ABS provides .
Contact your Audi dealer as soon as pos­
sible.
- USA models: If the - warning light,
the
G! warning light and the m warn­
ing light come on together, the rear
wheels co uld lock up first unde r hard
braking. Rear wheel lock-up can cause
loss of vehicle contro l and an accident.
Have your vehicle repaired immediately
by your autho rized Audi dea ler or a quali­
fied workshop. Drive slowly and avoid
sudden, hard brake applications.
- Canada models:
If the brake warn ing
light •• the
DJ warning light and the
ABS warning light
II] come on together,
the rear wheels could lock up first under
hard braking . Rear wheel lock-up can
cause loss of vehicle control and an acci­
dent. Have you r vehicle repaired immed i­
a tely by your authori zed A udi dealer or a
qualified workshop . Dr ive slowly and
avoid sudden, hard brake applicat ions.
{0) Worn brake pads
Ei] Che ck b rake pads!
If t h e war ning light illum inates, immediately
con tact your au thori zed A udi dealer o r quali­
fied workshop to have all brake pads inspect­
ed . On USA models the warning light
Ei]
comes on together with the warning light
- · Both sets of brake pads on an axle
must always be replaced at the same time.
A WARNING
Dr iv ing with bad brakes can cause a colli­
sion and serious personal injury .
- If the warning light
Ei] and the warning
light -
1l with the message Brake
pads!
comes on in the instrument cluster
display, immediately contact your au-
1 ) - : USA mod els only
thorized A udi dealer or qualified work­
shop to have all brake pads checked or
replaced if necessary.
(D Tire pressure monitoring system -
telltale indicator lamp
The warning/indicator light appears in the
event of a significant loss of air pressure.
The tl]warning/indicator light illuminates for
a few seconds after the ignition is turned on
as function check and then goes out .
If the
ti] symbol appears, pressure is too low
in at least one tire.
When the system detects a mal function, the
warning/indicator light will f las h for approxi­
mately one minute and then remain continu­
o us ly ill uminated. This sequence will continue
upon subsequent vehicle starts up as long as
the malfunction exists . Contact your author­
ized Audi dealer and have the ma lfunct ion
corrected .
For more information
q page 230.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
The ~ warning/indicator light (E lectronic
Power Contro l) illuminates when you switch
on the ignition as a function check.
(D Tips
If this warning/indicator light illuminates
while yo u are driving, then there is a mal­
funct ion in the engine e lectronics. Have
the malfunct ion corrected as soon as pos­
sible by your authorized Audi dealer or
qualified workshop .
~ Malfunction Indicator Lamp (MIL)
The Ma lfunction Indicator Lamp (MIL) is pa rt
of the On-Board Diagnostic (OBD II) system.
Ill>

20 Instruments and warning /indicator lights
The symbol lll lights up when the ignition is
turned on and will turn off after the engine
has started and has sett led at constant idle
speed. This indicates that the MIL is working
properly.
The warning light illuminates when there is a
malfunction in the engine e lectronic system .
Contact your authori zed Audi dealer and have
the malfunction corrected .
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
¢page 192.
F or more information ¢ page 24.
W Glow plug system I Engine
malfunction
Applies to vehicles: with diesel eng ine
The indicator lamp lights up to show that the
glow plugs ore preheating. It flashes if there is an engine malfunction.
Warning light II stays lit up
If the II indicator light illuminates, the g low
p lug system is active. You shou ld start the en ­
gine immediately after the indicator light
switches off. The indicator light on ly illumi­
nates for approximately 1 second if the en­
gine is warm or if the outside temperature is
above 46 QF (8 QC) .
There is a fau lt in the glow plug system if the
warning light
II does not light up when the
engine is
cold . Contact an author ized Audi
dealer or a qualified workshop .
II Warning light flashes
If a malfunction develops in the engine man­
agement system while you are driving, the
glow plug light will flash
II . The eng ine
should be checked by an authorized Audi deal­
er or a qualif ied workshop as soon as possible .
A WARNING
If you do not pay attention to the warning
lights that have come on, this could lead
to personal injury or damage to your vehi­
cle.
! 7} Engine speed limitation
Applies to vehicles: with engine speed limitat ion
Ill Do not exceed max. engine speed of XXXX
rpm
The Ill symbol illuminates when there is an
engine control malfunct ion. The ind icator
light~ in the instrument cluster also illumi­
nates. The engine speed is limited to the
speed displayed in the driver information sys­
tem. Keep in mind that the engine speed wi ll
not exceed the val ue displayed in the driver in­
formation system, for example when down­
shifting.
Please go to an authorized Audi dealer or oth­
er qualified workshop to have the malfunction
repaired.
~ .. Checking the engine oil level
When the II symbol illum inates, check the
engine oil level as soon as possible
¢ page 200 . Top off the oil at your earliest
opportunity ¢page 200.
II Please add max. 1 qt of engine oil!
If the II symbol comes on, add 1 quart (1 li­
ter) of oil at the next opportunity
¢ page 200.
• ~m Engine oil sensor defective
If the Ill symbol illuminates, contact your
authorized Aud i dealer and have the oil sensor
inspected .
0 Battery voltage low
(•i Low battery charge: battery will be
charged while driving
If the indicator light turns on and the mes­
sage appears, there may be limited starting
ability.
If this message turns off after a little while,
the battery charged enough while driving .

