2011 AUDI S8 key

the stored position as soon as you switch on
the ignition.
Starting and stopping
the engine
Starting the engine
This button switches on the ignition and
starts the engine.
Fig. 80 Center console: S TART ENGINE S TOP b utton
" Step on the brake pedal¢&_ .
.. Press on the !START ENGINE STOP I button
¢ fig. 80 -the engine w ill start .
By pressing the
I START ENGINE STOP I button
without depressing the brake pedal, the igni­ tion is on and switched off by pressing it
again.
After a cold engine is started, there may be a
brief period of increased noise because oil
pressure must first build up in the hydraulic
valve adjusters. This is normal and not a cause
for concern.
If the engine should not start immediately,
the starting process is automatically stopped
after a short time. Repeat starting procedure.
Driver message in the instrument cluster
display
Press brake pedal to start engine
This message appears if you press the
I START ENGINE S TOP I button to start the en­
gine and do not depress the brake pedal. The
engine can only be started if the brake pedal is depressed.
!! Convenience key: Is key not in the vehi­
cle?
On the road 79
This message appears along with thee sym ­
bol if the master key is removed from the ve­
hicle with the eng ine running.
It is intended
to remind you (e.g . when changing drivers)
not to continue the journey without the mas­
ter key.
If the master key is no longer in the veh icle,
you cannot switch on the ignition after stop­
ping the engine and you also cannot start the
engine again . Moreover, you cannot lock the
vehicle from the outside with the key.
Shift to P, otherwise vehicle can roll away.
Doors do not lock if lever is not in
P.
This message appears for safety reasons
along with an audible warning tone if the
P
selector lever position is not engaged when
stopping the engine with the
I START ENGINE STOP I button. Select the P se­
lector lever position . Otherwise the vehicle
cou ld roll and it cannot be locked .
Key not recognised. Hold back of key against
marked area . See owner's manual.
If the indicator light turns on and this mes­
sage appears, there is a malfunction
¢ page 80.
Steering lock
The steering locks when you turn the engine
off using the
I START ENGINE STOP I button
and open the driver's door. The locked steer­ ing helps prevent vehicle theft.
A WARNING
- Never allow the engine to run in confined
spaces - danger of asphyx iation.
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- The brake booster and power steering
only work when the engine is running. If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usual­
ly would, this could lead to crashes and
serious injuries.

80 On the road
(D Note
-Avoid hig h engine rpm, fu ll throttle and
heavy engine loads unti l the engine has
reached operating temperat ure -other­
wise you risk eng ine damage.
- The engine cannot be started by pushing
or towing the vehicle.
- If the engine has been under heavy load
for an extended period, heat b uilds up in
the engine compartment after the en­
gine is switched off - there is a risk of
damaging the engine . Allow the eng ine
to run at idle for about 2 minutes before
switching it off.
@ Tips
If you open the driver's door with the igni­
tion on, a buzzer sounds and the message
Igniti on is on appears in the instrument
cluster display. Sw itch the ignition off .
Stopping the engine
• Bring your vehicle to a complete stop.
.. Move the se lector lever to the
P or N pos i­
t ion .
.. Pre ss the I STAR T ENGINE ST OP I button
r:> page 79, fig. 80 .
Emergency off
If necessary, the engine can be switched off
with the selector lever in the
R , D or S posi­
tions . The engine stops if you press the
I S TAR T ENGINE ST OP ! button at speeds be low
6 mph (10 km/h).
A WARNING
- Never turn off the eng ine unti l the vehi­
cle has come to a complete stop.
- The brake booster and power steer ing
only work when the engine is runn ing .
If
the engine is off, you have to use more
force when steering or braking. Because
you cannot steer and brake as you usua l­
ly wo uld, this could lead to crashes and
serious injuries. -
For safety reasons, you should a lways
park your vehicle w ith the selector lever
in P . Otherwise, the vehicle could inad­
vertently roll away .
- After the engine has been switched off,
the radiator fan can cont inue to run for
up to 10 minutes -even with the ignition
sw itched off. It can also sw itch on again
after some time if the coolant tempera­
ture rises as the result ofa heat bu ildup
or if the engine is hot and the engine
compartment is additionally heated by
the sun's rays .
(D Note
Do not stop the eng ine immedia tely after
hard o r extended driving. Keep the engine
running for approximate ly two minutes to
prevent excessive heat bui ld-up.
Starting the engine if there is a
malfunction
It may not be possible to start the engine un­
der certain circumstances, for example if the
battery in the vehicle key is drained, if inter­
ference is affected the key or if there is a sys­
tem malfunction.
"' ij
:c
-- --- -~
Fig . 81 Ce nter co nsole/master key: start ing the e ngin e
i f there is a malfunct ion
Requirement: The message K ey not recog­
niz ed . Hold back of ke y again st ma rked are a.
See o wner's manual.
must appear and the in ­
dicator light
m must switch on .
.. Hold the master key vertically in the loca­
tion indicated
y >>) <=> fig . 81.
• Press the brake pedal r=> & in Starting the
engine on page 79 .
IJ>,

