2015 AUDI S8 winter tires

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or ridges on the road, particularly if the tire is underinflated .
I n o rder to m inim ize the occu rrence of impact
damage to the t ires of your veh icle, we recom ­
mend that you observe the following precau­
tions:
- Always maintain recommended inflat ion
pressures. Chec k your tire pressure every
2,000 miles (3,000
km) and add air if neces­
sary.
- Drive carefu lly on roads with potholes, deep
gullies or ridges. The impact from driving
through or over such obstacles can damage
your tires. Impact with a curb may a lso
cause damage to your tires.
- After any impact, immediately inspect your
tires or have them inspected by the nearest
authorized Aud i dealer. Replace a damaged
t ire as soon as possible .
- Inspect your t ires every 2,000 miles (3,000
km) for damage and wear. Damage is not al­
ways easy to see. Damage can lead to loss of
air and underinflation, wh ich could eventu­
ally cause tire failure. If you be lieve that a
t ir e may have been damaged, replace the
t ire as soon as possible.
- T hese tires may wea r mo re qui ck ly than ot h­
ers.
- Please a lso remember that, whi le these tires
deliver respons ive handling, they may ride
l ess comfortably and make mo re noise than
othe r choices.
Reduced performance in winter /cold
season condition s
All tires are des igned for certa in pu rposes.
The low aspect ratio, ultra high performance
tires originally installed on your veh icle are in­
tended for maximum dry and wet road per­
formance and handling. They are not suitable
for cold, snowy or icy weather condit ions.
If
you dr ive under those circumstances, you
should equip your veh icle with all-season or
winter t ires, which offer better traction under
those cond itions. We suggest you use the rec­
ommended snow or all-season tires specified
for your ve hicl e, or their equ iva lent.
Tire s an d wheel s 263
Refer to q page 260 for more detailed infor­
mation regard ing winter tires.
Tire pressure
monitoring system
ill General notes
Each tire, incl uding the spare ( if provided),
shou ld be checked monthly when co ld and in­
flated to the inflation pressure recommended by the veh icle manufacturer on the veh icle
placard or tire inf lation pressure label. (If your
vehicle has tires of a different size than the s ize indicated on the vehicle placard or tire in­
flat io n pressure labe l, you shou ld determ ine
t h e p rope r tir e inflation p ressu re fo r those
ti res).
As an added safety feature, your veh icle has
been equipped with a tire pressure mon itoring
system ( TPMS) that illum inates a low t ire
pressure te lltale whe n one or more o f you r
tires is significant ly under-inflated . According­
ly, when the low tire pressure te lltale illumi­
nates, you should stop and check your tires as
soon as possib le, and inflate them to the
proper pressure. Driving on a sign ificantly un­
der- inflated tire causes the tire to overheat
and can lead to tire fa ilure. Under-inflation al ­
so reduces fuel eff ic iency and tire tread life,
and may affect the vehicle 's hand ling and
stopp ing ability.
Please note that the TPMS is not a substitute
for proper tire ma intenance, and it is the driv­
er's respons ibility to maintain co rrect tire
pressure, even if under-inflation has not
reached the leve l to tr igger illuminat ion of the
T PMS low tire pressu re tellta le .
Your vehicle has also been equipped with a
T PMS ma lfu nction ind icator to ind icate when
the sys tem is not operating properly. The
T PMS ma lfunction indicator is combined with
the low tire pressure te lltale. When the sys ­
tem detects a malfunction, the telltale will
flash for approximate ly one minute and then ..,.
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A WARNING ,~
- If the tire pressure indicator appears in
the instrument cluster display, one or
more of your tires is significantly under­
inflated. Reduce your speed immediately
and avoid any hard steering or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures. In­
flate the tire pressure to the proper pres­
sure as indicated on the vehicle's tire
pressure label¢
page 249. Driving on a
signif icantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also is likely to impair the vehicle's handling and stop­
ping ability .
- The driver is responsible for maintaining the correct tire pressures. You must check the tire pressures regularly.
