2010 AUDI S8 torque

Tires and wheels -_______________________________ f!:f'II
[I) Tips
Where snow cha ins a re mandatory on certain roads, this no rmally
also applies to vehicles with All W heel Dr ive .•
Wheel bolts
Wheel b olts must al ways be tig hten ed to the correct
torque.
Th e design of whee l bo lts is matc hed to the facto ry installed rims. If
different r ims are fitted, the correct wheel bolts wi th t he r igh t lengt h
and correctly s haped bolt heads must be used . Thi s ensures that
w heels are fi tted secure ly and tha t the br ake system f unc tion s
correctly.
I n cert ain circumst ances, yo u may not us e wheel bolts from a
different veh icle -even if it is the same model=>
page 363.
& WARNING
Improperly tightened or maintained wheel bolts can become
loose causing lo ss of control, a collision and serious per sonal
injury .
• Always keep the wheel bolts and the thread s in the wheel hub s
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 d riving 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 loo sen and come out when the
vehicle is moving. If the tightening torque is too high, th e wheel
Safety first
& WARNING (co ntinued )
bolts and threads can be damaged and the wheel can become
loose .
0 Note
The speci fied tor que f or th e wheel bolts is 90 ft lb (1 2 0 Nm) wi th a
tolerance of ± 7,4 ft lb( ± 10 Nm). Torque wheel bolts diagonally.
After ch anging a wheel, the to rque mu st be checked a s so on as
poss ible with a torque w rench -prefe rab ly by an authorized Aud i
dealer or qualified workshop. •
Low aspect ratio tires
Your Audi is fa cto ry -equ ip ped wi th low aspec t ratio tires. These tire s
have been thorough ly tested and been selected specifically for your
mode l for the ir supe rb perfo rmance, roa d fee l an d han dling un der a
var iety of driv ing cond it ions. Ask your author ized Audi dea ler for
more deta ils.
Th e low a spect rat io of these tires is indica ted by a nu meral of
55 or
less
in the tire's size designation. The numeral represents the ratio of
t he t ire's s idewall heigh t in relat io n t o its t re ad wi dth expressed in
percentage. Conventiona l tires have a height/width ratio of 60 or
more .
The performance of low -aspect -ratio tires is particularly sen sitive to
improper inflation pressure. It is therefore important that low
aspect ratio tires are inflated to the specified pressure and that the
inflation pressure is regularly checked and mainta ined. Tire pres­
s ure s should be checked at lea st once a month and always before a
long trip =>
page 313, "Checking tire pressure".
What you can do to avoid tire and rim damage
Low aspect ratio ti res can be damaged more easi ly by impact w ith
potholes, curbs, gull ies or ridges on the road, p articular ly if the tire is
underinflated. .,_
Vehicle care Technical data

-What do I do now? ..._ __________________________________________ _
& WARNING (conti nued)
Tra nsmissi on i n " P" ( Park) wi ll not preve nt th e vehicle from
m ov ing.
• Befor e you chan ge a wh eel, be s ure th e grou nd i s lev el and
firm . If n ece ssa ry , us e a s turdy board under th e j ack .
• Afte r in stalling the sp are whee l, make su re that you r eplace
the flat tire /wh ee l i n it s storage are a properly and t ight en th e
knu rled ret ain in g sc rew s ecu rely .
[ i J Tips
Before changing the wheel, you must activate the jacking mode, so
that the automatic contro ls for the Adaptive A ir Suspension do not
make it more difficult to
lift the vehicle with the jack=> page 179. •
Changing a wheel
When you change a wheel, follow the sequence described
below step-by-step and in exactly that order.
1. Activate the vehicle jacking mode==> page 179.
2 . Remove the decorati ve wheel cover* . For more details see
also ==>
page 33 7, "Decorative wheel covers" or
==>
page 337, "Wheels with wheel bolt caps".
3 . Loosen the
wh eel bolts ==> page 338.
4. L ocate the proper mounting point for the jack and align
the jack below that point==>
page 338 .
5. Lift the car with the jack==> page 338.
6. Remove the wheel with the flat tire and then install the
spare ==>
page 340.
7. Tighten all wheel bolts lightly . 8
.
Lower the vehicle with the jack.
9. Use the wheel bolt wrench and
firmly tighten all wheel
bolts==>
page 338.
10. Replace the decorative wheel cov er*.
11. Deactivate the vehicle jacking mode==> page 179.
& WARNING
A lw ays rea d and f ollow all W ARNING S and inf ormation => & in
" Rai sing th e vehicl e" on
page 33 8 and => pag e 341. •
After changing a wheel
A wheel change is not complete without the doing the
following .
-Store and secure the whe el you rep laced in the spare
wheel well.
- Replace the tools and the jack in their proper location.
- Check the
tire pre ssure on the spare wheel immediately
after mounting it .
- As soon as possible, have the
tighten ing torques on all
wheel bolts checked with a torque wrench . The correct
tightening torque is 90 ft lb (120 Nm).
- Have the flat tire
re placed as soon as possible .
[ i J Tips
• If you notice that the wheel bolts are corroded and diff icult to turn
wh ile chang ing a tire, they shou ld be rep laced before you check the
tightening torque. .,_

