2009 AUDI S8 technical data

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& WARNING
Alwa ys make sure that the volu me and frequen cy of the ch ime s is
adjusted so that y ou can ea sily he ar the a coustic di stance signal
eve n if the r adi o i s pl aying , the air -condit io ne r blo wer i s on High o r
there i s a high level of outside noi se . Check the settings when ever
s omeon e el se ha s dri ven th e vehi cle before you .•
A pp lies to vehicles: w ith Adva nce d Par kin g S ystem with rear view camera
Switching the visual display /rear-view
camera on and off
The visual display and rear-view camera are preset in the
MM!.
Con tro ls and eq uip­
ment
F ig . 2 10 MMI di splay:
Dis play A PS -su bmenu
Fig . 2 11 MMI di spl ay:
vi su al di splay o f
di sta nce to a detec te d
ob st ac le
Press the I CAR I fu nction b utton.
Selec t Systems in the
CAR menu.
Select Audi parking system .
Select Display APS
=> fig. 210 .
Select Graphic , Rear View , automati c or off.
The rear-view camera and the visual display can be used separately
or in combination for parking .
When you switch manually to the rear -view camera v ia the control
button with the
Re ar V ie w function => fig. 211, the control button
with the
Graphic function => page 180, fig. 203 appears . You can
switch back and forth between the rear-view camera and visua l
parking assist at any
time via the disp layed control button function .
The presettings in the MMI are retained .
"Graphic " setting
If you have set the Graphi c function, the visual display will be
displayed in the MMI display by defau lt upon activation of the
parking assis t system => fig . 211 .
"Rear Vi evv " s ett ing
If you have set the R ear View function , the picture from the rear­
v iew camera =>
page 178, fig. 20 1 will be displayed when driving
backward and forward whenever the parking assist system is acti­
vated.
" Autom atic" sett in g
If you have set the automat ic function, the picture fro m the rear­
view camera will automatically be displayed when reverse gear is engaged and the visual disp lay will be displayed on the MM I display
when you drive forward . .,.
Vehicle care I I Technical data

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Important things to do before driving
Safety is everybody's job! Vehicle and occupant safety
always depends on the informed and careful driver.
For your safety and the safety of your passengers, before
driving always:
-Make sure that all lights and signals are operat ing
correctly.
- Make sure that the tire pressure is correct.
- Make sure that all windows are clean and afford good
visibility to the outside.
- Secure all luggage and other items carefully~
page 109.
-Make sure that noth ing can interfere w ith the pedals.
- Adjust front seat, head restraint and mirrors correctly for your height .
- Instruct passengers to adjust the head restraints
according to their height.
- Make sure to use the right ch ild restraint correctly to
protect children ~
page 245, "Child Safety ".
- Sit properly in your seat and make sure that your passen ­
gers do the same~
page 86, "General recommenda ­
tions".
- Fasten your safety belt and wear it p roperly. Also instruct
your passengers to fasten the ir safety belts properly
~ page 217. •
Controls and equip­
ment Safety first
Vehicle operation
What impairs driving safety?
Safe driving is directly related to the condition of the
vehicle, the driver as well as the driver's ability to concen­
trate on the road without being distracted.
The driver is responsible for the safety of the vehicle and all
of its occupants. If your ability to drive is impaired, safety
risks for everybody in the vehicle increase and you also
become a hazard to everyone else on the road ~& .There ­
fore:
Do not let yourself be distracted by passengers or by
using a cellular telephone .
NEVER drive when your driving ability is impaired (by
medications, alcohol, drugs, etc.).
- Observe all traffic laws, rules of the road and speed limits
and plain common sense .
- ALWAYS adjust your speed to road, traffic and weather
conditions.
- Take frequent breaks on long trips. Do not drive for more
than two hours at a stretch.
- Do NOT drive when you are tired, under pressure or when
you are stressed .
& WARNING
Impaired driving safety increases the risk of serious personal
injury and death whenever a vehicle is being used. •
Vehicle care Do-it-yourself service Technical data

