check engine AUDI S8 2009 Workshop Manual

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Weight-sensing mat .... .... . ... .. 246
When must the system be inspected?
231
Aircraft Transporting your vehicle .. .... .... 371
All Wheel Drive .. .... ....... .... .... 275
Alloy wheels ... .... .... .... ... .... .. 295
All -whee l drive
Winter tires .. ..... ... .... ..... .. . 343
A lternator
See Generator .... .... ... ..... ... . 18
Anti-freeze
See Engine coolant . ...... ..... .. . 316
Anti-lock brake system How the ABS system works . .... ... 274
Warning/indicator lights ... ... .... .. 21
Anti -Slip Regulation System (ASR)
How the system works ............ 272
An ti-t heft systems
Anti -theft ala rm system ...... .... .. 60
Electronic immob ilizer ... .. .... .... 49
Ashtray Front ... ...... ...... .... ..... ... 106
Rear .... ... .. .... .... ... .... .... 107
ASR How the Anti-Slip Regulation System works .. .... .... .... ... .... .... 272
Audi Service Repair Manua ls and Literature
382
AUTO mode AC climate con tro l .. .. .... ... .... . 1 17
Auto Safety Hotline . .... ........ .... . 209
Auto -Check Contro l .... ... .. .... .... .. 28
Controls and equip­
ment Safety first
Automatic belt
retractor ... .. ...... ... 215
Automatic car wash
See Washing ..... .... .... .... .... 291
Au tomatic Shift Lock (ASU .... .... .... 168
Automatic transmission 6-speed automatic transmission .... 166
Automatic Shift Lock (ASU .... ... .. 168
Driving ............. ............ . 166
Dynamic sh ift program .... ........ 169
Emergency release for selector lever 171
Fa il- safe mode . ...... .... .... .... 171
I gnition key safety lock . ...... .... . 130
Kick -d ow n .... .... .... .... ... .... 169
Manual shift program ... .. .... .... 170
Selector lever .... .... .... .... .... 1 67
Shift buttons ... .. .... .... .... ... 1 71
Steering wheel with tiptronic .. .... . 171
Average speed . ...... .... .... .... ... . 38
Avoid damaging the vehicle .. ..... ... . 28 1
B
Background ligh ting . .... ...... ... .... 76
Battery ... .. .... ... .... .... .... .... 320
Battery location inside the luggage compartment ...... .... ... .. .... 32 1
Charging ........................ 323
I mpo rta nt warn ings when work ing o n the
battery . .... .... .... ........ ... 32 1
low ............................. 276
Replacing the battery ....... .... .. 324
State of charge ... .... .... .... .... 276
Winter operation . .... .... .... .... 320
Working on the battery .... .... .... 321 Battery vo
ltage . ... .... .. .... .... .... . 36
Before driving ... .... .... ..... .. .... 201
Blended gasoline . .... .... .... ...... . 303
Body cavity sealing .. .... .... .... ... . 296
Boos ter seat ... .. .... .... ... .... .... 253
How do I properly insta ll a b ooster sea t in
my vehic le? ............... ..... 253
Safety instructions .... .......... .. 253
Brake fluid Changing the brake fluid ... .... .... 320
Checking the brake fluid level .. ... . 319
What is the correct brake fluid level? 319
What should I do if the brake f luid warning
light comes on? ... .. .... .... .... 319
Brake system Ant i-lock brake system . ..... .. .... . 21
Brake assistant .... .... .... ....... 27 4
Brake booster ..... .... ... .... .... 274
Brake fluid .... .... .... ... .... .... 319
Brake f luid specificat ions for re fill and
replacement . .... .... .... ...... . 320
Brake light defective ... ...... ...... 26
Brake pads ....... .... .... .... ... 280
Electromechanica l parking brake .... 134
Fluid reservoir .. ...... ..... .. .... 319
How does m oisture or road salt affec t the
brakes? . .... .... .... ....... .... 272
Malfunction ............ ... .. ..... 30
Warning/indicator lights .... .... .... 22
Worn brake pads symbol ........... 34
Break -in period .. .... .... .... .... ... 279
Brake pads ... .... .... .... ...... . 280
Tires . .... .... .... .... ... .... .... 279
Bu lbs . ... .... .... .... ... .... ...... . 36 4
Vehicle operation Vehicle care Do-it-yourself service Technical data

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Bumper cover
Caution when parking near a parking bar -
rier or curb ...... ... .... .. .. ...
