2008 AUDI S8 fog light

Clear vision
Outside mirrors
The ou tside mirrors are electrically adjusted.
Adjusting the outside mirrors
Fig . 8 0 F orw ard
s e ction of drive r's
a rmre st: powe r m irror
c ontr ols
Turn the adjusti ng knob to position ©~ fig. 80 to adjust
t h e ou ts ide mir ror on t he d river's side .
- Tu rn the knob to posi tion
@ to adjust the outs ide m irror
on the passenger side.
- Press th e kno b in the appropr iate direct io n to move the
m irror surface so t hat you have a good view to the rear.
Folding both outside mirrors in flush
- T urn t he knob
to @ .
The mirror surfaces a re heated whenever you switch on the rear
window defogger in response to the outside temperature .
We recommend folding the outside mirro rs flat t o help when
parking your vehicle or when maneuvering in very tight spaces .
Tilting the passenger's side out side mirror
When you move the se lector lever into R (Reverse), the mirror on the
front passenge r's doo r (knob turned
to @ => fig. 80) w ill til t slight ly downward
. This make is easier for you to see the curb when you are
b acking in to a parking space.
T he mirror returns to its ini tial position as soon as reverse gear is
disengaged and vehicle speed is above about 9 mph (15 km/h). The
m irror also returns to its initia l position if the switch is moved to the
driver's outside mirror
(0 or Neutral @.
Memory setting for the outside mirrors
When the seat posi tion is saved in memory, the position of the
outside mirrors is saved at the same time
=> page 94 .
Automatic anti -glare for the outside mirrors
T he outside mi rrors dim at the same time as the inside mirror . When
t h e ignition is switched on, the mir rors au tomatical ly dim
depending on the amount of light strik ing the mirrors (such as head­
l ights shining into the vehicle from the rear).
When you turn on the interior l ight, or when y ou mo ve the se lect or
l ever into
R (Reverse), the anti -g lare function stops and the mirrors
r eturn to their original condi tion (n ot dar ken ed).
0 Note
• Curve d (i. e . convex) mirror sur faces increase your field of view.
Remember that vehic les or other objects w il l appear smaller and
farther away than when seen in a fla t mi rror . If you use this mirror to
estimate distances of fol lowing vehicles when changing lanes, you
cou ld estimate incorrectly and cause an accident .
• I f the mirror housing is moved unintentional ly (for example,
while park ing your vehicle), then you must fi rst fo ld the mirror elec ­
trically . Do not readjust the mirror housing manually. You could
damage the motor which controls the mirro r.
[ i ] Tips
• I f there should be a malfunction in the elect rical system, you can
st ill adjust the outside m irrors by pressing the edge of t he mirror .
~

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Warm and cold
Climate controls
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the following settings:
- Set the temperature to 75 °F (+23 °C).
- Press the !AUTO
I button.
With this setting, you attain maximum comfort in the least amount
of time. Change this setting, as desired, to meet your personal needs.
The climate controls are a combination of heating, ventilation and cooling systems, which automatically reduce humidity and cool the
air inside your vehicle.
The air temperature, air flow and air distribution are automatically
regulated to achieve and maintain the desired passenger compart­
ment temperature as quickly as possible.
The system automatically compensates for changes in outside
temperature and for the intensity of the sunlight entering the
vehicle. We recommend you use the
Automatic mode=> page 117
for year -round comfort.
Please note the following:
Turn on the air conditioner to reduce humidity in the vehicle. This also prevents the windows from fogging up.
When the outside temperature is high and the air is very humid ,
condensation from the evaporator may drip under the vehicle. This
is normal and does not indicate a leak. If the outside temperature is
low, the fan normally only switches to
a higher speed once the engine coolant has warmed up sufficiently.
The air conditioner temporarily switches off when you drive off from
a standstill using full throttle to save engine power.
The compressor also switches off if the coolant temperature is too high, so that the engine can be adequately cooled under extreme
loads.
Air pollutants filter
The air pollutants filter (a combined particle filter and activated
charcoal filter) reduces or prevents outside air pollution (dust, or pollen) from entering the vehicle.
The air pollutants filter must be changed at the intervals specified
in your Warranty
& Maintenance booklet, so that the air conditioner
can properly work.
If you drive your vehicle in an area with high air pollution, the filter
may need to be changed more frequently than specified in your
Audi Warranty
& Maintenance booklet. If in doubt, ask your autho­
rized Audi Service Advisor for advice.
Key coded settings
The air conditioner settings selected are automatically stored and
assigned to the key being used. When the vehicle is started, the air
conditioner automatically selects the settings assigned to that key.
This way every driver will maintain his/her own personal settings
and does not have to reset them manually.
If a different driver uses your key and changes the air conditioner
settings, the latest adjustments will erase and replace the settings
you have stored.
Energy management
To prevent the battery from being discharged and to restore the
balance of energy, components which require large amounts of

