oil AUDI S8 2009 Owner's Guide

___ T_ i_ r_e _s_ a_ n_ d_ w_ h_ e_ e _ ls _________________________________________________ _
Incorrect wheel alignment
Incorrect wheel alignment can cause excess ive tire wea r, im pairing
the safety of the vehic le. If tires show excessive wear, have the
whee l alignment c hecked by an au th o rize d Audi deale r or qualifie d
wo rkshop.
All Wheel Drive
Vehicles with quattro® must always have tires of the same size, c ons truc tion and tread type. F or details see
~ p age 275 .
& WARNING
Sudden tire failure can lead to los s of control, a crash and serious
personal injury !
• Never drive a vehicle when the tread on any tire is worn down
to the wear indicators .
• Worn tires are a safety hazard, they do not grip well on wet
roads and increase your risk of "hydroplaning " and loss of control .
• Always keep chemicals that can cause tire dam age , such as
grease, oil , gasoline and brake fluid aw ay from tires .
• Tires age even if they are not being used and can fail suddenly ,
especially at high speeds. Tires that are more than 6 years old can
only be used in an emergency and then with special care and at
lower speeds .
• Never mount used tires on your vehicle if you are not sure of
their "previous history." Old used tires may have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and los s of veh icle control. •
New tires and replacing tires and wheels
New t ires and wheels h ave t o be broke n in.
Fig . 278 T ir e specif ication cod es on the sidewall of a tir e
No.
©
0
©
©
©
©
Description
Passenger car tire (where applicable)
Nominal width of tire in millimeters
Ratio of height to width (aspect ratio)
Radial
Rim diameter code
L o ad in dex and s peed ra ting

Tires and wheels 1111111 ________________________________ ::..:..:....::.=.....::.:..:..:..::..:___:__ _ ___:,___
•
Wheel bolts
Wheel bolts mus t alwa ys be tighte ned to t he correct
to rq ue .
The design of wheel bo lts is matched to the factory installed rims. If
di fferent r ims are fitted , th e cor rect whe el bo lts wi th the rig ht l ength
and c orrec tly shaped bolt heads must be used . This ens ures that
w he els a re fitted se cur ely and th at the bra ke syste m functi ons
correctl y.
In cer ta in c ircums tances, yo u ma y not use w hee l bolts fr om a
differ ent vehicle - even if it is the same model~
page 384 .
& WARNING
Improperly tightened or maintained wheel bolts can become loose
causing loss of control, a collision and serious personal injury.
• Always keep the wheel bolts and the threads in the wheel hubs
clean so the wheel bolts can turn easily and be properly tightened .
• Never grease or oil the wheel bolts and the threads in the wheel
hubs. They can become loose while driving if greased or oiled,
even if tightened to the specified torque .
• Only use wheel bolts that belong to the rim being installed .
• Never use different wheels bolts on your vehicle.
• Always maintain the correct tightening torque for the wheel
bolts to reduce the risk of a wheel loss .
If the tightening torque of
the wheel bolts is too low, they can loosen and come out when the
vehicle is moving . If the tightening torque is too high, the wheel
bolts and threads can be damaged and the wheel can become
loose .
0 Note
The s pecified torque for the wheel bolts is 90 ft lb ( 120 N m) with a
to lerance o f± 7,4 ft lb(± 1 0 Nm). Torque whee l bolt s diago nally.
After chang ing a whee l, the torque must be checked as soon as possible with a torque wrench
-preferably by an authorized Audi
d e aler o r qua lifi ed wo rksho p.•
Low aspect ratio tires
You r A ud i is fac tory-eq uippe d w ith low aspect ra tio tire s. T hese tire s
have been thorough ly t ested and b een se lected specifica lly for your
mod el for thei r su p erb pe rf or manc e, r oad f eel an d ha nd ling under
a variety of driving con ditions . As k your authorized Audi d ealer for
m ore de ta ils.
The low aspect rat io o f th ese t ires is indicated by a numer al of 55 or
less in the t ire's size designation. The numeral rep resents the ratio
o f t he t ire's s idewa ll he ig ht in rel ati on to it s tread w idt h ex pressed
in percentage . Conventiona l tires have a height/width ratio of 60 or
mo re.
The performan ce of low -aspe ct-ratio tires is particularly sensitive to
improper inflation pressure . It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the
inflat ion pressure is regularly checked and ma intained. Tire pres­
sures should be checked at least once a month and always before a
long trip~
page 333, "Checking tire pressure" .
What you can do to avoid tire and rim damage L ow aspect ratio tires can be damaged mo re easily by impact with
po tho les, cu rbs, gull ies o r rid ges o n th e road, particular ly if the t ire
is underinf lated .
I n or der to mini mize th e occurrence of i mpac t da mag e to t he tires
of your vehicle, we recommend that you observe the fol lowing
pr ecaut ions :
• Always ma intain recom mended inflatio n pr essu res . C heck you r
ti re p ressu re eve ry 2,000 mi les (3,000 k m) and add a ir if neces sary .
• D rive carefully on roads with potho les, deep gullies or ridges.
T he impact from d riving th rough or ove r such obstac les can
da mage y our tires. I mpact with a cu rb m ay a lso cause damage to
your tire s. ..,
Vehicle care
I t •

