2008 AUDI S8 key

Intellig ent tec hnol ogy -
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vidual components . It regulates consumption, so that more elec­
t rical energy is not be ing used than is be ing genera ted and ensures
an optimal state of charge for the battery .
[ i ] Tip s
• But even energy management cannot negate the limits of
physics. Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
~ page 275, "Driver notification in the instrument cluster
display" .•
What you should know
The highest priority is given to maintaining starting capa ­
bility.
T he battery is severely taxed in short -distance driving, in city traffic
and during t he co ld time of year . Abundant e lectrica l energy is
required, but on ly a little is generated . It is also critical if the engine
is not running and e lectrical components are turned on. In this
instance energy is being consumed but none is being generated .
I t is in precisely these situations that you wi ll notice energy manage ­
ment active ly regulating the d istr ibut ion of energy.
Vehicl e stands for an extended period
If you do not drive your vehicle over a per iod of several days or
weeks, electrica l components are gradually cut back or switched off.
This reduces energy consu mpt ion and maintains starting capability
over a longer period .
Be aware t hat when you unlock you r ve hicle, some o f the conve ­
nience functions may not operate, such as the Advanced Key, the
remote contro l or t he power seat adjustment. T he convenience
functions will be available again when you turn on the ignition and start the engine .
Controls and equip­
ment Safety first Vehicle operation With th
e engin e turned off
If you listen to the radio, for examp le, with t he engine tu rned off or
use other MMI functions, the battery is being discharged.
I f starting capabi lity is jeopardized due to energy consumption, the
f o llow ing warn ing appears in t he MMI display:
Ple ase start engine , other wise sy stem will s witch off in 3
minute s.
The warning indicates that the system wi ll be turned off au tomat i­
ca lly after 3 minutes. If you wish to continue using the functions,
you have to start the engine .
With the engine running
Although e lectrica l energy is generated when the vehic le is being
driven, the battery can become discharged. This happens mostly
when little energy is being generated and a great deal co nsumed
and the battery's state of charge is not optimal.
To br ing the ene rgy balance bac k into equi librium , cons umers
which require especially large amounts of energy are temporar ily
cu t back or switched off . Heating systems in part icu lar require a
great deal of energy. If you notice, for example, that the heated
seats* o r the heated rear w indow are not heating, they have been
temporari ly cut back or switc hed off. These systems wil l be avai lable
again as soon as the energy balance has been restored.
You wil l also notice t hat engi ne idle speed has been increase d
s lightly . This is norma l and not a cause for concern . By increasing
engine idle speed the addi tiona l energy required is ge nerated a nd
the battery is charged. •
Driver notification in the instrument cluster
display
I f the battery's state of charge is not in the optima l range, this driver
no tificat io n ap pears in the instrument cl uster d isplay:
t:3 Low battery ch arge : battery will be charged while dri ving .,_
Vehicle care Do-it-yourself service Technical data

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essential to have a long -lasting corrosion protection reapplied to al l
su rfaces, sea ms, joi nts a nd compo nents i n th e eng in e c om pa rt ­
m ent .
& WARNING
Be aware: The engine compartment of any motor vehicle is a
potentially hazardous area.
• Before working in the engine compartment, be sure to read the
information
::::> page 299.
• Before reaching into the front plenum panel, always remove the
ignition key . Otherwise, the windshield wiper system could unin ­
tentionally be switched on , possibly causing personal injury from
the moving wiper linkage .
• Never reach into the area around or touch the radiator fan . The
auxiliary fan is temperature controlled and can switch on suddenly
-even when the ignition is off.
• Do not wash, wax or dry the engine with the engine running .
Moving or hot parts could injure you.
• Do not clean the underside of the chassis, fenders, wheel
covers, or other hard to reach parts without protecting your hands
and arms. You may cut yourself on sharp-edged metal parts .
• Always read and heed all WARNINGS and other information
=> page 288 . •

