sensor AUDI A8 2012 Owners Manual

Instrument s and warnin g/indic ator ligh ts 13
I
USA mod els: Safety systems
[j
Tank system
¢ page 18 ¢page 21
'
m
Canada models: Safety systems
•
Windshield washer fluid level
¢page 18 ¢page
21
I]
Electronic Stability Control (ESC)
!I
Windshield wipe rs
,I ¢ page 21
¢ page 18
- -
I!
Remote control key
Electronic Stability Control (ESC)
I
¢page BO
,I
¢page 18
~
Remote control key
USA models: ¢ page BO
rJ}E
Anti-lock brak ing system (ABS)
m
Battery in remote control key
defective ¢page29
¢ page 19
I Canada model s:
l:I
Defective light bu lb warn ing
•
Anti-lock braking system (ABS) ¢page 21
defective
Fog lights*
I ¢page 19
II ¢page 21
Worn brake pads
•
- -
¢page 19
•
Rear fog lights*
¢page 21
•
Electromechanical parking brake
¢page82
II
Headlight range control
¢page 21
•
Tire pressure mon itoring system
,I
mJ
adaptive light*
¢ page253 ¢page
21
1111&1
Tire pressure monitoring system
Light-/rain sensor faulty
m
¢page253
¢page 21
[m
Electronic power contro l - -
¢page20
•
Audi lane assist
¢page 96
g
Malfunction indicator Lamp (MIL)
,I
ti
Transmission
¢page20 ¢page
112
•
Engine speed limitation
Ii]
Transmission
¢ page 20
¢page 112
Ill
Engine oil level
Im
Electronic steering column lock
¢page 17
¢page 17
•
Engine oil sensor
Im
Engine start system
¢ page20
¢page 17
r.
Battery
,100
Dynamic steering *,/
¢ page 16
¢page22
--

18 Instruments and warning/indicator lights
If the indicator light turns on and the mes­
sage appears, there is a ma lfunction in the en ­
g ine start system.
Drive to your authorized Aud i dealer immedi­
ate ly to have the malfunction cor rected .
0 Air suspension
• Air suspension: system fault. Can contin­
ue slowly with max. 35 mph .
There is a malfunction that can result in re­
stricted driving stability .
Ca refully drive at a maximum speed of 35
mph
(60 km/h) to your authorized Audi dealer
or qualified workshop to have the malfunction
corrected .
• Air suspension: service mode. Vehicle
can only be moved with restrictions
Carefully drive to your authorized Audi dealer
or qualified workshop immediately to have
the service mode deactivated.
Ill Air suspension fault
There is a system ma lfunction that can result
in restr icted driving stability or reduced
ground clearance.
Drive to your authorized Audi dea ler immedi­
ate ly to have the malfunction corrected.
IIJ Air suspension: vehicle too low. Ground
clearance reduced
The ground clea rance is ve ry low due to a sys­
tem malfunct ion. Wait until the air suspen­
sion system has restored normal ground clear­
ance . Otherwise, conditions such as an uneven
road surface can lead to ve hicle damage.
~/ !f Safety systems
The fl (USA models) ;BI (Canada models) in­
d icator light monitors the safety systems e.g.
a ir bags, pretensioners and illum inates for a
few seconds each time you switch the ignition
on .
If the
I (USA models) ;BI (Canada models)
indicator light does not go out, or if it illumi- nates while you are driving, or if it starts to
blink,
then there is a malfunction somewhere
in the system.
If the light does not illuminate
when you switch the ign it ion on, th is also
means there is a malfunct ion.
A WARNING '"--
If you have a ma lfunction in the safety sys-
tems, contact your authorized Audi dea ler
imme diately. Otherwise the safety sys­
tems may not work properly in an acci­
dent.
fJJ [}, Electronic Stability Control (ESC)
This warning/indicator light monitors the
Electronic Stability Control.
When you switch the ignition on, the indicator
light
G1 turns on briefly to check the function.
If the
J.iJ ind icator lamp blinks wh ile driving,
the ESC or ASR (Anti-Slip Regulation) is active­
ly regulating.
