2012 AUDI A8 engine

Instruments and warning/indicator lights 2 7
Continue driving with reduced power (avoid­
ing sustained high speeds and/or rapid accel­
erat ions) and have the condition corrected.
Contact your author iz ed Audi dealer.
If the light ill uminates, the electronic speed
limiter may also be ma lfunctioning . For more
information ¢
page 2 7, Electronic speed
limiter .
An improperly closed fuel fi ller cap may also
cause the MIL light to ill uminate ¢
page 217.
On-Board Diagnostics
Fig. 12 Loca tion of Data Li nk Connector (DLC)
On-Board Diagnostics monitors the compo­
nents of yo ur emission control system. Each
mon itored component in your engine system
has been assigned a code. In case of a ma l­
function, the component will be identified and the fault stored as a code in the contro l
module memory.
The MIL light may a lso illuminate if there is a
l eak in the on-board fue l vapor recovery sys­
tem. If the light illuminates after a ref uelling,
stop the veh icle and make sure the fue l filler
cap is properly closed ¢
page 217.
In order to make an accurate diagnosis, the
stored data can only be displayed using spe­
cial diagnostic equipment (gener ic scan tool
for OBD).
In order to connect the special diagnostic
eq uipment, push the plug into the Data Link
Connector (DLC). The DLC is located to the right of the hood release¢
fig. 12.
Your authorized Audi dea ler or a qualified
service station can interpret the code and per­
form the necessary repair.
A WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
malfunctions, wh ich can increase the risk
of a collision!
Electronic speed limiter
-
Your vehicle may be factory equipped w ith
t ir es that are rated fo r a maximum speed of
130 mph (210 km/h). This is less than the
maximum speed of your vehicle . To reduce the
risk of sudden tire fai lure and loss of control if
the vehicle is operated at excessive speeds,
your vehicle a lso has an e lectronic speed limit­
er . The e lectronic speed limiter prevents your
vehicle from going faster than the tire speed rating . For more information ¢
page 246.
If the engine contro l unit receives faulty vehi­
cle road speed signa ls, the Ma lfunction Indi·
cator Lamp (MIL)
fllllij w ill illuminate. If this
occurs, contact the nearest authorized Audi
dealer for assistance .
A WARNING
-
Always observe the posted speed limits
and adjust your speed to suit prevailing road, traffic and weather conditions. Never
drive your vehicle faster than the maxi­
mum speed rating of the tires installed.

28 Opening and closing
Opening and closing
Keys
Key set
Fig. 13 Key set
@ Remote control key with mechanical
key
You can centrally lock and unlock your vehicle
and start the engine with the master key with remote control. A mechanical key is integrat­
ed in the remote control key
c:> page 29 .
@ Emergency key
The emergency key is not intended for con­
stant use.
It should only be used in an emer­
gency. Keep it in a safe place and do not carry it on your key ring.
Key replacement
If you lose a key, contact your authorized Audi
dealer immediately to have the
lost key disa­
bled. Be sure to bring all your keys with you.
Personal comfort settings
If two peop le use one vehicle, it is recom­
mended that each person always uses "their
own" master key . When the ignition is switch­
ed off or when the vehicle is locked, personal
convenience settings for the follow ing sys­
tems are stored and assigned to the remote
master key.
- Automatic climate control
- Central locking system
- Rear window sun blind
- Amb ient lighti ng
- Seat memory
- Parking system* - Adaptive cruise control*
-
Aud i lane assist*
- Aud i side assist*
-Audi drive select
- Night vision assistant*
- Heated steering wheel *
T he stored settings are automatically recalled
when you unlock the vehicle, when you open
the doors or when you switch the ignition on.
A WARNING
-- Do not leave your vehicle unattended. Al­
ways take your ignit ion key with you and
lock your vehicle. Entry by unauthorized
persons could endanger you or result in
theft or damage the vehicle.
- Do not leave ch ildren unattended in the
veh icle, especially with access to vehicle
keys. Unguarded access to the keys pro­
vides children the opportunity to start
the engine and/or activate vehicle sys­
tems such as the power windows, etc.
Unsupervised operation of any vehicle
system by children can result in serious
injury.
(D Tips
- The operation of the remote control key
can be temporarily disrupted by interfer­
ence from transm itters in the vic inity of
the vehicle working in the same frequen­
cy range (e .g. a cell phone, radio equip­
ment).
- For security reasons, replacement keys
are only available from Audi dealers.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions<=>
page 283.

