2008 AUDI S8 Owners Manual

Warm and cold -
----------------
the outside air drops, fresh air is supplied to the vehicle interior
again .
In the event that the windows fog up during automatic air recircula­
tion, you must press
the® button immediately.
Under certa in operat ing cond it ions, automatic a ir rec ircu lation is
switched off automatically . With outside temperatures below about
-8 °C and in the ECON mode, automatic air rec ircula tion is limited to
15 seconds. •
Synchronization
One climate control setting for all seats.
With synchronization active, the driver's or the passenger's settings
are adopted for the other seats . Al l the other set tings that were
made are transferred to the other seats. This includes all the c limate
control settings right down to the heated seats .
If
a d ifferent setting is selected at a "synchron ized seat", synchroni ­
zation is cancelled.
•
Center air vent
The temperature of the air leaving the center vents can be
changed to differ from the temperature setting.
Controls and equip­ ment
Fig. 14 2 MMI di spla y:
Ce nter a ir ve nt
The air flow coming from the center vents can be adjusted to be
colder or warmer t han the selected set temperatu re.
In this way you have the opportunity to have the a ir flow from the
center vents a litt le warmer or coo ler, depending on the time of year .
A litt le cooler in the summer and a little warmer in the winter. •
Applies to vehic les : with rear air condition in g
Rear seat operation
The rear climate con trols can be o perated fr om the
driver's area.
With active rear seat operation, the driver or the passenger can
operate the rear climate control system from
his/her contro ls. •
Ap plies to vehicles : w ith so lar roof
Solar operation
Depending on the solar irradiation in the vehicle, the fan
will run using solar power to keep fresh air circulating
inside the vehicle, even af ter you switch off the ignition.
- Switch the solar operation to on .
After you switch off the ignition, the fan is operated using solar
power from the solar roof. Make sure outlets
G) and © are open for
maximum
ventilation => page 722, fig. 137.
The vent ilation works on ly if t he sunroof is closed or t ilted up.
If you turn off the engine whi le the air rec irculation is on, the air
conditioning automatically switches to fresh air mode.
Solar operation is not activated at low outside temperatures .•

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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

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[ i J Tips
• If you release the ignition key in positions G) ,@ or G) , the key
automatically returns to pos ition @.
• If you open the driver 's door when the ignition is switched on , a
buzzer sounds and the message
Ignition is on appears in the instru ­
ment cluster display. Please switch the ignition off .•
Ignition key safety lock
The igni tio n key can only be re move d when the selector
lever is in the
"P" (P ark) posi tion.
After turning off the ignition , the igni tion key can only be removed
from the ignition lock when the selec tor lever is in the
"P" (Park)
position . Af ter you have removed the key , the selector lever is locked
and cannot be moved .•
Starting and stopping the engine
Starting the engine
The engine ca n only be st arted with y our or iginal A udi
key.
Fig . 14 5 Ignit ion key
po sitions
-St ep o n the brake.
- Move t he selector lever into P or
N => &, .
-Turn the ign ition key to position 0 => fig . 14 5 -do not
depress the gas pedal when start ing t he engine .
A cold engine may sound loud after it has be en started. This is due
to the hydrau lic valves building up oil pressure. This is normal and
is not a n eed fo r concern .
I f the engine does not start immediately, stop trying after 10
seconds and then try to restart the engine about 30 seconds later .
& WARNING
Never start or let the engine run in a confined or en clo sed are a.
Exhaust fumes from the engine contain carbon monoxide, a color ­
less and odorle ss gas . Carbon mono xide can be fatal if inhaled.
• Never leave the engine idling unattended. An unattended
vehicle with a running engine po ses a dange r of person al injury or
theft.
0 Note
• Avo id high e ngine speeds, fast accelerati on or heavy eng ine
loads while the engine is still cold. This could damage the engine.
• The eng ine ca nnot be s tarted by push ing or towi ng the ve hicle.
To avoid unnecessary engine wear and to reduce exhaust emis ­
sions, do not let your vehic le stand and warm up. Be ready to drive
off im mediately afte r starting your vehicle . Maintain modera te
speed until the engine is completely warm . Remember , the engine
performs best at operating temperature. •

On the road -
-----------------'
Stopping the engine
-Turn the ignition key to position®~ page 130, fig. 145.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running. With the ignition turned off, you have to apply more
force when steering or braking. Since you cannot steer and stop normally, this can lead to accidents and serious injuries .
• The radiator fan can continue to run for up to 10 minutes even
after you have turned off the engine and removed the ignition key.
The radiator fan can also turn on again if the engine coolant heats
up because of intense sunlight or heat build-up in the engine
compartment.
0 Note
Do not stop the engine immediately after hard or extended driving.
Keep the engine running for approximately two minutes to prevent
excessive heat build-up.•
Contro ls a nd eq uip­
ment
Starting and stopping the engine
using the Advanced Key
A pp lies to veh ic les: with Advanced Key
Starting the engine using the [ START] button
Using this button, you can switch on the ignition and start
the engine.
0
0
Fig . 146 Advanced
Key: START button
The [ START] button has a two position feature. ~ fig. 146.
Switching on the ignition
-Press the [START] button to the first position. Only the
ig nition switches on .
Starting the engine
-Depress the foot brake.
- Move the selector lever into the P or N position
~ &.
- Press the [ START] button to the second position. The
engine starts.
Vehicle care I I irechnical data

