AUDI S8 2008 Owners Manual

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Ap plies to vehicles : w ith heated rear seats
Heated rear seats
The seat cushions and seat backs of the two outer rear
seats can be heated electrically.
Fig . 133 C ente r
co nso le rea r: H ea ted
seats
- Rotate the thumb wheel © to turn on and adjust the
heating for the left rear seat.
- Rotate the thumb wheel
® to turn on and adjust the
heating for the right rear seat .
With the thumb wheel in the O position, heating for the seats is
turned off . The range of adjustment is from 1 to 6 .
Th e rear sea t hea ting operat es on ly wh en th e seats ar e occupied. If
there is no one s itting in the rear , you should swi tch off the seat
hea ting .
0 Not e
To avoid damage to the heating elements in the seats , do not kneel
on the seats or place heavy loads on a small area of the seat .•
Contro ls a nd eq uip­
ment
Ap plies to vehi cles: with steer in g w heel heatin g
Steering wheel heating (j)
The steering wheel can be heated electrically.
F ig . 1 34 M ultifun cti on
st eeri ng w heel: Button
for stee ring w hee l
he ating
- Press the[ ~] button to turn the steer ing wheel heat ing on
and
off ~ fig. 134. The message
Steering wheel heating on ! or
Steering wheel heating off ! appears in the i nstrument
cluster d isp lay .
When the steering whee l heating is switched on , the steering wheel
is heat ed to about 82°F (28°C) and held th ere.
The last setting se lected for the steering wheel heating (on or off) is
automatically saved when the vehicle is shut of f and is assigned to
the remote key. •
Vehicle care I I irechnical data

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Air distribution ®
The automatically controlled air distribution can be
changed manually.
F ig. 135 MM I d isp lay:
Air distribution
- Press the Distr ibution (!) button.
- Rotate the control knob to the desired
setting:::::, f ig . 135 .
You can adjust the air circulation so that air flows from specific
vents. In position
O air flows only to the windows, in position @to
t he driver or passenger and in position
-0,, to the footwell . There are
additional combinations available to adjust air distribution as needed .
To regulate air distribution automatical ly, switch to !AUTO). •
Defrosting [@]
The windshield and side windows are rapidly defrosted or
defogged.
- To turn on t he de fogger/defroster, press th e[®] b utto n
=:> page 116, fig. 129.
-Press[®] again or press [AUTO] to turn off the
defogger/defroster.
T he temperature is automatically controlled . Maximum airflow is
primarily blown in through outlets
G) and (v =:, page 122.
By pressing[@), both air recirculation and ECON are switched off.
[ i ] Tip s
When the outside temperature is low, press ing the[@ ] button turns
on the windshield defroster*
automatically =:> page 123. •
Fan ~
The automatically preset fan speed can be reduced or
increased.
Fi g. 13 6 M MI d isplay:
F an
- Press the Fan [8!?] button .
- Rot ate the climate cont rol kno b to the desired fan speed
=> fig . 136.
The climate control system automatically regulates fan speed
depending on interior temperature. You can adjust the volume of air
produced by the fan to your own requirements. •

Warm and cold Ill
----------------
Manual air circulation [~]
Air recirculation prevents exhaust fumes or other pollu­
tion from entering the vehicle.
Turning on air recirculation
-Press[~] =>page 116,fig.129 =>&
Turning off air recirculation
-Press ~ again, or
- press [AUTO], or
-
press[@].
I n the air recirculation mode, the air in the passenger compartment
is recirculated to prevent exhaust fumes and other pollution from
entering the vehicle. We recommend that you use the manua l air
recirculation under the following conditions:
• when driving through tunnels
• in a traffic jam.
& WARNING
Do not use this setting for extended periods of time . The windows
could fog up since no fresh air can enter the vehicle . If the
windows fog up, press the air recirculation button again immedi­ ately to switch off the air recirculation function or select defrost . •
Controls and equip­ ment