Removing the mechanical key
Fig. 14 Remote control maste r key : re mov ing the me­
c han ical key
• Press the release button@ ¢ fig. 14.
• Pull the mechanica l key @ out of the mas ­
ter key.
Using the mechan ica l key, you can:
- lock and unlock* the storage compartment
on the passenger's side
<=:> page 71.
-lock and unlock the vehicle manually
c:>page 33 .
-lock the front and rear passenger doors me­
chanically
c:> page 34.
- unlock the rear lid manua lly ¢ page 37 .
Check light and battery in the master
key
Fig. 15 Remote master key : Re mov ing the battery
holder
Check light in the master key
The check light @<=:> fig. 15 in the master key
prov ides information about different cond i­
tions.
• The check light turns on brief ly once when a
button is pressed, and during an "inqu iry"
by the convenience key system .
Opening and closing 29
• If the check light does not come on, the
battery is dead and has to be replaced. In
add ition, when the battery is dead
the m
indicator light appears in the instrument
cluster display as well as the message
Please change the key battery .
Master key battery replacement
We recommend having the battery changed
by an authorized Audi dealer. However, if you
wish to replace the dead battery yourse lf , pro­
ceed as follows:
• Remove the mechanical key
c:> page 29.
.. Press the re lease button ® c:> fig. 15 on the
battery holder and at the same time pull the
battery holder out of the master key in the
direction of the arrow .
.. Install the new battery CR 2032 with the
"+" sign facing down.
• Push the battery holder carefu lly into the
master key.
• Install the mechan ical key.
(® For the sake of the environment
Dispose of dead batteries properly so as
not to poll ute the environment.
(D Tips
The replacement battery must be the
same specification as the original.
Electronic immobilizer
The immobilizer helps to prevent unauthor­
ized use of your vehicle .
A computer chip inside your key automatically
deact ivates the electronic immobilizer when
the key is inside the vehicle . When you remove
the key from the vehicle, the elect ronic immo ­
bilizer is automatically activated once again.
& WARNING
Always take the key with you when you
leave the vehicle. The key can disarm the
e lectronic engine immobilizer and permit
an unauthorized person to start the engine
and enable operation of the vehicle
IIJI,-

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.

- The buttons for the power sun shades* in
the side windows,
- The buttons for the power sun shade* in the
rear window,
- Front passenger power seat adj ustment *
button.
_& WARNING
- When you leave your vehicle -even if on­
ly briefly- always take the ignition key
with you. This applies particularly when
children remain in the veh icle. Otherw ise
the ch ildren could start the engine or op­
erate electrical equ ipment (e.g. power
w indows) . The power windows are func­
t ional until t he driver's door or passeng­
er's door has been opened.
- Be careful when closing the windows.
Check to see that no one is in the way, or
serious injury could result!
- When lo cking the veh icle from outside,
t he ve hicle must be unocc upied s in ce the
w indows can no longer be opened in an
emergency.
(D Tips
- The dr iver can lower or raise the power
sun shades * in the side windows by us ing
swi tches © and
@.
-After the ignition has been switched off,
the windows can still be opened o r
closed for about 10 minutes . The powe r
windows are not switched off until the
driver's door or passenger's door has
been opened.
What to do after a malfunction
The one-touch open and close function must
be reactivated if the battery hos been discon ­
nected.
• Pull and hold the power window switch un­
ti l the window is fully closed.
• Release the switch and then pull it again for
at least one second .
Openin g an d clos ing 39
Valet parking
The valet parking feature protects the lug­
gage comportment from unauthorized ac­
cess.
F ig. 30 Valet par king button
Wi th "valet parking" a ctivated, the rear lid
cannot be opened.
• Remove the mechanical key
c::;, page 29 .
• Open the glove compartment and activate
c::;, fig. 30 the "valet parking" feature by
pressing the
! VALET I b utton. The indicator
light in the swi tch illuminates.
• Close the glove compartment and lock it
w ith the mechanical key.
• Leave the master key with the se rvice per ­
sonnel for park ing and keep the mechanical
key with you.
When the "valet parking" feature is activated:
- the unlocki ng button fo r the rear l id
c:s in
the dr ive r's door is inactive
- the button
c:s on the mas ter key is inac tive
- the opening handle in the rear lid is inact ive .
The vehicle can be driven and locked and un­
locked with the master key. Access to the lug­
gage compartment is blocked.
When the valet parking function is switched
on, the message
Vale t par king acti vated ap­
pears in the instrument cluster display when
you sw itch the ignition on.

