2009 AUDI S8 coolant temperature

Checking and filling 111111 _______________________________ =..:..:..::...:::...:...:~:....:...;_.:....::___--:::-------J
& WARNING !continued )
• Antifr eeze is po isonous. Always store antifreeze in it s original
c ontainer and well out of the re ach of children .
• If you drain the coolant, it must be caught and safely stored in
a proper co ntainer cle arly m arked "poi son ".
0 Note
• Coolant po llutes the environment and cou ld cause an engine
fire. Excess coolant will be forced out through the pressure relief
valve in the cap when the engine becomes hot.
• I f, in an emergency, only wa ter can be added, the correct ratio
between water and antifreeze=>
page 316 must be restored as soon
as possib le .
W For the sake of the environment
Drained coolant should not be reused. A lways dispose of used
coolant while observing all environ mental regula tions . •
Radiator fan
The radiator fan switches on au tomatically by i tself.
T he radiator fan is driven by the engine via the V-belt. The viscous
clutch regulates the speed of the fan according to the temperature
of the coo lan t.
An auxiliary electric radiator fan * switches on and off depending on
coolant tem perature and o ther vehic le opera ting condi tions.
After you switch the engine off , the auxiliary fan can continue
running for up to 10 minutes -even with the ignition off. It can even
switch on again later by itself=>&, if
• the temperature of the engine coolant rises due to the heat
bu ild -up from the engine i n the engine c ompar tment, or •
the engine compartment heats up because the vehicle is parked
in intense sunligh t.
& WARNING
• To reduce the ri sk of personal injury never touch the radiator
f a n .
• The aux iliary electric fan i s te mperature controlled and can
switch on suddenly even when the engine is not running .
• The au xiliary radiato r fan switche s on automatic ally when th e
eng ine coolant reache s a certain temperature and
will continue to
r un until the coo lant tempe rature drop s. •
Brake fluid
Checking brake fluid level
T he brake fluid level can be checked with a quick glance.
-w ;:;
Fig . 270 Engin e
c o mpartm ent: B ra ke
fluid r ese rvo ir
Before you check anything in the e ngine comp artmen t,
always read and heed all WARNINGS:::::> & in "Working in
t h e engi ne compartment" on
page 3 09. .,_
Vehicle 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-

Alphab eti ca l ind ex I'll ____________________________ ...:.....=.!:..:....:.=.::::...::...::.:....::....:.: __ _
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
Recircu lation mode (automa tic) ... .. 126
Recommended settings ...... .... . 11 4
Residual heat . ... .... .... ...... .. 117
Setting the temperature ....... .... 117
SETUP ... ..... .. .... ....... .... . 126
Solar blower fan/solar roof .... .... . 123
Solar operation ... ... .... ....... . 127
Switching on and off .............. 117
Synchronization .. ................ 127
Using climate control economical ly . 123
W indshield defogger/defroster . .... 123
Clock ...... ... .. ........ .... .... ... . 13
Closing Power sunroo f .... ... .... .... .... . 66
Coat hooks ................ .... .... . 112
Co ld tire inflation pressure .. ...... ... 330
Compa rtments in the door trim panels . 111
Compartments in the rear doors ....... 111
Compliance ... .. .... .... ... .... .... 385
Consumer Information ....... .... 209, 382
Contacting NHTSA .................. 209
Conven ience key ... .. .... ... .... .... . 58
Driver's messages .. ...... ...... .. 133
Locking the veh icle . ...... ... .... .. 60
ST ART button .. ...... .... ... .... . 131
Starting the engine .... ...... .... . 131
Controls and equip­
ment Safety first
STOP button
... .. ....... ... .... .. 1 32 Data recorder .. ..... ..... ...... ..... 2 70
Stopping the engine .............. 132
Date display ...... .... ... .... .... .... 1 3
Switching on the ignition .. .... .... 131
Daytime running lights ........... .. 69, 70
Un lock ing the vehic le .............. 59
Declaration of compliance
Convenience open feature Adaptive Cruise Control ....... .... 385
Windows ......................... 64
Audi side assist .... ... .... ....... 385
Convertib le chi ld safety seat ...... .... 251
Cell phone package ............... 385
How do I prope rly i nsta ll a conve rtib le
Convenience key ...... ..... .. .... 385
chi ld safety seat in my vehic le? ... . 251
Electronic immobilizer ............ 385
Safety instructions ................ 251
Homelink® universal remote control 385
Convertible locking retractor Remote control key .. ........ .... . 385
Activating ....................... 257
Tire pressure m onito rin g sys te m . ... 385
Deactivating . ........... ........ . 258
def
Using to secure a chi ld safety seat . 255,
What does this mean when it appears in
257 the trip odomete r disp lay? ... .. .... 1 4
Coolant Defect ive light bu lb warning .. ........ . 26
See Engine coo lant ............... 316 Defrosting/defogging the windows .... 120
Cruise control Defrosting/def oggi ng windows ....... . 122
Changing speed .................. 138
P resetting your speed . ............ 138
Switching off .................... 138
Switching on ......... ... ........ 137
Warning/indicator lights ....... ..... 21 D
etermining correct load limit ......... 336
Digita l clock .. ...... .... .... .... ..... 13
Digita l speedometer ..... ............. 25
Dimensions .. .... .... ............. . 378
See also Adaptive Cruise Control . ... 139 Dipstick
Cruising range ... ..... ... .... ....... . 38 Readi
ng the dipstick proper ly ..... . 313
Cupholder ...... ..... .. .... .... ... . 105
Cen ter c onso le .. ...... ..... .. .... 1 08 Distance control system
See Adaptive Cruise Contro
l ... ..... 139
Doors
D
Mechanica l chi ld safety lock ......... 57
Power child safety lock ............. 58
Dam ping Power side door closer ...
... .. ..... 53
See Adaptive Air Suspension ....... 188
Driver
Data ........ .... ..... ... ..... ...... 380
See Seating position ........ ...... 202
Vehicle operation Vehicle care Do-it-yourself service Technical data

