2012 AUDI A8 ignition

92 Audi adaptive cruise control and braking guard
control will also accelerate up to the stored
speed.
The higher the speed , the greater the distance
in yards (meters)¢ .&.. T he
Distance 3 setting
is recommended .
The distances p rov ided are spec ified values.
Depending on the driving situation and the
how the vehicle ahead is dr iving, the actual
distance may be more or less than these tar­
get distances .
The various symbols for the time increments
appear briefly in the info rmation line @
¢ page
89, fig. 91 when you change the set­
tings .
c:::,_c:::, ___ Distance 1: This setting corre-
sponds to a distance of 92 feet/28 meters
when traveling at 62 mph ( 100 km/h), or a
time interval of
1 second.
c:::, __ c:::, __ Distan ce 2: Thi s setting corre­
sponds to a dis tance of 118 feet/36 meters
when traveling at 62 mph ( 100 km/h), or a
time interva l of 1.3 seconds.
c:::, ___ c:::,_ Distance 3: This setting corre-
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph ( 100 km/h), or a
time interva l of 1.8 seconds.
c:::, ____ c:::, Distance 4: This setting corre-
sponds to a distance of 210 feet/64 meters
when traveling at 62 mph ( 100 km/h), or a
time interval of 2.3 seconds.
.&_ WARNING
Following other vehicles too closely in­
creases the risk of collisions and serious
personal injury.
- Setting short distances to the traffic ahead reduces the t ime and distance
available to br ing your vehicle to a safe
stop and makes it even more necessary
to pay close attention to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe follow­
ing distance for the traffic, road and
weather conditions .
(D Tips
-Distance 3 is set automatically each time
you switch the ignition on.
- Your standard settings are automatically
stored and assigned to the remote con­
tro l key being used.
Selecting the driving mode
Applies to veh icles: w ith Audi adapt ive cr uise contro l
.,. Select the desired driving mode in dr ive se­
lect
¢ page 103 .
@ Tips
Your settings are automatically stored and
assigned to the remote control key being
used.
Prompt for driver intervention
Applies to vehicles : w it h Audi ada ptive cr uise cont ro l
Fig. 95 Instrument cluster: request for driver inte rven ­
tio n
In certa in s ituations, the system will prompt
yo u to take action . Thi s could happen, for ex­
amp le, if braking by the adaptive cruise con­
trol system is not enough to maintain enough
distance to the veh icle ahead .
The indicator light
I and the symbol in the
display will warn you about the situa tion
¢fig.
95. You w ill also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down.

94 Audi adap tive cruise control and br aking guard
stopped vehicle or stationary obstacle
(end of a traffic jam or veh icle that has
broken down in traffic).
- Always remember that the radar sensor
for the Audi braking guard works only
within defined detection and range limits
that may prevent the proper detection of
other vehicles .
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not
be promptly detected or may not be de­
tected at al l.
- Reflective surfaces includ ing crash barri­
ers or tunnel entrances may impair the
func tion of the radar sensor.
{D) Tips
- You can cancel the braking w ith increas­
i ng force that is initiated by the system
by braking yo urself, by accelerating no­
ticeab ly or by swerving.
- Audi braking guard error messages
¢page 94.
- Keep in mind that braking gua rd can
brake u nexpectedly. Always secure any
ca rgo or objec ts th at yo u are transport­
i ng to reduce the risk of damage or in­
ju ry.
Settings in the MMI
Applies to vehicles: with Audi adaptive cruise co ntrol
.. Se lect: I CARI function button > Ca r sys tem s
control button > Drive r assist > Audi b rak­
ing guard .
System -
Switch Audi braking g uard On and
Off . When you switch the ignition on, the
message
Aud i braking gua rd off appears if
the system is switched off.
Ea rly warnin g -The distance and approach
warn ings in the display can be switched
On /
Off .
(D Tips
- Your settings are automatically stored
and ass igned to the remote control key being used at the times the settings are
made.