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~ d~ c:!:o ~l~d :._ _____________________________________________ _
Air outlets
Air distribution determines the air flow to the individual
vents .
---- P
Fig. 1 37 Ins tru me nt pa nel: a ir o utlet loca tions a nd ai rf low di rectio ns
Air outl ets G) and ©
- Turn the vertical thumbwheel beside the outlet to
increase , reduce or shut down t he airflow from that
outlet .
- To adjust the direct ion of the a irflow from the outlet,
move the tab in t he center of the outlet in the desired
direction . The direct ion of the air delivered from the
vents can be adjusted horizontally and vertically .
The air outlets are actuated either automatically or manual ly
depending on the operating mode selected. Heated or unheated
fresh air, or cooled air flows from the vents.
[ i ] Tip s
• When climate contro l is working, coo led air wi ll flow primarily
from outlets
G) and ©-To assure adequate cooling, outlets G) and
© should never be completely closed.
• The air flow coming from the vents © can be adjusted to be
colder or warmer than the selected set temperature. •
Air outlets in the rear
Outl ets in the c ente r con sol e
- Rotate the thumb wheel located next to the outlet to
open or close it.
- To adjust the direction of the airflow from the outlet,
move the tab in t he center of the outlet in the des ired
direction. The direction of the air delivered from the
vents can be adjusted horizontally and vertically .
Outl ets in th e door pillars
- Rotate the t humb wheel located next to t he out let to
open or close it.
- To adjust the d irection of the a irflow from the outlet,
move the tab in t he center of the outlet in the des ired
direction . The direction o f the air delive red from the
vents can be adjusted hor izontally and vertically .
The air outlets are actuated either automatically or manually
depending on the operating mode selected. Heated or unheated
fresh air, or cooled air flows from the vents .
The air outlets to heat the rear footwel l are located under the front
seats . _,,,

Warm and cold -
------------------------------..J
[ i J Tip s
If the climate control system is operating in cool ing mode, air flows
primarily from the outlets in the center console and in the door
pillars . To achieve adequate cooling, you should never close the
out lets completely. •
Using climate controls economically
Using the climate controls prudently can help save fuel.
When you use t he a ir conditioner, engine power is reduced
and fuel consumption increases. To save fuel, you should
use the a ir co nditioner only when necessary. Also please
note the follow ing po ints:
- If you want to save fuel, activate ECON.
If you are going to drive with the windows open, use ECON.
W For the s ake of the environm ent
By reducing the amount of fuel you use, you also reduce the amount
of pollutants emitted into the air. •
Applies to v ehicl es: with so lar slidi ng /tilt ing sunr oof
Solar blower fan /solar roof
With sufficient sunlight, the blower fan continues to
operate with solar energy to bring in fresh air after the
ignition has been switched off.
T he fan motor is operated by solar energy through the solar roof
after the igni tion is turned off. P lease make certa in that
vents ©
and© are open to achieve optimal ventilation ~ page 122, fig. 137 .
Controls a nd eq uip­
ment
The ventilation operates only with the sunroof c losed or in the tilted
position.
If the vehicle was switched off in the recirculation mode, the air
conditioning automatica lly switches to fresh air operation .
Solar operation is not activated at low outside temperatures .•
Windshield defogging/defrosting
Ap plie s to v ehic le s : with windsh ield defogg er/defr oste r
Windshield defogger /defroster ®
The win dshield defogger rem oves humidity from the
windshield.
F ig. 138 Win dsh ield
d efogger sw itc h
- Press the@ button to turn the w indshield defogger on
and
off ~ fig. 138 .
The w indshield defogger works only when the engine is running .
The indicator light in the button illuminates when the windshield defogger is turned on .
With a cold engine at outside temperatures below 41 °F (+5 °C) and in !AU TO
l operation , the windshield defogger turns on automati ­
cally . Depending on outside temperature, the windshie ld is heated .._
Vehicle care I I irechnical data

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for a maximum of 4 minutes. The temperature for the climate
control must be selected so that it is operating in the heating mode.
When selecting the program setting
®, the windshield
defogger/defroster is switched on automatically at outside temper ­
atures below 41 °F (+5
°Cl. Depend ing on outside temperature, the
windshield is heated from 2 up to a maximum of 4 minutes.
The windshield defogger is deactivated in ECON mode .
[ i J Tips
• If a crack forms in the windshield due to a foreign object (e .g . a
stone chip), the defogger/defroster is not turned on . This prevents
the crack from spreading.
• We recommend that you locate an Audi dealership immediately
to have the windshield replaced.
•
Rear window defogger QW
Fi g. 13 9 Sw itch for
r ea r wi ndow defo gger
Press t he (ffiJ switch to turn the rear w indow defogger on
and
off => fig. 139.
The rear window defogger works only when the engine is running .
The indicator light in the button illuminates when the rear window
defogger is turned on . T
he rear window defogger will switch off automatically after a short
t ime . The time the rear window defogger remains on wi ll vary
depending on the outside temperature.
At very low outside temperatures, the rear window defogger can be switched on continuously by push ing the
QiP button for more than 2
seconds. This remains stored until the ignition is switched off .
A rear window defogger that was switched on also remains stored
for 15 minutes after the ignition is switched off . If the engine is
r estarted within these 15 minutes, t he rear w indow defogger is also
activated, depending on outside temperature. With a vehic le that is
parked for a short time, the rear window defogger does not need to
be manua lly activated aga in.
W For the sake of the environment
Turn the defogger off when the rear w indow is clea r. When you save
electricity, you save fuel. •

