airbag off AUDI S8 2009 Service Manual

Checking and filling -
---------------------=----"=---------
checked by a service facility. The electrolyte level should also be
checked each time the battery is charged =>
page 323.
Have the battery checked when you take your vehicle in for service.
You are well advised to replace a battery that is older than 5 years.
With certain types of airbag deployment, the battery is discon­
nected from the vehicle electrical system for safety reasons=>.& in
"Repair, care and disposal of the airbags" on
page 234.
Disconnecting the battery terminals
Some vehicle functions (power window regulators, for example) are
lost if the battery terminals are disconnected. These functions have
to be relearned after the battery terminals are connected again. To
prevent this, the battery should only be disconnected from the
vehicle electrical system when absolutely necessary for repairs .
Vehicles not driven for long periods If you do not drive your vehicle over a period of several days or
weeks, electrical components are gradually cut back or switched off.
This reduces energy consumption and maintains starting capability
over a longer period
=> page 276.
Be aware that when you unlock your vehicle, some of the conve ­
nience functions may not operate, such as the Convenience key*,
the remote control or the power seat adjustment. The convenience
functions will be available again when you turn on the ignition and
start the engine.
Winter operation During the winter months, battery capacity tends to decrease as
temperatures drop. This is because more power is also consumed
while starting, and the headlights, rear window defogger, etc., are
used more often.
Avoid unnecessary power consump tion, particularly in city traffic or
when traveling only short distances. Let your authorized Audi dealer
check the capacity of the vehicle battery before winter sets in
=> page 323. A well charged battery will not only prevent starting
problems when the weather is cold, but will also last longer.
[ i] Tips
If your vehicle is left standing for several weeks at extremely low
temperatures, the vehicle battery should be removed and stored
where it will not freeze. This will prevent it from being damaged and
having to be replaced.•
Working on the battery
Be especially careful when working on or near the battery.
Fig . 271 Luggage
compartment: Right·
side storage compart­
ment
Fig . 272 Luggage
compartment : Battery
The battery is located in the luggage compartment on the
right side behind a cover. Before you check anything in the
luggage compartment,
read and heed all WARNINGS=>& . .,_
Vehic le care I I irechnical data

___ C_ o_n_ s_ u_m _ e_ r_ ln_ f_o _r_m _ a_ t_ i_o _n ______________________________________________ _
& WARN ING (continued )
• The engine compartment of any motor vehicle is a potentially
hazardous area . Never rea ch into the area around or to uch the
radiator fan . It is temperature controlled and can sw itch on
suddenly -even when the engine is off and the ignition key has
been removed . The radiator fan switches on automatically when
the coolant reaches a certain temperature and will continue to run until the coolant tempe rature drops .
• Always remove the ignition key before anyone gets under the
vehi cle .
• Always support your vehicle with safety stands if it is neces ­
sary to work underneath the vehicle . The jack suppl ied with the
vehicle is not adequate for this purpose and could collap se
causing serious personal injury .
• If you must work underneath the vehicle with the wheels on
the ground, always make sure the veh icle is on level ground , that
the wheels are always securely blocked and that the engine
cannot be sta rted .
• Always make sure the tr ansmission selector lever (automatic
transmission) is in "P" (Park position ) and the p ark brake is firmly
applied.
W For the sake of the environment
• Cha ng ing the e ngin e sett ings will a dverse ly aff ect em iss ion
levels. This is detrimenta l to the environment and increases fuel
co nsump tion .
• Always observe environmenta l regu lations when disposing of
o ld eng ine oil, u sed bra ke flu id, d irty eng ine coo la nt, spent batter ies
or worn out tires.
• Undeployed airbag modul es and pretensioners might be classi ­
fied as Perchlorate Material -specia l handling may apply, see
www .d tsc.ca .gov/ hazardouswaste/pe rc h lora te . W hen t he vehicle or
parts of the restraint s ystem including airbag modules safety be lts
with pre tensio ners are sc ra p pe d, a ll ap pl ica ble laws and reg ula- tions must be observed. Your authorized Audi dea
ler is familiar with
t hese requi reme nts and we reco mmend th at you h ave your dealer
perform th is serv ice for you. •
Additional accessories,
modifications and parts replacement
Additional accessories and parts
replacement
A lways consult an author ized Audi dea ler before
pur chasin g access orie s.