64 Seats and storage
Full-length center
console
Overview
Appl ies to vehicles: with full-len gth ce nter console
Fig. 61 Rear: full -length center console
@ · 115 volt socket ¢ page 64
@ · cupholder <=> page 71
© · 12 volt socket c:> page 70
@ · Folding table ¢ page 65
®·center armrest and storage com part ·
ments: to open the deep compartment, press
the right button and fold the center armrest
upward. To open the compartment for the
massage function remote control*
c:> page 60
and for the telephone*, press the left button
and fold the center armrest upward.
115-volt socket
Applies to vehicles: with 115 -vo lt socket
The 115-volt socket can only be used when
the engine is running¢
A. When you push
the connector all the way into the socket, the
child safety mechanism releases and current
flows through the socket .
Equipment that can be connected
Electrical devices can be connected to the 115
volt socket in the vehicle. Power consumption
at the 115-volt socket must not exceed 150
watts (300 watts peak) . Check the power con·
sumption of the equipment on the model
plate .
LED on the socket
-The socket is ready for use when the LED is
green.
- If the LED blinks red, there is a malfunction.
The socket will switch off automatically due
to overcurrent or overheating. The socket
will switch on again automatically after a cool-down period. Any devices that are con­
nected and switched on will activate again
automatically
c:> A .
A WARNING
-
- The sockets and the electrical accessories
connected to them operate only when
the ignition is switched on. Incorrect us­
age can lead to serious injuries or burns.
To reduce the risk of injuries, never leave
children unattended in the vehicle with
the vehicle key.
- Heavy equipment or plugs with integrat­
ed power supply units can damage the
socket and lead to injuries.
- Store a ll connected equipment securely
while the vehicle is moving so that they
cannot be thrown through the vehicle in
the event of a braking maneuver or an
accident.
- Never spill any liquids on the socket. If
any moisture gets into the socket, make
certain that all the moisture has dried up before using the socket again.
- Equipment that is connected to the vehi·
cle socket can heat up more than it does
when connected to the public grid .
- When using adapters and extension
cords, the child safety for the 115-volt
socket is disabled and the socket is live.
- Never insert anything other than the
plug of an appropriate electrical accesso·
ry into the socket, especially things that
conduct electricity, e.g. metal pens, knit­
ting needles, etc. into the contacts of the
115-volt socket.
- Turn the electrical equipment off if the
socket has switched off because of over·
heating.

