2008 AUDI S8 service indicator

Tires and wheels -
-----------------'
Tire service life
The service life of tires depends on a lot of different things
including proper installation and balancing, correct tire
pressure and driving style .
Tread Wear Ind icator (TWI)
Fig. 274 Tire tread:
tread wear indicators
(TWII
Fig . 275 Rotating tires
for more even wear
The origina l tires on your vehic le have 1/16 inch (1.6 mm) high "wear
indicators"::::, fig. 274 running across the tread. Depending on the
make, there will be six to eight of them evenly placed around the
tire. Marks on the tire sidewall (for example
"TWI" or other symbols)
indicate the positions of the tread wear indicators. Worn tires must
be rep laced. Different figures may apply in other
countries::::, &-
Tire pressure
Incorrect tire pressure causes premature wear and can cause
sudden tire blow-out. For this reason, tire pressure must be checked
at least once a
month ::::, page 331.
Driving style
Driving fast around curves, heavy accele ration and hard braking
increase tire wear .
Rotating tires for more even wear
For all four tires on your vehicle to have the same service life, we
recommend that the front and rear tires are rotated according to the
tire manufacturer's suggested tire rotation intervals. Please
remember the following:
• Tire rotation intervals may differ from the vehicle service inter­
vals outlined in your Warranty
& Maintenance booklet.
• The longer one tire is used in one location on the vehicle, the
more it wears at certain points; therefore, we recommend that you
follow the tire manufacturer 's suggested tire rotation intervals .
• Vehicles with front-wheel drive experience more tread wear on
the front wheels compared to all -wheel drive (quattro®l .
• Please rotate tires as shown
~ fig. 275.
• Extra care must be taken when rotating direction -specific tires
::::, page 357.
Wheel balancing
The wheels on new vehicles are balanced. However, various situa ­
tions during everyday driving can cause them to become unbal ­
anced, resu lting in vibrations you can usually feel through the
steering wheel.
Unbalanced wheels must be rebalanced to avoid excessive wear on
steering, suspension and tires. A whee l must also be rebalanced
when a new tire is insta lled.
...
Vehic le care I I Technical data

______________________________________________ A_ l.!. p _h_ a_ b_e _ t_i c_ a..:..l ...:.. in :..:..:. d:..:e :..: x_;__ _,n
Kne e airbags ...... ... .. .... ..... 234 ASR
Moni to ring .. ... .... .... ....... .. 229 How the Anti-S lip Regu la tion Sys tem
PASSENGER AIR BAG OFF ligh t .... . 230 works ...... ... .... .... .... .... 270
Repairs ........ .... .... ......... 232
Safety instructions ... .... ... .... . 231
Side airbags ... .. .... .... ... .... . 237
Side curtain air bags (SIDEGUARD) .. 240
Warning/indicator lights ...... .... .. 19
Weight -sens ing mat ...... ... .... . 2 44
When mu st the syst em be insp ected?