- Under certain conditions (such as a spor­
ty driving style, winter conditions or un­ paved roads), the pressure monitor indi­
cator may be delayed.
-Ask your authorized Audi dealer if run­
flat tires may be used on your vehicle.
.
(0 Tips
- The tire pressure monitoring system may
stop working when there is an ESC mal­
function.
- Using snow chains may result in a system
malfunction .
- The tire pressure monitoring system on your Audi was developed using tires with
the "AO" or "RO" identification on the
tire sidewall
¢page 256. We recom­
mend using these tires.
Reset tire pressure monitoring system
If the tire pressure is adjusted, wheels are ro­
tated or changed, the TPMS must be reset via
MMI.
.,. Before storing the new tire pressures, check
that the current pressures on all four tires
correspond to the specified values and
Tires and wheels 265
adapt the pressures to the current load
¢page 249 .
.,. Switch on the ignition.
.,. Select in the MMI:
ICARI function button >
Car systems control button > Servicing &
checks > Tire pressure monitoring > Store
tire pressures > Yes, store now.
(D Tips
Do not store the tire pressure if there are
snow chains on the tire. Otherwise, a sys ­
tem malfunction may occur .
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A
A/C (automatic climate control) .... .. .. 79
ABS
refer to Anti-lock braking system .. .. . 197
Accessories .. ................. .. ... 292
Active lane ass ist ............ .... .. . 101
Activating and deactivating ... .. .. .. . 102
C leaning the camera area . ... .. .. ... 215
Descr ipt ion ..... ...... ... .. .. ..... 101
Instrument cluster indicator light .... 102 Messages . . . . . . . . . . . . . . . . . . . . . . . . 102
Notes on instrument cluster display .. . 102
Sett ing the steering wheel vibrat ion .. . 103
Adaptive air s uspension/sport . ....... . 108
Adapt ive cru ise control ...... .. .. .. .. .. 9 2
C lean ing t he senso r ....... .. .. .. .. . 215
M essages . ... .... .... ... .. .. .. .... 99
Request for driver intervention . ... .. .. 97
Stop-and-go traffic . . . . . . . . . . . . . . . . . 96
Adapt ive Lig ht (defective) ... .. .. .. .. .. 2 2
AdBlue .... .. ................. .. ... 225
F illing . .. ... ...... ............. .. 226
Messages in the instrument cluster dis-
p lay . .... .. .......... ... .... .. .. . 225
Adding Eng ine coolant ........... .. .. .. ... 237
Eng ine oil ............ .... ... ... .. 234
W indshield was her fluid . ...... ... .. 244
Addit ives
Eng ine oil .. ............. .... .. ... 234
Ad justable s teer ing colum n .. .. .. .. .. .. 82
Adjusting Air dist ribution (automatic climate con-
trol) . .. .. .. .. .. ........... .. .. .... 80
Fr ont se ats . . . . . . . . . . . . . . . . . . . . . . . . 58
I ns trumen t illum ina tion ... .. .. .. .. .. 51
Steer ing colum n ....... ... .. .. .. .. .. 82
Temperature (automatic climate control) 80
A irbag system ............. .... 15 1, 170
Advan ced Airbag System . .. .. .. .. .. . 155
Advanced Airbag Sys tem components . 15 8
Ca re ... .. .. .. ... .. ..... ... .. .. ... 164
C hildren ... .... .. .... ... .. .. .. ... 175
Chil d restraints . ... .... ... .. .. .... . 176
Components (front airbags) .. .. .. .. . 158
Danger of fitting a child seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . 153
Inde x 295
Disposa l .. .. .... .. . .. .. ..... ... .. 164
Front airbags . . . . . . . . . . . . . . . . 155, 156
•
How do the front airbags work? . ... .. 160 •
How many a irbags does my vehicle
have? ...... .. .. .... ............. 158
How the Advanced Airbag System com -
ponents work togethe r ... .. ... ... .. 159
Impo rtant safety instructions on the
k nee a irbag sys tem . ........... .... 168
Impo rtant t hings to know ....... .. .. 151
K nee a irbags ... .. .. .. .. ...... ... .. 166
Monitoring . ..... ... .. .. ..... ... .. 161
PASSE NGER AIR BAG OF F light ... .. .. 162
Repa irs ... .. .. .. ................. 164
Safety instructions ................. 164
S ide a irbags . .. .. .... ............. 168
S ide curtain airbags . ............... 171
Warning/ind icator lights ... .... ... .. . 18
Wa rning/Indicato r lights ....... .. .. 161