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. •

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0 Note
If the warning/indicator light (U.S. models : BRAKE, Canadian models:
) flashes in the instrument cluster, there is a brake system
malfunction. By pressing the
I CHECK] button , you can bring up a
driv er m essage which explains the malfunction in more detail. If the
message
Parking brake! Please contact workshop appears, there is
a parking brake malfunction which you should have r epaired imme­
diately by an authorized
dealership => page 30. •
Cruise control
Switching the system on
The cruise control system makes it possible to drive at a
constant speed starting at 20 mph (30 km/h).
rr- -- ...--,,-~------ -~ ----,-~
Contro ls a nd eq uip­
ment
.... S? w ;f,
Fig . 149 Control lever
with set button Fig
. 150 Display:
Selected speed
Pull the lever © to position G) ~ fig. 149 to switch the
system on.
Drive at the speed you wish to set.
- Press button
® to set that speed.
The display => fig. 150 will show the set speed . The display may vary
depending on the type of display in your vehicle. The indicator light
CRUISE (US model)/ 0 (Canadian model) will also ligh t up in the
instrument cluster .
The speed is kept constant via an engine output adjustment or active brake intervention .
& WARNING
• Always pay attention to traffic even when the cruise control is
switched on. You are always responsible for your speed and the
distance between your vehicle and other vehicles.
• For safety reasons, the cruise control should not be used in the
city, in stop-and-go traffic, on twisting roads and when road condi­
tions are poor (such as ice, fog, gravel, heavy rain and hydro­
planing) -risk of accident.
• Turn off the cruise control temporarily when entering turn
lanes, highway exit lanes or in construction zones.
Vehicle care
I I irechnical data

-
Audi lane assist
----------------
I Not re ad y: The yellow ind icator light shows that the system is
t urned on but unab le to send a warning . This can be due to the
following:
• There are no boundary lines, or there is on ly one boundary line
present .
• The boundary lines are not detected (e.g. due to snow, dirt, wet
conditions or light shining into the camera lens) .
• More than two boundary lines (such as at construction sites) are
located in the vehicle's lane .
• The vehicle's speed is below the speed needed to activate it,
which is abou t 40 mph (65 km/h).
• The lane is narrower than about 8 ft . (2 .5 m), or wider than about
16
ft . (5 m).
• The curve is too sharp .
Notes on th e instr umen t clu ste r displa y
When the lane assist turns off automatically , the instrument cluster
indicator goes out and one of the following messages appears on
the display:
Audi lan e assist not available: C urre ntl y no se nsor vis ion
This message appears when the camera can no longer function
because it cannot detect the boundary lines. This may be due to the
following :
• The exterior s ide of the camera viewing
window => page 151,
fig. 169 is covered with dirt or ice. Clean this part of th e windshield.
• The camera v iew ing window is fogged up on the inside. In t his
case, wait until the fog disappears before turning lane assist on
aga in.
• The system was unable to detect boundary lines over an
extended period of time due to road conditions (such as snow­
covered lanes). Do not turn lane assist on again unti l the lines can
be more easily detected .
Audi lane assist not ava ila bl e
A temporary malfunction is preventing lane assist from operating .
Try turning on lane assist again a t a la ter t ime.
Audi l ane ass is t: sys te m f ault
T he system should be checked by an authorized Audi dealer or other
qual ified workshop .
[ i ] Tips
• Make sure that the camera viewing window => page 151, fig. 169
is not covered by stickers or similar objects .
• Always keep the camera view ing w indow c lean . This can usual ly
b e don e by op erat ing the windshield wipers. •
App lies to vehicles: w it h l ane assist
MMI settings
You can use the MM/ to adjust the warning time and
steering wheel vibration.
Setting the warning time
- Press the [CAR ] function button.
- Select
Systems in the CAR men u.
- Select
Audi l ane ass is t.
Fig . 17 0 M MI D isp lay :
Se ttin g th e w arning
t im e a nd stee ring
w hee l v ibr ati on