82 On the road
-Occasiona l noises when the parking
brake is applied and re leased are norma l
and are not a cause for concern .
- When the vehicle is parked, the parking
brake goes through a se lf-test cycle at
regular intervals. Any assoc iated noises
are norma l.
Parking
Various rules apply to prevent the parked ve­
hicle from rolling away accidentally.
P ar king
,. Stop the vehicle w ith the foot brake.
,. Pull the switch© to apply the parking
brake.
,. Se lect the
P se lector lever position
9 page 112.
,. Turn the eng ine off q _&. .
In addition on incline s and grad es
,. Turn the steering whee l so that your vehicle
wi ll ro ll against the curb in case it should
start to move .
A WARNING
-When you leave your veh icle -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 sta rt t he engine, re­
lease the p arking brake or operate e lec­
trical equipment (e .g. power windows) .
T he re is the risk of an accident.
- When the vehicle is loc ked, no one -par­
t icu la rly not children sho uld remain in
the vehicle . Locked doors make it more
difficult for emergency workers to get in­
to the vehicle -putt ing lives at risk.
Start ing from rest
The starting assist function ensures that the
parking brake is released automatically upon starting.
Stopping and appl ying par kin g brake
,. Pull the switch© to apply the parking
brake.
St arting and automatic ally rel easi ng the
parking b rake
,. When you start to dr ive as usual, the park ­
ing brake is automat ically released and your
veh icle beg ins to move.
When stopping at a traffic signal or stopping in city traffic, the parking brake can be ap­
plied . The vehicle does not have to be held
with the footbrake . The parking brake elimi ­
nates the tendency to creep w ith a dr ive range
engaged. As soo n as you d rive off as usual,
the pa rking brake is re leased automatically
and the vehicle s tarts to move.
Sta rting on slopes
When starting on inclines, the starting assist
prevents the veh icle from u nintent ionally roll­
i ng back. The braking fo rce of the par kin g
brake is not re leased unti l su ff ic ient d riving
f orce has been built up a t the wheels.
(D Tips
Fo r safety reasons, the pa rking bra ke is re­
l eased automatically o nly when t he d riv­
er's safety belt is engaged in the buckle.
Starting off with a trailer
To prevent rolling back unintentionally on an
incline, do the following:
,. Keep the sw itch(®) pulled and depress the
accelerator. The pa rking brake stays applied
and p revents the vehicle from roll ing back­
ward .
,. You can release the switch© once you are
sure that you are developing enough for­
ward momentum at the whee ls as you de ­
press the acce lerator.

92 Adaptive cruise control and braking guard
-Your standard settings are automatically
stored and assigned to the remote con­
trol key being used .
Audi braking guard
Description
Applies to vehicles: wit h adapt ive c ru ise control
Fig. 94 Instrument cluster: approach warn ing
Audi brak ing guard uses radar sensors and a
video camera . It is active at speeds above
about 6.2 mph (10 km/h) and also works
within system limits when adaptive cruise control is switched off.
On vehicles with aAdaptive cruise control and
Audi side assist (Audi pre sense plus), system
functions also engage when a co llision is im­
minent
¢page 188.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud­
denly or if your own veh icle is traveling at a
h igh speed and approaching a vehicle up
ahead that is moving more slowly. Audi brak­
ing guard does not react if it cannot detect
the situation.
The system advises you of various kinds situa­ tions :
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If
the vehicle ahead brakes sharply, you will not be able to avoid a coll is ion. The ind icator
light
I i n the d isplay comes on. Take imme ­
diate action to avoid the coll is ion and in­
crease the distance to the vehicle up ahead. -
The
approach warning is given when a de­
tected vehicle up ahead in your lane is mov­
ing much more slowly that you are or if it
brakes sharp ly. When this warning is given,
it may only be possible to avoid a collision
by swerving or braking sharp ly . The indicator
light
I and the symbol in the disp lay will
warn you about the danger
c:> fig. 94 . You
w ill also hear an acoustic signal.
If you do not react fast enough or do not react
at all to the situation, Aud i braking guard w ill
intervene by braking and the message
braking
guard intervention
w ill appear.
- If a coll is ion is imminent, the system will
first provide an
acute warning by brak ing
sharply .
- If you do not react to the acute warning, Au­
di braking guard will brake w ith increased
force in severa l stages to reduce the speed
in a possible collisio n. On ve hicles w ith
adaptive cruise contro l and Audi side assist
(Audi pre sense plus), the system can brake
with increasing force up to maximum decel­
eration shortly before a sensed collision
¢ page 188.
- If
the Audi braking g uard senses that you
are not braking hard enough when a colli­
sion is imminent, it can increase the braking
force.
Audi braking guard takes the driver's reaction
time into consideration in order to provide
timely warnings. The system reaction time de­ creases automatically in some situations, for
example when it detects accelerator pedal use
or steering input . The Audi braking guard in­
tervent ion stops in certa in situations, for ex­
amp le if you press the accelerato r pedal to
pass the vehicle moving ahead of you in your
lane.
Which functions can be controlled?
You can switch Audi braking guard and the
distance/approach warning on or off in the
M M I c:> page 93, Settings in the MMI.

