2009 AUDI S8 service

What do I do now? Ill
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-Disengage and lower the floor panel before you close the
luggage compartment lid again.
Storing the replaced wheel
-Place the replaced wheel inside the spare wheel well in
the luggage compartment.
Tighten the knurled retaining screw clockwise to secure
the wheel in place.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident .
• Never store the spare wheel or jack and tools in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[ i] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use. •
Changing a wheel
Before changing a wheel
Observe the following precautions for your own and your
passenger's safety when changing a wheel.
- After you experience a tire failure, pull the car well away
from moving traffic and try to reach level ground before
you stop
~ & .
- All passengers should leave the car and move to a safe
location (for instance, behind the guardrail) ~& .
- Engage the parking brake to prevent your vehicle from
rolling unintentionally ~& .
- Move selector lever to position P
~ &.
-If you are towing a trailer: unhitch the trailer from your
vehicle.
- Take the jack and the spare tire out of the luggage
compartment~
page 351.
& WARNING
You or your passengers could be injured while changing a wheel if
you do not follow these safety precautions:
• If you have a flat tire, move a safe distance off the road. Turn off
the engine, turn the emergency flashers on and use other warning
devices to alert other motorists.
• Make sure that passengers wait in a safe place away from the
vehicle and well away from the road and traffic.
• To help prevent the vehicle from moving suddenly and possibly
slipping off the jack, always fully set the parking brake and block
the wheel diagonally opposite the wheel being changed. When one ..,
Do-it -yourself service

What do I do now? -
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• Drive at re duced speed until you have the tightening torques
checked .a
A pplies to ve hic les: wit h deco rat ive w heel covers
Decorative wheel covers
The decorative wheel covers must be removed first to
access the wheel bolts.
Removing
Fig . 286 Changing a
wheel: Removing the
wheel cover
- Insert the hook provided with the vehicle tool kit in the
hole in the hub.
Pull off the decorative wheel cover~ fig . 286. •
App lies to veh ic les: w ith whee l bo lts with caps
Wheels with wheel bolt caps
The caps must be removed first from the wheel bolts
before the bolts can be unscrewed .
Removing
Fig. 287 Changing a
wheel: removing the
wheel bolt caps
-Push the plastic clip provided with the vehicle tool kit
over the w heel bolt cap until it engages.
- Pull on the plastic clip to remove the cap ~ fig. 287.
Refitting
- Place the caps over the wheel bolts and push them back
on.
The caps are to pro tect and ke ep the wheel bolts clean. •
Vehicle care Do-it-yourself service irechnical data

_____________________________________________ W_ h_ a_t _d_ o_l _ d_o _ n_o_ w_ ? _ __._
Fig . 290 Close-up :
proper positioning of
jack
- Act iva te the ve hicle ja cking mode before c ha ngin g a
wheel ==>
page 19 1.
- Posi tio n th e jack below th e doo r sill und er t he mounting
point
that is clos est to the w hee l to be cha nged
==>
p age 356 , fig. 289.
- Exten d the
jack und er the li fting po int on the doo r sill
un til it s arm is po sitio ned d irect ly und er t he l if tin g p oint
==> & .
- Align the j ack so th at its a rm
@ en gag es th e plastic
lif ting point on the door si ll and th e mova ble base ® is
flat on the groun d==> fig. 290 .
- Wind th e jack up furt her u ntil the flat tir e co mes off the
gr oun d==> & .
The jack must be installed only at the places indicated~ page 356,
fig. 289 . Th ere is e xactly on e loca tion for e ach w heel. The jack m ust
not b e positioned at any oth er locatio n~ & .
T he jac k should be pos it ioned ap pro xim ately 8 in . (2 0 cm) be hind
the front wh eel or 6 i n. (1 5 c m) in fr ont o f the r ear w heel.
A n unstab le su rface unde r th e jac k can cause the vehicle to slip off
the jack. A lw ay s pro vi de a firm bas e for th e ja ck on the grou nd. If
necessary place a sturdy board or similar s up port under the jack. On ha
rd, sl ippery surfaces (suc h as til es) us e a ru bber mat or similar to
prevent th e ja ck fr om slippin g~ & .
& WARNING
• You or your passengers could be injured while changing a
wheel if you do not follow these safety precautions:
-Positioning the jack under the vehicle at any other place than
those indicated above may damage the vehicle or may result in
personal injuries.
- A soft or unstable surface under the jack may cause the
vehicle to slip off the jack . Always provide a firm base for the
jack on the ground . If necessary , use a sturdy board under the
jack .
- On hard , slippery surface (such as tiles ) use a rubber mat or
similar to prevent the jack from slipping.
• To help prevent injury to yourself and your passengers :
- Do not raise the vehicle until you are sure the jack is securely
engaged .
- Passengers must not remain in the vehicle when it is jacked
up .
- Make sure that passengers wait in a safe place away from
the vehicle and well away from the road and traffic .
- Make sure jack position is correct, adjust as necessary and
then continue to raise the jack.
[ i ] Tips
Be for e changi ng th e whee l, yo u m ust ac tiv ate the jac king mode , so
that the automat ic controls for t he Adapt ive Air Suspension do not
make it more diffic ult to lift the vehi cle with the jack~
page 191. •
Vehicle care Do-it-yourself service irechnical data