Y our vehicle incorporates the latest safety design featu res ensuring
a hi gh standa rd of active a nd passive sa fety .
T his saf ety could be com promised by non -approved changes to th e
vehic le . Fo r thi s reason, i f parts have to be replaced, p lease obse rve
th e fo llow ing po ints wh en insta lling add it io na l acc essories:
Approved Audi accessories and genuine Audi parts are avai lable
from autho rized Audi dea lers .
T hese dealers also have the necessary faci lities, tools and trained
spec ia lists to ins tal l the part s and accessorie s prope rly.
& WARNING
Using the wrong spare parts or using non -approved accessories
can cause serious personal injury.
• Use only accessorie s expressly approved by Audi and genuine
Audi spare parts
• These parts and accessories have been specially designed to
be used on your vehicle .
• Never install accessories such as telephone cradles or
beverage holders on airbag covers or within the airbag deploy-

__ _!_A~ l~p~ h~ a~ b~e~ t:!:ic~a~ l _!:i n~ d~e~ x~ --------------------------------------------
A
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 384
Adaptive Air Suspension .... ... .. .... 188
automatic mode ...... .... ....... 189
Description ... ... ... ..... .... ... 188
dynamic mode ................... 189
Jacking mode when changing a flat tire .
191
lift mode ...... ..... .... .... .... . 189
Setting the driving modes .. .... ... 191
Sport Chassis Controls . . . . . . . . . . . . 190
standard mode ... .... .... .... ... 189
Trailer towing mode ... .... .... ... 192
Warning/indicator lights ........ 20, 21
Adaptive Cruise Control . ... .. .... ... .
Changing speed .... .... .... .... .
Driver information .............. .
Driving in traffic .. .... .... ..... . .
Error messages ................. .
Open road ......... ............ .
Override ........ ............... .
Request for driver to assume control
Save speed ..................... .
Setting distance .. .... .... .... .. .
Setting time interval . ... .. .... ... .
Settings . ... .... .... .... ....... .
Specia l driving situations . ....... . 139
142
146
140
148
140
140
140
142
144
144
150
150
Status messages . . . . . . . . . . . . . . . . . 148
Switching on and off ... .. .... ... . 141
System limitations .... ....... ... .
Temporarily turning off ....... ... .
warning/indicator lights ... .... ... . 150
143
146 Adaptive Light
.......... .... .... .... . 72 System error message . ...... .... . 186
defective .. .... .... .... ..... .. .... 36 Towing hitch .. .... .... ...... .... 183
Adding Air conditioning
Engine coolant ... ....... .... .... .
318
See Climate controls 114
Engine oil . .... .... .... ... .... .. .
314 Airbag system .... .... .... ..... . 220, 240
Windshield washer fluid .... .... .. .
325 Advanced Airbag System ...... .... 224
Additional accessories .......... .. ... 384
Additives Engine oil . .... ...... ... .. .... ... 314
Adjustable steering col lumn .. ..... ... 128
Adjusting Front seats .... ...... .... .... .... . 86
Instrument cluster i llumination . .... . 15
Steering column . ........... .... .
128
Advanced Parking System with rear view camera
Adjusting the chimes -option 1 . ... 183
Adjusting the chimes -option 2 ... . 184
front and back with visual display and
rear -view camera . . . . . . . . . . . . . . . 173
General information ......... ..... 173
Notes on distance irnformation ... .. 182
Parking next to obstacles . . . . . . . . . . 181
Rear -view camera -parking mode 1 . 178
Rear -view camera -parking mode 2 . 179
Rear -view camera (Rear View) ...... 176
Rear -view camera coverage area . . . . 177
Rear -view camera tips . . . . . . . . . . . . 186
Special parking situations .. .... ... 181
Switching the rear-view camera on and off ............................ 185
sw itching the visual display on and off
185 Advanced Airbag System components .
..
