2008 AUDI S8 wheel

___ O_ n_t_ h_ e_ ro_ a_d __________________________________________________ _
On the road
Steering
Adjusting steering wheel position
The steering wheel position can be adjusted for height
and reach .
First, adjust t he driver's seat correctly.
Height adjustment
Fig . 14 3 Sw itch fo r
s te erin g whe el a dju st­
me nt
-P u sh the sw itch @ up or down :=> fig. 143 . The steering
wheel height changes fo r as l ong as you press the sw itch.
Rea ch adjustment
Push the switch @forward o r bac kward => fig. 143 . The
steering wheel reach changes for as long as you press
the switch.
There must be at least 10 inches (25 cm) between your chest and the
center of the steer ing wheel. If you cannot sit more than 10 inches
(25 cm) from the steering wheel, see if adaptive equipment is avail- able to help you reach the pedals and increase the distance from the
steering wheel.
For detailed in formation on how to adjust the driver's seat, see
=> page 87 .
The steering wheel can be adjusted even when the ig nition is turned
Of f. For vehicles w ith seat memory, the individual positions for the
steering wheel can be stored a long with the seat position.
& WARNING
Improper u se of steering wheel adju stment and improper seating
po sition can cause se rious per sonal inju ry .
• Adjust the steering wheel column only when the vehicle is not
mo ving to prevent los s of vehi cle control.
• Adjust the driver' s seat or steering wheel so that there is a
minimum of 10 in ches (25 cm ) bet ween your chest and the
s teering wheel
=> pag e 200 , fig. 216 . If you cannot maintain this
minimum di sta nce , the ai rbag sy stem can not prote ct you prop ­
erly .
• If physical limitations prevent you from s itting 10 inche s (25
cm ) or more from the steering wheel , check with your authori zed
Audi dealer to see if adapti ve equipment i s available .
• If the steering whee l is aligned with your face, the supple­
mental drive r's airbag cannot provide as mu ch pr otection
in an
ac cident. Alway s make sure that the steerin g wheel i s aligned with
your che st .
• Alway s hold the steering wheel with your hand s at the 9 o'clock
and 3 o'clo ck posit ion s to reduce the ri sk of pers ona l injury if the
driv er's airbag deploys.
• Never hold the ste ering wheel at th e 12 o' clo ck position or with
your hand s inside the steerin g wheel rim or on the steering wheel
hub . Holding the steering wheel the wrong wa y can cau se ser ious ..,,

___________________________________________________ O_ n_ t_h _e_ r_o _a_ d _ ___.111111
fl::. WARN ING (c o ntinue d)
injurie s to the hands, arm s and head if the driv er's a irbag
deplo ys.•
Easy entry feature
The easy entry feature makes it easier to enter and exit the
vehicle by automatically adjusting the steering wheel.
Press the button @ ::::> page 128, fig . 143 to turn the easy
entry feature on or off.
When the easy entry feature is tu rned on (bu tton depressed), the
steering wheel moves up to the parked position when the ignition is
turned off. After you en ter the vehicle, the steer ing wheel moves to
the stored position as soon as you turn on the ignition. •
Ignition lock and ignition switch
Ignition key positions
The engine can be started or turned off with the ignition
key.
Contro ls a nd eq uip­
ment
F ig . 14 4 Ignit ion
sw itch po sitio ns
P os it ion @
The ignition key can be inserted into the ignition switch in this posi ­
tion. This automatically unlocks the steering column lock. When the ignition key is removed, the stee ring co lumn lock is automatically
locked
=> fl::. .
Ignition on G)
Turn the ignition key to this position and re lease it.
Starting the engin e @
The engine starts with the key in this position . Major electrical loads
are tempo rar ily turned off.
Ign ition off G)
Turn the ignition key to this position and re lease it .
& WARNING
• Never remo ve the key from th e ign ition lock while the ve h icle i s
mo ving . The stee ring wheel will lo ck, c au sing loss of control.
• If you have to leave your veh icle, even for ju st a minute , al ways
remove the ignition key and take it with you. Thi s is esp eciall y
important if you are going to lea ve ch ildren unatten ded in the
vehi cle . The ch ildren co uld start the eng ine or u se other vehicle
c ontrol s. Un super vis ed u se of veh icle control s (for e xam ple , po wer
windows ) can cause seriou s personal inj uries .
0 Note
• I f the~ symbo l in the display blinks, there is a malfunction in the
e lectron ic steering column lock. Fo llow the instructions in
=> page 33 , "Steering malfunction i".
• If the .Pc symbol in the display b links, there is a malfunct ion in
the electronic ignition lock. Follow the instructions
in => page 33,
"Ignition lock malfunct ion .Pe" . ..
Vehicle care I I irechnical data