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hub. Remove all dirt from these surfaces before remounting the
whee l.•
Tires with unidirectional tread design
Tires with unidirectional tread design must be mounted
with their tread pa ttern pointed in the ri ght direction.
Using a spar e tire with a tread pattern intended for u se
in a sp ecific di rec tion
When using a spare tire with a tread pattern intended fo r use in a
specific direction, p lease note the following:
• The direction of rotation is ma rked by an arrow on the side of the
tire .
• I f the spare tire has to be insta lled in the incorrect direction, use
the spare tire only temporarily since the tire wi ll not be able to
achieve its optimum performance characteristics with regard to
aquaplaning, noise and wear.
• We recommend that you pay particular attention to this fact
during wet weather and that you adjust you r speed to match road
conditions .
• Replace the flat tire with a new one and have it installed on your
veh ic le as soon as possible to restore the handling advantages of a
un idirectional tire. •
Notes on wheel changing
Please read the information :::::, page 338, "New tires and replacing
tires and whee ls" if you are going to use a spare tire which is
di fferent from the t ires on your veh ic le.
After you change a tire :
• Check the tire pre ssure on the spare immediately after installa ­
tion . • Have the wheel bolt t
ighten ing torque che cked with a torque
wrench as soon as possible by your authorized Audi dealer or a qualified service station .
• With steel and alloy wheel rim s, the wheel bolts are correctly
tighte ned at a torque of 90 ft lb (120 Nm ).
• If you noti ce that the wheel bolt s are corroded and difficult to
turn while changing a ti re , they should be replaced before you che ck
the tightening torque .
• Replace the flat t ire with a new one and have it installed on your
vehicle as soon a s possible . Remount the whee l cover.
Until then , dri ve with extra care and at reduced speed s.
& WARNING
• If you are going to equip your vehi cle w ith tires or r ims which
differ from those which were factory in stalled , then be sure to read
the information :::::,
page 338, uNew tires and repla cing tires and
wheel s".
• Always mak e sure the d am aged wheel or e ven a flat t ire and
the jack and tool kit are properl y secured in the luggage compart ­
ment and are not loose in the pass enger compartment .
• In an a ccident or sudden maneuver they could fly forward ,
injur ing anyone in the vehicle .
• Alway s store damaged wheel , ja ck and tools securely in the
luggage comp artment . Otherwise , in an accident or sudden
m aneuv er they could fly forward , cau sing injury to pas senger s in
the veh icle .
• Do not use commercially available ti re sea lants. Othe rwise, the
ele ctri cal component s of t he tire pres sure mon itor ing system * will
no longer wo rk properly and the sen sor for the tire pre ssure moni ­
tor ing s ystem* w ill have to be replaced by a qualified workshop . •
Do-it -yourself service

_________________________________________________ F_ u_ s_ e_s _ a_n _d_ b_ u _ lb_ s _ __._
[ i J Tip s
You are wel l advised to keep a supply of spare fuses in your vehic le.
Fuses with the proper ampere ratings are available at your Audi
dealer. •
Fuse Location , Instrument Panel left
F ig. 295 Fuse pan el
l ayout
Some of the equipment items listed are optiona l or only available on
certain model configurations.
No te t hat th e fo llow ing t able is acc urate a t the time o f goin g to
p re ss an d is s ubject to c hang e. In the e vent of di screpancies, the
lab el on the insi de of th e cover alwa ys ta kes prece dence .
The power windows and the power seats are protected by cir cui t
bre akers,
which automatically reset after a few seconds after the
over load -for example if a window is frozen -has been remedied .
N o. Equipm ent
1 Garage door opener (HomeLinkl 5
Parking assist system 5
3
Parking assist system 5
4
Headlight range control/light control device 10
No .
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Equipm ent Amps
Instrument c luster
5
Steering column electronics system control 1 0
Diagnostic connector 5
Diagnostic connector/oil level sensor 5
ESP contro l unit/steering angle sensor 5
Instrument cluster 5
Audi lane assist 10
Brake light switch 5
Telephone/cell phone 10
Vacant
Access/start control module
5
RSE system 10
Adaptive Cruise Control 5
Heate d washer jets 5
Vacant
Tire pressure monitoring system*
5
Vacant
Brake light switch
5
Ce ll phone preparation 5
Horn 1 5
Windshield wiper system 40
Vacant
E lectronic Stabilization Program (ESP)
25
Vacant
Switch illumination
1
Vehicle care Do-it-yourself service irechnical data