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•
The best way to remove snow from windows and mirrors is to use a
brush. Use a non -abrasive
plastic ice scraper -better still, a spray
deicer -to remove
ice from windows and mirrors .
Oil, grease or silicone residue can be removed with
glass cleaner or
silicone remover . However, wax residue requires the use of a
specially formulated solvent. Please contact your Audi dealer for
advice on safe products for wax removal.
Windows should also be cleaned on the inside at regular intervals .
Never dry windows with the same chamois that you use to dry
painted surfaces . Wax residue on the chamois can impair vision
through the windows.
& WARNING
• Always read and heed all WARNINGS and other information
=> page 288 .
• The windshield must not be treated with water-repellent mate­
rials . They can increase glare under poor visibility conditions such
as wetness, darkness, or when the sun is low on the horizon. In
addition, they can cause the windshield wipers to chatter.
0 Note
• Never use warm or hot water to remove snow and ice from
windows and mirrors. This could cause the glass to crack.
• To prevent damage to the wires of the rear defogger, do not place
any adhesive stickers on the inside of the rear window over the
wires .
• To help prevent dirt from scratching the window, always scrape
in a forward direction -pushing the scraper away from you -never
back and forth. •
Weatherstrips
Complete car care includes the weatherstrips as well.
-Apply a suitable rubber conditioner to the weatherstrips
from time to time.
To be able seal properly, the weatherstrips around the hood, doors,
rear lid, etc . must remain pliable. Spray the weatherstrips with sili­
cone or coat them with talcum powder or glycerine to retain the
flexibility of the rubber and to protect them against freezing in the
winter.
& WARNING
Always read and heed all WARNINGS and other information
=> page 288.
[ i ] Tips
Keep silicone sprays off the windshield to avoid wiper smear in
rain. •
Cast (light) alloy wheels
Cast (light) alloy wheels require special care.
-Wash the wheels with a sponge or hose brush every
other week.
-For deep cleaning afterwards, use only a dedicated acid­
free cast alloy wheel cleaner.
-Rub a coat of liquid wax onto the rims every three month.
Be sure to reach and treat all parts of the rim.
To preserve the decorative appearance of the cast alloy wheels,
some special care is necessary . In addition to road dirt and salt,
Vehicle care

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checked by a service facility. The e lectrolyte level should also be
checked each time the battery is charged =>
page 321.
Have the battery checked when you take your vehicle in for service.
You are well advised to replace a battery that is older than 5 years.
With ce rtain types of airbag deployment, the battery is discon­
nected from the vehicle electrical system for safety reasons=>
& in
"Repair, care and disposal of the airbags" on
page 232.
Di sconn ecting the b atte ry terminal s
Some veh ic le functions (power window regulators, for example) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the battery terminals are connected again. To
prevent this, the battery should only be disconnected from the
veh icle electrical sys tem when absolu tely necessary for repairs.
Veh icl es not driv en for lo ng p eriods
If you do not drive your vehicle over a period of several days or
weeks, electrical components are gradually cut back or switched off.
This reduces energy consumpt ion and maintains starting capability
over a longer period
=> page 274 .
Be aware that when you unlock your vehicle, some of the conve ­
nience functions may not operate, such as the Advanced Key*, the
remote control or the power seat adjustment. The convenience
functions will be ava ilable again when you turn on the ignition and
start the engine.
W int er operati on
During the winter months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
while starting, and the headlights, rear window defogger, etc. , are
used more often .
Avoid unnecessary power consumption, particularly in city traffic or
when trave ling only short distances . Let your authorized Audi dea ler
check the capacity of the vehicle battery before winter sets in
=> page 321. A well charged battery will n ot only prevent starting
problems when the weather is cold, but wi ll also last longer.
[ i ] Tips
If your vehic le is left standing for severa l weeks at extreme ly low
temperatures, the vehicle battery should be removed and stored
where it will not freeze. Th is wil l prevent it from be ing damaged and
having to be replaced.•
Working on the battery
Be espe cially careful when w orking on or near the battery.
Fig . 2 69 Lugg age
co mpartment : R ight ­
si de sto ra ge c omp art­
m ent
F ig. 2 70 Lugg age
co mp artment : B atte ry
T h e ba tter y is lo ca te d in t he luggage compartm ent on the
r ight side b ehind a c ove r. Before you check a nything in the
luggag e co m partment,
read and heed all WARNINGS =>& . .,.
Vehic le care I I irechnical data