AUDI S8 2009 Owners Manual

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Controls and equip­
ment Safety first
Vehicle operation Vehicle care Do-it-yourself service Tec hn ica l da ta

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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)
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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

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Consumer Information
Warranty coverages
Your A udi i s cov ered b y the follo wing war ra nt ies:
• New Vehicle Limited Warranty
• Limited Warranty Against Corrosion Perforation
• Emissions Control System Warranty
• Emissions Performance Warranty
• California Emissions Control Warranty (USA vehicles only)
• California Emissions Performance Warranty (USA vehicles only)
Detailed information rega rding your warranties can be found in
your Warr ant y
& Maint enan ce book let. •
Operating your vehicle outside the
U .S.A. or Canada
Government regulations in the United States and Canada require
that automobiles meet specific em ission regulations and safety
standards . Therefore, vehic les bui lt for the U .S .A. and Canada differ
from vehicles sold in other countries .
If you plan to take your vehic le outside the continental limits of the
United States or Canada, there is the possibility that
• unleaded fue ls for vehicles with catalyt ic converter may not be
available;
• f uel may have a considerably lower octane rating . Improper fuel
may cause engine damage;
• service may be inadequate due to lack of proper service facilities,
tools or testing equipment;
• replacement parts may not be readi ly available . •
Navigation systems for vehicles built for the U.S.A . and Canada
wil l not necessarily work in Europe, and may not work in other coun ­
tries outs ide North Amer ica.
0 Note
Audi cannot be responsible for mechanica l damage that could
result from inadequate fuel, service or parts avai lability .•
Audi Service Repair Manuals and
Literature
Audi Official Factory Service Manuals are published as soon as
possible after model introduction . Service manuals are availab le
from :
Audi Techni cal Literature Ordering Center
Ca ll tol l-free:
Tel. : 1 (800) 544-8021
(from 8 :00 AM to 8 :00 PM, EST, Monday through Friday)
or access their website www.audi .dd sltd .com on the Internet to
order repair manua ls and other Audi literature .•
Maintenance
G en eral
You r ve hicle has been designed to he lp keep maintenance requ ire ­
ments to a minimum. However, a certain amount of regu lar mainte ­
n ance is sti ll necessary to assure your vehicle's safety, economy and .,_

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re liabi lity . For detailed vehicle maintenance consult your Warranty &
M ain tena nce booklet .
Under diff icult operating condition s, for example at extreme ly low
outside temperatures, in very dusty regions, when towing a trai ler
very frequently, e tc ., som e serv ice work shou ld be p erfo rm ed
between the intervals specifie d. T his applies particu lar ly to:
• oil ch ang es, a nd
• cleaning or replacing the air filter.
<£> For the sake of the environment
By regularl y maintaining your vehicle, you help make su re that emis ­
s io n sta n da rds are ma intained, thus minimi zing a dvers e effe cts on
the environment. •
Important considerations for you and your
vehicle
The inc reasing use of elect ronics, sophisticated fue l injection and
e mi ssio n con tro l sy stems, a nd the gene ra lly i ncreas ing tec hn ica l
complexity of today's automobiles, have steadily reduced the scope
o f mai nte na nce a nd repairs wh ic h can be carr ied ou t by veh ic le
owners.
Also, safety and environmental concerns p lace very strict
l im it s o n the nat ure o f rep ai rs a nd adju stmen ts to engine a nd tra ns­
m ission parts which an owner can perform.
M aintena nce, adj ust m ent s and repairs u sua lly require special t ool s,
t est ing dev ices and o ther equipment ava ilab le to sp ecia lly trained
workshop personne l in order to assure p rope r performance, reli ­
ab ilit y and sa fety o f the vehicle a nd its many sys tems.
I mproper maintenance, adjustments and repairs can impair the
ope ra ti on a nd reliabil ity o f your vehi cle a nd even vo id your ve hicle
warranty. Therefore, proof of servicing in accordance with the main ­
t e nance sch ed ule may be a con diti on for upholding a poss ibl e
warranty claim made within the warranty period.
Controls and equip­ ment Safety first Vehicle operation
Above a
ll, operational safe ty can be adverse ly affected, creating
u nn ece ssary risks for you a nd your passenge rs .
I f in doubt about any servicing, have it done by your authorized Audi
dea ler or any other properly equipped and qualified workshop. We
str on gly ur ge you to g ive your au thorized Au di dea ler t he o pportu ­
nity to perform al l scheduled maintenance and necessary repairs.
Your dealer has t he facil ities, origina l pa rts and tra ined spec ialis ts
to keep your vehic le running proper ly.
Performing limited maintenance yourself
The fo llowing pages descr ibe a limited numbe r of procedu res wh ic h
ca n be perf ormed o n you r vehicle wi th ord ina ry tools, sho uld the
need arise and trained personne l be unavailab le. Befo re performing
any of t hese proc edures, a lways thor oug hly read all of the ap pli­
cable text and carefu lly fo llow the instruct ions given. Always rigor ­
ously observe the
WARNINGS provid ed .
Before you check anything in the engine compartment , al ways read
and heed all WARNINGS~
& and~ & in "Working in the engine
compa rtme nt" on
page 309.
& WARNING
• Serious personal injury may occur as a result of improperly
performed maintenance , adjustments or repairs .
• Always be extremely careful when working on the veh icle .
Always follow commonly accepted safety practices and general c ommon sense . Never risk personal injury .
• Do not attempt any of the maintenance, checks or repairs
descr ibed on the following pages if you are not fully fam iliar with
these or other procedures with respect to the vehicle , or are uncer ­
tain how to pro ceed .
• Do not do any work without the proper tools and equipment.
Have the necessary work done by your authorized Audi dealer or
another properly equipped and qualified workshop . _,.
Vehicle care Do-it-yourself service Tec hn ica l da ta