If
the DJ ind icator lamp illuminates, the sys·
tern has switched the ESC off.
If the indicator light fi turns on, the ESC was
switched to ESC sport mode with the button
[!] c::, page 187. If this is case, you can reacti­
vate the ESC by switching the ignition off and
then on aga in. The warning/indicator light
should go out to show that the system is fully
functional again .
Stability program and ABS fault! See own­
er 's manual
If the indicator light DJ and the ABS indicator
li ght
m (USA models) ;II] (Canada models)
turn on and the message appears, there is a malfunction in the ABS system or electronic
differential lock. Th is also interrupts the ESC.
The brakes still funct ion wit h their normal
power, but ABS is not active .
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
If the battery terminals were disconnected
and re-connected, the vehicle was jump start-
ed or the battery is very weak, the ESC sensor .,,.

20 Instruments and warning /indicator lights
If the warning light illuminates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­
ed. On USA models the warning light
El
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
Driv ing with bad brakes can cause a colli­
sion and serious personal injury.
-If the warning light El and the warn ing
light
- 1) with the message Brake
pads!
comes in in the inst rument cluste r
display, immediately contact your au­
thorized Audi dealer or qualified work­
shop to have all brake pads checked or
replaced if necessary.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
The~ warning/indicator light (Electronic
Power Control) illuminates when you switch
the ignition on as a function check.
@ Tips
If this warning/indi cator light ill uminates
while you are driving, then there is a mal­
function in the engine electronics. Have
the malfunction corrected as soon as pos­
sible by your authorized Aud i dea ler or
qualified repair facility.
o Malfunction Indicator Lamp (MIL)
The Malfunction Ind icator Lamp (MIL) is part
of the On-Board D iagnostic (OBD II) system .
The symbol
¢4ii lights up when the ignition is
switched on and w ill turn off after the engine
has started and has sett led at a constant idle
speed. This ind icates that the MIL is working
properly.
l ) - : USA mod els only
-
The warning light illuminates when there is a
malfunction in the engine electronic system.
Contact your authorized Audi dea ler and have
the malfunction corrected.
An improperly closed fuel filler cap may also
cause the MIL light to illuminate
¢page 217.
For more information ~ page 26.
!?'i Engine speed limitation
Applies to vehicles: with engine speed limitatio n
Ill Engine speed maximum XXXX RPM
The eng ine speed is automatically limited to
the speed displayed in the driver information
system . This protects the engine from over ­
heating.
T he eng ine speed limitation deactivates once
the engine is no longer in the critical tempera­
ture range and you have re leased the accelera­
tor pedal once.
If the engine speed limitation was activated
by an engine control malfunction, the indica­
tor light~ also turns on. Make sure that the
speed does not go above the speed displayed .
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
~ .. Engine oil level
II Add oil, max. x qt (l). You may continue
driving
When the symbol II and driver message ap­
pear, add the amount of oil appearing in the
display at the next opportunity¢
page 225.
~,.. Engine oil sensor
II Oil level! Sensor defective
If the symbol illuminates, contact your au­
thorized Audi dealer and have the oil sensor inspected . U ntil you have this done, check the
o il level each time you refuel just to be on the
safe side ~
page 224.

Instruments and warning/indicator lights 21
Bu Fuel level indicator
II Please refuel
If the indicator light turns on for the first
time and the message appears, there are
about 4 ga llons (15 liters) of fuel left in the
tank . T im e to refuel
<=>page 216.
II Tank system malfunction! Contact dealer
If the indicator light turns on and th is mes­
sage appears, there is a malfunction in the
tank system.
Drive to your authorized Audi dea ler immedi­
ately to have the malfunction corrected .
co Windshield washer fluid level
II Please refill washer fluid
If the symbol illuminates, add windshield
washer fluid to the washer system/headlight
washer system* <=>
page 234.
4I:> Windshield wipers
!I Windshield wiper defective
There is a malfunction with the windshield
wipers.
Drive to your authorized Aud i dealer immedi­
ately to have the mal function cor rected .