135
C
Ca lifornia Proposition 65 Warning ..... 310
Battery specific . . . . . . . . . . . . . . . . . . 323
Capac1t1es .. .... .... .... .... ... .... 380
Car care . ... ... ...... ....... .... ... 290
Int erior .. ... ... .. ... ... .. ...... . 297
Plastic and vinyl .. ............... 294
Weatherstrips ..... .. .. .. ...... .. 295
Car carrier
Transporting your vehicle ........ .
371
Care of exterior ...... ............... 290
Cargo a rea
See Loading the luggage compartmen t ..
207
Cargonet .... .... .... ....... ...... . 101
Catalytic conv erter . . . . . . . . . . . . . . . . . . 280
Centra l locking
Emergency locking .... .... .. . .... .
54
Certification . . . . . . . . . . . . . . . . . . . . . . . 385
Changing a flat tire ...... .... .... .... 45
Changing a wheel . ... .... .... ...... . 353
Chang ing engine oil .. .... .... .... ... 315
Chassis
Undercoating . . . . . . . . . . . . . . . . . . . .
296
See also Adaptive Air Suspension . . . 188
CHECK button . . . . . . . . . . . . . . . . . . . . . . . 15
Ch ecking
Engine coolant level .. .. ........ ..
317
Checking tire pressure ... .... .. .. .. .. 333
Child restraints
Danger of using child restraints in the
front seat . ......... .... ... .. ...
222
What types of chi ld restraint anchors are
available? .... .... .... .... .... ..
258
Wher e can I get add itional informat ion
about child restraints? ... .. .. ....
259
Child safety .. .... ..... .. .... ... 245, 250
Additiona l information . .... ....... 264
Booster sea t ........ ........ .... . 253
Convertible chi ld safety seat .... ... 251
Convertible locking retractor ... .... 255
Guidance fixtures for lower anchorages
261
Important safety instructions for using
chi ld safety seats .. . ............
248
Important things to know when driving
with children ....... .... ... .. ...
245
Infant seat . ... ...... ......... ... 250
Installing a child restraint using the
LATCH system ............ ... ...
263
Lower anchorages ........... .... . 260
Mounting and releasing the anchorage
hook .. ...... ............. .....
264
Older children and safety belts 254
Saf ety bel ts and ol dler children ... .. 254
Teth er anchors ...... ........ ... . 264
Te th er s trap ... ...... .. ...... .... 265
Which restraint system should my older
child wear? ....... ... ..........
254
Child safety lock
Rear doors (mecha nical) ...... ... ...
57
Rea r doors (powe r) . . . . . . . . . . . . . . . . 58
Child safety seat ...... .... .... ..... . 250
Conver tible locking retractor .... ... 255
How do I properly ins ta ll a child safe ty
seat in my vehicle? .. ...... ......
248
Installing .. .. .. .... .... ... .... ... 255
LATCH system . .... .... ... .... ... 263
Safety instruct ions . .. ... .... .... . 248
Cigarette I ig hter . . . . . . . . . . . . . . . . . . . . 107
Cleaning
Alcantara (synthetic suede) . .......
300
Engine compartment .. .... .... ... 301
Fabrics and fabric coverings ... .... 297
Instrument panel ................. 298
Interior ........... .... .... ...... 297
Leather ... .... .... ........... .. . 299
MMI display .......... .... .... ... 297
MMI terminal ...... ....... .... .. . 297
Plastic and viny l ... .... .... .... ... 294
Plastic parts . ...... ... ... ... ... .. 298
Sa fe ty b elt s . . . . . . . . . . . . . . . . . . . . . 301
Trim strips .......... .... ... .. .. . 293
trim s trips . ........ ... ........... 294
Cleaning and protection ............. 290
Climate controls ...... .... .. .. .... .. 114
Air distribution .. ......... .... .. . 120
Air outlets ..... .... .... .... ..... . 122
Air outlets (rear) ...... .. .. .... .... 122
Air recirculation ... ... .. .......... 121
AUTO (standard setting) .. .... ... .. 117
Basic settings .. .... .... ... .... ... 126
Center a ir vent . ...... .. ...... .... 127
Contro ls .. .. ..... ... .. ...... .... 116
Defrosting /defogging . ....... ... .. 120
Description ..... ... .... ..... ... .. 114

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Driver information display
Driver information messages .. .... . 29
Introduction . ....... ... .. .... .... . 24
Open door or rear lid warning .. .... . 26
Outs ide temperature disp lay .... .... 25
Sound system display ... .. .. . .... . 25
Driver In forma tion Sys tem
Digital speedometer . . . . . . . . . . . . . . . 25
Driver's seat . . . . . . . . . . . . . . . . . . . . . . . . 87
Driver's seat memory . . . . . . . . . . . . . . . . . 94
Activating remote contro l key . ..... . 95
Recalling a seat position ...... .... . 94
Storing a seat position . ...... ..... . 94
Driving messages .................... 29
Driving safely ... .... ... .... ... .. ... 200
Driving time . .... .... .... .... .... .... 38
Dupl icate key . ........ ... .... .... ....