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•
Closing the engine hood
- Pull the hood down until the pressure from the struts is
reduced .
- Let the hood
drop down and latch in place. Do not try to
push it shut;
it may fail to engage =>& .
& WARNING
A hood that is not completely latched could fly up and block your
view while driving.
• When you close the engine hood, check it to make sure the
safety catch has properly engaged. The hood should be flush with
the surrounding vehicle body parts.
• If you notice while driving that the hood is not secured prop­
erly, stop at once and close it. •
Working in the engine compartment
Be especially careful whenever you work in the engine
compartment.
Whenever you must perform any work in the engine compartment,
for example checking and filling different fluids, there is a risk of injury, burns and accidents. To prevent personal injury always
observe the following WARNINGS. The engine compartment of any
vehicle is a hazardous area
~ & .
& WARNING
To help avoid injury, before you check anything under the hood :
• Turn off the engine. • Remove the ignition key.
• Apply the parking brake.
• I I • • I
& WARNING (continued)
• Move selector lever to "P" (Park).
• Always let the engine cool down. Hot components will burn
skin on contact.
• To reduce the risk of being burned, never open the hood if you
see or hear steam or coolant escaping from the engine compart­
ment. Wait until no steam or coolant can be seen or heard before
carefully opening the hood.
• Keep children away from the engine compartment .
• Never spill fluids on hot engine components. They can cause a
fire.
• Never touch the radiator fan. The auxiliary electric fan is
temperature controlled and can switch on suddenly.
• Never open the coolant reservoir cap when the engine is still
warm. The coolant system is pressurized and hot coolant could spray out.
• Protect your face, hands and arm from steam or hot engine
coolant by placing a thick rag over the cap when you open the
coolant reservoir.
• If work on the fuel system or the electrical system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in
the engine compartment could start a fire.
- Keep an approved fire extinguisher immediately available.
• To avoid electrical shock and personal injury while the engine
is running or being started, never touch:
-Ignition cables
- Other components of the high voltage electronic ignition system.
• If you must perform a check or repair with the engine running: -First, fully apply the parking brake, move selector lever to
"P"
(Park). .,_
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

1111....__F_ u_ s_ e_s _ a_n _ d_ b_ u_lb _ s _______________________________________________ _
Fuses and bulbs
Fuses
Repl ac ing a fu se
A problem in the electrical system may be caused by a
blown fuse.
F ig . 29 1 I nstrume nt
pa nel l eft : Face cov er
Fi g. 29 2 I nstru m ent
p an el l eft : C ont en t
F ac e cove r
- Locate the fuse which belongs to the component which
failed.
- Switch off the ignition and the electr ical component
affected. -
Carefully pry the face cover off the instrument panel
using t he ign ition key or a screwdriver=> fig . 29 1.
- Remove the plastic
clip @ from i ts retain er in the face
cove r=> fig. 292, place it over the questionable fuse an d
remove the fuse.
- Re place a b low n fuse (recog nizable by the melted metal
s tri p inside) with a fuse of the
same amperage.
The individual circuits are protected by fuses. The fuse panels with
the fuses are located on the left and right front faces of the instru­
ment panel behind a cover and in the left and right storage areas in
the luggage compartment.
There is a plastic
c lip @ in the cover on the left side of the instru ­
ment panel, which can be used to remove the fuses . The
crank @ is
used for emergency operation of the power roof *. You wi ll also find
a labe l on both covers in the instrument panel w ith the fuse layout
© for the corresponding fuse panel.
& WARNING
Nev er r ep la ce a fu se with one tha t has a hi gher amperage rating.
• A fuse w ith a to o high amper ag e cou ld dam age th e ele ctrical
part and c au se a fire .
0 Note
• On no account should fuses be repaired (e .g. patched up with tin
foil or wire) as th is may cause serious damage elsewhere in the elec ­
trical circuit or cause fire .
• If a fuse blows repeatedly , do not keep replacing it. Instead, have
the cause of the repeated short circuit or overload located and fixed
. ...