_____________________________________________ W __ h_a _ t_ d_o_ I_ d _ o_ n_o_ w_ ? _ ___.11111
• Drive at reduced speed until you have the tightening torques
checked. •
Applies to vehicles : with decorative wheel covers
Decorative wheel covers
The decorative wheel covers must be removed first to
access the wheel bolts.
R em ov ing
Fig. 269 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
d ecora tive whe el cov er ~ fig . 269 . •
Vehicle OP-eration
Applies to vehicles : with wheel bolts with caps
Wheels with wheel bolt caps
The caps must be removed first from the wheel bolts
before the bolts can be unscrewed.
Removing
F ig. 2 70 Ch angi ng a
wheel: removing the
wheel bolt c aps
- Push the plastic clip provided with the veh icle tool kit over
the wheel bolt cap until it engages .
- Pull on the
plastic cli p to remove the cap~ fig . 270.
Refitting
- Place the caps over the wheel bolts and push them back
on.
The caps are to protect and keep the wheel bolts clean.•
Vehicle care Do-it-yourself service iTechnical data

_______________________________________________ W __ h_a _ t_ d_o_ I_ d_o_ n_ o_w _ ? __ _
Tires with unidirectional tread design
Tires with unidirectional tread design must be mounted
w ith their tread pattern pointed in the right direction .
Using a spare tire w ith a tread pattern intended for
u se in a specific direction
When using a spare tire w ith a tread pattern intended for use in a
spec ific direction, please note the fo llow ing:
• The d irect ion of rotation is marked by an arrow on the side of the
tire.
• If the spare tire has to be installed in the incorrect direct ion, use
t he spare t ire only temporar ily since the tire w ill no t be ab le to
achieve its optimum pe rformance character istics with rega rd to
aquap lan ing, no ise and wear.
• We recommend that you pay particular attent ion to t his fact
during wet wea ther and that you adjust you r speed to match road
conditions .
• Rep lace the flat tire w it h a new one and have it ins talled on your
vehicle as soon as poss ible to resto re the handling advantages of a
unidirectio na l tire .•
Notes on wheel changing
Please read the in forma tion => page 318, "New t ires and replacing
tires and wheels" if you are going to use a spare t ire which is different
from the tires on yo ur vehi cle.
After you change a t ire:
• Check the tire pressure on the spare immediately after installa­
tion.
• Have the wheel bolt t ightening torque checked with a torque
wren ch as soon a s possible by your authorized Audi dealer or a qua l­
i fied serv ice stat ion.
Safety first • With steel and alloy wheel rims
, the wheel bolts are correctly
tightened at a torque of 90
ft lb (120 Nm ).
• If you notice that the wheel bolts are corroded and difficult to
turn while changing a tire, they should be replac ed before you check
the tightening torque.
• R epla ce the flat tire with a new one and have it install ed on your
vehicle as soon as possible. Remount the wheel cover.
Until then, drive with extra care and at reduced speed s.
& WARNING
• If you are going to equip your vehicle with tires or rims which
differ from those which were factory installed, then be sure to
read the information =>
page 318, "New tires and replacing tire s
and whe els ".
• Always make sure the damaged whe el or ev en a flat tire and
the jack and tool kit are prope rly secured in the luggage compart ·
ment and are not loo se in the pa ssenger compartment.
• In an accident or sudden maneu ver they could fly forward ,
injuring anyone in the vehicle .
• Always store dam aged wheel , jack and tools secu rely in the
luggage compartment. Otherwi se, in an accident or sudden
maneuver they could fly fo rward , caus ing inju ry to passengers in
the vehicle .
• Do not u se commercially available tire sealants . Otherwi se, the
electrical component s of the tire pre ssure monitoring system * will
no longer work properly and the sensor for the t ire pressure moni ·
toring sy stem* will have to be replaced b y a qualified work shop .•
Vehicle care Do-it-yourself service Technical data