Weigh t-sensing mat ........... .... 175
When must the sys tem be inspec ted? 161
A ircraft
T ranspo rting your vehicle 285
Alcantara Cleaning .. .. .. .. ............... .. 217
A ll Wheel Drive .. .. .... ............. 202
Winter tires ... .... . ... ...... ... .. 260
Alternato r
refer to Generator ............. .... . 16
Amb ience lighting . ................. . 50
Anti -freeze
refer to Engine coolant . ..... ... .. .. 236
An ti- lock b raking system ............ . 197
Warning/ind icator lights . . . . . . . . . 18, 19
Anti-slip regu lation .. ........... .... 197
Warning/ind icator lights .. .. ... ... .. . 18
Anti-theft systems Electronic immob ilizer ....... ... .. .. . 32
ASR
refer to A nt i-slip regula tion ..... .. .. 197
Audi braking guard
refer to Braking gua rd .. .. .. ... ... .. . 92
A udi drive select
refer to Drive se lect ............ .. .. 108
Audi Se rv ice Repair Manuals and Lit era-
ture .. ... .. .. .. .... . ... ...... ... .. 290

296 Index
AUTO Automatic cl imat e control . ... ... ... .. 79
Automatic headlights ....... .. .... . . 46
Auto Lock 33
Automatic belt retractor . . . . . . . . . . . . . 146
Automatic climate control Air vents ... ................ ..... .. 80
Automatic recirculation .............. 81
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 79
Se tup . .. .. .. . .......... .. .. .... .. 81
Automatic climate control system synchronizing ................ .... .. 80
Automatic t ransmission ... .. .. .. .. .. . 114
Automatic transmission (tiptronic)
Eme rgency mode .............. .... 118
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . 117
Manual shifting ........... ... .. ... 117
Parking lock emergency release . .... . 119
Selector lever posit ions ............. 114
Automatic wipers . . . . . . . . . . . . . . . . . . . . 53
Auto Safety Hotline ................ . 141
Average consumption ........... .. .. .. 25
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Avoid damaging the vehicle ...... .... . 207
B
Batt ery . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Charging . ............... .. .. .... . 242
I mportant warnings ....... ... .. .. . 241
Loc ation ... ................ ..... . 241
low .. ... .................. ..... . 202
Replacing the battery ..... .. .. .. .. . 243
State of charge ........... .. .. .... . 202
Winter operation .................. 240
Working on the battery ............. 241
Before driving .............. ... .... . 133
Blended gasoline ........ .. .. .. .. .. . 220
Blower (automatic climate control) . . . . . . 80
Boost er seats .............. ... .... . 182
Brake assist : Post-collision ..... .. .. .. . 198
Brake fluid Changing the brake flui d ... .. .. .. .. . 239
Checking the brake fluid level . .. ..... 239
What is the correct brake fluid level? .. 239
What should I do if the brake fluid warn-
ing light comes on? ............... . 239 Brake system
Anti- lock braking system ............. 19
Brake assist system ................ 197
Brake booster ..................... 200
Brake fluid .... .. ............. .... 239
Brake fluid specifications for refill and re -
placement .. .. .. .. ..... ........ .. 239
Brake light defective . . . . . . . . . . . . . . . . 22
Brake pads .. .. . .. ............ .. .. 205
El ec tromechanical parking brake ...... 85
Fluid reservoir ... ................. 239
How does moisture or road salt affect the
brakes? ......... .. .............. . 199
Warning/indicator lights ........ .... . 14
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard Messages ..... .. .. .............. .. 99
Braking guard ..... ................ .. 92
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Break-in period .. .. ............. .. .. 205
Brake pads .. .. .. ...... .... .... ... 205
Tires 205
Bu lbs ..... ..... .. .. .............. . 280
C
California Proposition 65 Warning ... .. 229
Battery specific . . . . . . . . . . . . . . . . . . . 242
Capacities .. .. .. .. ............. .. .. 288
Engine oil ..... ... .............. .. 231
Carbon parts
Cleaning .................... 216,217
Car carrier Transporting your vehicle ........... 285
Care ... .. .. .. .. .. ............. .. .. 214
Cargo are a
refer to Luggage compartment ...... .