111'1...__F_ u_ s_ e_s _ a_n _ d_ b_ u_lb _ s _______________________________________________ _
Fuses and bulbs
Fuses
Replacing a fuse
A problem in the electrical system may be caused by a
blown fuse.
Fig. 293 Instrument
panel left: Face cover
Fig . 294 Instrument
panel left: Content
Face cover
-Locate the fuse which belongs to the component which
failed.
Switch off the ignition and the electrical component
affected. -
Carefully pry the face cover off the instrument panel
using the ignition key or a screwdriver~ fig. 293.
- Remove the plastic clip@ from its retainer in the face
cover~ fig. 294, place it over the questionable fuse and
remove the fuse.
- Replace a blown fuse (recognizable by the melted metal
strip 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 clip@ 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 will also find
a label on both covers in the instrument panel with the fuse layout
© for the corresponding fuse panel.
& WARNING
Never replace a fuse with one that has a higher amperage rating.
• A fuse with a too high amperage could damage the electrical
part and cause a fire.
(D Note
• On no account should fuses be repaired (e.g. patched up with tin
foil or wire) as this 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 . .,_

_________________________________________________ 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

_________________________________________________ F_ u_ s_ e_s _ a_n _d_ b_ u _ lb_ s _ __.11111
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

-Emergency situations PV:f...__---=---=---------------
-Read and hee d W ARNI NG =:> & .
Fig. 30 7 Re ar lifting
point
Ac tiv ate t he vehicle jackin g mode if a pp licable
=:>
p age 19 1.
-Locat e lifting po in ts =:> page 371, fig. 3 06 =:> fig . 3 07 .
Ad ju st li ftin g a rms of works hop hoi st or floor jack t o
m atch v ehicle li ftin g poi nts.
In sert a r ub be r pad between the floor jack /wo rk sh op
h o ist and t he li ftin g poin ts.
The vehicle jac kin g m ode m ust be ac tiva ted so that the a utomatic
adjustment of the Adaptive Air Suspension does not make it more
d iffic ult to ra ise the vehic le w ith the ( floor jack) => page 19 1.
If you must lift your vehicle with a floor jack to work underneath , be
sure the vehicle is safely supported on stands intended for this
purpose.
Front lifting point
Th e lif ti ng po int is locat ed o n th e floo r pan re inf orc emen t abou t at
the same leve l as t he jack mounting point => page 371, fig. 306 . Do
not lift the vehicle at the vertical sill reinforcement. Rear lifting point
Th e lif tin g po int is loc ated on t he ver tical re infor ce ment o f the lo wer
s ill for t he on -boa rd jack=> fig . 3 07 .
Lifting with vehicle jack
R efer to => page
356 .
& WARNING
• To reduce the risk of serious injury and vehicle damage .
- Always lift the vehicle only at the special workshop hoist and
floor jack lift points illustrated
=> page 371 , fig . 306 and
=> fig. 307.
- Failure to lift the vehicle at these points could cause the
vehicle to tilt or fall from a lift if there is a change in vehicle
weight distribution and balance. This might happen , for
example, when heavy components such as the engine block or
transmission are removed .
• When removing heavy components like these, anchor vehicle
to hoist or add corresponding weights to maintain the center of gravity. Otherwise , the vehicle might tilt or slip off the hoist,
causing serious personal injury .
0 Note
• Be awar e of the following points be fore liftin g the vehicle :
- The vehicle should never be lifted or jacked up from under­
neath the engine oil pan , the transmission housing , the front or
rear axle or the body side members . This could lead to serious
damage .
- To avoid damage to the underbody or chassis frame, a rubber
pad must be inserted between the floor jack and the lift points .
- Before driving over a workshop hoist, check that the vehicle
weight does not exceed the permissible lifting capacity of the hoist . _..

_________________________________________________ G_ e_ n_ e_r _a _l_ i_n _f_o _ r_ m_ a_ t _i _o _ n __ PII
vehicle identification number of your vehicle (perforation) as well as
the Gross Vehicle Weight Rating (GVWR) and the Gross Axle Weight
Rating (GAWRl.
The high voltage warning label is located on the lock carrier.
The spark ignition system complies with the Canadian standard ICES-002. •
Displaying Vehicle Identification
Number in MMI
Fig. 310 MMI display:
Vehicle ID number
(VIN)
You can also display the Vehicle Identification Number of
your vehicle in MMI.
- Press the
(CARI function button.
- Select Systems in the CAR menu.
- Select Vehicle ID number (VIN). The Vehicle ID number
(VIN) menu appears ~ fig. 310. •
Controls and equip­
ment Safety first Vehicle operation
Weights
Gross Vehicle Weight Rating
The Gross Vehicle Weight Rating (GVWR), and the Gross Axle Weight
Rating (GAWR) for front and rear are listed on a sticker on the left
door jamb.
The Gross Vehicle Weight Rating includes the weight of the basic
vehicle plus full fuel tank, oil and coolant, plus maximum load,
which includes passenger weight (150 lbs/68 kg per designated
seating position) and luggage w eight .
Gross Axle Weight Rating
The Gross Axle Weight Rating is the maximum load that can be
applied at each axle of the vehicle~& .
Vehicle capacity weight
The vehicle capacity weight (max. load) is listed either on the
driver's side B -pillar or inside the fuel fill er flap .
Roof weight
The maximum permissible roof weight is 220 lb (100 kg). The roof
weight is made up of the weight of the roof rack system and the
weight of the object being transported~ page 104, "Loading the
roof rack".
& WARNING
• The actual Gross Axle Weight Rating at the front and rear axles
should not exceed the permissible weights, and their combination
must not exceed the Gross Vehicle Weight Rating.
• Exceeding permissible weight ratings can result in vehicle
damage, accidents and personal injury.
Vehicle care Do-it-yourself service Tec hn ica l da ta