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No. II Equipment
8 Engine control, auxiliary water pump
9
10
11
12
13
Climate control front /rear, dash panel buttons
Suspension leve l control system
(Adaptive Air Suspension)
Light and rain sensor
Display-/control unit
Roof electronics control unit
CD/DVD drive
15 Energy managemen t
16 Vacant
17 Radiator fan electronics
18 Airbag front passenger recognition
(weight sensor)
19 Vacant
20 Heated/ventilated seats
21 Engine control module
22 Vacant
23 Parking brake (switch)
24 Vehicle electrical system
25
26
27
Automatic transmission Air conditioning water valves water pump, rear climate control
Sunroof
28 Engine control module
29 Fuel injectors
30 Ignition coils Amps
10
5
10
5
5
10
5
5
5
5
5
5
5
10
15
10
20
5
15
30 No. Equipment
31 Fuel pump, right/fuel pump electronics
32 Automatic transmission
33 Right rear footwell heater
34 Heated/ventilated seats, rear
35 Heated/ventilated seats, front
36 Cigarette l ighter, front
37 Cigarette lighte r, rear/socket, rear
38 Auxiliary cooler fan
39 Door control unit, front right
40 Brake booster
41 Door control unit, rear right
42 Vacant
43 Headlight washer system
44 Air conditioning heater fan Amps
20/40
5
25
20
20
20
20/25 20
7.5
15
7.5
30
30
•
Fuse Location , Luggage Compa rtment left
0
Fig . 297 Fuse panel
layout _.
Vehicle care Do-it-yourself service irechnical data

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erl y put back to g eth er to help pr eve nt brea kage of parts and long
te rm dam age fro m water that can enter h ous ing s th at h ave not
been properly resealed.
F or y our safety , we reco mmend that you have your autho rized A udi
dea ler rep lace any b ulbs for you, s ince you r deale r has the proper
tools, the correct bu lbs and the expertise.
Gas discharge lamps (Xenon lights):
D ue to the hi gh e lectrical voltage, have the bu lbs replaced by a qual ­
ified techn ic ian. Headlights wi th Xenon light can be ide ntifie d by the
h igh voltage s tic ke r.
& WARNING
Contact with high-voltage components of the ele ctri cal system
and improper replacement of gas discharge (Xenon) headlight
bulbs can cause ser ious personal injury and death .
• Xenon bulbs are pressurized and can explode when being
changed .
• Changing Xenon lamps requires the special training, instruc ­
tions and equipment .
• Only an authorized Audi dealer or other qualified workshop
should change the bulbs in gas discharge lamps .
& WARNING
There are parts with sharp edges on the openings and on the bulb
holders that can cause serious cuts.
• If you are uncertain about what to do, have the work performed
by an authorized Audi dealer or other qualified workshop. Serious
personal injury may result from improperly performed work.
[ i ] Tips
• I f you must replace the light bulbs yourse lf , always remember
tha t the e ngi ne compartmen t of an y ve hic le i s a hazardous area to work in. Always read and heed al
l WARNINGS=>
page 301, " E ngine
c om partm ent" =>& .
• I t is best to ask your authorized Audi dealer whenever you need
to ch ang e a bul b.•
Do-it -yourself service

________________________________________________ E_ m ___ e_r.::g ~e ___ n_c ~y:.- s;_ i_t _u :...:a:..:. t.:.: i...:o :...:n...:..:. s _ __,J_
& WARNING !continued)
• Before you check anything in the engine compartment, always
read and heed all WARNINGS~ page 301, "Engine compartment".
0 Note
• Applying a higher voltage booster battery will cause expensive
damage to sensitive electronic components, such as control units,
relays, radio, etc .
• There must be no electrical contact between the vehicles as
otherwise current could already start to flow as soon as the positive
(+) terminals are connected.
[ i) Tips
• The discharged battery must be properly connected to the
vehicle's electrical system. When jump starting or charging the
battery , never connect the negative ground cable to the battery
negative post because the battery manager system must be able to
detect the battery's state of charge. Always connect the negative
ground cable to the negative ground post of the battery manager
control unit .•
Use of jumper cables
Make sure to connect the jumper cable clamps in exactly
the order described below!
Fig. 299 Jump starting
with the battery of
another vehicle: A -
discharged vehicle
battery, B -booster
battery
The procedure described below for connecting jumper
cables is intended to provide a jump start for your vehicle.
Vehicle with discharged battery:
-Turn off lights and accessories, move lever of automatic
transmission to
N (Neutral) or P (Park) and set parking
brake.
Connect POSITIVE (+) to POSITIVE (+) (red)
1. Connect one end to the positive terminal~ fig . 299 G)
of your battery @.
2. Connect the other end to the positive terminal
@ of the
booster battery
@.
Connect NEGATIVE (-) to NEGATIVE (-) (black)
3. Connect one end to the negative terminal @ of the
booster battery
@.
Vehicle care Do-it-yourself service irechnical data