229
Aircra ft
T ransporting your v ehicle .. ........ 369
All W hee l Dr ive ...... .... ... .... .... 273
Alloy whee ls ... .... .... .... ... .... .. 293
A ll-whee l drive
W int er tir es . ..... .... ... ... . .... . 34 1
A lternator
See Ge ne ra tor . ....... ... .... .... . 18
An ti-free ze
See Engine coolan t ..... .... .... .. 314
An ti- lock brak e system
How th e ABS syst em works ....... . 272
Wa rning /indi cato r ligh ts .. .. .. .... .. 21
Anti -Sl ip Reg ulat io n System (ASR)
H ow the system works .... .... .... 270
Anti -theft systems
Anti -theft alarm system .. ... .... ... 61
E lectron ic immob ilizer . .... .... .... 49
Ashtray Fron t .. .... ... .. .... ...... .... .. 106 Aud
i Service Repa ir Manua ls and Literatu re
380
A UTO mode
AC climate con tro l .. .. .... .... .... 117
Auto Safety Hotline .... .... .... ... .. . 207
A ut o-C heck Con trol ...... .... ... .... .. 28
Automatic belt retracto r ... .. .... .... . 213
Automati c car wash
See Washing . .............. .... .. 289
A ut om atic Sh ift Loc k (ASU . ...... .... . 165
Automat ic transmission
6 -speed automat ic t rans missio n .... 163
Auto matic S hift Lock (ASU .... .... . 165
Dr iving . ...... .... .... .... .... ... 163
Dynamic sh ift p rogram .. ...... .... 166
Em ergency release fo r selecto r leve r 168
F a il- safe mode . ...... .... .... .... 168
I gnition key s afety lock . ...... .... . 130
K ick -down .... .... .... .... ... .... 166
Manual sh ift program ....... .... .. 167
S ele ctor le ve r ... ........... .... .. 164
Shift buttons ... .... .... .... .... . 168
S teering wheel w ith tiptronic . ...... 168
Average speed . ...... .... .... .... ... . 38
Avo id damaging the ve hicle .. ...... ... 279
B
Rear . ...... .. ...... .... ......... 107 Background lighting . ...... .... ... .. .. 76 Ba
ttery .... ... .. .... .... ...... .... . 318
Ba ttery location ins ide the luggage
compa rtmen t ... .... ... .... .... . 319
Chargi ng .. .... .... ... .... .... ... 321
Impo rtant wa rnings when working on the
battery .. .... .... ... .... ...... . 319
low ...... .... .... .... ... .... .... 274
Replaci ng t he battery .. ... .... ... . 3 22
State of cha rge . ...... .... .... ... . 27 4
Winter operat ion ..... .... .... .. . . 318
Wo rking on the batte ry . ....... ... . 319
Battery vo ltage .. .. .. .... .... .... ..... 35
B efo re driving ... .... .... ...... .... . 199
Blended gasoline ... .. .... .... .... ... 30 1
Body cavity sealing ........ .... .... .. 294
Boos ter seat ... .. .... .... ... .... .... 251
How do I properly install a booster seat in my veh ic le? . .... .... ... .... .... 251
Safety instructions .. ...... .... ... . 251
Brake flu id
Changing the brake fluid ...... .... . 318
Check ing the brake fluid leve l .... .. 317
What is the co rrect brake fluid leve l? 317
What s hould I do i f th e brake fluid warning
l ight com es on? . .... .... .... .... 317
Brake system Ant i- lock brake sys tem .... .... .... . 21
B rake assis ta nt .... .... ... .... .... 272
Brake booster .. ... .... ... .... .... 271
Brake flu id . ... .... .... ... .... .... 317
Brake f luid specifications for ref ill and
replace men t . .... .... .... ...... . 318
Bra ke light de fective . .... . .... .. .. . 26
Brake pads . ...... .... ... .... .... 278
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

Alphab eti ca l ind ex I'll
----------------------------------------- -'---------
Climate controls ............. .... ... 114
Air distribution ... .... .... .... .... 120
Air outlets ..... .. .... .... .... .... 122
Air outlets (rear) .... ... .... .... ... 122
Air recirculation .. .... .... ... .... . 121
AUTO (standard setting) ...... .... . 117
Basic se ttings ... .. .... ... .... .... 1 26
Cen ter ai r vent . ....... ... .... .... 127
Contro ls ... .. .... .... ... .... .... 116
Defrosting/defogging ..... ... .... . 120