- If you switch the ESC to sport mode, A u­
di braking gua rd switc hes off a utomat i­
cally r=:>page
189.
- Switch A udi braking guard off when you
are loading the vehicle onto a vehicle car­
rier, train, ship or other type of transpor­
tat ion. This can prevent undesired warn­
ings from the braking guard system.
Messages
Applies to vehicles: with Aud i adaptive cru ise contro l
ACC unavailable
ACC and b raking gua rd: unavailable
T he system cannot detect moving vehicles up
ahead correctly and is switched off. The sen­
sors have been displaced or a re not working
proper ly . The Audi pre sense functions may a l­
so be affected. Drive to your authorized Audi
dealer or authorized A udi service facility im­
med iate ly to have the malfunction corrected.
ACC: unavaila ble at thi s time. No sen sor vi­
sion
ACC and braking guide: un ava ilabl e at thi s
time . No s ensor vi sion
Th is message appears if the sensor v iew is ob­
structed, for examp le by leaves, snow, heavy
spray o r d irt. Clean the sensors
r=;, page 87,
fig. 86 .
ACC: unavailabl e at this time. Inclin e too
s teep
The road exceeds the max imum possible an­
gle for proper adaptive cru ise control opera­
t ion. Adaptive cru ise cont rol is switched off.
ACC: only selector lever pos itions D , S or M
available
Se lect the D, Sor M selector lever position .
ACC: un available at thi s time . Parking brake
s et
T he adapt ive cru ise control system switches
off au tomatically if the par king b rake is set. .,.

108 Night vision assistant
• Switch the ignition on and turn the light
sw itch to the
AUTO position or tD .
• To sw itch night vision ass istant on, press
the~ ,, button
c> fig. 113 . The image from
the night vision camera appea rs in the in­
strument cluster display .
• Press the button~ -, aga in to switc h night vi­
s ion assistant off .
Settings in the MMI
Applies to vehicles: with night vision assistant
Fig. 114 Displa y: examp le of pede strian detect ion and
warn ing tone switc hed off
• Select : I CARI funct ion button > Car systems
control button > Driver assist > Night vision
assist.
Highlight pedestrians -
You can switch pedes­
tr ian detection
on and off . If yo u sw itch pe­
destrian detection off, the pedestr ian war ning
tone also switches off. The symbols
II and~
appear in the upper right area of the instru­
ment cluster display
c> fig. 114.
Warning tone -You can switch the tone for
the pedestrian warning
on and off. When the
warn ing tone is switched off, a yellow symbol
for the deactivated wa rning tone with a line
through it appears in the upper right of the in­
strument cluster display
c> fig. 114 .
Contrast -When the night vis ion assistant is
switched on and the image is visible in the in­
strument cluster display, you can adjust the
contrast in the image from
Min to Max.
Driver messages
Appl ies to vehicles: with night vision assistant
Night vision assistant: system malfunction!
The system cannot work properly and is
switched off. See your authorized Audi dealer
for assistance .
Night vision assistant: not available
The system cannot detect properly under cur­
rent cond itions and is switched off tempora ri­
ly.
Night vision assistant: only available in dark­
ness and with lights switched on
Night vision assistant only works when it is
dark outside and the headlights are on .
Night vision assistant: pedestrian detection
not available
The system has deactivated the pedestrian de­
tection function.

120 Advanc ed Parking S ystem
Off -when the parking system is switched off,
only audible signa ls are given.
Warning tones
Front v olume -front sensor volume
Rea r vo lu m e -rear sensor volume
Front frequ ency -front sensor frequency
Rea r frequ enc y -rear sensor frequency
Mu sic vo lume whil e parking -when the park­
ing system is switched on, the volume of the
active audio sou rce is lowered.
The newly adjusted value is briefly heard from
the signa l generator.
(Di Tips
- The warning tones can a lso be adjusted
directly by the v isual display or the p ic­
ture from the rear v iew camera. Simp ly
press the
S ett ing s cont ro l button.