Adaptive cru ise co ntrol and b rakin g guar d 93
A WARNING ,~
The Audi braking guard is an assist system
and cannot prevent a collis ion by itself.
The driver must always intervene. The driv­ er is always responsible for braking at the
co rrect time.
- Always pay close attention to traffic,
even when the Aud i brak ing guard is
switched on. Be ready to intervene and
be ready to take complete control whe n­
ever necessary. Always keep the safe and
legal distance between your vehicle and
vehicles up ahead.
-Audi braking guard works within limits and wi ll not respond outside the system
limits, for examp le when approaching a
stopped vehicle or stationary obstacle
(end of a traff ic jam or vehicle that has
broken down in traffic).
- Always remember that the radar sensor
for the Audi braking guard works only
within defined detect ion 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 c rash ba rr i­
ers or tunnel en trances may impair the
function of the radar sensor .
(D Tips
Innattention can cause collisions, other ac­
cide nts and serious persona l injuries.
- You can stop the Audi b raking guard in­
te rvention w ith increas ing braking force
by applying the brakes yourse lf or by a c­
ce le rat ing rapidly.
- Audi braking guard error messages
¢page 93.
Settings in the MMI
App lies to vehicles : wi th adap tive c ruise contro l
.,. Select: !CAR ! function button> Car sy ste m s
cont ro l butto n > Driv er a ssist> Audi brak ­
ing gua rd .
S ys tem -
Switch Audi b raking guard On and
Off . When you switch the ign it ion on, the
message
Audi br aking guard off appears in
the instr ument cluster d isp lay if the system is
switched off.
E arly warning -The distance and approach
warnings in the d isplay can be switched
On/
Off.
(D Tips
- Yo ur settings are automatically stored
and assigned to the remote cont ro l key
being used at the times the settings are
made.
- If you switch the ESP to sport mode, A u­
di braking guard switches off a utomati ­
cally
¢page 192.
Messages
App lies to vehicles : wi th adap tive c ruise control
ACC una vailable
ACC and braking guard: unavailabl e
The system cannot detect moving vehicles up
ahead co rrectly and is switched off . The sen­
sors have been d isplaced or are not worki ng
proper ly. The Audi pre sense functions may a l­
so be affected.
ACC: unavailabl e at this time. No sensor vi ­
s ion
ACC and b rak ing gu ide: una vailable at this
time . No s enso r vision
This message appears if the sensor view is ob­
structed, for examp le by leaves, snow, heavy
spray or d irt . Clean the sensors¢
page 86,
fig. 85.
ACC: unav ailable at this time. Incline too
steep

Audi lane assist: currently not available. no
sensor vision
This message appears if the camera is unable
to detect the lines. This could happen if:
- The camera field of view
c::> page 95, fig . 96
is dirty or covered in ice. Clean the area on
the windshield.
- The camera field of view is fogged over. Wait
until the fog has cleared before switching
lane assist on.
- The system has been unable to detect the
lanes for an extended period of time due to
road conditions such as lanes covered in
snow. Switch lane assist back on when the
lines are more visible.
Audi lane assist: currently not available
There is a temporary lane assist malfunction.
Try switching lane assist on again later.
Audi lane assist: system fault
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected.
Setting the warning point and steering
wheel vibration
App lies to vehicles: with lane ass ist
You can adjust individual settings in the MMI.
~ Select : ICARI function button> Car systems
control button > Driver assist > Audi lane
assist.
Setting the warning point Early:
With this setting, a warning is provided
before a wheel touches the detected lane
boundary line. The warning depends on the
angle in which the vehicle is approaching the
line. The distance at which the warning is giv­
en increases as the angle becomes sharper. If
you drive toward a boundary line at a very sharp angle, the warning will come just before
a wheel touches the line.
Medium: With this setting, the warning point
is adapted to the course of the road, the lane
width and the speed. You will still be warned
Audi lane assist 97
if you cross slightly over a dotted line when
driving on curves.
Late: This setting has the same properties as
medium. You will only be warned once a
wheel crosses a detected line.
Setting the steering wheel vibration
The steering wheel vibration can be set to
Low, Medium or Strong. Selecting each of the
settings will cause the steering wheel to vi­
brate so you can check the strength of the vi­
bration in that setting.
(D Tips
Your settings are automatically stored and
assigned to the remote control key being
used.

