2008 AUDI S8 fuel consumption

Tires a nd wh eels -
----------------
•
0 Not e
Driving without valve stem caps can cause damage to the tire
valves. To prevent this, a lways make sure that factory instal led valve
stem caps on a ll whee ls are securely mounted on the va lve .
W Fo r the sake of the env ironm ent
Underinflated tires wil l a lso increase the fuel consumption. •
Tires and vehicle load limits
There are lim its to t he amount of load or weight that any ve hicle and
any tire can carry . A vehicle that is overload ed wil l not hand le well
and is more difficu lt to stop. Overload ing can not only lead to loss
of vehic le control , but can a lso damage important parts of the
vehic le and ca n lead to sudden t ire fa ilure, inc luding a blowout a nd
sudden deflation that can cause the vehic le to crash.
Your safety and that of your passengers also depends on making
sure that load l imits are not exceeded. Vehicle load includes every­
body and everything in and on the vehic le. These load limits are
technica lly referred to as the vehicle's
Gross Ve hicle We ig ht R ating
("GVWR").
The "GVWR" includes t he weight of the bas ic ve hicle, al l factory
insta lled accessories, a full tank of fuel , oil , coolant and other fluids
p lus maximum load . The maximum load i ncludes the number of
passengers that the vehicle is intended to carry ("seating capacity")
with an assumed weight of 150 lbs (68 kg) for each passenger at a
designated seating position and the total weight of any luggage in
the vehicle . If you tow a trailer, the weight of the trailer h itch and the
tongue we ight of the loaded trai ler must be included as part of the
vehic le load.
The
Gros s Axle We ight Rating ("GAWR") is the maximum load t hat
can be applied at each of the vehicle's two axles. The Gross Vehicle Weight Rating and the Gross Axle Weight Rating
are listed on the safety comp liance s ticker label loca ted either on
the driver's side B-pillar or on the inside of the fuel fil ler flap . Your
Audi has 5 seating positions, 2 in the front and 3 in the rear for total
seating capacity of 5. Vehicles with power individual rear seats*
have 4 seating positions, 2 in the front and 2 in the rear for total
seating capacity of 4. Eac h seating position has a safety be lt
~ page 209, "Safety be lts".
The fact that there is an upper limit to your veh icle's Gross Vehicle
Weight Rating means that the total weight of whatever is being
carried in the veh ic le ( including t he we ight of a trai ler hitch and the
tongue weight of the loaded trai ler) is limited . The more passengers
in the vehicle or passengers who are heavier than the standa rd
we ights assumed mean that less weight can be carried as luggage .
The tire pressure labe l on your Audi also lists the maximum
combined we ight of a ll of the occupants and luggage or other cargo
that th e vehicle can carry. For the location of the lab el
~ page 328 ,
fig. 272 .
& WARNING
Overloading a v ehicl e can cau se loss of vehicl e control , a cras h or
o ther ac cident , serious p ers on al injur y, and eve n de ath.
• C arrying more weight th an your vehi cle was designed to c arry
will prevent the vehicl e from handling prop erl y and in cre a se the
ri sk of the l oss of vehi cle control.
• The br akes on a vehi cle that has b een overload ed may not be
a bl e to sto p the vehi cle within a safe di sta nce.
• Tir es on a ve hic le th at ha s bee n ov erlo ad ed c an fail sudd enl y,
in clu din g a bl owout and sud den d efl atio n, ca usi ng loss of con trol
and a crash .