~!}0 10$ Defective light bulb warning
I-If the indicator light turns on, a bulb has
fa iled. The message indicates the location of
the bulb.
II-if a fog lamp* has failed, the ind icator
light t urns on to indicate the location on the
vehicle.
[ti-if a rea r fog lamp has failed, the ind icator
light turns on to indicate the location on the
vehicle .
Vehicle lights: malfunction
If the message appears, there is a malfunc­
tion in the headlights or light switch. Drive to
your authorized A udi dealer immedi­
ate ly to have the ma lfunction corrected.
A WARNING
- Light bulbs are pressurized and could ex­
plode w hile they are being changed ca us­
ing serious personal injury.
- Work with due care when hand ling the
high-voltage sect ion of gas discharge
(xenon) lights. Failure to do so could re­
sult in death or serious injury.
(1) Tips
Have the bu lb replaced or the connection
repaired by your authorized Audi Service
department.
i.lD Headlight range control
II Headlight range control: defective!
If the symbol illuminates, the headlight range
control is no longer work ing properly. Have
the system checked and repaired at your Audi
dealer .
~0 Adaptive Light
Applies to veh icles: w it h Adaptive light
ml Audi adaptive light: system fault
If the indicator light turns on and this mes­
sage appears, there is a malfunct ion in the
adaptive light system. The headlights st ill
function.
Go to an authorized dealersh ip to have the
headlights or the control unit for the Adaptive
Light repa ired .
@ Light/rain sensor
!I Automatic headlights/automati c wipers:
system fault
If the indicato r light turns on and this mes­
sage appears, the light/rain sensor is not
funct io nin g correctly.
For safety reasons the low beams are turned
on permanently with the switch in
AUTO . liJI,

22 Instruments and warning /indicator lights
However, you can continue to turn the lights
on and
off using the light switch . You can still
control a ll funct ions that are independent of
the rain sensor through the windshield wiper lever.
Contact your authorized Audi dealer as soon
as possible to have the prob lem corrected.
@! Dynamic steering
1;r.ij Steering: system fault. you can continue
driving
If the indicator light turns on and the mes­
sage appears, the steering may be more diffi­
cult to move or more sensitive than usual. The
steering wheel may also be at an angle when
driving straight .
Drive slow ly to your authorized Audi dealer or
qualified workshop to have the malfunction
corrected.
tT@ Dynamic steering: initialising
If th is driver message appears and the ind ica­
tor light is flashing on the instrument panel,
dynamic steering is being reinitialized. Once
you start the engine after this is finished, the steering wheel w ill be easy to move . Re-initi ­
alization might be necessary if the steering
wheel was moved hard to the left and r ight
while the veh icle was not moving . The display
goes out as soon as init ialization is complete .
A WARNING
-
Have the dynamic steering system mal­
function repaired as soon as possible by an
authorized Audi dealer or any qualified
workshop -risk of accident!
@ Tips
-The dynamic steering stability systems
are not available in the event of a system
malfunction.
- For additional informat ion on dynamic
stee ring, refer to
¢page 103.
I-: Sport differential
II Sport differential: system fault
There is a malfunction with the sport d ifferen ­
t ial.
Drive to your authori zed Audi dealer immedi­
ately to have the malfunction corrected .
II Sport differential: overheating
The transmission temperature has increased
s ignificantly due to the sporty driving manner.
Drive in a less sporty manner until the tem­
perature returns to the normal range and the
indicator light switches of.
A WARNING
Contact your authorized Audi dealer or a
qualified workshop if the sport differential
is faulty or malfunct ioning . The repair
must be performed by trained personnel
using the correct oil in order to ensure
safety.
¢ 9 Turn signals
-
The indicator light blinks when you use either
turn signal .
Whenever you use the left B or the right B
turn signal, the indicator light blinks. When
you use the emergency flashers , both indica­
tor lights flash .
If one of the turn signal light bulbs burn out,
the turn signal will blink twice as fast as nor­ mal. Carefu lly dr ive to your authorized Audi
dealer immed iately to have the malfunction
corrected. The indicator light does not indi­
cate a malfunction if a turn signal on the trail­
er or on the vehicle fails in trailer towing
mode.