Catalytic converter
Center armrest 139
206
Cockpit ... .... .. ............. .... . 61
Rear
Central locking .. .................. . .
Emergency locking .......... ..... .. . 68
33
37
Certification .... .. ............. .... 293
Changi ng a wheel .. ... .......... .. .. 269
Ch . . 'l
angmg engine
01 ....••....•..... • 235

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Sliding/tilting sunroof
Emergency closing ................ ..
44
Emergency operation ......... ... .. .. 45
Opening and closing ...... .... .. .... 43
Panoramic sunroof ........ .. .. .. .. ..
44
Snow chains ................. ... ... 261
Sockets . . . . . . . . . . . . . . . . . . . . . . . . 68, 74
Solar operation (automatic climate con -
trol) .. .. ... . .... ............. .. .. .. 81
Sources of information about child re-
straints and their use .......... ... .. . 193
Space-saving spare tire ......... .... .. 268
Spare tire
refer to Compact spare tire . .. .. .. .. . 268
Spare wheel ....................... 269
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 26
Speed rating letter code ..... .. .. .. .. . 257
Speed warning system ...... .. .. .. .. .. 90
Sport differential ............. .... .. 108
Indicator light . . . . . . . . . . . . . . . . . . . . . 23
Start-Stop-System . . . . . . . . . . . . . . . . . . . 87
Engine does not switched off . .. .. .. .. 88
Engine starts automatically .. .. .. .. .. 88
Indicator lights . . . . . . . . . . . . . . . . . . . . 88
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 89
Starting/stopping the engine ... . ... .. 88
switching off/on .......... .. .. .. .. .. 89
START ENGINE STOP button . .. .. .. .. .. 83
Starting from rest . . . . . . . . . . . . . . . . . . . . 86
Start ing off with a trailer .... .. .. .. .. .. 87
Starting the engine 83
Steering
refer to Electromechanical power assist 201
Steering wheel Adjusting steering column ..... ... ... 82
Easy entry feature ........ .. .. .. .. .. 82
I ndicator light . . . . . . . . . . . . . . . . 17,201
Shift paddles ............ .. .. .. .. . 117
Steering wheel heating ....... ... .. .. 81
Steps for determining correct load limit . 254
Stopping the engine . . . . . . . . . . . . . . . . . . 83
Storage ... .. ................. .. .... 74
Sunroof ... ... ............. ...... ... 43
Sun shades Emergency closing (roof) .............
45
Panoramic sunroof ........ .. .. .. .. .. 45 Rear
doors . ..... .. ................ 52
Rear window ... .... ................ 52
Sun visors .. .. .. .. ................. . 51
Symbols
refer to Warning/Indicator lights . .. .. . 11
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 11, 23
T ail lights
Cleaning ...... .. .. ............... 215
TOI clean diesel
refer to Ad Blue ... .. . ... ...... ... .. 225
Technical data . .. .. ................. 287
Technical modifications .............. 293
Temperature display ..... ....... .... .. 23
Tether anchors .. .. .. ............... 191
Tether strap .. .. .. ................. 191
Textiles Cleaning ......... ................ 217
The first 1,000 miles (1,500 km) and after-
wards .... .. .. .. .. .. ............... 205
Tie-downs 70,140
Tips for the environment
Saving fuel ....... ...... ........... 73
tiptronic (automatic transmission) ..... 114
Tire pressure .. .. .. ................ .