Description ... .... ....... .... .... 114
ECON operation .. .... .... ... .... . 126
Fan . .... .... .... .... .... ... .... . 120
Heated seats , front ... .... .... .... 118
in the rear ...... .... .... .... .... . 125
Key coded setting ... .... .... .... . 114
Rear c limate controls .... .... .... . 125
Rear seat operation .. .... .... .... . 127
Rec ircu lation mode (automatic) ... .. 126
Rec ommended set tin gs ...... .... . 11 4
Residual heat .. ...... .... .. . .... . 117
Set ting t he tempe rature ..... . .... . 117
SETUP . ......... .... .... ... .... . 126
Solar blower fan/solar roof .. ...... . 123
Solar operation ... ....... .... .... 127
Switching on and off .. .... ...... .. 117
Synchroni zation .. .... .... ... .... . 127
Using climate contro l economical ly . 123
Windshield defogger/defroster . .... 123
Clock . ...... .... .... .... ... .... .... . 13
Closing Power sunroo f .... .... ... .... .... . 66
Coat hooks . ... .... .... .... .... .... . 112
Co ld ti re inflati on pressure .. ...... ... 328
Controls and equip­
ment Safety first
Compartments in the door trim panels
. 111
Co mpar tmen ts in the rea r do ors ... .. .. 111
Consumer Information ... .... .... 207 , 380
Contacting N HTSA .. .. .. .... .... .... 207
Conven ie nce open featu re
Win dows ..... ... .... .... .... .... . 64
Convertib le chi ld safe ty seat .... .... .. 249
How do I properly ins ta ll a convertib le
child safety seat in my vehic le? . ... 249
Safety instructions . .... .... ....... 249
Convertible lock ing retractor
Act ivating .. ...... .... .... .... ... 255
Dea ctivati ng .. ... ... .... .... .... . 256
Using to secure a chi ld safety seat . 253,
255
Coo lant
See Engine coo lant
Cr uise control
3 14
Cha nging speed ...... .... .... .... 138
Presett ing your speed ... .. .... .... 138
Switching off .... .... .... .... .... 138
Switching on . .... .... .... ....... 137
Warning/indicator lights .. .... .... .. 21
See also Adaptive Cruis e Con trol .. .. 139
Cr uis ing ra nge . ...... .... .... .... ... . 38
Cupholder .. .. .. ...... ....... .... .. 105
Center conso le .. .. .... ..... .. .... 108
D
Damping
See Adaptive Air Suspension .. ..... 185
Data .... .... .... ... .... .... .... .... 378 Data recorder
....... .... ....... .... . 268
Date d isplay ...... .... ... .... .... .... 1 3
Daytime running lights ... .... .... .. 69, 70
def What does this mean when it appears in the trip odomete r disp lay? ... .. .... 14
Defective light bu lb warning .... .... ... 26
Defrosting/defogg ing the windows . ... 120
Defrosting/defogging windows .. ..... . 122
Determining correct load limit .... .... . 33 4
Digita l clock .. ...... .... .... .... .. . .. 13
Digita l speedometer . .... .... .... ... .. 25
Dimensions ...... .... ... .... .... ... 376
Dipstick Readi ng the dipstick proper ly .. ... . 311
Distance control system
See Adaptive Cruise Contro l ... .. ... 139
Doors Mechanica l chi ld safety lock .. ...... . 58
Power child safety lock . .... .... .... 58
P ower side door closer . ... .... .... . 53
Dr iver
See Seating posi tion ...... .... .... 200
Driver information display Driver information messages ... ... .. 29
Introduct ion .. ... .... .... .... .... . 24
Open door o r rear lid wa rn ing .. .... . 26
Outs ide temperature display .. ...... 25
Sound system disp lay ........ ... .. . 25
Driver Information System Digita l speedometer ... ... .... .... . 25
Driver 's seat .. .... .... ... .... .... .... 87
Vehicle operation Vehicle care Do-it-yourself service Technical data

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Proper disposal of drained engine oil ...
312,3 13
Recycling used engine oi l ...... .... 312
Un leaded fuel ..... .... ... .... .... 301
What should I do with an old battery?
322
EPC
See Electronic power control ........
18
ESP
See E lectronic stabi lization program
( E SP) ...........................