Warm and cold -
-----------------'
Rear climate controls
Ap plies to vehic les: with rear a ir co ndition ing
Controls
This overview is to assist you in familiarizing yourself with
the air conditioning controls .
Fig . 140 Air co ndi­
t io ning contr ols
The left side of the display shows the temperature selected for the
rear passenger on the left, the right side shows the temperature
selected for the rear passenger on the right . If the air conditioning
settings are changed, this appears briefly in the corresponding area
of the display.
Functions are turned on and off by to uching the buttons . The LED in
the switch illuminates when the function is turned on .
By pressing the
sa fet y swi tc h ® in the driver's door ~ page 63 the
climate controls in the rear are deactiva ted. The message
P AS SIV E
appears in the display. In this mode the rear climate control can only
be operated by the driver through the contro ls in the front compar t­
ment.
I ON /OFF] Tu rni ng o n and off
The air conditioning can be turned on and off by pressing the
I ON /OFF] button. With the ignit ion Off, the residual heat function
can be activated by pressing the button . The residual heat from the
Contro ls a nd eq uip­
ment
coolant can be used to heat the vehicle interior. The residual heat
f unction is turned off au tomatica lly after 30 minu tes .
Se tting th e te mp era tu re
Temperature can be adjus ted over a range from 64 °F (+ 18 °C) to 80
°F (+26 °C)
(!) A ir di st ribu tion
You can adjust the air circulation so that air flows from specific
vents.
• In the @setting, al l the air flows from the v ents in the center
conso le and the outlets in the door pillars.
• In the
-Or setting, air flows from the outlets under the front seats.
• In
the~ setting, air flows from ou tlets in the center console and
the door pil lars as we ll as from the outlets under the front seats .
To regulate air distribution automatical ly, swi tch to !AUTO].
~ H ea ted se ats*
In posit ion O the heating for the seats is turned off. The range of
adjustment is from 1 to 6 .
The seats can be pre -heated for about 10 minutes us ing the heating.
However , the heating is turned off if the seat sensors do not detect
the weight of an occupant during this period .
[ty) Ventil ate d seats*
The seat cushion and the seat back surfaces of the fron t seats can
be ventilated. In position
O the seat ventilation is turned off. The
range of adjustment is from 1 to 6 .
! AU TO
I Autom ati c o pera tion
Air tempe rature, volume of air and air dis tribu tion are automatically
regulated to achieve or maintain the desired temperatures as
quickly as possible .
.,
Vehicle care I I irechnical data

___ w_ a_ r_ m __ a_n_ d_ c_ o_ld ________________________________________________ _
0 Note
To avoid damage to the heating elements in the seats, do not kneel
on the seats or place heavy loads on a small area of the seat. •
Basic settings [SETUP]
General
The basic settings for the climate control are performed in
the[SETUP] menu.
Fig . 141 MMI display:
Setup climate control
The basic settings for the air conditioning can only be made
with MMI turned on.
- Press the !SETUP] button in the controls to access the
menu.
- Select the desired function using the control knob (driver
or passenger) in the air conditioning controls.
The following functions can be selected:
• ECON
=> page 126
• Automatic recirculation => page 126
• Synchronization => page 127
• Center air vent=> page 127
• Rear seat operation* => page 127
• Solar operation* => page 127•
ECON
The ECON mode helps to save fuel.
The air conditioning is turned off in ECON mode. "ECON" means
"Economy". By switching off the air conditioning (compressor), you
save fuel.
Please note that vehicle interior temperature cannot be lower than
the outside temperature in the ECON mode. The air is not cooled or
dehumidified.
If the vehicle interior becomes too hot or if the windows fog up,
ECON mode should be turned off. As soon as the
(AUTO ] button in
the air conditioning controls is pressed, the system automatically leaves the ECON mode, and the air conditioning compressor is
tu rned on again. •
Automatic recirculation mode
An air quality sensor detects increased concentrations of pollutants in the outside air and automatically switches
to recirculation mode.
We recommend that you always keep automatic air recirculation ON
to prevent polluted outside air from entering the vehicle interior.
If the
air quality sensor located in the air conditioning system
detects polluted outside air, the sensor decides whether the air
pollution can be reduced by the factory-installed pollutant filter or
whether it is necessary to switch to air recirculation . W ith heavy
concentrations of pollutants, the air conditioning system is
switched automatically to recirculation mode and the supply of
outside air is blocked. As soon as the concentration of pollutants in
~

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 ..,,