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& WARNING (continued)
• Always adjust the driver's seat and the steering wheel so that
there are at least 4 inches (10 cm) between the knees and the
lower part of the instrument panel.
• Always hold the steering wheel on the outside of the steering
wheel rim with your hands at the 9 o'clock and 3 o'clock positions
to help reduce the risk of personal injury if the driver's airbag inflates .
• Never hold the steering wheel at the 12 o'clock position or with
your hands at other positions inside the steering wheel rim or on
the steering wheel hub. Holding the steering wheel the wrong way
can cause serious injuries to the hands, arms and head if the
driver's airbag inflates
• Pointing the steering wheel toward your face decreases the
ability of the supplemental driver's airbag to protect you in a colli­
sion .
• Always sit in an upright position and never lean against or
place any part of your body too close to the area where the airbags
are located.
• Before driving, always adjust the front seats and head
restraints properly and make sure that all passengers are properly
restrained .
• Never adjust the seats while the vehicle is moving. Your seat
may move unexpectedly and you could lose control of the vehicle.
• Never drive with the backrest reclined or tilted far back! The
farther the backrests are tilted back, the greater the risk of injury due to incorrect positioning of the safety belt and improper
seating position.
• Children must always ride in child seats
=> page 245. Special
precautions apply when installing a child seat on the front
passenger seat
=> page 220. •
Controls and equip­
ment Safety first
Vehicle operation
Proper seating position for the front
passenger
The proper front passenger seating position is important
for safe, relaxed driving.
For your own safety and to reduce the ris k of injury in the
event of an accident, we recommend that you adjust the
seat for the front passenger to the following pos ition:
- Move the front passenger seat back as far as possible.
There must be a minimum of 10 inches (25 cm) between
the breastbone and the instrument panel =>
&.
- Adjust the angle of the seatback so that it is in an upright
position and your back comes in full contact with it
whenever the vehicle is moving.
- Adjust the head restraint so that the upper edge is as
even with the top of your head as possible but not lower
than eye level and so that it is as close to the back of your
head as possible =>
page 205.
-Keep both feet flat on the floor in front of the front
passenger seat.
- Fasten and wear safety belts correctly=:>
page 215.
For detailed information on how to adjust the front passenger's
seat, see => page 86.
& WARNING
Front seat passengers who are unbelted, out of position or too
close to the airbag can be seriously injured or killed by the airbag
as it unfolds. To help reduce the risk of serious personal injury : .,
Vehicle care Do-it-yourself service Technical data

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Proper adjustment of head restraints
Correctly adjusted head restraints are an important part
of your vehicle's occupant restraint system and can help
to reduce the risk of injuries in accident situations.
Fig. 220 Correctly
adjusted head restraint
viewed from the side
The head restraints must be correctly adjusted to achieve
the best protection.
-Adjust the head restraint so that the upper edge of the
restraint is level with the top of your head, but no lower
than eye level and so it is as close to the back of your
head as possible ~ fig. 220.
Adjusting head restraints=> page 91.
& WARNING
Driving without head restraints or with improperly adjusted head
restraints increases the risk of serious injuries in a collision . To
help reduce the risk of injury :
• Always drive with the head restraints in place and properly
adjusted.
• Every person in the vehicle must have a properly adjusted head
restraint.
Controls and equip­ ment Safety first Vehicle operation
& WARNING (continued)
•
Always make sure each person in the vehicle properly adjusts
their head restraint. Each head restraint must be adjusted
according to occupants' size so that the upper edge is as even
with the top of the person's head, but no lower than eye level and
so it is as close to the back of to the head as possible .
• Never attempt to adjust head restraint while driving. If you
have driven off and must adjust the driver headrest for any reason,
first stop the vehicle safely before attempting to adjust the head
restraint.
• Children must always be properly restrained in a child restraint
that is appropriate for their age and size
=> page 245. •
Examples of improper seating positions
The occupant restraint system can only reduce the risk of
injury if vehicle occupants ore properly seated.
Improper seating positions can cause serious injury or
death . Safety belts can only work when they are properly
positioned on the body. Improper seating positions reduce
the effectiveness of safety belts and will even increase the
risk of injury and death by moving the safety belt to critical
areas of the body. Improper seating positions also increase
the risk of serious injury and death when an airbag deploys
and strikes an occupant who is not in the proper seating
position. A driver is responsible for the safety of all vehicle
occupants and especially for children. Therefore:
- Never allow anyone to assume an incorrect seating posi­
tion when the vehicle is being used~& .
The following bulletins list only some sample positions that will
increase the risk of serious injury and death. Our hope is that these .,_
Vehicle care Do-it-yourself service Technical data