227
Care .. .... .... .... .... ... .... ... 234
Child restraints 247
Children ... .... .... ... .......... 246
Components (front airbags) . .... ... 227
Danger of fitting a child seat on the front passenger seat ............... .. 222
Disposal ............ .. ...... .... 234
Front airbags .. ............ .. 224, 225
How do the front airbags work? . ... 229
How many airbags does my vehicle have? 227
How the Advanced Airbag System compo ­
nents work together . . . . . . . . . . . . . 228
Important safety instructions on the knee
airbag system .................. 238
Important things to know .......... 220
Indicator light .... ......... ...... 231
Knee airbags 236
Monitoring .. .... .... .... .... .... 231
PASSENGER AIR BAG OFF light ... .. 232
Repairs ..... .... .... .. .. . ... ... .
Safety instructions .. .... .... .... .
Side airbags . .... .... .... .... ... . 234
233
239
Side curtain airbags .... ... .... ... 242
Warning/indicator lights ........... . 19

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H
Head restraints . . . . . . . . . . . . . . . . . . . . . 205
Adjusting ....................... 205
Comfort head restraints ....... .... . 91
Front seats . . . . . . . . . . . . . . . . . . . . . . . 91
Rear seats . . . . . . . . . . . . . . . . . . . . . . . 92
Headlight range control . . . . . . . . . . . . . . . 36
Headlights ... .... ... .... .... ...... .. 69
Adaptive Light .... .... .... ...... .. 72 Hood
Opening 308
Release lever . . . . . . . . . . . . . . . . . . . . 308
Horn .. ...... ............ ....... .... 11
How many a irbags does my vehicle have? ..
227
How often should I check my tire pressures?
334
How safety belt pretensioners work .... 218
Hydroplaning ........ .... .... ...... 338 Instrumen
ts and controls
General illustration ................ 11
Illumination ...................... 15
Instrument cluster .. .... ..... .. .... 12
Int erior lights
Background lighting .... ... ........ 76
Front ............................ 74
Rear ...... .... ... ..... .. . .. .. .... 75
Intermittent wiping
Rain sensor ... .... .... ...... .... . 80
Defective . . . . . . . . . . . . . . . . . . . . . . . . 26
Front fog lights . . . . . . . . . . . . . . . . . . . 71
I J
Switching off ..................... 69
Switching on ...... ....... ........ 69
Washer reservoir . . . . . . . . . . . . . . . . . 325
Washer system . . . . . . . . . . . . . . . . . . . 81
Xenon headlights . . . . . . . . . . . . . . . . . 69
Heated Front seats . . . . . . . . . . . . . . . . . . . . . . 118
Rear seats . . . . . . . . . . . . . . . . . . . . . . 119
Windshield ...................... 123
Heated outside mirrors . . . . . . . . . . . . . . . 84
Heated seats Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Rear seats . . . . . . . . . . . . . . . . . . 119, 125
Heated steering wheel ............... 119
Heated washer jets
Wiper and washer system . . . . . . . . . . 80
Heavy clothing and safety belts ....... 214
High beam . . . . . . . . . . . . . . . . . . . . . . . 69, 73
Warning/indicator lights . .... . ... .. 19
High voltage warning label ... .... .... 376
Homelink® universal remote control .. 194 Ignition key
129 Jack
351
Ignition lock .. .... .... .... .... .... .. 129 Jumper cables .. ...... .... .... .... .. 367
Malfunction .. .... .... ... .... ..... 33 Jump-starting .... .... .... .... ...... 366
Ignition lock posit ions .......... ..... 129
Immobilizer ......................... 14 K
Important things to do before driving .. 201
Improperly worn safety be lts ......... 218
Indicator light
Airbag system ............... 231, 232
PASSENGER AIR BAG OFF ......... 232
Key ...... .... .... .... ... ....... .... 47
Battery replacement master key ... .. 48
Coded settings ................... 114
Emergency key .................... 47
Key replacement .................. 47
Indicator lights ....... ... ........ .... 16
Master key ....................... 47
Infant seat ........... ........ .... .. 250
Valet key ...... .... ............... 47
How do I properly install an infant seat in Key coded settings
my vehicle? .. ...... ....... .. ... 250
Climate controls .. .......... ..... 114
Safety instructions .............. . 250
Installing a child safety seat Safety belts . . . . . . . . . . . . . . . . . . . . . 255 Keyless
entry remote control . .......... 48
Kick-down .... ....... .... ... .... ... 169

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_ic _ a _ l _in _ d_e _ x __ lll
Reading lights
Front ... ... ... .. .... .... ..... .. ..
