height AUDI S8 2010 Owner's Manual

___ T_ i_ r _e _s_ a_n_ d_ w_ h_ e_e_ l_ s _______________________________________________ _
Inco rrect wheel al ignment
Incorrect wheel alignment can cause excessive tire wear, impairing
the safety of the vehicle . If tires show excessive wear, have the wheel
alignment checked by an authorized Audi dealer or qualified wo rk­
shop .
All Wheel Drive
Vehicles with quattro ® must always have tires of the same s ize,
constr uction and tread type . For details see~
page 257.
& WARNING
Sudden tire failure c an lead to loss of control , a cra sh and seriou s
personal injur y!
• Never drive a vehicle when the tread on any tire i s worn down
to the wear ind icators .
• Worn tire s are a s afety hazard, they do not grip w ell on wet
roads and increa se your risk of "h ydroplaning" and lo ss of control.
• Always keep chemical s that can cause tir e damage, su ch as
grea se , oil , gasoline and brake flu id away from tires .
• Tires age even if they ar e not b eing used and can fail suddenly ,
especially at high speeds. Tires that are more than 6 year s old can
only be used in an emergency and then with special care and at
lower speeds .
• Never mount u sed tir es on your vehicle if you are not sure of
their "previous history. " Old used tires m ay have been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and loss of vehicle control. •
New tires and replacing tires and wheels
New tires and wheels have to be broken in.
Fig. 256 Tire specifica tion cod es on t he sidewall of a tire
No.
©
@
®
©
©
©
Descript ion
Passenger car tire (where applicable)
Nom inal width of tire in mi llimeters
Ratio of height to width (aspect ratio)
Radial
Rim diameter code
Load index and speed rating

________________________________________________ T_i_re _ s_ a _ n_d_ w_ h_ e_ e_l_s __ _
0
-
©
®
@
-
@
U.S . DOT tire identification number
Audi Original tire
Sever snow conditions
Tire ply composition and materials used
Treadwear, traction and temperature grades Ma ximum perm issible inflation pressure
The tires and rims are essential parts of the vehicle's design . The tires
and rims approved by Audi are specially matched to the characteris­
tics of the vehicle and can make a major contribution to good road
holding and safe handling when in good condition and properly
inflated =>
&.
We recommend that all work on tires and wheels be performed by an
authorized Audi dealer. They are familiar with recommended proce­
dures and have the necessary special tools and spare parts as well as
the proper facilities for disposing of the old tires.
Authorized Audi dealers have the necessary information about tech­
nical requirements for installing or changing tires and rims.
Replacing tires and wheels
Tires should be replaced at least in pairs and not individually (for
example both front tires or both rear tires together).
Be sure to read and heed the information to the tire pressure moni­
toring system* =>
page 320.
Always buy replacement radial tires that have the same specifications
as the tires approved for your vehicle by Audi. Replacement tires must
always have the same load rating specification as the original equip­
ment or approved optional tires listed in the table=>
page 310.
Audi-approved specification tires are specially matched to your
vehicle and its load limits, and can contribute to the important road-
Safety first
holding, driving characteristics, and safety of the vehicle. The table
(=>
page 310) lists specifications of the tires approved for the Audi
models covered by your Owner's Literature.
The tire pressure label located either on driver's side B-pillar or inside
the fuel filler flap (=>
page 310, fig. 253) lists the specifications of
the original equipment tires installed on your vehicle at the time it
was manufactured.
Federal law requires tire manufacturers to place standardized infor­
mation on the sidewall of all tires=>
page 318, fig. 256. This infor­
mation identifies and describes the fundamental characteristics, the
quality grade of the tire and also provides a tire identification number
for safety standard certification and in case of a recall.
Tire specifications
Knowledge of tire specifications makes it easier to choose the correct
tires. Radial tires have the tire specifications marked on the sidewall,
for example:
255/45 R 18 99 H
This contains the following information:
P Indicates the tire is for passenger cars (where applicable)
255 Nominal tire width in mm of the tire from sidewall edge to side-
wall edge. In general, the larger the number, the wider the tire
45 Height/width ratio in percent (aspect ratio)
R Tire construction: Radial
18 Rim diameter code (in inches)
99 Load rating code
H Speed rating letter code
XL (or "xl", "EXTRA LOAD" or "RF") indicates that the tire is a "Rein­
forced" or an "Extra Load" tire
M+S (or "M/5") Indicates that the tire has some mud and snow capa­
bility
The tires could also have the information of direction of rotation
=>
page 306 .
Vehicle care Technical data