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& WARNING
Pedals that cannot move freely can cause loss of vehicle control
and increase the risk of serious injury.
• Never place any objects in the driver's footwell . An object could
get into the pedal area and interfere with pedal function. In case
of sudden braking or an accident, you would not be able to brake
or accelerate!
• Always make sure that nothing can fall or move into the
driver's footwell. •
Floor mats on the driver side
Always use floor mats that can be securely attached to
the floor mat fasteners and do not interfere with the free
movement of the pedals.
- Make sure that the floor mats are properly secured and
cannot move and interfere with the pedals =>& .
Use only floor mats that leave the pedal area unobstructed and that
are firmly secured so that they cannot slip out of position . You can
obtain suitable floor mats from your authorized Audi Dealer.
Floor mat fasteners are installed in your Audi.
Floor mats used in your vehicle must be attached to these fasteners .
Properly securing the floor mats will prevent them from sliding into
positions that could interfere with the pedals or impair safe opera­
tion of your vehicle in other ways.
& WARNING
Pedals that cannot move freely can result in a loss of vehicle
control and increase the risk of serious personal injury.
• Always make sure that floor mats are properly secured.
Controls and equip­ ment Safety first Vehicle operation
& WARNING
(continued)
• Never place or install floor mats or other floor coverings in the
vehicle that cannot be properly secured in place to prevent them
from slipping and interfering with the pedals or the ability to
control the vehicle.
• Never place or install floor mats or other floor coverings on top
of already installed floor mats. Additional floor mats and other
coverings will reduce the size of the pedal area and interfere with
the pedals.
• Always properly reinstall and secure floor mats that have been
taken out for cleaning.
• Always make sure that objects cannot fall into the driver foot­
well while the vehicle is moving. Objects can become trapped
under the brake pedal and accelerator pedal causing a loss of
vehicle control. •
Stowing luggage
Loading the luggage compartment
All luggage and other objects must be properly stowed
and secured in the luggage compartment.
Loose items in the luggage compartment can shift
suddenly, changing vehicle handling characteristics. Loose
items can also increase the risk of serious personal injury in
a sudden vehicle maneuver or in a collision.
- Distribute the load evenly in the luggage compartment.
- Always place and properly secure heavy items in the
luggage compartment as far forward as possible.
- Secure luggage using the tie-downs provided
=>
page 100, "Luggage compartment ".
Vehicle care Do-it-yourself service Technical data

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Tie-downs
The lugg age compa rtme nt is eq uippe d with f our tie ­
downs to secure luggage and othe r items .
Use the tie -downs to secure your cargo properly~ page 207,
"Loadi ng the luggage compartme nt".
I n a col lision, the laws of physics mean that even smaller items that
are l oos e in the veh ic le will become heavy missiles t hat can cause
serious injury. Items in the vehicle possess energy wh ich vary with
vehicle speed and the we ight of the item . Veh ic le spee d is the m ost
significant factor.
F or example, in a frontal co llision at a speed of 30 mph ( 48 km/h),
th e for ces act ing on a 10 -lb (4 .5 kg) o bject are about 20 tim es t he
normal weight of the item. This means that the weight of the item
w ould s udde nly be a bout 2 00 lb s. (90 kg). Yo u ca n imagi ne th e inju ­
ries that a 200 lbs. (90 k g) item flying free ly throu gh the pass enger
c o mp art ment co uld cause in a co llision lik e this.
& WARNING
Weak , damaged or improper straps used to secure items to tie ­
downs can fa il during hard braking or in a collision and cause
serious personal injury.
• Always use suitable mounting straps and properly secure
items to the tie -down s in the luggage compartment to help
prevent items from shifting or flying forward as dangerous
missiles .•
Reporting Safety Defects
Applicable to U.S.A.
If you believe that your vehicle has a defect
which could cause a crash or could cause
Controls and equip­ ment Safety first Vehicle operation
injury or death
, you should immediately inform
the National Highway Traffic Safety Adminis ­
tration (NHTSA) in addition to notifying Audi of
America , Inc.
If NHTSA receive s similar complaints , it may
open an investigation, and if it finds that a
safety defects exists in a group of vehicles , it
may order a recall and remedy campaign.
However , NHTSA cannot become involved in
individual problems between you, your dealer,
or Audi of America, Inc.
To contact NHTSA , you may call the Vehicle
Safety Hotline toll -free at:
Tel.: 1-888 -327-4236 (TTY: 1-800-424-9153)
or write to:
Admini strator
NHTSA 1200 New Jersey Avenue, SE
Washington, D.C. 20590
You can also obtain other information about
motor vehicle safety from:
http:/ /www.safercar.gov
Vehicle care Do-it-yourself service Technical data

