check engine light AUDI S8 2015 Owner's Manual

244 Checking and filling
@ For the sake of the environment
Because of the problem of proper disposa l
of a battery, we recommend your author­
ized Audi dealer change the battery for
you. Batter ies contain sulfuric acid and
lead and must always be disposed of prop­
erly in compliance w ith all environmental
regu lations . D isposing of vehicle batteries
improperly is very dangerous to the envi­ ronmen t.
Windshield/headlight
washer container
Fig. 207 Engine compartment: cover on the windshield
was her flui d reservo ir
The washer fluid container is marked with the
symbol~ on its cap
c::> fig. 207, c::> page 230 .
.. Before you check anyth ing in the engine
compartment,
always read and heed all
WARNINGS c::> A in Working in the engine
compartment on page 228 .
.. lift the filler cap tongue to add washer flu­
id . You can fill the container to the top .
.. Press the cap back onto the filler neck after
filling the container.
You can find the reservoir
capacity in the table
in
c::>page 288.
Clean water should be used when filling up. If
possible, use soft water to prevent scaling on
washer jets. Always add a glass cleaner solu­
tion (with frost protection in the winter).
(D Note
Do not mix engine coolant antifreeze or
any other additives to fill up the wind­
shield washer reservoir.

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

,....,
N ,....,
N
0 J:
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
------------------------------~I~ n~ d~ e~x~ 297
Checking
Engin e coolant leve l .... ... .. .. .. .. . 237
r ,re pressure . ... ...... ... .. .. .. .. . 25 1
Ch ild restra ints
Danger o f using ch ild restra ints in the
front seat .. .... .. .... ... .. .. .. ... 153
Where can I get additional information
about child restraints and their use? .. 193
Ch ild restra int system anchors . .. .. .. . 187
Ch ild sa fety .. ............. .... .. ... 174
Convertible locking retractor . . . . . . . . . 184
Guidance fixtures for lower anchorages 189
I mportant safety instructions fo r us ing
child safety seats ......... .. .. .. .. . 177
I mportan t th ings to know when dr iv ing
with chi ldren ... .. .... ... .. .. .. ... 174
Tether anchors
Tether straps
Ch ild safety loc k 191
191
Rear doors (mechan ic al ) ... .. .. .. .. .. 4 1
Rear doors (power) .... ... .. .. .. .. .. 41
Ch ild safety seat
Unused safety belts on the rea r seat . . 179
Ch ild safety seats .......... .... .. .. .
180
Booster seats . . . . . . . . . . . . . . . . . . . . . 182
Convertible ch ild seats ........... .. 181
Convertible locking retractor .. .. .. .. . 184
H ow do I properly install a child safety
seat in my vehicle? ........ .. .. .. .. . 177
I nfant seats . . . . . . . . . . . . . . . . . . . . . . 180
I ns tall ing .. ... .. ..... ... .. .. .. ... 184
Instal ling a chi ld restraint using the
L ATCH system ..... .... ... .. .. .. ... 190
LATCH system ............ .... .. .. . 190
Lower anchorages ........ .. .. .. .. .
Mounting and releasing the anchorage
hook
. . ' . ... ................... . '
188
190
Safety instructions . ..... .. .. .. .. .. . 177
Cleaning 214
Climate con trols . . . . . . . . . . . . . . . . . . . . . 78
Climate control system Supp lementary heater .......... .... . 81
Clock ..... .. .. .. .. .. .... ... .. .. .... 27
C losing
Panorami c sun roof ........ .. .. .. .. .. 44
Sliding/ tilting sun roof .. ... .. .. .. .. .. 43
Sun shade (panoramic sunroof) ... .. .. 45 Co
ld tire inflation pressure ..... ... .. .. 249
Coming home Compact spare tire 48
268
Compartments . . . . . . . . . . . . . . . . . . . . . . 7 4
Compass in the m irror .............. .. S6
Compliance ... .. .... . ... ...... ... .. 293
Consumer Information . . . . . . . . . . 141, 290
Consumption (fuel) ............. .... . 25
Contacting NHT5A
Controls Cleaning
Convenience key . .. ................. . 141
216 35
Starting the engine ................ . 83
Stopping the eng ine (START ENGIN E
STOP button) . . . . . . . . . . . . . . . . . . . . . . 83
Switching the ignition on ............ 83
Un locking and lock ing vehi cle .... .. .. . 35
Convertible child safety seats ....... .. 181
Convertib le locking retractor
Activating ... .... .. . .. .. ..... ... .. 186
Deactivating ..... .. . .. ... .... ... .. 186
Using to secure a child safety seat 1.84, 186
Coolant
refer to E ng ine coolant . ..... ... .. .. 236
Cooler ....... .. .... .......... ...... 76
Cleaning 217
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 76
Cooling mode (automat ic climate control) 79
Cruise contro l
Changing speed ..... .. ..... ... .. .. . 91
Presett ing your speed .......... .... . 91
Switching off .. .. .... .... ....... .. . 91
Switching on . .. .. ...... ........... . 90
( upholder . ... .... .. . .. .. ..... ... .. . 74
Cu rve light ........ .. ..... .......... 108
Cylinder management
refer to Cylinder on demand System . . . 25
Cylinder on demand System ... ... .. .. . 25
D
Data recorde r
Date d isp lay 196
27
Daytime runn ing lights . .. ..... ... .. .. . 46
Decla rat io n of compliance
Adaptive cruise cont rol .... ..... .. .. 293
A udi s ide ass ist .. .. ........... .... 293
•
•