@ Tips
For more information on the turn signals,
refer to
¢ page 45.

when you lock the vehicle from the out­side the windows cannot be opened from
the inside .
- When you leave the vehicle, always take
the ignition key with you. This will pre­
ven t passengers (children, for example)
from accidentally being locked in the ve ­
hicle should they accidentally press the
power locking switch in the doors.
- Do not leave children inside the vehicle
unsupervised . In an emergency it would
be impossible to open the doors from
the outside without the key.
- Applies to vehicles with power side door
closer*:
- When closing a door, make sure noth­
ing can interfere with the door. This
could cause serious personal injury.
- You can stop the door from closing at
any time by pulling on the inside or
outside door handle .
(D Tips
-In the event of a crash with airbag de­
ployment all locked doors will be auto­
matically unlocked to give access to the
vehicle occupants from the outside .
- If the power locking system should mal­
function, you can lock the driver's door
using the mechanical key
r::;, page 34.
- If the power locking system should fail,
you can still open the fuel tank flap in an
emergency
r::;, page 218 .
-You are well advised not to keep valua­
bles inside an unattended vehicle, visible
or not . Even a properly locked vehicle
cannot provide the security of a safe .
- If the LED in the upper edge of the driv­
er's door panel comes on for about 30
seconds after the vehicle is locked, there
is a malfunction in the power locking or
the anti-theft warning system. Have the
malfunction corrected by an authorized
Audi dealership or qualified repair facili­
ty.
Opening and closing 31
Setting power locking
T he driver can determine the functions for
power locking in the MMI .
.,. Select: !CAR !function button> Car systems
control bu tton > Vehicle settings > Central
locking .
Unlock doors -
You can decide if All doors or
only the
Driver should unlock. The rear lid al­
so unlocks when
All is selected. If you select
Driver in a vehicle with a convenience key* ,
only the door whose handle you pull will un­
lock.
If you select
Driver , all the doors and rear lid
will unlock if you press the
ffi button on the re­
mote control master key twice .
Lock exterior trunk handle -If you select On,
the rear lid handle is locked. In this case the
rear lid can be opened with the button
a on
the master key or with the
a button* in the
driver's door . In vehicles with a convenience
key* , you can still open the rear lid using the
handle if an authorized master key is near the
proximity sensor.
Fold mirrors* -If you select On, the exterior
rearview mirrors fold in automatically when
you press the
(TI button on the remote control
master key or touch the sensor* in the handle.
Lock when driving -If you select On, the vehi­
cle locks automatically when driving. All of
the doors and rear lid lock.
Tone when locking -When you select On, a
confirmation tone sounds when you lock the
vehicle.

32 Opening and clo sing
locking and unlocking the vehicle with
the remote control
F ig. 16 Remote control: function buttons
Either the driver's door only or the e ntire veh i­
cle will unlock when the unlock button
III is
p ressed once, depending on the settings in
the MMI
¢page 31.
.. Press button III to unlock the veh icle
¢ fig .16 .
.. Press b utton fij to lock the vehicle ¢ .&. in
General description on page 30 .
.. Press b utton c:s briefly to unloc k the rear
li d .
.. Push the red
!PANIC I button to activate the
panic function. The horn sounds and the
turn signals flash. Push the red
!PANIC I but­
ton aga in to deact ivate the panic function.
If t he vehicle is unlocked and no door, the rear
lid or the hood is opened w ith in 60 seconds,
the vehicle locks itself again automatically.
This feature prevents the vehicle from being
accidenta lly left unlocked over a long period
of time .
It depends on the settings in the MMI wheth­
er the entire veh icle is unlocked o r only cer­
tain doors
¢ page 31.
A WARNING
Read and follow a ll WARNINGS c:> .&. in
General description on page 30.
@ Tips
- In order to make sure the locking func­
tion is working, you shou ld always keep
you r eye on the vehicle to make sure it is
properly loc ked. -
Do not use the remote control if you are
inside the car, otherwise you may unin­
tentionally lock the vehicle, and then you
would set off the anti-theft alarm when
you try to sta rt the engine o r open a
door. In case this happens anyhow, push
t he unlock button
III.