MMI settings
Applies to vehicles: with side assist
The basic brightness setting of the signal on
the outside mirror can be adjusted via the
MMI.
~ Select: ICARI function button> Car systems
control button > Driver assist > Audi side
assist.
The brightness of the signal light for both the informational and alert stages is automatical­
ly adjusted to ambient light conditions. In ad­
dition, you can adjust the
basic brightness
separately, via the brightness function .
While making the adjustment, the new brightness setting is displayed briefly . The
brightness displayed is that of the informa­
tional stage signal. The alert stage signal
brightness is linked to the informational stage
signal brightness.
The informational stage signal brightness
should be adjusted so that you notice the sig­
nal illumination when you look in the outside
mirror, but not when you look forward
through the windshield .
In very dark or light surroundings, the auto­
matic brightness setting adjusts signal light
brightness to maximum or minimum intensi­
ty, as needed. In circumstances such as these,
you may not notice any change in the bright­
ness on the outside mirror when adjusting the
basic brightness. You may not notice the
change until lighting conditions are normal
again.
(D Tips
- Side assist is not active when the basic
brightness is adjusted. The signal light
comes on briefly to help you make the
adjustment .
- Your settings are automatically stored
and assigned to the remote control key
being used.
Audi side assist 103
General information
Applies to vehicles: wit h side assist
Side assist has limits and cannot detect vehi­
cles under all road and weather conditions.
Please remember system limitations and nev­
er rely on the system, especially when :
- driving through curves
~page 103,
-lanes are of different widths ¢ page 103.
When driving through curves
Applies to vehicles: wit h side assist
Side assist cannot detect vehicles in curves
with a turning radius of less than 328 feet
(100 m).
When driving through a curve, it is possible
that side assist may register a vehicle two
lanes over, and the signal on the outside mir­
ror will light up.
Lane width
Applies to vehicles: wit h side assist
Fig. 107 Lanes of a normal width are in detectio n area
Fig. 108 Narrow lanes: Sid e assist may detect vehicles
two lanes away
Side assist's detection area is designed to cov-
er lanes of standard width to the left and ..,.

108 Audi drive select
pedal movements, and steering is sporty and
more direct*. The sport differentia l* provides
mo re agility, the air suspension is tighter and
the transm ission shifts at a higher RPM. The
cornering light also reac ts in a sporty way. The
setting is ideal for sporty driving.
Individual
You can adapt this mode to your personal
needs in the MMI
¢page 108.
A WARNING
Pay attention to traff ic when operating Au­
di dr ive se lect to prevent potent ial risk of
an accident .
Adjusting the Individual mode
You can adjust the vehicle settings to your
personal preference s.
.. Se lect : I CAR ! function button > Set individu-
al
control button.
The
individual driving mode will automatical­
l y be activated when yo u have finished config­
uring the settings.
The equipmen t in your veh icle w ill de termine
which settings you can adj ust.
(D Tips
Your individual mode settings are auto­
mat ica lly stored and assigned to the re­
mote control key being used.
Raising/lowering the
vehicle
Raising the vehicle
You can raise your ve hicle temporarily, for ex­
ample to drive over a tall curb .
.. Select the following in the MMI: ICAR!func­
t ion button >
Raise cont ro l button .
.. Wait for the arrows in the display to stop
blinking and the vehicle to reach its final po­
s it ion.
Lowering the vehicle
.. To lower the vehicle, se lect the following in
the MMI : ICAR ! f u nct ion button>
Lower con ­
trol button.
.. Wait for the arrows in the display to stop
blinking and the veh icle to lower comp lete­
ly .
Q) Note
- Remember that your vehicle is not suita­
ble for dr iv ing offroad even when it is
raised. There is not enough ground clear­
ance .
- If the vehicle is raised, it will lower auto­
matically when driving 62 mph (100 km/
h) or faster.
Driver messages
Air suspension : vehicle currently too low .
Level control running
Air suspension : vehicle currently too high.
Level control running
T he driver message switches off when the lev­
el control process is complete.