,....,
N ,....,
N
0 J:
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Index 299
-----------------------------------.......
Emergency warning triangle ... .. .. .. . 266
Energy management ................ 202
Engine Compartment ..................... 230
Coolant .. ............... ......... 236
Data .. .. ..... ........... ...... .. 289
Start-Stop-System . . . . . . . . . . . . . . . . . . 87
start ing .. .. ................. .. .. .. 83
Starting wi th jumper cab les ......... 281
S topping . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Eng ine compartment ................ 230
C losing the hood ................ .. 229
Opening the hood ............ .. ... 228
Safety in structions .......... .. .. ... 228
Wo rking in the engine compa rtment .. 22 8
Eng ine coolant ..................... 236
Adding coolant ............ ...... .. 237
Checking the eng ine coolant leve l ... .. 237
E xpansion ta nk .................... 237
M alf unc tion symbo l ................. 15
Radiato r fan . ..... .... ... .. .. .. ... 238
Temperature ga uge .... ... .. .. .. .. .. 10
E ng ine oil . .. ..... ........ ...... .. . 23 1
Adding . ... ................ ... .. . 234
Addit ives . .. ................. .. .. . 234
Changing . ... ... ..... ... .. .. .. ... 235
C hecking oil level . ..... ... .. .. .. .. . 234
C hec king the engine oil level . ... .. .. . 233
Consumpt ion .................. ... 234
Indications and condit ions requ iring ex-
tra check ing ...................... 233
Indicator light . . . . . . . . . . . . . . . . . . . . . 17
O il consumption .... ... ... .. .. .. .. . 233
O il grades .. ................. .. ... 23 1
P ressu re malfunction ................ 17
Recommended oil check in tervals .. ... 233
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specification and viscosity . ... .. .. .. . 23 1
E ng ine sound ............. .... .. .. . 108
Eng ine speed limitat io n ............... 21
E ng ine start -stop mode
refer to Sta rt-Stop -Sys tem ... .. .. .. .. 89
E ntry assistance . . . . . . . . . . . . . . . . . . . . . 64
Environment Break- in period ............... .. ... 205
Catalytic converter ............... .. 206
D iese l part icu late filter ............. 206
Di sposing of yo ur vehicle batte ry 2 43 Driving at high speeds
.. ..... ... .. .. 208
Drivi ng to minimize poll ution and noise 207
Fuel . ... .. .. .. .. .. . .. ... .... ... .. 223
Fuel economy ..................... 207
Leaks under your vehicle ............ 228
Letting the vehicle stand and warm up . 208
Proper disposal of dra ined brake fl uid . 239
Proper disposal of d ra in ed eng ine cool-
an t ............................. 237
P roper disposal of dra ined eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 234, 235
Recycling used engine oil ..... ... .. .. 234
U nl eaded fuel .. .. .. . ... ...... ... .. 220
What shou ld I do with an o ld battery? . 243
E PC
refer to Elect ron ic power control (EPC) . 20
ESC Post-coll is ion b ra ke assist .......... . 198
also refer to Electronic Stab ili zation Con-
t ro l (E SC) ... .. ................... 197
Event Data Recorder (EDR) ............ 196
Exhaust tail pipes Cleaning . ... .... .. . .. .. ..... ... .. 216
E xpansion tank .. ... ................ 237
Exterior lighting ..................... 46
Exterior mi rrors
Adjusting ... .... .. . .. .. ..... ... .. . 55
Dimming ...... ................... . 56
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
E xterior tempera ture display ........... 23
F
Fastening
B oos ter sea ts .. ................... 182
Convertib le child sa fety seats . ... .. .. 18 1
Infant seats ... .... . ... ...... ... .. 180
Floor mats .. ... .... ........... ..... 139
Fo lding table .... .................... 69
Foot ped als . .... ................... 138
For the sake of the environment
Gasoline fumes and the env ironment .. 223
Reduc ing engine nois e by ea rly upshift-
i ng ............................... 10
Ref uell ing ... .. ................... 22 3
Saving f uel by early upsh ifting ... .. .. . 10
Four zone automat ic climate control ..... 79
•
•

,....,
N ,....,
N
0 J:
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
-----------------------------~I~n~d~e~x 305
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
•
•