Safety belts -----------------=------
Safety belts
General notes
Always wear safety belts!
Wearing safety belts correctly saves lives!
This chapter explains why safety belts are necessary, 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.
& 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 serious 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 . Vehicles with power individual rear seats* have
seating for four: two in the front and two in the rear. Each seating
position has a safety belt.
Controls and equip­ ment Safety first
Vehicle operation
& WARNING
Not wearing safety belts or wearing them improperly increases
the risk of serious personal injury and death.
• Never strap more than one person, including 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 safety 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
buck/ i ng-u p.
Before driving off, always:
Fig. 221 Safety belt
warning light in the
instrument cluster -
enlarged
- Fasten your safety belt and make sure you are wearing it
properly.
1J,,
Vehicle care Do-it-yourself service Technical data

Because the passengers of this vehicle are not using safety belts
=:>
page 212, fig. 222, they will keep moving at the same speed the
vehicle was moving just before the crash, until something stops
them -here, the wall =:>
page 272, fig. 223.
The same principles apply to people sitting in a vehicle that is involved in a frontal collision. Even at city speeds of 20 to 30 mph
(30 to 50 km/h), the forces acting on the body can reach one ton
(2,000 lbs, or 1,000 kg) or more. At greater speeds, these forces are
even higher.
People who do not use safety belts are also not attached to their
vehicle. In a frontal collision they will also keep moving forward at
the speed their vehicle was travelling just before the crash. Of course, the laws of physics don't just apply to frontal collisions, they
determine what happens in all kinds of accidents and collisions. •
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop themselves
from flying forward and being injured or killed. Always
wear your safety belts!
Safety first
Fig . 224 A driver not
wearing a safety belt is
violently thrown
forward
Safety belts
Fig . 225 A rear
passenger not wearing
a safety belt will fly
forward and strike the
driver
Unbelted occupants are not able to resist the tremendous forces of
impact by holding tight or bracing themselves. Without the benefit
of safety restraint systems, the unrestrained occupant will slam
violently into the steering wheel, instrument panel, windshield, or
whatever else is in the way=:> fig. 224. This impact with the vehicle
interior has all the energy they had just before the crash.
Never rely on airbags alone for protection. Even when they deploy,
airbags provide only additional protection. Airbags are not
supposed to deploy in all kinds of accidents. Although your Audi is
equipped with airbags, all vehicle occupants, including the driver,
must wear safety belts correctly in order to minimize the risk of
severe injury or death in a crash.
Remember too, that airbags will deploy only once and that your
safety belts are always there to offer protection in those accidents
in which airbags are not supposed to deploy or when they have
already deployed. Unbelted occupants can also be thrown out of the
vehicle where even more severe or fatal injuries can occur.
It is also important for the rear passengers to wear safety belts
correctly . Unbelted passengers in the rear seats endanger not only
themselves but also the driver and other passengers=:> fig. 225. In a
frontal collision they will be thrown forward violently, where they can hit and injure the driver and/or front seat passenger. •
Vehicle care I I Technical data