2008 AUDI S8 Owners Manual

General information -
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vehicle identification number of your vehic le (perforation) as well as
th e G ross Veh icle Weight Ra ting (GVWR) an d the Gross A xle We ig ht
R ating (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 . 308 MMI di spl ay:
Vehicle ID number
!V IN}
You can also displa y th e Vehi cle Id ent ifi cati on Numbe r of
yo ur vehi cle in MM I.
- Press th e
( CARI fun ctio n bu tton.
- Selec t
Systems in the CA R me nu.
- Selec t
Vehicle ID number (VIN) . The Vehicle ID number
(VIN)
menu appea rs => fig. 3 08 . •
Controls and equip­
ment Safety first Vehicle operation
Weights
Gross Vehicle Weight Rating
The G ross Ve hicle W eig ht Rat ing (GVWR), a nd the Gross A xle W eight
Rating (GAWR) for front and rear are listed on a stic ker on the left
doo r jamb .
T he G ross Ve hicle We ig ht Rat ing includes t he weig ht o f the bas ic
vehic le plus full fue l tank, oil and coo lant, p lus maximum load,
w hi ch includes passe nge r we ight (1 50 lbs/68 kg per des ig nated
seat ing position) and luggage weight .
Gross Axle Weight Rating
The Gross Axle Weight Rating is the maximum load that can be ap plied at eac h axle o f th e
ve hicle~ &.
Vehicle capacity weight
The ve hicle capacity weig ht (m ax. load) is listed either on the
d river's side B -pillar or inside the fuel fi ller flap .
Roof weight
The max im um p erm issib le roo f weight i s 220 lb (100 kg ). The ro of
we ight is made up o f the we ight of the roof rack system and th e
we igh t of the o bjec t being
tr anspo rted ~ page 10 4, "Lo ad in g the
roo f rac k".
& WARNING
• The actual Gross Axle Weight Rating at the front and rear axles
should not exceed the permissible weights , and their combination
must not e xceed the Gross Vehicle Weight Rating .
• Exceeding permissible weight ratings can result in vehicle
damage , accidents and personal injury .
Vehicle care Do-it-yourself service Technical data

llffl __ G_ e_n_ e_ r_
a _l _i_n _f _o _ r_ m_ a_ t_ i_ o _ n ________________________________________________ _
0 Note
• The ve hicle capacity weight figures apply when the load is
distributed evenly in the vehic le (passengers and luggage) . When
tra nsporting a heavy load in the luggage compartment, carry the
load as near to the rear ax le as possible so that the vehic le's
h a ndl ing is not impaired .
• Do not exceed the maximum permissib le a xle loads or the
max imum gross veh ic le we ight. Always remember t hat the ve hicle's
handling wil l be affected by the extra load. Therefore, adjust your
speed accord ingly .
• Always observe local regulations .•
Dimensions
The specifications refer to the basic mode l. Differences may occur
depend ing on t he mode l ty pe a nd options or dere d, fo r exam ple, t ire
sizes.
0 Note
When driving up steep ramps, on rough roads, over curbs, etc. it is imp ortant to remem ber tha t som e parts o f you r ve hicle, such as
spoilers or exhaust system components, may be c lose to the
ground. Be carefu l n ot to damage t hem .•

General information -
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Controls and equip­ment Safety first
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ D_ a_ ta ______________________________________________________ _
Data
Applies to vehicles: with 8 -cylinder engine and all wheel drive
350 hp, a-cylinder engine, with all wheel drive
Engin e da ta
Max imum output SAE net
Maximum torque SAE net
No . of cy linders
Disp lacement
Stroke
Bore
Compress ion ratio
Fuel
Dimension s (appro x.)
Length (with licence plate bracket)
Width (across mirro rs)
He ight (un loaded)
T urning circle diameter (curb to curb)
Capa citie s (a pprox.)
Fuel t ank
-Total capacity
- Reserve (of total capacity)
Wind shi eld and h eadlight wa sh er fluid contain er
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 AKII Recommended fo r maximum engine per formance . Fur ­
ther
details ::::;, page 307, "Gasoline"
in (mm)
in (mm)
in (mm)
ft. (ml
A8 = 199.3 (5062)
AB = 79 .8 (2028)
A8 = 56.9 ( 1444)
AB = 41.0 (12.5)
gal (liters)
gal (liters)
quarts (liters)
quarts (liters)
A8 L = 204 .4 (5 192)
AB L = 79 .8 (2028)
A8 L = 57.3 (1455)
A8L =41.7(12.7)
23.8 (90.0)
2.4 (9 .0)
5.1 (4.8)
9.3
(8.8) •

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App lies to veh ic les: w it h 12-cy linder eng ine and a ll whee l dr ive, lon g wheel base (LW B)
450 hp, 12-cylinder engine, with all wheel drive, long wheel base
En gin e data
Maximum output SAE net
Maximum torque SAE net
No. of cy linders
Displacement
Stroke Bore
Compression ratio Fuel
Dim ension s (appro x.)
Lengt h (wi th lice nce p late bracket)
Width (ac ross mirrors)
Height (unloaded)
Turning circle diameter (curb to cu rb)
Ca pac itie s (a pprox.>
Fuel tank
-Total capac ity
-Reserve (of total capacity)
Windshield and headlight washer fluid container
Engine oil
with fi lte r change hp@rpm
lb-ft@ rpm
CID (cm
3l
in (mm)
in (mm) 450@ 6200
428 @ 4000-4700
12 cy linder
366 (5998)
3 .55 (90 .2)
3 .3 1 (84 .0)
1 1.0 : 1
Premium unleaded (91 AKI! Recommended for maximum engine performance . Fur ­
t her
de tails => page 301, "Gasoline"
i n ( mm)
in (mm)
in (mm)
ft. (ml 20
4.4 (5192)
79.8 (2028)
57 .3 (1455)
41.7 (12 .7)
gal (liters)
gal (liters)
quarts (liters)
quarts (liters ) 2
3 .8 (90 .0)
2 .4 (9 .0)
5.1 ( 4.8)
13 .2 (1 2 .5)
•
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