70 Seats and storage
-Never exceed the maximum permissible
load carrying capacity of the roof of your
vehicle, the permissible axle weights and
the permissible total weight of your vehi­ cle
c::, page 276, Weights .
@ For the sake of the environment
As a result of the increased wind resist­
ance created by a roof rack, your vehicle is
using fuel unnecessarily. So remove the
roof rack after using it.
12-volt sockets
Applies to vehicles: 12-volt soc kets
Electrical accessories can be connected to ev­
ery 12-volt socket.
Fig. 71 Sect io n of the trim panel of th e lu ggage com­
part ment: 12 -vol t soc ket
Fig. 72 Rear center conso le: 12-vo lt soc ket
... Open the socket cover c::, fig. 71 or c::, fig. 72 .
... Insert the plug of the electrical device into
the socket.
There is an additional 12 volt socket in the
front center console~
page 71, fig. 73.
The 12 volt sockets may be used for 12-volt
appliances with maximum consumption of up
to 100 watts . Before you purchase any accessories, always
read and follow
the information in
c::, page 282, Additional accessories and parts
replacemen t.
A WARNING
The sockets and the electrical accessories
connected to them operate only when the ignition is switched on . Incorrect usage
can lead to serious injuries or burns. To re­
duce the risk of injuries , never leave chil­
dren unattended in the vehicle with the ve­
hicle key.
(D Note
To avoid damaging the socket, only use plugs that fit properly.
- Never connect equipment that generates
electrical current, such as a solar panel
or battery charger, to the 12 volt socket .
This could damage the vehicle 's electri­
cal system.
- The 12 volt socket should only be used
for a short period of ti me as a power
source for electrical equipment. Please
use the electrical sockets in the vehicle
when connecting equipment for longer periods.
@ Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle bat­
tery can still be drained.

- the temperature in the luggage compart­
ment is below 131 °f (55 °C). The cooler
switches off automatically if the tempera­
ture in the luggage compartment exceeds
131 °f (55 °C) . Once the temperature falls
below 131 °f (55 °C) again, the cooler
switches on aga in automatically .
- the battery is adequately charged . The cool­
er switches off automatically if the vehicle
battery voltage falls below a minimum lev­
el. This prevents the battery from discha rg­
i ng . The cooler switches back on again auto­
matically when the battery voltage increases
again (e.g . after starting the engine).
The cooler cools to 42.8 °f
(+ 6 °C) and the
freezer cools to 21.2 °f (-6 °C) in opt imum
cooling cond itions . Th e cooling performance
is affected by the temperature in the luggage
compartment. The temperature inside the
cooler will be higher if the luggage compart­
ment is hot.
A WARNING
To avoid putting the occupants at any risk,
please observe the following safety rules:
- The maximum capacity is 2.5 kg (5.5
lbs.).
- Never overload the cooler. This could
cause injury in the event of a collision or
sudden braking.
- The coo ler lid must always be kept closed
while you are driving. Make sure the re­
taining catch is securely engaged. The
contents of the coo ler could be thrown
forward into the passenger compart­
ment in the event of a collision or under
sudden braking - risk of injury!
- Inflammable liquids, gas canisters, etc.
must not be stored in the cooler -risk of
exp losion! This also includes any prod­
ucts that might emit volatile or inflam­
mable gases.
- Liquids will freeze at temperatures at or
below 32 °f (0 °C) and may cause glass
bottles to burst!
Seats and storage 73
(D Note
-The venti lation openings for the cooler
are located on the back pane l trim in the
luggage compartment and
must be kept
clear at all t imes.
- If the cooler is not functioning properly,
switch it off to prevent further damage.
Have it checked by a qualified workshop .
Operation
Applies to vehicles: wit h coo ler
Fig. 76 Rea r ce nte r armre st
The cooler is located in the rear cabin behind
the center armrest or behind the sliding cover (depending on the equipment fitted in your
vehicle) . The cooler and freezer only work
when the ignition is on .
Opening / closing the cooler
.,. To open the cooler, pull the release lever@
~ fig. 76.
.,. To close the cooler, push the lid back into its
original position. You should hear the re­
lease lever
(D engage if the lid is properly
closed.
Switching on /off
.,. Press button @ 9 fig. 76 to sw itch the cool­
er on/off. The symbol in the button is lit
when this function is activated .
.,. Press button
@ to switch the freezer on/
off . The symbol in the button is lit when this
function is activated .