On the road -----------------
& W AR NIN G (c ontinu ed )
re qu ir e d to ste er or br ake the vehicle . If you are n ot prep ared , this
c ould r esult in a colli sion and serious per sonal injur y.
• For y our safet y, move the sele cto r lever to the P po sition , then
turn off the engine. Oth erw ise the vehi cle could inad vertently roll
away.
• After tu rning off the engin e, the r adi ato r fa n ca n co me on and
ru n for up to 10 minute s
-even if the ignition is sw itched off . Like­
wise , the fan could com e on if the temper ature in the engine
c omp artm ent r ais e s du e to he at build up or if you le ave the vehicle
s tanding in direc t sunligh t.
0 Note
After driving at high engine load, heat can bu ild up in the engine
compartment after you have turned off the engine. This can damage
t he engine . Let the veh icle stand and run in id le for about 2 minutes
before turning off the engine .•
Applies to vehicles: with Advanced Key
Driver's messages in the instrument cluster
Messages appear in the instrument cluster to let the
driver know if something is missing or if some thing must
be done.
No ke y identified
This message appears when you press the [ START ] button, but
t here is no remote control key insi de the vehicle or i f the system
does not recognize the key . For example, if your key is
shielded by
an object or
encased, i.e . ins ide an a lum in um br iefcase, the sig nal
from the key cannot be detected. E lectronic devices such as cell
phones can also interfere with t he rad io signa l.
Controls and equip­
ment P
re ss bra ke pedal to start engine
This message appears when you press the [ S TART] button when
starting the engine but you have not depressed the brake pedal.
En gage N or P to start engine
This message appears when you start the engine but the selector
lever is not in t he P or
N pos ition. The e ng ine can be started o nly if
the selector lever is in one of these two positions .
-.?. Key not in vehicle
This message appears together with the -:?e symbol when the
remote con trol key is removed from t he ve hicle whi le the engine is
running . This is to remind you that you should not continue your trip
without you r key .
I f the key is no longer inside the veh ic le when you turn o ff the
engine, you will not be able to switch on the ignition or restart the
eng ine. Also, you w ill not be ab le to loc k the veh icle from the
outside.
S hift t o P, other wise vehi cle ca n roll away. Doors d o not lo ck if le ver
i s not in P.
This message appears for your safety together wit h an aud ib le
warning signa l when you press the [S TO P] button but the selector
lever is not in the P posit ion and you open the driver's door. Move
the selector lever into P, otherwise the vehic le could rol l away. In
addit ion, you will not be able to lock the vehicle with either the lock
button located on the door handle or the remote control.
To engag e steering lo ck, pre ss a nd hold S TOP button
This message appears for your personal safety if you switch off the
engine and the ignition by pressing the [ S TOP ] button and then
open the driver's door. In this case, the steering will sti ll not be
locked. The stee ring wheel wi ll lock :
• If you press the [ STOP] button for longer than 1 second.
• If you lock the vehicle fr om the outside .•

On the road -----------------
Parking
To prevent a parked vehicle from rolling away, there are a
few things you should do.
When you park your vehicle, do the following
- Stop the vehicle using the brake pedal.
- Pull the switch to apply the electromechanical parking
brake.
- Move the selector lever into the
P position => &.
- Switch off the engine and remove the ignition key from
the ignition lock.
When you park your vehicle on hills, do the
following
- Stop the vehicle using the brake pedal.
- Pull the switch to apply the electromechanical parking
brake.
- If you are parking headed
downhill, turn the front wheels
toward the curb.
- If you are parking headed
uphill, turn the front wheels
awayfrom the curb.
- Move the selector lever into the
P position.
- Switch off the engine and remove the ignition key from
the ignition lock.
& WARNING
This is how you can reduce the risk of injury when leaving your
vehicle.
Controls and equip­ ment
&, WARNING (continued)
• Never park the vehicle where it can come in contact with dry
grass, spilled fuel or any other flammable materials.
• When parking on hills, always turn the wheels so that the front
wheels will first roll into the curb, if the vehicle should start to roll.
• Never allow anyone -especially small children -to remain
in the
vehicle when it is locked. Locked doors make it more difficult for
rescuers to access the passenger compartment in the event of an
emergency. Danger to life!
• Never leave children unsupervised in the vehicle. Children
could release the parking brake or move the gearshift lever out of
gear. The vehicle could start to roll away and cause an accident.
• No matter what the season is, the temperature in a parked
vehicle can reach dangerous levels.
0 Note
• Please exercise care when you park your vehicle in parking areas
with parking barriers or curbs . Parking barriers and curbs vary in
height and could damage your bumper and related components as
the front of your vehicle moves over a barrier or curb that is too high, as you park or as you back out of a parking spot. In order to be
sure that no such damage can occur, you may wish to stop short of
having the front tires of your car touch the parking barrier or curb.
• Please also exercise exceptional care when you drive up or down
steep ramps or drive over curbs or other obstacles, for which the
vehicle is not designed , because components of the vehicle close to
the ground, such as bumper covers, spoilers and suspension and
exhaust system components, may become damaged. •