-
On the roa d
----------------
When starting a cold engine, the engine may be a bi t noisy for a
shor t w hile. This is because the hydraulic valves are working to
bring up the oil pressure . This is norma l and no cause for concern .
If the engine does not start immediately, stop cranking the engine
after 10 seconds . Wa it 30 seconds, t hen try to restart the eng ine.
& WARNING
Ne ver sta rt the engine in an en clo sed area su ch a s in your garage
with the garage door clo sed . The exhau st fumes are poi sonous!
0 Note
• Avoid high engine speeds, full gas or heavy engine loads if the
eng ine has not warmed up to its operating temperature . You cou ld
damage the engine.
• Do not try to start the engine by pu lling or pushing .
~ For the sake of the environment
Do not let your veh ic le stand and warm up . Be ready to drive off
right away. T his way, you prevent unnecessary exhaust emissions.
[ i ] Tip s
If you open th e driver 's door when the ignition is switched on , a
buzzer sounds and the message
Ignition i s on appears in the instru ­
ment cluster display. P lease switch the ign ition off .•
A pp lies to vehicles: w it h Ad vanced Key
Stopping the engine using the [S TO P] button
0
0
- Bring t he vehicle to a complete stop.
Fi g. 14 7 Advan ced
Ke y: S TOP button
-Mov e th e s elect or in to the P or N posi tion .
- Press the [STO P]
button => fig. 14 7.
Press ing the [ STOP) butto n once sw itches o ff the engi ne and the
ignition . If you press the [STOP] button again for approximately 2
seconds, the steeri ng wi ll be locked, provided that the selector lever
is in the P position
=> & .
Em ergen cy OFF fun ction
If necessary, the engine can be switched off with the selector lever
in the R, Dor S pos it io ns. To do so, step on the foot brake and press
and ho ld the [S T O P] button (vehic le speed must be be low 6 mph/
10 km/h).
& WARNING
• Never stop the engine until the vehi cle h as c ome to a complete
stop .
• The br ake boo ster and the servotroni c onl y w ork when the
engine is running . If you turn off the engine , more force will be

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 .•

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Electromechanical parking brake
Operation
The electromechani ca l parking brake replaces the hand
brake.
F ig. 148 C enter
co nso le: P arki ng b ra ke
Pu ll the switch to app ly the parking brake==> fig. 148. The
indicator light in the sw itch will come on.
Step on t he brake pedal o r th e acce lerator pedal and
press th e switch at the s am e time to rel eas e the parking
brake . The indicator light in t he switch w ill go out .
Your vehicle is equ ipped w ith an electromechanical parking brake
which replaces the handbrake . The parking brake is designed to
prevent the vehicle from rolling unintentionally .
In addition to the norma l functions of a trad itiona l hand brake, the
e lectromechanical parking brake provides various convenience and
safety functions.
Em erg ency brake
An emergency brake ensures that the vehicle can be slowed even if
the
normal brakes fa il=> page 136, "Emergency braking".
Indi cat or light s
• If the pa rking brake is app lied with the ignition turned on , the
indicator light in the instrument cluster (U.S. models:
::i , Canadian
models: ©) and in the switch © will come on .
• If the parking brake is applied with the ignition
tu rn ed off , the
indicator light in the instrument cluster (U .S .
models :~~ . Canadian
models :(®) ) and in the
switch (®) will come on for about 30 seconds
and then go out.
& WARNING
I f the vehicle i s stati onary and the transmis sion i s engaged with
the eng ine runnin g, the engine should n ot b e speeded up (e .g .
manu ally from under the ho od). Otherw ise th e vehi cle w ill start to
mo ve
-you r un the ris k of an ac cident .
0 Note
If the warning/indicator light (U .S . models: BRAKE , Canadian models:
«D>) flashes in the instrument cluster, there is a brake system
malfunction . By pressing the
I CH ECK] button , you can bring up a
driver message which explains the malfunction in more detail. If the
message
Parking brake! Plea se conta ct w ork shop appears, there is
a parking brake malfunction which you should have repaired imme ­
diate ly by an authorized dealership =>
page 30.
[ i] Tips
• You can app ly the parking brake at any time -even with the igni ­
tion turned off . T he ignition must be turned on in order to release
the parking brake.
• Occasional noises when the parking brake is applied and
released are norma l and are not a cause for concern .
• The parking brake goes through a se lf -test cycle at regular inter ­
va ls
-when the vehicle is parked. Any associated no ises are
normal. •