- The ve hicle can only be locked when the
selector lever is in the P position.
- Use the panic function on ly if you are in
an eme rgency s ituation.
locking and unlocking with convenience
key
A pp lies to vehicles : wi th convenience key
The doors and the rear lid can be unlocked
and locked without operating the master key .
Fig. 1 7 Conven ie n ce key: Lock ing the vehicle
Unlocking vehicle
.. Take ho ld of the door handle. The door is
un loc ked automatically.
.. Pull the handle to open the door.
locking vehicle
.. Select the P se lector lever posit ion. Other­
w ise the vehicle cannot be lo cked.
.. To lock the veh icle, close the door and tou ch
the sensor in the door handle
on ce c:> fig . 17 .
Do not reach inside the door handle.
T he veh icle can be locke d and unlocked at any
doo r. T he mas te r key mus t be wi thin a range
of about 1.5 m from the appropria te door or
the rear lid. It makes no difference whether
the maste r key is in your jacket pocket or in
your brief case.

It is not possible to re-open the door for a
brief period direct ly after closing it. This al­
lows you to ensure that the doors are properly
l ocked.
It depends on the settings in the MMI wheth ­
er the entire vehicle is unlocked or one of the
doors
¢ page 31.
A WARNING
Read and follow all WARNINGS c> ..&. in
General description on page
30.
@ Tips
-
If your vehicle has been standing for an ex­
tended period, please note the fo llowing:
- The proximity sensors are deactivated af-
ter a few days to save power. You then
have to pull on the door handle once to
unlock the veh icle and a second time to
open the veh icle.
- To prevent the battery from being dis­ charged and to preserve your vehicle's
ability to start for as long as possible,
the energy management system gradu­
al ly sw itches off unnecessary conven­
ience functions .
It is possible t hat you
will not be able to unlock your vehicle us­
ing these convenience functions.
- For Declarat ion of Compliance to United
States FCC and Industry Canada regula­
tions
Q page 283.
Operating locks with the key
In the event of a failure of the power locking
system, the driver's door can be locked and
unlocked at the lock cylinder.
F ig. 18 Key turns for ope ning and closing .
Openin g an d clos ing 33
.. Remove the mechanical key Q page 29.
.. Turn the key to the left to un lock the driv­
er 's door.
.. Turn the key to the right to lock the driver's
door c>_& .
A WARNING
Read and follow all WARNINGS Q ..&. in
General description on page
30 .
Locking and unlocking the vehicle from
inside
Fig. 19 Drive r's doo r: power locking sw itch
Fig. 20 Rear powe r lock ing switch
.. Press the button@ to lock the vehicle c> ,& .
.. Press the button@ to unlock the vehicle
¢fig . 19, Qfig . 20.
If you lock the vehicle using the power locking
switch, please note the following:
- You cannot open the doors or the rear lid
from the
outside ( increased security, for ex­
ample when you are stopped at a red light).
- The d iodes in the power locking switches il-
luminate when all the doors are closed and
locked.
- Front doors: you can unlock and open the
doors from the inside by pulling on the door
handle. .,..

44 Clear vision
Highway light function* (vehicles with LED
headlights) -this function adapts the lighting
for highway driving based on vehicle speed.
.&_ WARNING
- Automatic headlights are only intended
to assist the driver. They do not relieve
the driver of his responsibility to check
the headlights and to turn them on man­
ually according to the current light and
visibility conditions. For example, fog
cannot be detected by the light sensors.
So always switch on the headlights §.0
under these weather conditions and
when driving in the dark.
- Crashes can happen when you cannot see the road ahead and when you cannot be
seen by other motorists. Always turn on
the headlights so that you can see ahead
and so that others can see your car from
the back.
- Please observe legal regulations when
using the lighting systems described.
(D Note
The rear fog lights should only be turned
on in accordance with traffic regulation, as
the lights are bright for following traffic.