___ A_l.:,. p _h_ a_ b_e _t _i c_ a_l _i n_ d_e _x ____________________________________________ _
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

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a _ l _in _ d_e _ x __ _
Fuel economy ...... .... .... .... .. 281
Leaks under your vehicle ... .. .... . 309
Lettin g the vehicle s tand and warm up .
28 2
Pr oper disposal of drained brake fluid
320
Proper disposal of dra ined e ngine
coolant ........................ 318
Proper disposal of drained engine oil ...
314,3 15
Recycling used engine oi l ........ .. 314
Un leaded fuel ... .. ... .. ...... .... 303
What should I do with an old battery? 324
EPC
See Electronic power control ........ 18
ESP
See Electronic stabilization program
(ESP) ... ..... ......... ....... ... 18
Event Data Recorder (EDR) ... .... ..... 270
Expans ion tank ...... ... .. ........ .. 317
F
Fan
Radia tor .. ...... ........ ..... .. . 319
Flat tire changing .................... 45
Floor mats ..... .... .... .... ... .... . 207
Fog lights Front .. ... .. .... .... .... ...... ... 71
Rear .... ... .. ....... .. ....... ... . 71
Warning/indicator lights ...... .... .. 19
Fo lding master key with remote control . 47
Foot pedals ... ... .. .... .... .... .... 206
Controls and equip­
ment Safety first
For the sake of the environment
Gaso line fumes and the environment 305
L etting your engine warm up .. .... . 130
Reducing engine noise by ear ly
upshifting . ...... .... .... ... .... . 12
Refueling . .... ... .... .... .... .... 305
Saving fuel by early upshifting .... .. 12
Using the rear window defogger .... 124
F ront a irbags
Description ... .... .... .... .... ... 224
How they work ................... 229
Front arm rest adjusting ..... ... .... .... .... .... . 93
Storage compartment ... ...... .... . 93
Front ashtray .... ..... .. ..... .... ... 106
Front fog lights ... .. .... .... .... .... . 71
Front seats ...... .... ........ ....... . 86
Adjusting .. ...... .... .... .... ... 203
Ch ild restra ints in the front seat ... . 222
Convenie nce side v iew .. ...... .... . 91
Poc kets ... .. .... .... .... .... .... 1 10
Symmetrica l seat positions . ...... .. 91
Fronta l collisions and the laws of physics
212
Fuel Additives ... .. ..... .. .... .... .... 303
Average c onsumption .... ...... ... . 38
Blended gasoline ... .. .... .... .... 303
F uel filler neck . ...... .... .... .... 304
Fuel gauge .. ....... .... .... .... .. 14
Gasoline ...... ... .... .... .... ... 303
Gaso line additives ................ 304
I nstantaneous fuel consumption ..... 38 Low
fuel level symbol .... ... .. ..... 35
Octane rating .... .... .... .... .... 303
Recommendation . .... .... .... .... 303
Refuelling . ... .... .... ...... ..... 305
Reserve .......................... 14
Tank capacity .. ...... .... .... . 14, 380
Un lock ing the fue l filler flap by hand 307
Fuse arrangement ... ....... ... .. .... 360
G
Garage door opener (Homelink®) ...... 194
Gas discharge lamps ...... .... .... ... 364
Gauges Engine coolant temperature . ...... .. 12
Fuel gauge ... .... .... ... .... .... . 14
Speedomete r ..... .... ... .... ..... 1 4
Tac hometer . ... ... .... ... .... .... . 13
Trip odometer ... .. .... .... ...... .. 14
General illustration Instruments and controls ......... .. 11
Generator Warning/indicator lights .... .... .... 18
G lossary of t ire and loading terminology . . .
327
G love compartment .. ....... .... .... 109
cd changer ... .... .... .... .... ... 109
Owner's Literature .... .... .... .... 109
Gross Vehic le Weight Ra ting (GVWR) ... 377
Vehicle operation Vehicle care Do-it-yourself service Technical data