74
Rear .. ..... ... ... ....... .... ... .. 75
Rear ashtray ......... .... ........ ... 107
Rear center console ..... ............ 108
Rear c limate controls ................ 125
Air distribution ................. .. 125
Automatic operation ...... ...... .. 125
Controls ......... .... ... .... .... 125
Heated seats . . . . . . . . . . . . . . . . . . . . . 125
PASSIVE ........................ 125
Switching on and off .............. 125
Temperature ... .. .... .... ...... .. 125
Venti lated seats ....... ........ ... 125
Rear fog lights ....................... 71
Rear lid
Automatic operation .......... .... .
56
Escape handle ............ ....... 350
Opening and closing ...... ..... .. .. 54
Opening manually ................. 55
Rear light
Defective . .... .... ....... ..... ... .
26
Rear seat
Contro ls ... .. .... .... ......... ...
97
Easy entry . . . . . . . . . . . . . . . . . . . . . . . 100
Head restraint adjustment ... ....... 99
Lumbar support ....... .... .... . 96, 99
Massage function ..... ...... .... .. 98
Seat adjustment ..... ....... .... .. 98
Setting in the MMI ................ 100
Rear view
See Rear-view camera .. ...... .... . 173
Rear window defogger ............... 124
Controls and equip­ ment Safety first
Rear window shelf
...... ... ... .. . .... . 97
Rear -view camera ........ ....... 173, 176
Parking mode 1 ...... ............ 178
Parking mode 2 .................. 179
Red symbols .............. ...... ... . 30
Refuel ling ...... ....... ...... .... ... 305
Release lever for hood ........... ... . 308
Remote control .. .... ... .... .... .... . 48
Unlocking and locking ............. 51
Remote control garage door opener
(HomeLink®) ...................
194
Remote rear lid releas ,e ............. ... 54
Repair manuals ........ .... ... .. .... 382
Repairs
Airbag system .... .... .... .... ...
234
Replacing
Wheel rims .......... ... .... ... ..
340
Replacing a fuse ................ .... 360
Replacing light bulbs .... .... .... .... 364
Replacing tires and wheels ........... 339
Reporting Safety Defects ......... 209, 210
Reset button ..... .. .... ........ .... . 14
Retractor ..........................
215
Rims Cast alloy .......................
295
Replacing .. ...... .... ...... ... .. 340
Roof rack ... ....... ........ .... .... 103
Loading ......................... 104
Mounting locations ......... .. .... 104
Roof weight ........................
104
s
SAFE ... ...... .......... ....... .... . 14
Safe driving habits ....... ....... .... 200
Safety belt height adjustment . .... .... 218
Safety belt position ... .... ...... ..... 216
Safety belt height adjustment ...... 218
Safety belts worn by pregnant women ..
217
Safety belt pretensioner .............. 218
Service and disposal ..... ......... 219
Safety belt warning light . .... .... . 20, 211
Safety be lts ... .. .... ....... .... .... 215
cleaning ...... .... ..... .. .... ... 301
Danger to passengers who do not wear a
safety belt ...... .... .... .... ...
213
Fastening ....................... 215
Improperly worn .................
218
Not worn ... .. .... .... .... ...... . 213
Safety belt position . ...... .... .... 216
Safety instructions .... .... .... .... 214
Securing child safety seats .........
255
Special considerations for pregnant
women ...... ....... .... .... ...
217
Unfastening ...... .... ...... .... . 217
Warning/indicator light ............
211
Why YOU MUST wear them ..... ... 211
Worn properly ........ ...... .... . 214
Safety comp liance sticker ............
376
Safety equipment .... ....... .... .... 200
Safety features for occupant restraint and
protection ... ... ........ .... ....