@ Tips
- The light sensor* for automatic dynamic
headlight range control* is located in the
rear view mirror mount. You should
therefore not apply any stickers to the
windshield in this area in order to pre­
vent malfunctions or failures .
- In the event of a light sensor malfunc­
tion, the driver is notified in the instru­
ment cluster display¢
page 21 .
- You will hear a warning tone if you open
the driver door when the exterior lights
are switched on.
- In cool or damp weather, the inside of
the headlights, turn signals and tail
lights can fog over due to the tempera­
ture difference between the inside and
outside. They will clear shortly after switching them on. This does not affect
the service life of the lighting.
Emergency flasher
The emergency flasher makes other motorists
aware that you or your vehicle ore in an emer ­
gency situation.
,--~
,_'
. ;.' --- --~-.sc-
Fig. 35 Center console: emergency flasher switch
.,. Press the switch 11 ¢ fig. 35 to turn the
emergency flashers on or off .
When the emergency flasher is on, all four
turn signals blink at the same time. The turn
s ignal ind icator lights
ea in the instrument
cluster, as well as the light in the emergency
flasher switch
11 blink likewise. The emergen­
cy flasher also works when the ignition is
turned off.
The emergency flashers will turn on automati­
cally if you are in an accident where the airbag
has deployed.
(D Tips
You should turn on the emergency flashers
when:
- you are the last vehicle standing in a traf­
fic jam so that any other vehicles coming
can see you, or when
- your vehicle has broken down or you are
in an emergency situation, or when
-your vehicle is being towed by a tow
truck or if you are towing another vehicle
behind you.

48 Clear vis ion
Extending /retracting th e re ar window
s h ad e*
• To extend or retract the sun shade from the
cockpit ,
press the rn button in the center
console
c> fig . 41 .
• To extend or retract the sun shade from the
r e ar of th e vehicle,
press the liiil button in
the door
c> fig . 42 .
Extending the re ar door sun shade s*
• Close the window in the rear door.
• To extend the sun shade
from the d rive r's
s eat ,
pull the left/right rear power window
switch~ in the driver's door .
• To extend the sun shade from the
rear of
th e v ehi cle,
pull the power window sw itch
~ in the left/right rear door.
Re tra cting the re ar doo r sun shades*
• To retract the sun shade from the driv er's
sea t,
press the left/right rear power window
switch~ in the driver's door .
• To retract the sun shade from the
re ar of
th e vehi cle,
press the power window swit ch
~ in the left/ right rear door .
You can adj ust the settings for the rear sun
shade so the shade ret ra cts automa tically
when you selec t the reve rse gear. Select:
CAR
function button > C ar sys tems control button
> Vehicle set tings > Aut omatic rear blind >
On. T he sett ings are automat ica lly stored and
assigned to the remote control key . The sun
shade extends again as soon as the veh icle be­
g ins traveling forward at a speed greater than
9 mph (1S km/h), as long as the ignition has not been switched off in th e mea ntime .
& WARNING
When lowe ring or raisi ng the sunshade,
make s ure there is no thing in its way and
t ha t it has a free path to trave l. This could
cause personal injury.
{D) Tips
- Pressing the b utton rn several times
consecutively can tr igger the overload
protection . The sun shade can only be ex- tended/retracted again after a brief wait­
ing period.
- The rear window sun shade on ly func­
tions when the vehicle interior is warmer
than 14°F (-10°C) .
Vanity mirror in the rear
Applies to vehicles: with vanity mirrors in the rear
Fig. 43 Rear hea dliner: van it y m irror
• Press the b utton to fold the m irror open.
The mir ro r li ght ing turns on automatically.
• To c hange the mir ro r's ang le, move it for ­
ward/back with your hand .
Wiper and washer
system
Switching the windshield wipers on
Fig . 44 Winds hield w iper leve r
Move the windshie ld wiper lever to the corre­
sponding posit ion :
@ -Windshield wipers off
(D -Rain sensor mode. The windshield wipers
switch on once the vehicle speed exceeds ap­
proximate ly 2 mph (4 km/h) and it is raining.
The higher the rain sensor sensit ivity is set
(sw itch @ to the right), the earlier the