___ o_ n_ t_
h _e _ ro_ a_d __________________________________________________ _
Starting off with a trailer To prevent rolling back unintentionally on an incline, do
the following:
- Keep the switch pulled and depress the accelerator. The
parking brake stays applied and prevents the vehicle
from rolling backward.
- You can release the switch once you are sure that you are
developing enough forward momentum at the wheels as
you depress the accelerator.
Depending on the weight of the rig (vehicle and trailer) and the
severity of the incline, you may roll backwards as you start. You can
prevent rolling backwards by holding the parking brake switch
pulled out and accelerating -just as you would when starting on a
hill with a conventional hand brake. •
Emergency braking
In the event that the conventional brake system fails or
locks.
- Pull the switch and continue to pull it to slow your vehicle
with the parking brake in an emergency.
- As soon as you release the switch or accelerate, the
braking process stops.
If you pull the switch and hold it above a speed of about 5 mph (8
km/h), the emergency braking function is initiated . The vehicle is
braked at all four wheels by activating the hydraulic brake system.
Brake performance is similar to making an emergency
stop~ &.
So that emergency braking is not activated by mistake, an audible
warning tone (buzzer) sounds when the switch is pulled . As soon as the switch is released
, or the accelerator pedal is depressed, emer­
gency braking stops.
& WARNING
Emergency braking should only be used in an emergency, when
the normal foot brake has failed or the brake pedal is obstructed .
Using the parking brake to perform emergency braking will slow
your vehicle as if you had made a full brake application. The laws
of physics cannot be suspended even with ESP and its associated
components (ABS, ASR, EDS). In corners and when road or
weather conditions are bad, a full brake application can cause the
vehicle to skid or the rear end to break away -risking an
accident. •
Driver messages in the instrument cluster
Caution: Vehicle parked too steep
This message appears when the parking brake is applied on an
incline that exceeds about 30%.
In this case the braking power of the parking brake may
not be
adequate
to prevent the vehicle from rolling unintentionally.
Please release parking brake
This message appears, when a gear is selected and the accel erator
pedal is depressed -release the parking brake.
Press brake pedal to release parking brake
This driver message appears when the switch to release the parking
brake was pressed. The parking brake can only be released if you
press the brake or accelerator pedal and press the switch at the
same time .
~ Parking brake malfunction !
This driver message appears together with the yellow 'Jlf symbol
when there is a parking brake malfunction.
~