200
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ A---" lp_h_ a_b_ e_ t_ i_ c _ a_ l_ in_d_ e_x ______________________________________________ _
Safety guidelines
Seat adjustment . . . . . . . . . . . . . . . . . . 86
Safety instructions Engine compartment ..... .... .... 309
for a booster seat . . . . . . . . . . . . . . . . 253
for side curtain airbags .... ....... 243
for using a conver tible child safety sea t .
251
for using an infant seat .. ......... 250
for using child safety seats ........ 248
forusingsafetybe lts ... ... .... ... 214
Monitoring the Advanced Airbag System 233
Safety lock Ignition key, automatic transmission 130
Seat adjustment Adjusting the seatback ............. 89
Driver 's seat . . . . . . . . . . . . . . . . . . . . . . 86
Driver's seat memory . . . . . . . . . . . . . . 94
Fron t passenger's seat . . . . . . . . . . . . . 87
Front seats . . . . . . . . . . . . . . . . . . . . . . . 86
Head restraints ............. .. 91,205
Lumbar support .. ............... . 90
Power seat . . . . . . . . . . . . . . . . . . . . . . . 87
Safety guidelines .. ... .... ..... ... 86
Seat belts Why YOU MUST wear them ..... ... 211
Seat memory . . . . . . . . . . . . . . . . . . . . . . . . 94
Seat position Incorrect seat position . . . . . . . . . . . . 205
Seating capacity . .... .... .... ... .... 211 Seating position
Driver . ... .... ...... ...... ...... 202
Front passenger .. .... .... .... ... 203
How to adjust the front seats .. .... 203
Occupants .... .... .... ... ....... 202
Rear passengers
Seats Number of seats 204
211
Selective unlock feature .... ....... ... 52
Selector lever . . . . . . . . . . . . . . . . . . . . . . 167
Service and disposal Safety b elt pret ensioner . ... .... ... 219
Service interval display . . . . . . . . . . . . . . . 27
Service position Windshield wipers . .... .... ....... 82
Servotronic Power steering ...... ...... .... ..
2 7 5
Shift buttons . . . . . . . . . . . . . . . . . . . . . . . 171
Ship Transporting your vehicle . ........ 371
Side airbags Description .... .... .... .... .... .. 239
How they work . . . . . . . . . . . . . . . . . . . 240
Side assist Activating and deactivating ........ 156
Description .......... ...... .... .. 156
Informationa l and alert stage signals 158
Messages in instrument cluster display .. 163
MMI settings ............ .. .. .... 162
Operation . . . . . . . . . . . . . . . . . . . . . . . 158
Safety tips . . . . . . . . . . . . . . . . . . . . . . 164
Sensor detection area . . . . . . . . . . . . 158 Side curtain airbags .
... .. .... .... .. . 242
Description ..... ... .... .... .... .. 242
How they work . . . . . . . . . . . . . . . . . . . 243
Safety instructions . ... .... .... ... 243
Side marker lights .. ....... .... .... ... 69
Sk i sack . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Snow chains ....... .... ....... .. ... 344
Sockets ........................ 107, 108
Solar blower fan/solar roof . .... ..... . 123
Sound system display Driver information disp lay . .... .... . 25
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . 352
Speed control sys tem
See Adaptive Cruise Control ...... .. 139
Speed rating letter code .. .... .... ... 340
Speed warning system ........ .... .. . . 37
Speedometer .. .... .... ... ...... ..... 14
Sport Suspension
See Adaptive Air Suspension . .... .. 188
Starting off with a trailer ... ... .... ... 136
Starting the engine .... .... ... ... 129,130
What should I do if the engine does not
start? ... .... .... .... ...... ... . 130
Steering . .... .... .... .... ... .... ... 128
Adjusting s teering column .. .... ... 128
Easy entry feature . .... .... .... ... 129
Locking the steering ....... ....... 129
Malfunction .. .. .. .... .... .... .. . . 33
Steering wheel heating .... .... ... ... 119
Steps for determining correct load limit 336
Stopping the engine .... ... .... .... .. 131