lllffl __ G_ e_n_ e_ r_ a _l _i_n _f _o _ r_ m_ a_ t_ i_ o _ n ________________________________________________ _
0 Note
• The vehicle capacity weight figures apply when the load is
distributed evenly in the vehicle (passengers and luggage). When
transporting a heavy load in the luggage compartment, carry the
load as near to the rear axle as possible so that the vehicle's
handling is not impaired.
• Do not exceed the maximum permissible axle loads or the
maximum gross vehic le weight. Always remember that the vehic le's
handling will be affected by the extra load. Therefore, adjust your
speed accordingly .
• Always observe local regulations. •
Dimensions
The specifications refer to the basic model. Differences may occur
depending on the mode l type and options ordered, for example, tire
sizes.
0 Note
When driving up steep ramps, on rough roads, over curbs, etc. it is
important to remember that some parts of your vehicle, such as
spoilers or exhaust system components, may be close to the
ground. Be careful not to damage them. •

___ D_ a_t _a ________________________________________________________ _
Data
Applies to vehi cle s: wi th 8 -cy lin der eng ine a nd all whee l dri ve
350 hp, a-cylinder engine, with all wheel drive
Engin e data
Maximum output SAE net
Maximum torque SAE net
No. of cy linders
Dis placement
Stroke
Bore
Compression ratio
Fuel
D im ensi on s (ap prox.)
Length (with licence plate bracket)
Width (across mirrors) Height (unloaded)
Turning circle diameter (curb to curb)
Ca pacitie s (a pprox.)
Fuel t ank
-Total capacity
- Reserve (of total capacity)
Wind shield and h eadlight washer fluid cont aine r
Engine oil
with filter change hp@rpm
lb
-ft@ rpm
CID (cm
3 )
in (mm)
in (mm)
350@6800
325@3500
8 cylinder
254 (4163)
3.65 (92.8)
3 .33 (84.5)
12.5: 1
Premium unleaded (91 AKI) Recommended for maximum engine performance . Fur ­
ther details =:>
page 303, "Gasoline"
in (mm)
in (mm)
in (mm)
ft. (ml
A8 = 199.3 (5062)
A8 = 79 .8 (2028)
A8 = 56.9 (1444)
A8 = 41.0 (12.5)
gal (liters)
gal (liters)
quarts (liters)
quarts (liters)
A8 L = 204 .4 (5192)
A8 L = 79 .8 (2028)
A8 L = 57.3 (1455)
A8 L =41.7 (12.7)
23.8 (90.0)
2.4 (9.0)
5 .1 (4.8)
9.6(9. 1)
•

_______________________________________________________ D_ a _ t_a __ lllll
Ap plies to vehic les : w it h 12-c ylinde r en gine a nd a ll whee l dr ive, lo ng wheel base (L WBl
450 hp , 12-cylinder engine , with all wheel drive , long wheel base
Engine data
Maximum ou tput SAE net
M aximum torque SAE net
No . of c ylind ers
D isplac eme nt
Stroke
Bore
Co mpress ion ratio
Fuel
Dimensions (approx .)
Leng th (wi th lice nce plate bracke t)
Width (ac ross m irrors)
Height (unloaded)
Tu rning circle d ia m ete r (cu rb to cu rb)
Capacities (approx .>
Fuel tank
- Tot al capac ity
- Reserve (of total capacity)
Windshield and headlight washer fluid container Engine oil wit h filter ch ange hp@rpm
lb-ft@ rpm
CID (c
m
3
)
in (mm)
in (m m) 45
0@ 6200
428 @ 4000-47 00
1 2 cy linde r
366 (5998)
3 .55 (90.2)
3 .3 1 (84 .0)
11. 0: 1
Premium unleaded 191 AKO Recommended for maximum engine performance . Fur ­
t her details =>
pa ge 303, "Ga soli ne"
in ( mm)
i n (mm)
in (mm)
f t. Im ) 20
4.4 (519 2)
79.8 (2028)
57.3 (1 455)
4 1.7 (12 .7)
gal (liter s)
gal (liters)
qua rts (liters)
qua rts (liters) 2
3 .8 (90 .0)
2. 4 (9 .0)
5.1 ( 4.8)
13 .2 (12. 5)
•
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Tec hn ica l da ta