Tire pressure monitoring system ..... . .
Loss of air pressure ............... .
Malfunction ... .. .. . .. .... ....... .
Tires
......... .. ...... .............
Service life .. .. .. ............... ..
speed rating letter code ........ ... .
Tire manufacturing date . .......... .
Tire specifications ..... ....... .... .
Tread depth ...... ............... .
Uniform tire quality grading ..... .. . .
Winter tires
. .. ...... ........... ..
Tires and vehicle load limits . .. .... ... .
Tires and wheels Checking tire pressure ............. .
Cold tire inflation pressure ........ . .
Dimensions
.. .. ...... .............
General notes .. .. .. . .. .... ....... .
Glossary of tire and loading terminolo-
gy ...... ... .. .... .......... .... . 251
263
264
264
245
255
257
257
257
255
259
260
253
251
249
256
245
246
Low aspect ratio tires ........... .... 262
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Wheel bolts
Torq ue ... .. .. .. .. .. .... ... .. .. ...
262
W heels ... .. ................. .. ... 2 4 5
Chec king tire pressu re ..... .. .. .. .. . 25 1
Cleaning . .. .. ........... .. .. .. ... 215
Cold ti re inflat ion pressu re ... .. .. .. . 249
General notes . . . . . . . . . . . . . . . . . . . . . 245
Glossary of tir e and loading termino lo-
gy .. .. .. .. ................. .. .. .
246
New tires and wheels ...... .. .. .. .. . 256
Tires and vehicle load limits .. .. ... .. 253
When must a safety belt be rep laced? .. 146
W hen must the airbag syste m be inspect-
ed? ... .. .. .. .... ............. .. .. .
16 1
When shou ld I adjust the tire pressures? 252
When shou ld I check the tire pressures? . 25 2
Where are lower anchorages located? .. . 188
Where can I find the tire pressures for my
car? .. .... .. .. ............. .. .. ...
251
W hy safety be lts? . . . . . . . . . . . . . . 143, 1 44
W ild a nimal detection .......... ... .. 11 1
Windows
C leaning/remov ing ice ..... .. .. .. .. .
216
defrosting .. ............. .... .. .... 80
W indshield
C leaning ... .. .... .... ... .. .. .. ....
53
defrosting .. ............. .... .. .. .. 80
W indshield washe r system .. .. .. .. .. .. 5 3
Washer fluid leve l . . . . . . . . . . . . . . . . . . 2 2
Washer rese rvoir . ..... ... .. .. .. .. . 244
W indshield w ipe rs
C lea ning . .. ............. .... .. .. ..
54
Fo lding up . . . . . . . . . . . . . . . . . . . . . . . . 54
Indicator ligh t . . . . . . . . . . . . . . . . . . . . . 22
Replacing w indshield wiper blades ... .. 54
Sw itching on/off . . . . . . . . . . . . . . . . . . . 53
W inte r operation
Ba ttery . . . . . . . . . . . . . . . . . . . . . . . . . .
240
Ca r washes . ............. .... .. .. . 2 14
Cooling system . ... .... ... .. .. .. ... 236
Defrosting windows . . . . . . . . . . . . . . . . . 80
Removing ice from windows . ... .. .. . 216
Seat heating . . . . . . . . . . . . . . . . . . . . . . . 80
Steer ing whee l heating .... .. .. .. .. .. 81
T ires .. .. .. .. ........ ... .. ... ... . 202
Winter ti res . ... .... .... ... .. .. .. ... 260
All-whee l drive . ... .... ... .. .. .. ... 260
Inde x 307
X •
Xenon-Lights . ........ .. .. ..... ... .. 2 80 •
Xenon plus headl ights ... .. ... ..... .. . 46