___ C_ o_n_ s_ u_m _ e_ r_ ln_ f_
o _r _m _ a_ t_ i_o _n ______________________________________________ _
Consumer Information
Warranty coverages
Yo ur Au di i s cov ered b y the foll owing war ra ntie s:
• 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 warrant ies can be found in
your
W arr anty & Maint enan ce booklet .•
Operating your vehicle outside the
U.S.A. or Canada
Government regu lations in the United States and Canada require
t hat auto mobiles meet specif ic em ission regulations and safety
standards . Therefore, vehic les bui lt for the U .S .A . and Canada differ
from vehicles sold in ot her countries .
If you plan to take your vehic le outside the continental limits of the
United States or Canada, there is the possibi lity that
• unleaded fue ls for vehicles w ith cata lyt ic converter may not be
available;
• f uel m ay have a considerably lower octane rat ing . Improper fuel
may cause engine damage;
• service may be inadequate due to lack of proper service fac ilities,
tools or testing equipment;
• replacement parts may not be readi ly avai lable . •
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
Aud i cann ot be responsible for mec hanica l damage that could
result from inadequate fuel, service or parts avai lability .•
Audi Service Repair Manuals and
Literature
Audi Officia l Factory Service Manuals ar e pub lished as soon as
possible after model introduction . Service manua ls a re availab le
from :
Audi Technical Literature Ordering Center
Call tol l-free:
Tel. : 1 (800) 544-802 1
(from 8 :00 AM to 8 :00 PM, EST, Monday through Friday)
or access their webs ite
www .audi .dd sltd .com on the Internet to
order repair manua ls and ot her Audi literature .•
Maintenance
General
You r ve hicle has been des igned to help keep mainte nance requ ire ­
ments to a minimum. However, a certain amount of regu lar mainte ­
n ance is sti ll necessary to assure yo ur veh ic le's safety, economy and
.,,.

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_ o_ n
_ s_u _ m_ e_ r_l_ n _f_o _ r_ m_ a_ t
_ i
_ o _ n
__ l'III
re liabi lity . For detailed vehicle maintenance consult your Warranty &
Maintenance book le t.
Und er diff icult oper ating conditi ons, for example at extreme ly low
outside temperatures, in very dusty regions, when towing a trailer
very frequently, etc ., some serv ice work shou ld be performed
between the intervals specified. This applies particu lar ly to :
• oil changes, and
• cleaning or replacing the air filter.
c£> For the sake of the environment
By regularly maintaining your vehicle, you help make sure that emis ­
sion s tandards are maintained, thus minimizing adverse e ffec ts on
the environment. •
Important considerations for you and your
vehicle
The increasing use of electronics, sophisticated fue l injection and
emission contro l systems, and the genera lly increasing techn ica l
complexity of today's automobiles, have steadily reduced the scope
of maintenance and repairs which can be carr ied out by veh ic le
owners.
Also , safet y and env ironmental concerns p lace very strict
l im its on the nature of repairs a nd adjustmen ts t o engine and trans ­
mission parts which an owner can perform.
Maintenance, adjustments and repairs usually require special tools,
testing devices and other equipment availab le to spec ia lly trained
workshop personne l in order to assure proper performance, reli ­
abil ity and sa fety of the vehicle a nd its many systems.
I mproper maintenance, adjustments and repairs can impair the
operat ion a nd rel iabil ity of your vehicle and even vo id your vehicle
warranty. Therefore , proof of servicing in accordance with the main ­
t enance sched ule may be a cond ition fo r uphold ing a p ossi ble
warranty claim made within the warranty period.
Controls and equip­ ment Safety first Vehicle operation
Above all, operational safety can be adverse
ly affected, creating
unnecessary risks for you a nd yo ur passengers .
If in doubt about any servicing, have it done by your authorized Audi
dea ler or any other properly equipped and qualified workshop. We
strongly urge you to give your authorized Audi dea ler the opportu ­
nity to perform all scheduled maintenance and necessary repairs.
Your dealer has the fac ilities, origina l parts and trained spec ialists
to keep your vehic le running proper ly.
P e rforming limited maintenan ce yourself
The following pages describe a limited number of procedures which
ca n be performed on your vehicle with ord inary tools, should the
need arise and trained personne l be unavailab le. Before performing
any of these procedures, a lways t hor oughly read all o f the app li­
cable text and carefu lly fo llow the instruct ions given. Always rigor ­
ously observe t he
WARNINGS provided .
Before you che ck anything in the engine comp artment , alwa ys re ad
and heed all
WARNING S=> & and => & in "Working in the engine
compartment" on
page 307.
& WARNING
• Serious personal injury may occur a s a result of imprope rly
performed maintenance , adju stments or repair s.
• Always be e xtremely careful when working on the vehi cle .
Always follow commonly accepted safety practice s and general
c ommon sen se . Ne ver risk per sonal injur y.
• Do not attempt any of the maintenance , checks or repairs
de scribed on the following pages if you are not fully familiar with
these or other pro cedures with re spe ct to the vehicle , or are uncer ­
tain how to pro ceed .
• Do not do any work without the proper tools and equipment.
Have the ne ce ssary work done by your authorized Audi dealer or
another properly equipped and qualified workshop .
~
Vehicle care Do-it-yourself service Technical data

___ C_ o_n_ s_ u_m _ e_ r_ ln_ f_o _r_m _ a_ t_ i_o _n ______________________________________________ _
&, 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-