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General information
Explanation of technical data
Some of the technical data listed in this manual requires
further explanation .
The technical data for your vehicle is listed in the charts starting on
=> page 378. This section provides general information, notes and
restrictions which app ly to this data. •
Vehicle identification
The key data is given on the vehicle identification number
(VIN) pla te and the vehicle data st icker.
F ig. 306 V ehicle Iden ti­
f ic ation Numb er (VIN )
p la te: locatio n on
dri ver's s ide das h
p anel Fig
. 307 The vehi cle
i d e ntifi cat ion la bel -
i n side the lugga ge
com partme nt
The Vehicle Ident ification Numb er (V IN)
is located on the driver's side so that it is visible from the outside
through the
windshie ld => fig . 306 .
The veh icle i de ntifi cation l ab el
is located in the luggage compartment in the spare whee l well.
The
l abel=> fig . 307 shows the following vehic le data :
0 Production contro l No.
G) Vehicle identification No.
G) Type code number
© Type designation/engine output in Ki lowatts
© Engine and transmission code letter
© Paint No./lnterior
0 Optiona l equipment No.'s
Vehicle data 2 to 7 are also found in your Warranty
& Maintenance
booklet.
Th e s afety c ompliance sticker
is your assurance that your new vehicle complies with all app licable
Federa l Motor Vehicle Safety Standards which were in effect at the
time the vehicle was manu factured. You can find this sticker on the
left door jamb . It shows the month and year of production and the .,_

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&, WARNING (continued )
• The engine compartment of any motor vehicle is a potentially
hazardous area . Never reach into the area around or touch the
radiator fan . It is temperature controlled and can switch on
suddenly -even when the engine is off and the ignition key has
been removed . The radiator fan switches on automatically when
the coolant reaches a certain temperature and will continue to run until the coolant temperature drops .
• Always remove the ignition key before anyone gets under the
vehi cle .
• Always support your vehicle with safety stands if it is neces­
sary to work underneath the vehicle . The jack suppl ied with the
vehicle is not adequate for this purpose and could collapse causing serious personal injury .
• If you must work underneath the vehicle with the wheels on
the ground , always make sure the vehicle is on level ground , that
the wheels are always securely blocked and that the engine
cannot be started .
• Always make sure the transmission selector lever (automatic
transmission) is in
"P " (Park position ) and the park brake is firmly
applied.
W For the sake of the environment
• Cha ng ing the eng in e sett ings will adverse ly aff ect em iss ion
levels . This is detrimenta l to the environment and increases fuel
c o nsu mp tion .
• Always observe environmenta l regu lations when disposing of
o ld eng ine oil, u sed b ra ke flu id, d irty e ng in e coo la nt, spe nt batter ies
or worn out tires.
• Undeployed airba g modul es and pret ensioners might be classi ­
fied as Perchlorate Material -special handling may apply, see
www .dtsc.ca .gov/ haza rdouswast e/p erc hlor ate . W hen the vehicle or
parts of the restraint s ystem including airbag modules safety be lts
w it h p ret en sio ner s are scra p pe d, a ll ap pl icable l aw s and reg ula- tions must be observed
. Your authorized Audi dea ler is familiar with
th ese re q ui re me nts a nd we reco mmend th at you h ave your dea le r
perform this serv ice for you .•
Additional accessories,
modifications and parts replacement
Additional accessories and parts
replacement
Always consult an author ized Audi dealer before
pu rcha sing a ccess ories .
Your vehicle incorporates the latest safety design featu res ensuring
a high sta nd ard of ac tive a nd pass iv e sa fet y.
T his sa fety could be compromised by non -approved chang es to th e
veh ic le . Fo r th is reason, if pa rts have to be replaced, please o bse rve
the followi ng po ints wh en insta lling addi tio na l acc essor ies:
A pprove d Audi accesso ries and genuine A udi parts are avai lable
fr om autho rized Aud i d eale rs.
T hese deale rs also have the necessary fac ilities, tools and tra ined
spec ial is ts to ins tal l the part s and accesso rie s prope rly.
L1}. WARNING
Using the wrong spare parts or using non -approved accessories
can cause serious personal injury.
• Use only accessories expressly approved by Audi and genuine
Audi spare parts
• These parts and accessories have been specially designed to
be used on your vehicle .
• Never install accessories such as telephone cradles or
beverage holders on airbag covers or within the airbag deploy-