- Changed settings are activated when
parking system is switched on again .
-The sett ings are automatically stored
and ass igned to the remote control key .
Error messages
Applies to vehicles: with parking system advanced
There is an error in the system if the LED on
the
P'ljA switch is blinking and you hear a con­
tinuous alarm for a few seconds afte r switch­
ing on the parking system or when the pa rk­
ing system is already act ivated. Have your au ­
thor ized Audi dealer correct the error .
(D Tips
If
the error is not corrected before you
switch off the ignition, when you switch on
the par king system aga in , the LED in the
? ljA switch will blink.

122 Homelink®
Programming transmitters
Applies to vehicles: with Horne link
You con program the buttons in the Home­
Link universal remote control located in the
v e hicle headliner.
F ig. 1 31 Co ntrol un it in the h ead liner
Fi g. 1 32 L eft front area of the bum per
Programming a button
.. Make sure your veh icle is wi thin operating
ra nge of the remo te con trolled ga rage d oor
opener.
.. Set t he parking bra ke
~ A in General infor ­
mation on pa ge 121 .
.. Switc h the ignition on. Do not start the en­
gine!
.. The re a re two ways to program a button :
press the button that yo u would like to pro­
gram . The M MI will display instruct ions to
guide yo u th rough the programm ing . O r
.,. Se lect :
ICARI f u nct io n button > Car systems
cont rol bu tton > Vehicle settings > Garage
door opener > Program garage door open­
er .
.. Se lect t he b utton that yo u wo uld like to
program.
.. Follow the inst ructions in the MMI.
.. If the garage door openi ng must also be
synchronized wit h the Homel ink mod ule, refer to the owner
's manua l for the gar age
door opener .
Using the programmed button
.. Pres s th e pr og rammed butto n~ ,& in Gen­
eral informati on on page 1 21
to open t he
g ar age doo r. T he li ght @ will blink or tur n
on .
.. Press t he bu tton again to close the garage
door
q A in General information on
page 121.
Erasing the button programming
.. Sele ct: I CAR I func tion b utt on > Car systems
function key > Vehicle settings > Garage
door opener > Clear program settings
>
Yes .
Displaying the version/status/country
code
.. Select: I CAR I function b utton > Car systems
contro l button > Vehicle settings > Garage
door opener > Version information .
You can program both fi xed code and ro lling
code systems using these instr uctions.
Programming a button
The re quired di stance between the hand he ld
transmit ter and the Homel ink module in the
bumpe r depe nds on the system tha t you are
programmi ng . You may have to try several
t imes.
E ach of the buttons c an be re progra mmed in ­
dividua lly . The proced ure is the same as fo r in ­
itia l prog ramming .
~page 12 2, Programming
a button.
Erasing the button programming
I n di vidu al but tons ca n b e reprogr ammed. Fol­
l ow the same s teps used when fi rst prog ram ­
ming the butto n.
If y ou wo uld lik e to er ase all prog rammed but ­
t o ns at the same time, sele ct Era se bu tt on
p rogr ammi ng .

134 Safety belts
Safety belts
General notes
Always wear safety belts!
Wearing safety belts correctly saves lives!
This chapter explains why safety belts are nec­
essary, how they work and how to adjust and
wear them correctly .
.. Read all the information that follows and
heed all of the instructions and WARNINGS.
A WARNING
Not wearing safety belts or wearing them
improperly increases the risk of serious
personal injury and death.
- Safety belts are the single most effective
means available to reduce the risk of se­
rious injury and death in automobile acci­
dents . For your protection and that of
your passengers, always correctly wear
safety belts when the vehicle is moving .
- Pregnant women, injured, or physically
impaired persons must also use safety
belts. Like all vehicle occupants, they are
more likely to be seriously injured if they
do not wear safety belts. The best way to
protect a fetus is to protect the mother -
throughout the entire pregnancy.
Number of seats
Your Audi has a total of five seating positions: two in the front and three in the rear. In some
vehicles, there are four seating positions: two in the front and two in the rear. Each seating
position has a safety belt.