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

Alphabetical index -________________ fWI
Rear fog lights ..... ....... ... .. .. .. .. 62
Rear lid Automatic operation .............. . 48
Escape handle ... .. .............. 332
Opening and closing .. .. ........... 46
Opening manually ....... .. .... .. .. 47
Rear light
Defective ............... .... ... .. 24
Rear seat Controls .. .. ................. .. .. 87
Easy entry .... ...... .... .. .... .. .. 89
Head restraint adjustment .......... 88
Lumbar support . . . . . . . . . . . . . . . 86, 89
Massage function ....... .... .. .. .. 88
Seat adjustment ........ ....... ... 87
Setting in the MMI ............ ... .. 89
Rear view
See Rear-view camera .......... .. . 161
Rear window defogger .......... .. .. . 113
Rear window shelf .................... 86
Rear-v iew camera .. ...... ...... 161, 164
Park ing mode 1 .. ................ 166
Park ing mode 2 .. ................ 167
Red symbols .............. ...... .. .. 28
Refuelling ... .................. ... . 285
Release lever for hood ....... ... .. .. . 288
Remote control ... .... ... .. .. .... .... 40
Unlocking and locking ... .. .. ....... 43
Remote cont rol garage door opener
(Homelink ®) .......... .. .... .. . 181
Remote rear lid release ............... 46
Repair manua ls ............. ... ..... 361
Controls and equip­
ment Safety first
Repairs
Airbag system ................... 220
Replacing Wheel rims . ................. ... 320
Replacing a fuse . .. ............... .. 342
Replacing light bulbs ... .. .... .. .. ... 346
Replacing tires and wheels ............ 319
Reporting Safety Defects ........ ... .. 195
Reset button .. ...... ...... .......... 12
Retractor . ...... ........... ...... .. 201
Rims Cast alloy .. .. ... ... .. ... .... .... 275
Replacing ....... ... .. .. ..... .... 320
Roof rack . .... .. ........... .. .... .. . 92
Loading ..... ........... .. .. .. .. . 94
Mounting locations .... .. .......... 93
Roof weight ................. ... .. .. . 94
s
SAFE ................. ...... ... .. .. . 12
Safe driving habits .. .. ... .. .. .. .. ... 186
Safety belt height adjUJstment ......... 204
Safety belt position .. ...... ......... 202
Safety belt height adjustment .. .. .. 204
Safety belts worn by pregnant women ...
203
Safety belt pretensioner ........... ... 204
Service and disposal .............. 205
Safety belt warn ing light .. .... .. . 18, 197 Safety belts ......
... ... . .. .. .. .. .. . 201
cleaning ............ ... .. .. .. ... 281
Danger to passengers who do not wear a safety belt ......... ... .. .... ... 199
Fastening ....................... 201
Improperly worn . .. .............. 204
Not worn ................ .... .. . 199
Safety belt position .............. . 202
Safety instructions ... . .. .. .. .. .. . 200
Securing child safety seats ... ... .. . 241
Special considerations for pregnant women ...... ...... ... ... ... ... 203
Unfastening .......... .... .... ... 203
Warning/indicator light ...... .... . 197
Why YOU MUST wear them .. .... .. . 197
Worn properly ... ..... ... ... .. .. . 200
Safety compliance sticker ... . ......... 356
Safety equipment ...... ...... .... .. . 186
Safety features for occupant restraint and protection . .. .. .. .... .......... 186
Safety guidelines Seat adjustment .................. 76
Safety instructions
Engine compartment ..... ..... .. . 289
for side curtain airbags .. .......... 229
for using child safety seats ...... .. . 234
for using safety belts ...... .. .. .. . 200
Monitoring the Advanced Airbag System .
219
Safety lock Ignition key, automatic transmission 119
Seat adjustment Adjusting the seatback ............. 79 Driver 's seat .................. .. .. 76
Vehicle operation Vehicle care Do-it-yourself service Technical data