18
Event Data Recorder (EDR) ... .... .... . 268
Expans io n t ank ...... .... ... .... .... 315
F
Fan
Rad ia tor .. ...... .... .... ... .... .
317
Flat tire changing .. ... .... .... ... .. .. 45
Floor mats ... .. .... .... .... ... .... . 205
Fog lights
Front . ...... .... .... .... ..... .. ..
71
Rear .... ... .. .... .... ... .... .... . 71
Warning/indicator lights ...... .... .. 19
Fo lding master key with remote control .
47
Foot pedals ........................ 204
For the sake of the environment
Gaso line fumes and the enviro nment
303
Letting yo ur engine warm up . ...... 130
Reduc ing eng ine noise by ea rly
upshifting .. .... .... ............
12
Refuel ing .... .... ....... .... .... 303
Saving fuel by early upshifting .. .... 12
Using the rear w indow defogger .... 124
Controls and equip­ ment Safety first
Front airbags
Description ......... ...... .... ...
222
How they work .... .... .... ....... 227
F ront arm rest
adjusting .........................
93
Storage compartm ,ent .............. 93
Fr ont ash tray .. ...... .... .... .... ... 106
Front fog lights ..... .... .... .... .... . 71
Front seats ...... ...... ... .. .... .... . 86
Adjusting ....................... 201
Child restraints in the front seat . ... 220
Convenience side view ............. 91
Pockets ............. .... .... .... 11 0
Symmetrica l seat positions ......... 91
Fronta l collisions and the laws of phys ics
210
F uel
Additives ..... .... .... .... .......
301
Average consumption ...... .... .... 38
Blended gasoline .... ....... .... .. 301
Fuel filler neck ............. .... .. 302
Fuel gauge .. ....... .... .... .... .. 14
Gaso line .. .... ..... ...... .... ... 301
Gaso line additives .. ....... ....... 302
Instantaneous fuel consumption .. ... 38
Low fue l level sym bol ... .. .... .... . 35
Octane rating ... .. .... .... .... ... 301
Rec ommendat ion ... .... ... .. .... 301
Refuel ling .. ...... .... .... .... ... 303
Reserve ... ....... .... .... ....... . 14
Tank capacity ................. 14,378
Unlocking the fuel filler flap by hand 305
Fuse arrangement . ...... .... ..... .. . 358
G
Garage door opener (HomeLink®) ...... 191
Gas discharge lamps ...... .... .... ... 362
Gauges
Engine coolant temperature . ...... ..
12
Fuel gauge . ...... .... ... .... .... . 14
Speedomete r ..... .... ... .... ..... 14
Tac ho m eter . ... ... .... ... .... .... . 13
Trip odometer ... .. .... .... ...... .. 14
Gene ral il lustration
Instruments a nd controls ... .. .... ..
11
Generator
Warning/indicator lights ...... .... ..
18
G lossa ry of tire and loading te rmin ology . . .
325
Glove compartment ................. 109
cd changer ........... .... .... ...
109
Owner's Literature ................ 109
Gross Vehic le We ight Rating (GVWR) ...
375
H
Head restraints ....... ... .... .... ... 203
Adjusting ...... .... ... .... .... ... 203
Comfort head restraints ............ 91
Front seats ... .... .... .... .... .... 91
Rear seats .... .... .... ...... ... .. .