A WARNING
Not wearing safety belts or wearing them
improperly increases the risk of serious
personal injury and death.
- Never strap more than one person, in­
cluding small children, into any belt.
It is
especially dangerous to place a safety
belt over a child sitting on your lap. -
Never let more people ride in the vehicle
than there are safety belts available.
- Be sure everyone riding in the vehicle is
properly restrained with a separate safe­
ty belt or child restraint.
~ Safety belt warning light
Your vehicle has a warning system for the
driver and front seat passenger to remind you
about the importance of buckling-up.
Fig. 13S Safety bel t warning light in the instr ument
cl uster -enlarged
Before driving off, always:
.. Fasten your safety belt and make sure you
are wearing it properly.
.. Make sure that your passengers also buckle
up and properly wear their safety belts.
.. Protect children with a child restraint sys-
tem appropriate for the size and age .
The warning light . in the instrument cluster
lights up when the ignition is on as a reminder
to fasten the safety belts. In addition, you will
hear a warning tone for a certain period of
time .
Fasten your safety belt and make sure that
your passengers also properly put on their
safety belts.
A WARNING
-- Safety belts are the single most effective
means available to reduce the risk of se­
rious injury and death in automobile acci­
dents. For your protection and that of
your passengers, always correctly wear
safety belts when the vehicle is moving.

as defined in the electronic control unit
¢ page 153, PASSENGER AIR BAG OFF light .
Always remember, a chi ld seat or infant ca rri­
e r i nsta lled on the front seat may be struck
and knocked out of position by the rapidly in­
flating passenger's airbag in a frontal colli­
sion. The airbag could greatly red uce the ef­
fectiveness of the child restraint and even se­ riously injure the child during inflat ion.
F or this reason, and because the back seat is
the safest p lace for children -when properly
restra ined accord ing to their age and si ze -we
strongly recommend that children always sit
in the back seat
¢ page 166, Child Safety.
A WARNING
A child in a rearward-facing child seat in­
stalled on the front passenger seat will be
ser iously injured and can be killed if the
front airbag inflates -even with an Ad­
vanced Airbag System .
- The inflating a irbag w ill hit the child seat
or infant carrier w ith great force and w ill
smash the ch ild seat and child against
the backrest, center armrest, door or
roof .
- Always install rear -facing child seats on
the rear seat .
- If you mus t install a rearward facing
child seat on the front passenge r seat
because of exceptiona l circumstances
and the
PASSENGER AIR BAG OFF light
does not come on and stay on, immedi­
ately install the rear-facing chi ld seat in a
rear seating position and have the airbag
system inspected by your Aud i deale r.
- Forward-fac ing ch ild seats installed on
the front passenger's seat may interfere
with the deployment of the airbag and cause serious pe rsonal injury to the
child.
A WARNING
If, in exceptional c ircumstances, you mus t
install a forwa rd-facing child restra int on
the front passenger's seat:
A irbag system 145
-Always make sure the forward-facing
seat has been designed and certified by
its manufacturer for use on a front seat
with a passenger front and s ide a irbag.
- Never put the forward-facing child re­
straint up against or very near the instru­ ment panel.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as fa r away from
the airbag as possible before installing
the forward-fa cing ch ild restra int. The
backrest mu st be ad justed to an upright
posi tion.
- Ma ke sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the
time wheneve r the ignit ion is swi tched
on.
A WARNING
To reduce the risk of serious injury, make
sure that the
PASSENGER AIR BAG OFF
light will be displayed whenever a child re­
straint is installed on the front passenger
seat and the ignition is sw itched on.
- If the
PASSENGER AIR BAG OFF light
does not stay on, perform the checks de­
scribed
¢ page 153, Monitoring the Ad­
vanced Airbag System .
-Take t he chi ld restraint off the front pas­
senger seat and install it properly at one
of the rear seat positions if the
PASSEN­
GER AIR BAG OFF
light does not stay on.