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A
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 382
Adaptive Air Suspension ....... .. .... 185
automatic mode .. .... .... .... ... 186
Description ... .... .... .......... 185
dynamic mode ................... 186
Jacking mode when changing a flat tire .
188
lift mode . . . . . . . . . . . . . . . . . . . . . . . . 186
Setting the driving modes .. .... ... 188
Sport Chassis Controls . . . . . . . . . . . . 187
standard mode ... .... .... ...... . 186
Trailer towing mode ... .... .... ... 189
Warning/indicator lights .. ... ... 20, 21
Adaptive Cruise Control .............. 139
Changing speed ...... .... ...... . 142
Driver information ............... 144
Drivingintraffic .. .... .... ...... . 140
Error messages . . . . . . . . . . . . . . . . . . 147
Open road . . . . . . . . . . . . . . . . . . . . . . 140
Override ........ ... .. ...... .... . 140
Request for driver to assume control 140
Save speed . . . . . . . . . . . . . . . . . . . . . . 141
Setting distance . . . . . . . . . . . . . . . . . 143
Setting time interval . ... .. .... .... 143
Settings . . . . . . . . . . . . . . . . . . . . . . . . 148
Specia l driving situations . ....... . 149
Status messages ................. 147
Switching on and off ... .. .... ... . 141
System limits ...... .... .... ... ... 149
T emporarily turning off ....... .... 142
warning/indicator lights ... .... .... 145 Adaptive
Light .......... .... .... .... . 72
defective ......................... 36
Adding Engine coolant ................... 316
Engine oil . .... .... .... ... .... ... 312
Windshield washer fluid .... .... ... 323
Additiona l accessories .......... ..... 382
Additives Engine oil ... .. ...... ....... ..... 312
Adjustable steering co lumn .. .... .... 128
Adjusting Front seats . . . . . . . . . . . . . . . . . . . . . . . 86
Instrument cluster i llumination ...... 15
Steering column ................. 128
Advanced Key ....................... 59
Driver's messages . . . . . . . . . . . . . . . . 133
Locking the vehicle .. ...... .... .... 60
START button ................... 131
Starting the engine ............... 131
STOP button . . . . . . . . . . . . . . . . . . . . . 132
Stopp ing the engine ......... ..... 132
Switching on the ignition .......... 131
Unlocking the vehicle . .......... ... 60
Advanced Parking System with rear view
camera
Adjusting the chimes -option 1 .... 180
Adjusting the chimes - option 2 .... 181
front and back with visual display and
r ear-view camera . . . . . . . . . . . . . . . 170
General information ... .... ....... 170
Not es on distance information ..... 179
Parking next to obstac les . . . . . . . . . . 178
Rear -view camera -parking mode 1 . 175 Rear-view
camera -parking mode 2 . 176
Rear-view camera (Rear View) ...... 173
Rear-view camera coverage area .... 174
Rear-view camera tips ............ 183
Specia l parking situations .. .... ... 178
Switching the rear-view camera on and
off .. .... .... ...... ... .. .... ... 182
switching the visua l display on and off ..
182
System error message ............ 183
Towing hitch ...... .... ...... .... 180
Air conditioning
See Cl imate controls .... ... .... ... 114
Airbag system .... .... .... ...... 218, 238
Advanced Airbag System ...... .... 222
Advanced Airbag System components ...
225
Care ............................ 232
Child restraints ................ .. 245
Children ... .... .... ... ........ .. 244
Components (front airbags) . ...... . 225
Dang er of fitting a child seat on the front
passenger seat .. ....... .. .... .. 220
Disposal . ...... ..... .. .... .... .. 232
Fron t airbags ...... .... .... .. 222, 223
How do the front airbags work? . ... 227
How many airbags does my vehicle have?
225
How the Advanced Airbag System compo -
nents work together ... .... ...... 226
Impor tant safety instructions on the knee
airbag system .................. 236
Impor tant things to know .. .... .... 218
Indicat or light ........ ........... 229