92
Headlight ra nge co ntrol ...... .... ... .. 36
Headlights .. .. .. .... .... ...... .... .. 69
Adaptive Light .................... 72
Defective .. ........... .... .... .... 26
Front fog l ig hts .................... 71
Vehicle operation Vehicle care Do-it-yourself service Technical data

_____________________________________________ .:..A ..:; l~ p :.:h.:.. a== b:.:e :.: t:.:.ic == a.:..l .:.. in :..:.:: d:.::e :.: x::..... _IIIII
Location ...... .... .... .... .... .. 258
Mounting and releasing the anchorage hook .......................... 262
Leather ............................ 296
Cleaning ........................ 297
Level adjustment
See Adaptive Air Suspension ....... 185
Lifting jack ... .... .... ... .. .... ..... 354
Lifting points .... ........ .... .... ... 369
Lifting vehicle ... ... .... ........... . 369
Light sensor defective ................ 36
Lights ........ .... .... .... .......... 69
Coming home ..................... 70
Daytime running lights ... .... .... .. 70
Emergency flashers ................ 73
Exterior lights ..... ....... ........ . 70
Front fog lights ...... .... ...... ... 71
Headlights .. ... ... .. .... .... .... . 69
High beam ... .... .... ..... .. .. 69, 73
H igh beam warning/indicator light ... 19
Leav ing home .. ...... .... ...... ... 70
Rear fog lights .................... 71
Side marker lights ................. 69
Turn signals .. .... .... .... .... .... 73
Xenon headlights ....... ... .. .... .. 69
Lo ading the luggage compartment . ... 205
Load ing the roof rack .... ....... .... . 104
Locking Pow er lock ing switch .... .... .... .. 53
Rear lid/trunk lid ...... ............ 55
Remote control .... .... .... .... ... 51
Using the key ..................... 52
Lower anchorage locator button ....... 258
Controls and equip­
ment Safety first
Lower
universal anchorage bars (Canada) ..
258
Lower universal anchorages (Canada) .. 258
Luggage Stowing .................. ....... 205
Luggage compartment
Cargo net .. ...... .... .... .... ... 101
DVD p layer for navigation system . .. 112
Side Compartment ............... 112
Side compartment ................ 113
Ski sack ......................... 102
Tie -down eyelets .. ........ ....... 100
See also Loading the luggage
compartment ...... .... ... .. .... 205
L umbar support .... ....... .... .... ... 90
M
Maintenance .......... .... .... .... . 380
Malfunction Indicator Lamp (MIU .... 20, 27
Massage function .... ........ ....... . 89
Master key ...... .... ......... ...... . 48
Mi leage
Average .......................... 38
Ins tantaneous ... ...... .... ... .. .. 38
Mirrors Automatic anti-g lare adjustment . .... 83
Automatic dimming for the outside mirrors .... ....... .... .... ... .. . 84
In terior mirror .... .... .... ....... . 83
Outside mirrors ................... 84
Recalling position of outside mirrors . 94
Storing position of outside mirrors .. . 94 Monitoring the Advanced Airbag System
229
N
Natural leather .... .... ... .. .... .... . 296
New tires and whee ls . .... .... .... ... 336
NHTSA Contacting ...................... 207
Number of seats ...... ... .. .... .... . 209
0
Occupant seat ing positions .. ... .. .... 200
Octane rating ...... .... .... .... .... . 301
Odometer ..... ...... .... ... .... ..... 14
Oil
See Engine oil .. ... .... ....... .... 309
Older children and safety belts .... .... 252
On -Board Diagnostic System (OBD)
Data Link Connector (DLC) ........ .. 28
Electron ic speed limiter . ...... ..... 28
Ma lfunction Indicator Lamp (MIU .... 27
Open door or rear lid warn ing ..... ..... 26
Opening Power sunroof .................... 66
Operate your vehicle economically and mini -
mize pol lution .... ... .... .... ... 279
Outside air pollution How to prevent from entering the vehicle
121
Outside mirrors .. .. .. .... ...... .... .. 84
Outside temperature display ........... 25
Vehicle operation Vehicle care Do-it-yourself service Technical data