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.:.: i:..: v :..: e::......: C::.:..: ru=.:.: is::.:e::.....: C::.::: o:..:.n.:..: t:.: r..: o :.: l:...__J9I
Adaptive Cruise Control
Speed and distance control system
Applies to vehicles : with Adaptive C ruise Cont rol
Description
The Adaptive Cruise Control driver assistance program is
a combined speed and distance control system .
Fig. 151 Front
bumper: Position of
radar sensor
Any speed between about 20 mph (30 km/h) and about 95 mph (150
km/h) can be set and held with the Adaptive Cruise Control. The
system also helps keep a distance you previously selected to vehi ­
cles ahead of you.
Adaptive Cruise Control can help reduce driving stress and fatigue
by maintaining a preset speed with automatic braking and acce ler ­
ation. Driving can be more relaxed, particularly on long trips on
interstates or on other highways that are genera lly straight.
How does it work?
A lever on the steering wheel column operates the Adaptive Cruise
Control)=> page 141, "How is the speed stored?" and=> page 143,
"How is distance set?".
Contro ls a nd eq uip­
ment
Driver information
Important information is brought up in the speedometer and in the
instrument cluster display as the vehicle is being driven
=> page 144, "Driver information".
What is important for you to know
There are limits to what Adaptive Cruise Control can do as the
vehicle is being
driven => page 149, "Special driving situations" .
LJ}. WARNING
Improper use of the Adaptive Cruise Control can cause collisions,
other accidents and serious personal injury.
• Never drive at speeds that are too high for traffic, road and
weather conditions.
• Never follow the vehicle in front so closely that you cannot stop
your vehicle safely. The Adaptive Cruise Control cannot brake the
vehicle safely when you follow another vehicle too closely. Always
remember that the Adaptive Cruise Control has a braking power
that is only about 25% of the vehicle's maximum braking ability,
the automatic braking function cannot bring the vehicle to a stop.
• Never use Adaptive Cruise Control on roads where you cannot
drive safely at a steady speed, including city or stop-and -go or
heavy traffic, on winding roads or when road conditions are poor
(for example , on ice, gravel , in fog , heavy rain or on wet roads that
increase the risk of hydroplaning).
• Always turn off Adaptive Cruise Control when entering turn
lanes , highway exit lanes and construction zones or similar situa­
tions because the vehicle will automatically accelerate to the
stored speed
• Never rest your foot on the accelerator pedal, especially when
the Adaptive Cruise Control is being used because doing so will
override the braking function and prevent the brakes from being _.,
Vehicle care I I irechnical data

___ A_ d_a_ p
:.,_ t_iv _ e_ C_r_ u _ i_ s _e _ C_ o
_ n_ t_ r_ o _ l _____________________________________________ _
Applies to veh ic les: with Ad apt ive Cruise Co ntro l
Vehicles offset to one side
Fig . 165 Motor cycle
traveling ahead
outside the detection
range of the radar
sensor
Vehicles traveling ahead and to one side cannot be detected by the
radar sensor until they are within the detection range of the sensor .
This applies in particular to narrow vehicles, such as motorcycles .
Narrow vehicles which are not in the radar sensor's detection range
cannot be identified . •
App lies to ve hicles: w ith Ad apt ive Cruise Contro l
Lane changes by other vehicles
D
Fig. 166 A vehicle
changes lanes
Vehicles which move into your lane a short distance ahead cannot
be identified by the radar sensor until they are in the sensor's detec ­
tion range. •
Applies to veh ic les: with Adaptive Cru ise Contro l
Vehicles that are difficult to detect
Fig. 167 Two-wheeled
vehicle driving ahead
Vehicles that are difficult to detect, e.g. two -wheeled vehicles
ahead, vehicles with high ground clearance, protruding load, are
frequently detected late or not at all, under some circumstances. •

Audi lane assist -_____________________ __.
Audi lane assist
Lane assist
Applies to vehicles: with lane assist
Description
Lane assist helps you keep your vehicle in your lane.
Lane assist uses a camera to detect lane boundary lines. If the
system detects that your vehicle is about to leave a lane boundary
line, the steering wheel
vibrates to alert the driver. If lane assist
detects boundary lines on both sides of the vehicle's lane, the
system enters active standby mode, which is indicated by the green
indicator light/: on the instrument cluster.
If the system is in active standby mode and the turn signal is acti­
vated before driving over the boundary line, the warning does not
occur since the system allows for intentional lane changes.
The system is designed for driving on freeways and expanded high­
ways and thus works only at speeds of 40 mph (65 km/h) or more.
& WARNING
• Lane assist will not keep your vehicle in your lane. The system
only warns the driver when the vehicle is leaving the lane. The
driver is always responsible for keeping the vehicle in the lane.
• The camera is not able to detect all lane boundary lines and in
some cases might also detect lane structures or objects as
boundary lines. This can lead to incorrect warnings or warnings
that fail to go off at all.
• The camera's visibility can be impaired by vehicles ahead of
you, for instance, or by rain, snow, heavy spray or light shining into
the camera lens. This can cause lane assist to fail to detect
boundary lines. •
Contro ls a nd eq uip­
ment
Applies to vehicles: with lane assist
Activating and deactivating
Fig. 168 Turn signal
lever : Lane assist
button
Fig . 169 Windshield:
Lane assist camera
viewing window
Press the:::> fig. 168 button to activate or deactivate the
system.
The/: indicator light on the instrument cluster
will illuminate or go out.
Instrument cluster indicator light
/: Ready : The green indicator light shows that the system is ready
to use. A warning alerts the driver when the vehicle drives over
detected lane boundary lines.
.,.
Vehicle care I I irechnical data