• Al ways m ake sur e th at the total lo ad being tr ansp orted -
includin g th e w eight of a tr ailer hitch and th e tong ue weight of a
load ed tr ailer -do es not m ake the vehi cle he avie r than the
vehicle 's Gro ss Vehicl e W eight R ating. •
Vehicle care

lll'ffll_....:..A..:.;l~ p :..;h..:.; a= b..:e :..;t:.:..i c::..:: a.:..l .,;. in :..:..:. d:..;e :..;x..:..,_ ___________________________________________ _
Driver's seat memory . . . . . . . . . . . . . . . . . 94
Activating remote contro l key .. ... .. 95
Recalling a seat position ...... .... . 94
Storing a seat position ............. 94
Driving messages .................... 29
Dr ivingsafely .... .... .... ...... .... 198
Driving time .... ... .. .... .... ...... .. 38
Dup licate key ......... ............... 47
DVD p layer for navigation system . . . . . 112
E
Easy entry feature 129
Electromechanica l parking brake
Emergency braking ............... 136
Malfunction ........ .... .... .... . 136
Operation . . . . . . . . . . . . . . . . . . . . . . . 134
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 135
Re leasing and app lying .... .... ... 134
Starting
off with a trailer . ...... ... 136
Warning/indicator lights ........... 22
Electronic differential lock (EDU
How the system works . . . . . . . . . . . . 269
Warning/indicator lights ........... 21
Electronic immobilizer .. ...... ..... 14, 49
Electron ic power contro l
(EPC) warning/indicator light .. .... .. 18
Electronic speed limiter .. .. .. .... ..... 28
Electronic stabi lization program (ESP)
How the system works . . . . . . . . . . . . 268
Warning/indicator lights ........... 18
Emergency braking .. ....... .. ...... 136 Emergency
closing
Power sunroof ................. 67, 68
Emergency flasher . . . . . . . . . . . . . . . . . . . 73
Warning/indicator lights ..... ...... 19
Emergency locking ....... .... .... .... 54
Emergency locking of doors ........... 54
Emergency starting ........ .... ... .. 364
Emergency towing ..... .. .... .... ... 366
Emergency warning triangle ... ....... 348
Energy management .... .... ... .. ... 274
Battery power . . . . . . . . . . . . . . . . . . . 275
Driver notification ................ 275
Engine 4.2 I, 8-cylinder (350 hp) .... .... ... 308
6 .0 I, 12-cylinder (450 hp) .......... 309
Compartment . .... .... .... .. 308, 309
Coolant ......................... 314
Hood ... .. .... .... .... .... .... .. 306
Starting ...... .............. 129, 130
Starting with jumper cables .. ... .. 364
Stopping ........................ 131
Engine compartment ... .. .... .... ... 308
Safety instructions .......... ..... 307
Working the engine compartment .. 307
Engine coolant ..................... 314
Adding coolant ............. ..... 316
Checking the engine coo lant level .. 315
Expansion tank .................. 315
Malfunction symbo l ...... .... .... . 31
Radiator fan ...... .... .... .... ... 317
Temperature gauge . . . . . . . . . . . . . . . 12
Engine data ........................ 378 Engine hood
Closing ..... .. .... .... ...... ... . 307
How to release the hood . . . . . . . . . . 306
Engine oi l ..... ... .... .... .... ...... 309
Adding ......................... 312
Additives ........................ 312
Changing .. .... .... ..... .. .... .. 313
Checking the engine oil level ....... 311
Indica tions and conditions requiring extra
checking .. ...... .... ...... .... 311
Oil consumption ................. 311
Oil grades .. .... .... ... .... .... .. 309
Oil level symbol .... .... ...... ... .. 35
Pressure ma lfunction ... ... .... .... 32
Recommended oil check intervals .. 311
Sensor defective . . . . . . . . . . . . . . . . . . 35
Specification and viscosity ......... 309
Environment Break -in period .................. 277
Catalytic converter .... .... .... ... 278
Disposing of your vehicle battery ... 322
Driving at high speeds ....... ... .. 279
Driving to minimize pollution and noise .
279
Fuel ...... .... ........... .... ... 303
Fuel economy .......... .... .... .. 279
L eaks under your vehicle .......... 307
Le tting the vehicle stand and warm up ..
280
Proper disposal of drained brake fluid
318
Proper disposal of drained engine coolant . .... .... .... .... ....... 316

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_i c_ a_l _in _ d_e _ x __ lllll
Proper disposal of drained engine oil ...
312,3 13
Recycling used engine oi l ...... .... 312
Un leaded fuel ..... .... ... .... .... 301
What should I do with an old battery?