- Have the airbag system inspected by
your Aud i dea le r i mmediately.
- Always carefully follow instr uctions from
child restraint manufacture rs when in­
stalling c hild restra ints.
A WARNING
If, in e xcept io na l circumstances, you must
ins tall a forward o r rearwa rd-facing child
restra int on the front passenger's se at:
- Imp roper install ation of ch ild restrai nts
can reduce their effec tiveness o r even
preven t them from providing any protec­
tion. •
•

-Always make sure the forward-facing
seat has been des igned and certified by
its manufacturer for use on a front seat
with a passenger front and side airbag.
- Never put the forward-facing child re­
straint up aga inst or very near the instru­
ment panel.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as far away from
the a irbag as poss ible, before insta lling
the fo rward -facing child restraint. T he
b ackres t m ust be adjus ted to an upr igh t
posit ion.
- Make su re that the
PASSENGER AIR BAG
OFF
light comes on and s tays on all the
t ime whenever the ignition is switched
on .
Advanced Airbag System components
The front passenger seat in your vehicle has a
l ot of very important parts of the Advanced
Airbag System in it. These parts include the
weight-sens ing mat, sensors, wiring, brack­
ets, and more . The function of the system in
the front passenger seat is checked by the
e lectronic control un it when the ign it ion is on .
The control un it mon itors the Advance d Air ­
bag Sys tem and turn s the a irbag i ndica tor
light on when a ma lfunction in t he system
compo nents is detected . The function of the
ai rbag indicator light is described in greater
deta il below. Because the front passenger
seat contains important parts of the Ad­
va nced A irbag System, you must take care to
prevent it from being damaged . Damage to
the seat may p revent the Advanced A irbag for
the front passenger seat from doing its job in
a crash .
The front Advanced Airb ag System
consists of the following:
- Crash senso rs in the front of the veh icle that
measu re ve hicle accelera tion/decele ra ti on
to provide info rm ation to the Advanced Air ­
bag System abo ut the severity of the crash.
A irbag system 149
-An elect ron ic cont ro l unit, with integrated
crash sensors for front and side impacts .
The control un it "decides" whether to f ire
the front a irbags based on the informat ion
received from the crash sensors. The control
unit also "decides" whether the safety belt
prete nsione rs shou ld be act iva ted.
- An Advanced A irbag w it h gas generator and
cont ro l valve for the d river ins ide the steer ­
ing wheel h ub.
- An Advanced A irbag w ith gas generator and
cont ro l valve inside the instrument pa ne l for
the front passenger .
- A weight -sensing mat unde r the upho lstery
padding of the front passenge r seat cushion
that measures the to tal weight o n the seat.
The info rmat ion reg iste red is sent continu­
ously to the elect ronic con trol u nit to regu ­
la te deployment of the front Advanced Air ­
bag on the passenger side .
- An airbag moni tor ing sys tem and ind icator
light in the instr ument cluster
¢ page 153.
-A sen sor in each fron t seat regis ters the dis ­
t ance betwee n the respec tive seat and the
steering whee l or instrument panel. The i n­
formation registered is sent cont inuo usly to
the electron ic contro l unit to regulate de­
ployment of the front Advanced A irbags .
- The
PASSENGER AIR BAG OFF light comes
on and stays on in the center o f the instr u­
ment panel¢
page 153, fig. 148 and tells
you whe n the front Advanced Airbag on the
passe nger side has been tu rned off.
- A sensor below the safety belt latch for the
front seat passenger to measure t he tension
on the safety belt. The tension o n the safety
be lt and the weight regis tered by the
weigh t-sensi ng ma t he lp the control uni t
"de cide" whe ther the front airbag fo r the
front passenge r seat should be turned off or
not ~
page 144, Child restraints on the
front seat -some important things to
know.
- A sensor in t he safety be lt latch fo r the d riv­
er and for the front seat passenger that
senses w hethe r th at safety belt is latched or
not and transmits this information to the
electronic control unit.
•
•