47
DVD player for navigation system . . . . . 112
E
Easy entry feature 129
Elect romechanica l parking brake
Emergency braking .... .... ... .... 136
Malfunction .. .... .... .... ... .... 136
Operation . . . . . . . . . . . . . . . . . . . . . . . 134
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 135
Releasing and app lying .. .... ..... 134
Starting off with a trailer . .... ..... 136
Warning /indicator lights . .......... 22
Electronic differential lock (EDU How the system works . . . . . . . . . . . . 271
Warning/indicator lights . .... ..... . 21 Electronic immobili
ze r .. .. .... ..... 14 , 49
Electronic power control (EPC) warning/indicator light ... ..... 18
Electronic speed limiter .... .... .... ... 28
Electronic stabi li z ation program (ESP)
How the system works ....... .... . 270
Wa rning/indicator ligh ts ........... 18
Emergency braking . .......... .. ... . 136
Emergency closing Power sunroof . ... .... .... .... . 66 , 67
Emergency flasher . . . . . . . . . . . . . . . . . . . 73
Warning/indicator ligh ts ........... 19
Emergency locking . . . . . . . . . . . . . . . . . . . 54
Emergency locking of doors .. ... ... .. . 54
Emerg ency starting . ...... .. ... .... . 366
Emergency towing .. ... .. ... .. .. .... 368
Emergency warning triangle .. ... .... . 350
Energy management ... .. ..... ... ... 276
Battery power . . . . . . . . . . . . . . . . . . . 277
Driver no tification . . . . . . . . . . . . . . . . 277
Engine 4.2 1, 8-cylinder (350 hp) .... ... .... 310
6.0 I, 12 -cylinder (450 hp) . ...... ... 311
Compartment ... .... .... .... 3 10,311
Coolant . .. ...... ... ........ .. ... 316
Hood . .... .... .... .... ........ .. 308
Starting .. .... ... ..... ... ... 129, 130
Starting wi th jumper cables ... .... 366
Stopping ............ .... .... .... 131
Engine compartment ... .... .... ..... 310
Safety instructions .......... .... . 309
Working the engine compartment .. 309 Engine coolant
.. .. .. .. .. .... .... ... 316
Adding coolant ... .... .... .... ... 318
Checking the engine coolant level .. 317
Expans ion tank .... ... .... .... ... 317
Malfunction symbol ... .... .... .... 31
Radiator fan .... . ...... .... .. ... . 319
Temperature gauge ... .... .... .. .. 12
Engine data .. ..... .. . ... ... . .. .. .. . 380
Engine hood Closing ... .. .... .... .. .. . ... ... . 309
How to release the hood . . . . . . . . . . 308
Engine oil ... ..... .... .... .. . ... ... . 311
Adding ..... .... .... .. .. . ... ... . 314
Additives . ... .... .... .. .. . ... .... 314
Changing .... .... .... ... . ... .... 315
Checking the engine oil leve l ....... 313
Indications and conditions requir ing extra
checking .... .... .... ... .... ... 313
Oil consumption . ...... .. .. ... .. . 313
Oil grades ..... ... ... ...... ... .. . 311
Oil level symbol .. ........ .... ... .. 35
Pressure malfunction ...... .... .. . . 32
Recommended oil check intervals . . 313
Sensor defec tive . . . . . . . . . . . . . . . . . . 35
Speci fication and viscosity .. .... ... 311
Engine speed limitation . ... .. ... .... .. 35
Environment Break -in period ....... ........... 279
Catalytic converter .... ..... ...... 280
Disposing of your vehic le battery ... 324
Driving at high speeds ... .... ... .. 281
Driving to minimize pollution and noise . 281
Fuel .. ...... ....... ...... .... ... 305