322
EPC
See Electronic power control ........
18
ESP
See E lectronic stabi lization program
( E SP) ...........................
18
Event Data Recorder (EDR) ... .... .... . 268
Expans io n t ank ...... .... ... .... .... 315
F
Fan
Rad ia tor .. ...... .... .... ... .... .
317
Flat tire changing .. ... .... .... ... .. .. 45
Floor mats ... .. .... .... .... ... .... . 205
Fog lights
Front . ...... .... .... .... ..... .. ..
71
Rear .... ... .. .... .... ... .... .... . 71
Warning/indicator lights ...... .... .. 19
Fo lding master key with remote control .
47
Foot pedals ........................ 204
For the sake of the environment
Gaso line fumes and the enviro nment
303
Letting yo ur engine warm up . ...... 130
Reduc ing eng ine noise by ea rly
upshifting .. .... .... ............
12
Refuel ing .... .... ....... .... .... 303
Saving fuel by early upshifting .. .... 12
Using the rear w indow defogger .... 124
Controls and equip­ ment Safety first
Front airbags
Description ......... ...... .... ...
222
How they work .... .... .... ....... 227
F ront arm rest
adjusting .........................
93
Storage compartm ,ent .............. 93
Fr ont ash tray .. ...... .... .... .... ... 106
Front fog lights ..... .... .... .... .... . 71
Front seats ...... ...... ... .. .... .... . 86
Adjusting ....................... 201
Child restraints in the front seat . ... 220
Convenience side view ............. 91
Pockets ............. .... .... .... 11 0
Symmetrica l seat positions ......... 91
Fronta l collisions and the laws of phys ics
210
F uel
Additives ..... .... .... .... .......
301
Average consumption ...... .... .... 38
Blended gasoline .... ....... .... .. 301
Fuel filler neck ............. .... .. 302
Fuel gauge .. ....... .... .... .... .. 14
Gaso line .. .... ..... ...... .... ... 301
Gaso line additives .. ....... ....... 302
Instantaneous fuel consumption .. ... 38
Low fue l level sym bol ... .. .... .... . 35
Octane rating ... .. .... .... .... ... 301
Rec ommendat ion ... .... ... .. .... 301
Refuel ling .. ...... .... .... .... ... 303
Reserve ... ....... .... .... ....... . 14
Tank capacity ................. 14,378
Unlocking the fuel filler flap by hand 305
Fuse arrangement . ...... .... ..... .. . 358
G
Garage door opener (HomeLink®) ...... 191
Gas discharge lamps ...... .... .... ... 362
Gauges
Engine coolant temperature . ...... ..
12
Fuel gauge . ...... .... ... .... .... . 14
Speedomete r ..... .... ... .... ..... 14
Tac ho m eter . ... ... .... ... .... .... . 13
Trip odometer ... .. .... .... ...... .. 14
Gene ral il lustration
Instruments a nd controls ... .. .... ..
11
Generator
Warning/indicator lights ...... .... ..
18
G lossa ry of tire and loading te rmin ology . . .
325
Glove compartment ................. 109
cd changer ........... .... .... ...
109
Owner's Literature ................ 109
Gross Vehic le We ight Rating (GVWR) ...
375
H
Head restraints ....... ... .... .... ... 203
Adjusting ...... .... ... .... .... ... 203
Comfort head restraints ............ 91
Front seats ... .... .... .... .... .... 91
Rear seats .... .... .... ...... ... .. .