___ D_ a_t _a _____________________________________________________ _
Data
Applie s to ve hicle s: with 8-cylin der en g ine a nd a ll whe el d riv e
350 hp , a-cylinder engine, with all wheel drive
Engine data
Max imum outpu t SAE net
Max imum torque SAE net
No. of cy linde rs
Displacement
Stroke
Bore
Compression rat io
Fu el
Dimensions (approx .)
Length (wi th license plate bracke t)
Width (ac ross mirro rs)
He ight (un loaded)
Turning circle d iameter (curb to curb)
Capacities (approx.)
Fuel tank
- Total capacity
- Reserve (of to tal c apaci ty)
Windshield and headlight washer fluid container
Engine oil
w ith filter change hp@rpm
lb-ft@
rpm
CI D (cm
3
)
in (mm)
in (mm) 350@ 6800
325 @3500
8 cylinde
r
2 54 (4163)
3.65 (92.8)
3 .33 (84 .5)
12.S: 1
Premium unleaded (91 AKI) R ecomm end ed for maximum engin e perf ormanc e. Fur ­
ther details ~
page 283, "Gasoline"
in (mm)
in (mm)
i n (mm)
ft. (m)
A8 = 199 .3 (5062)
A8 = 79 .8 (2028)
A8 = 56.9 (144 4)
A8 = 41.0 (12 .5)
gal (liters)
gal (li ters)
quarts (liters)
quarts (lite rs) A8 L
= 204.4 (5192)
A8 L
= 79 .8 (2028)
A8 L = 57.3 ( 145 5)
A8 L=41.7 (12.7)
23 .8 (90 .0)
2 .4 (9. 0)
5.1 (4 .8)
9.0 (8.5)
•

___ A_ l_. p_ h_a _b_ e_ t_ic _a_ l _ in_ d_e _ x ____________________________________________ _
u
Undercoating ...... ... ... ..... ..... 276
Unfastening safety be lts ............. 203
Unidi rect ional tires . .. .. .. .. .... ..... 306
Uniform tire quality grading . ........ . 322
Unlocking Power locking switch . ... .......... 45
Rear lid/trunk lid . ... .............. 46
Remote control . .. .. .. .. .... ...... 43
Using the key ........ .... .. .. .. .. . 44
V
Cruise control ... ... ...... .. .. .. . . 19 Wheel bolts
Electromechanical parking brake .... . 20 Torque .............. ... .. .. .. .. 32S
Electronic power control ........ .. .
16 Wheels . ... .. .. .. .. ........ ... .. .. 306
Electronic stabilization program (ESP) 16
Fog lights .... .... ............... 17
Generator .. .. .... ....... ...... .. 16
H igh beam ............... .. .. .. .. 17
Instrument cluster .... .... ........ 10
Malfunction Indicator Lamp (MIL) . ... 18
Rear fog lights ...... .... . .. .... .. 17
Safety belt ............... .. .. .. .. 18
Tire pressure monitoring system ..... 17
Turnsignals . .. .... ....... ...... .. 17
Wa rranty coverages .......... .. .. .. . 361 Cast alloy
....................... 27S
Checking tire pressure ............ 313
Cold tire inflation pressure .. .. . ... 310
General notes ....... .. .... .... .. 306
Glossary of tire and loading terminology .
307
New tires and wheels ...... ..... .. 318
Tires and vehicle load limits ...... . .
When must a safety be lt be replaced? .. 314
200
When must the airbag system be inspected? .
217
Vanity mirror 68 Washer reservoir
...... .... .... .. .. . 30S When should I adjust the tire pressures? 314
When should I check the tire pressures? 314
Where are lower anchorages located? .. 245
Where can I find the tire pressures for my car?
rear
.. ...... .......... .......... 70
Veh icle electr ical system .. .. .. ... ..... 16
Vehicle identification label ........... 356
Vehicle Identification Number (VIN) ... 356
Vehicle jack .............. .... .. 333, 338
Vehicle literature ................ ..... S
Vehicle transport ................ ... 353
Vehicle-care products ............ ... 270
Ventilated seats 107
vv
Warning/indicator lights .. .... ........ 14
Adaptive Air Suspension ............ 18
Adaptive Cruise Control ......... .. 13S
Airbag system ... ....... ....... ... 17
Anti-lock brake system (ABS) ........ 19
Brake system ............. ... .. .. . 20 Washing .
... .................... .. 270
Automati c car wash ....... .. ..... 2 71
by hand ....... .... .. .. .... .. ... 271
with a power washe r ............. . 272
313
Washing the vehicle ................. 270 Why safety belts? ........ . .. ... . 197, 198
Waxing ..................... ... .. . 273 Windows
Wear indicator .............. ...... . 317 Cleaning ........... .. .... .... .. 274
Weatherstrips . .. ........... ...... . 275 Convenience open feature ......... . 56
Weights .. ................. .. .... . 357 Defogging . .. .. .... ............. 109
What happens if you wear your safety belt too
loose? ............ ... ......... 202
What happens to unbelted occupants? . 199
What impairs dr iv ing safety? ......... . 187
What should I do after changing a wheel? .. .
314
What should I do after replacing wheels? 314 Defrosting .
.. .. ................. 109
Rapid defrosting/defogging ... .. ..
111
Windshield defogger/defroster
Windshield washer fluid 112
Low level ....... .. .. .. .. .. .. .. .. . 33
Windshield wipers Installing new wiper blades .... .. .. . 73
Intermittent wip ing ............... 70
One -tap wiping ................. .. 70