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& WARN ING (continued )
• The engine compartment of any motor vehicle is a potentially
hazardous area . Never rea ch into the area around or to uch the
radiator fan . It is temperature controlled and can sw itch 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 tempe rature 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 collap se
causing serious personal injury .
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the veh icle is on level ground , that
the wheels are always securely blocked and that the engine
cannot be sta rted .
• Always make sure the tr ansmission selector lever (automatic
transmission) is in "P" (Park position ) and the p ark brake is firmly
applied.
W For the sake of the environment
• Cha ng ing the e ngin e sett ings will a dverse ly aff ect em iss ion
levels. This is detrimenta l to the environment and increases fuel
co nsump tion .
• Always observe environmenta l regu lations when disposing of
o ld eng ine oil, u sed bra ke flu id, d irty eng ine coo la nt, spent batter ies
or worn out tires.
• Undeployed airbag modul es and pretensioners might be classi ­
fied as Perchlorate Material -specia l handling may apply, see
www .d tsc.ca .gov/ hazardouswaste/pe rc h lora te . W hen t he vehicle or
parts of the restraint s ystem including airbag modules safety be lts
with pre tensio ners are sc ra p pe d, a ll ap pl ica ble laws and reg ula- tions must be observed. Your authorized Audi dea
ler is familiar with
t hese requi reme nts and we reco mmend th at you h ave your dealer
perform th is serv ice for you. •
Additional accessories,
modifications and parts replacement
Additional accessories and parts
replacement
A lways consult an author ized Audi dea ler before
pur chasin g access orie s.
Y our vehicle incorporates the latest safety design featu res ensuring
a hi gh standa rd of active a nd passive sa fety .
T his saf ety could be com promised by non -approved changes to th e
vehic le . Fo r thi s reason, i f parts have to be replaced, p lease obse rve
th e fo llow ing po ints wh en insta lling add it io na l acc essories:
Approved Audi accessories and genuine Audi parts are avai lable
from autho rized Audi dea lers .
T hese dealers also have the necessary faci lities, tools and trained
spec ia lists to ins tal l the part s and accessorie s prope rly.
& WARNING
Using the wrong spare parts or using non -approved accessories
can cause serious personal injury.
• Use only accessorie s 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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& WA RNIN G (continu ed )
ment zone s. Do ing so will in creas e the risk of injur y if airb ags are
trig ger ed in an accident!
• Before you che ck anyth ing in the engine comp artme nt, a lwa ys
re ad and heed all WARNIN GS=>
page 301 .
0 Note
• If items other than ge nuine Audi spare parts, add -on equ ipment
and accessory items are used or if repair work is not performed
according to specified methods, this can resu lt in severe damage to
your vehicle's engine and body (such as corrosion) and adverse ly
affect your vehicle's war ranty.
• T he innovative a luminium concept of your Audi A8 means that all
servicing, repairs or other work on the vehic le body mus t be carried
out exc lusively by an Audi workshop.
• I f emergency repairs must be performed e lsewhere, have the
vehicle examined by an authorized Audi dealer as soon as possible.
• The manufacturer cannot be held liable for damage which occurs
due to failure to comply with these stipu lations. •
Technical Modifications
Our guidelines must be complied with when technical
modifications are made.
A lways c onsult an authorized Audi dealer before starting work on
any modifications.
T his will he lp ensure that vehicle function, performance and safety
are no t impa ired =>& .
Attempting to work on electronic components and the software used with them can cause malfunctio ns. Because o f the way elec ­
tronic components are interconnected with each other, such
malfunctions can also have an adverse affect on other systems that
Controls and equip­ ment Safety first Vehicle operation
are not directly involved.
This means that you risk both a substantial
reduction in the operat ional safety of your vehicle and an increased
wear of vehicle parts => & .
Authorized Audi dealers wi ll perform this work in a professional and
competent manner or, in special cases, refer you to a pro fess ional
company that specializes in such modifications.
& WARNING
Improper repair s and modifications c an change the way vehicle
s y stems work and cau se seriou s per sonal injury .
0 Note
If emergency repairs must be perfor med e lsewhere, have the
vehic le examined by an authorized Audi dea ler as soon as
possible. •
Declaration of Compliance ,
Telecommunication or Electronic Systems
Ra dio Fre quency Devices and R adio comm unic ation
E quipment User Manual N otic e.
The manufacturer is not responsible for any radio or TV interference
caused by unauthorized modificat io n s to this equi pment .
Device s
The followi ng devices each comp ly w ith FCC Part 15 .19, FCC 15.21
and RSS-Gen Issue 1:
• Adaptive C ruise Contro l
• Convenience key
• Aud i side assist
• Cell phone package
• Electronic immobilizer
Vehicle care Do-it-yourself service Tec hn ica l da ta

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• Home link® universal remote control
• Remote contro l key
• Tire pressure monitoring system *
FCC Part 15.19
This device complies with part 15 of the FCC Rules . Operation is
subject to the fo llowing two conditions :
(1 l This device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC Part 15 .21
CAUTION:
Changes or modifications not expressly approved by the party
responsible for compliance could void the user's authority to
operate the equipment .
RSS-Gen Issue 1
Operation is subject to the following two conditions:
(1 l this device may not cause interference, and
(2) this device must accept any interference, including interference
that may cause undesired operation of the device.•

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Controls and equip­
ment Safety first
Vehicle operation Vehicle care Do-it-yourself service Tec hn ica l da ta