92
Headlight ra nge co ntrol ...... .... ... .. 36
Headlights .. .. .. .... .... ...... .... .. 69
Adaptive Light .................... 72
Defective .. ........... .... .... .... 26
Front fog l ig hts .................... 71
Vehicle operation Vehicle care Do-it-yourself service Technical data

______________________________________________ A_ l_,_ p _h_ a_ b_e _t_ic _ a_l _in _ d_e _ x __ lll
T
Tachometer . .... .... .... ... .... .... . 13
Technical modifications ...... ...... .. 383
T emperature
Climate controls ...... .... ..... .. . 117
Setting for the driver's and front passen-
ger's side ... ...... .... ... .... .. 117
Tether strap ........................ 263
Securing the upper tether strap 264
The first 1,000 miles (1,500 km) and
afterwards .. .... .... ... .... .... 277
Tie -down eyelets ... .. .... ...... . 100, 207
Tips for the environment
Saving fuel ... .... .... ... .... .... 104
Using the air conditioner only when necessary ... .... ....... .... .... 123
ti ptron ic® . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Automatic Shift Lock (ASU ... .... .. 165
Driving .. .. .. .... .... ........... 163
Dynamic shift program . ...... ... .. 166
Fail -safe mode ... .... .... ...... .. 168
Kick -down ..... ...... .... ... .... . 166
Manual shift program ........ .... . 167
Se lector lever . .... .... ... .... .... 164
Tire pressure .. ... .. .... .... ...... .. 331
Tire pressure monitoring system ... .... 41
Displaying tire pressures . .... .... .. 43
Initialize wheels ... .... ... .... .... . 45
Learning process .................. 44
Loss of air pressure ............. 20, 42
Malfunctions .... .... .... .... .... . 45
Sensors ....... .. .... .... ...... .. 338
Controls and equip­ ment Safety first Stor
ing tire pressures ....... .... ... 44 Towing
Tires and wheels .. .... .... .... ... 338 Tow truck procedures .... .... .... . 366
Valves ..... .. .... .... .... .... ... 338
Towing hitch
Tire service life ........ .... ... .. .... 335
Audi parking system .............. 180
Tires ........ .... ... .... .... .... ... 324 Towing loop ..... .... .... ... .... .... 367
Replacing .. ...... .... ...... ... .. 338 front .... ... .. .... .... ...... ... .. 367
Service life . ........ .... ... .. .... 335 rear ............................ 368
speed rating letter code .. ... .. .... 338
Trailer towing . .... ... .... ...... ... .. 282
Tire manufacturing date ...... .... . 338
Operating instructions . ...... ... .. 283
Tire specifications ................ 337
Technical requirements ... .... 282, 283
Tread depth ........ ....... ...... 335
Trailer towing tips ................ 284
Uniform tire quality grading .... .... 340
Train
Winter tires ... .... .... .... .... ... 341
Transporting your vehicle .. .... .... 369
Tires and ve hicle load limits . ...... ... 333
Transmission
Tires and wheels
See Automatic transmission .. ...... 163
Checking tire pressure .... .... .... 331
Transport Canada . .... ... ........ ... 208
Cold tire inflation pressure .. .... ... 328
Dimensions ...................... 336 Transporting your vehicle
.... .... ... . 369
Tread Wear Indicator (TWI) ....... .... . 335
Genera l notes .................... 324
G lossary of tire and loading termino logy
325
New tires and whee ls .. .... .... ... 336
Replacing .... .... .... .... .... ... 337
Snow chains ........ .... ... .. .... 342 Trip computer
Fuel consumption .... .... .... .... . 38
Mi leage ... ........... .... .... .... 38
Sing le-trip memory .. ........ .... .. 39
Total-trip memory .. ...... ..... .. .. 39
Tire pressure monitoring system .... 338
Tires and vehicle load limits .. ...... 333
Wheel bolts .. ....... ...... .... ... 343 Trip
odometer ..... .. .... ....... ... .. 14
What does it mean when dEF appears in the trip odometer disp lay? ......... 14
Winter tires ......... ...... .... ... 341 Trunk
Tires/Wheels
See Rear lid ... .... .... ... .... .... . 55
Low aspect ratio tires . .... ........ 343 Trunk
escape handle .. .... ... .... .... 348
Tools ... .... .... ... .... .... .... .... 350 Turn signals
... .. .... .... .... ...... .. 73
Torn or frayed safety be lts .. .... .... .. 212 Warning/indicator
lights .. ........ .. 19
Touch-up paint . .... ... .... .... .... . 292
Vehicle operation Vehicle care Do-it-yourself service Technical data