Instruments and warning/indicator lights 21
If the message does not turn off, have your
authorized Audi dealer or qualified workshop
correct the malfunction .
Bil Fuel supply too low
When the (I symbol illuminates, this means
there are about 2.6 gallons (10 liters) of fuel left in the fuel tank. Time to refuel!
Qpage 191.
If the symbol lights up, even when there is
ample fuel in the tank, and the text
Tank sys­
tem malfunction! Please contact workshop
appears in the display, there is a fault in the
system. Contact a qualified workshop to have
the fault rectified.
Q Windshield washer fluid level too low
If the I! symbol illuminates, add windshield
washer fluid to the washer system
Q page211.
~ Defective light bulb warning
The defective light bulb warning tells you
when a vehicle light bulb hos become defec­
tive .
If a defective bulb has been detected by the
system or a light bu lb burns out , the ~ sym­
bol with a message appears in the disp lay to
tell you which bu lb is burnt out and where it is
located. For example:
Rear left turn signal
After 5 seconds, the message disappears . If
you want to recall the message into the dis­
p lay, press the C H ECK button
Q page 10,
fig. 3(?) .
There are three reasons why the defective
bulb message wo uld app ear in the display:
- T he light bulb has burnt out
Q page 246 .
-The fuse is "blown" c> page 243, Replacing
fuses .
-The w ire connection to the light bulb is de­
fective. Have the
bulb replaced or the connection re­
paired by your authorized Audi Service depart­
ment .
_& WARNING
- Light bulbs are pressurized and could ex­
plode wh ile they are being changed caus­
ing serious pe rsonal injury .
- Work with due care when handling the
high-vo ltage sect ion of gas discharge
(xenon) lamps. Failing to do so could re­
sult in death or serious injury!
BRAKE LIGHT!<@> Brake light defective
In case of a malfunction or component fail-
ure, the symbol (USA models)/
tlJ (Canada models) can appear. The follow­
ing electrical components should be checked,
repaired or replaced , as necessary:
- Brake light bulbs
- All wir ing con nections
- Brake light switch
Contact your authori zed Audi dea ler for assis­
tance if necessary.
(D Tips
The brake light switch is only inspected as
part of the functional chec k after the en­
gine is started.
i,0 Headlight range control defective
Applies to vehicles : wi th dynamic headl ig h t ra nge adjus t­
m ent
If the II illumi nates, the dynamic headlight
range contro l is no longer working p roperly.
Have the system checked and repaired at your
authori zed Aud i dealer.
§'0
Adaptive light defective
App lies to vehicles: with Ada ptive Light
FJl Adaptive light defective

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 .

Driver information
display
Introduction
Introduction
The Driver information display inside the in­
strument cluster provides you, the driver,
with important information.
Fig. 6 Instr ument cluster: ce nte r dis play
Fig. 7 Wiper lever: controls fo r the menu d ispl ay
Center display
With the ignition on, the display in the Dr iver
Information System shows the fo llowing in­
formation:
- CD* inserted or Radio* station set
- Outs ide temperature*: At temperatures be-
low 41 °F (+5 °C), a snowflake symbol ap­
pears in front of the temperature display
¢_&. .
-Warning: front lid, door or eng ine compart­
ment lid open: The disp lay appears if the
door, the engine compartment lid or front
lid is not closed.
- Warning: close fue l tank cap: The Driver in­
formation disp lay indicates when the filler
cap is not secured or missing c>
page 192.
Driver information display 23
Additional functions
You can open the following functions in the
Driver Information System display by pressing
the
I RESETI button ¢ fig. 7 one or more times:
Trip computer Digital speedometer *
Menu display
¢page25
¢page27
The speed warning system is also displayed in
the Driver Information System. You can read
how to set it inc>
page 31.
Efficiency program
The efficiency program can help you to use
les s fuel
c> page 29.
Auto Check Control
Some f unctions and veh icle components are
scanned for their operating status when you
switch the ignition on and while you are driv ­
ing. Malfunctions or required service proce­
dures are s ignaled audibly and indicated by
red and yellow illuminated symbols and re­
minders in the display
¢page 13.
A WARNING
- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy or not . Keep in mind
that road surfaces, especially bridges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F (+S °C).
- Always remember, even if the "snow­
f lake" symbo l (ice warning) does not ap­
pear in the display, black ice could be on
the road.
- Always reduce your speed and drive with
special care in cold weather conditions
when the chance of encountering icy
road surfaces increases.
(D Tips
-If the vehicle is stationary, or if you are
driving at a very low speed, the tempera­
ture shown in the display might be
slightly h igher than the actual outside .,,.