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_ic _ a_l _in _ d_e _ x __ lll
T
Tachometer . .... .... .... ... .... .... . 13
Technical modifications ...... ...... .. 383
T emperature
Climate controls ...... .... ..... .. . 117
Setting for the driver's and front passen-
ger's side ... ...... .... ... .... .. 117
Tether strap ........................ 263
Securing the upper tether strap 264
The first 1,000 miles (1,500 km) and
afterwards .. .... .... ... .... .... 277
Tie -down eyelets ... .. .... ...... . 100, 207
Tips for the environment
Saving fuel ... .... .... ... .... .... 104
Using the air conditioner only when necessary ... .... ....... .... .... 123
ti ptron ic® . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Automatic Shift Lock (ASU ... .... .. 165
Driving .. .. .. .... .... ........... 163
Dynamic shift program . ...... ... .. 166
Fail -safe mode ... .... .... ...... .. 168
Kick -down ..... ...... .... ... .... . 166
Manual shift program ........ .... . 167
Se lector lever . .... .... ... .... .... 164
Tire pressure .. ... .. .... .... ...... .. 331
Tire pressure monitoring system ... .... 41
Displaying tire pressures . .... .... .. 43
Initialize wheels ... .... ... .... .... . 45
Learning process .................. 44
Loss of air pressure ............. 20, 42
Malfunctions .... .... .... .... .... . 45
Sensors ....... .. .... .... ...... .. 338
Controls and equip­ ment Safety first Stor
ing tire pressures ....... .... ... 44 Towing
Tires and wheels .. .... .... .... ... 338 Tow truck procedures .... .... .... . 366
Valves ..... .. .... .... .... .... ... 338
Towing hitch
Tire service life ........ .... ... .. .... 335
Audi parking system .............. 180
Tires ........ .... ... .... .... .... ... 324 Towing loop ..... .... .... ... .... .... 367
Replacing .. ...... .... ...... ... .. 338 front .... ... .. .... .... ...... ... .. 367
Service life . ........ .... ... .. .... 335 rear ............................ 368
speed rating letter code .. ... .. .... 338
Trailer towing . .... ... .... ...... ... .. 282
Tire manufacturing date ...... .... . 338
Operating instructions . ...... ... .. 283
Tire specifications ................ 337
Technical requirements ... .... 282, 283
Tread depth ........ ....... ...... 335
Trailer towing tips ................ 284
Uniform tire quality grading .... .... 340
Train
Winter tires ... .... .... .... .... ... 341
Transporting your vehicle .. .... .... 369
Tires and ve hicle load limits . ...... ... 333
Transmission
Tires and wheels
See Automatic transmission .. ...... 163
Checking tire pressure .... .... .... 331
Transport Canada . .... ... ........ ... 208
Cold tire inflation pressure .. .... ... 328
Dimensions ...................... 336 Transporting your vehicle
.... .... ... . 369
Tread Wear Indicator (TWI) ....... .... . 335
Genera l notes .................... 324
G lossary of tire and loading termino logy
325
New tires and whee ls .. .... .... ... 336
Replacing .... .... .... .... .... ... 337
Snow chains ........ .... ... .. .... 342 Trip computer
Fuel consumption .... .... .... .... . 38
Mi leage ... ........... .... .... .... 38
Sing le-trip memory .. ........ .... .. 39
Total-trip memory .. ...... ..... .. .. 39
Tire pressure monitoring system .... 338
Tires and vehicle load limits .. ...... 333
Wheel bolts .. ....... ...... .... ... 343 Trip
odometer ..... .. .... ....... ... .. 14
What does it mean when dEF appears in the trip odometer disp lay? ......... 14
Winter tires ......... ...... .... ... 341 Trunk
Tires/Wheels
See Rear lid ... .... .... ... .... .... . 55
Low aspect ratio tires . .... ........ 343 Trunk
escape handle .. .... ... .... .... 348
Tools ... .... .... ... .... .... .... .... 350 Turn signals
... .. .... .... .... ...... .. 73
Torn or frayed safety be lts .. .... .... .. 212 Warning/indicator
lights .. ........ .. 19
Touch-up paint . .... ... .... .... .... . 292
Vehicle operation Vehicle care Do-it-yourself service Technical data