2010 AUDI S8 steering wheel

_________________________________________ I_ n_ t_ e_ ll_,igent technology ,__E~-
acting on the vehicle, the brake pressure and the steering angle are
all meas ured.
The direction in which the driver wishes to travel is determined with
the aid of the steering angle and vehicle speed and is continually
compared with the actual behavior of the vehicle. If the two do not
match, for example , when the vehicle starts hydroplaning on a wet
road, ESP will automatically brake the appropriate wheel to correct
the problem.
The vehicle is then stabi lized by the forces acting on the whee l during
braking. If the vehicle is
oversteering (rear tends to skid out of the
turn), the brakes are main ly applied on the wheel that is on the
outs ide of the curve. In the case of a vehicle that is
understeering
(tendency to slide out of the curve), the brakes are applied at the rear
wheel that is on the inside of the curve. An acoustic signal ind icates
when ESP brake application cuts in =>
&.
Th e system operates across the entire speed range in combination
with the ABS system=>
page 256. If the Anti-Lock Brake System
(ABS) malfunctions, the ESP will be out of action as we ll.
Activation
When you turn on the engine, ESP will automatically be activated and
will perform a self-test .
The system can be activated or deactivated by pressing the button
=>
page 252, fig. 234 . The warning light comes on when the system
is switched off=>
page 16.
Normally, the ESP should always be on, however, it may be advanta­
geous to turn off the sys tem in certain special cases when some
degree of whee l spin is desired such as:
• when driving with snow chains
• when driving in deep snow or on a loose surface (to allow the
wheels to dig in to reach firm ground)
• when trying to "roc k" the vehicle free when it has become stuck.
The system should be reactivated once you are no longer in such situ­
ations.
Controls and equip­ ment Safety first Vehicle operation
Both the ABS and
EDS systems are still functioning even if the ESP is
switched off.
& WARNING
The Electroni c Stabilization Program is nevertheless subject to the
laws of physics. It is particularly important to pay attention to
this fact on wet and slippery roads. It is therefore important that
you always adapt your driving to the condition of the road and
traffic conditions. Do not allow the increased safety provided by
the Electronic Stabilization Program system to lull you into
accepting additional safety risks. •
Electronic differential lock (EDL)
The electronic differential lock monitors the rotational
speed of the drive wheels.
General notes
The electronic differential lock (EDL) helps the car to start moving,
acce lerate and climb a gradient on surfaces providing poor or almost
no grip . Without EDL, this would be difficult, if not impossible .
How the system works
The EDL operates automatically. It monitors the rotational speed of
the drive wheels on an axle with the he lp of the ABS sensors
=>
page 256 . If a noticeable difference in rotational speed between
the drive wheels on one axle is detected (e .g . on slippery ground
on
one side),
the spinning wheel is braked, thereby transferring power to
the other drive whee l or wheels (all -wheel drive). This is done up to a
speed of about 60 mph (100 km/h) . Noises from the brake system
signal that wheel spin is being contro lled.
Driving off
When driving off, always be sure to keep road conditions in mind as
you accelerate. If one drive wheel spins because it is on a surface with
less grip , gradually increase the pressure on the accelerator peda l
Iii>
Vehicle care Do-it-yourself service Technical data

_________________________________________ I_ n_ t_ e_ ll_,igent technology ,__E~-
The brake assistant will not be operative if there is a malfunct io n in
t he ABS.
& WARNING
Plea se remember that the accident ri sk a lwa ys increa se s if you
d riv e too fast , especially in corne rs or on a slippery road , or if you
follow the vehi cle ahead of you too closely . In cre ased ri sk of an
accident cannot be compensated for e ven by the brake ass istant,
so always maintain a safe speed. •
Servotronic® - advanced power
steering system
The power steering systems uses th e power of the
running engine to allow precise steering with little effort.
Th e advanced Servotronic ® power steeri ng system senses the road
speed and electronically ad justs power assistance to provide
c omfortable and safe s teer ing response exa ctly matched to the
vehicle speed.
Powe r steering will not work if the engi ne is of f. As a resu lt, the
steer ing wheel will be hard to turn .
The power stee ring fluid level is checked during the sched uled main­
t enance se rvi ces.
0 Note
If the re is an ele ct roni c mal func tion, servotroni c will still f unction
like a conventional power steer ing system, prov iding a constant
steeri ng support force tha t is no lo nger propo rt iona te to the ve hicle
speed. This is most not iceab le when turn ing the steer ing wheel at low
speeds (for example when parking), -more effort will be required
than usual.
Controls and equip­ ment Safety first Vehicle operation
•
Be aware of the d ifferent than usual steering response and adjust
your stee rin g for ce acco rdi ng ly.
• Have the prob lem checked and set r ight by an A udi dea ler as soon
as possib le.
[ i ] Tips
• Whe n the eng ine is runni ng, neve r hold t he steering w hee l turned
all the way to the right or to t he left for longer than 15 seconds. The
powe r stee ring pump wi ll over heat the hydra ulic fluid if yo u keep
holding the steeri ng w heel tur ned all the way. This is likely to damage
the power steering system .
• If the power stee ring system shou ld fa il entire ly, or if the engine
is not r unning (fo r examp le, while being towed), you w ill still be a ble
to steer the vehicle. However,
considerably more effo rt will be
req uired to do so .
• If the power steering system s hou ld have a lea k, or is not func­
tioning properly, contact your authorized Au di dea ler immediate ly .
• The power steering system requ ires a specially formulated
hydra ulic fl uid. The power stee ring re se rvoir is t he one located mos t
forward o n the left side of the eng ine compa rtment=:>
page 290 . The
correct fluid leve l in the reservoir is important fo r proper f unctioning
of t he power steering. •
Dr"ving with your quattro®
With All Whee l Drive, all four wheels are driven .
General information
With All Wheel Drive, power is d istributed to all four wheels. This
happens au tom atically depending on you r d rivi ng style a nd the roa d
conditions at the time. See also=>
page 253, "Electronic different ial
lock (ED L)".
Vehicle care Do-it-yourself service Technical data

Trailer towing
"---------------------------------------------------
Speed
T he higher the speed, the more difficult it becomes for the driver to
control the rig. Do not dr ive at the max imum permiss ible speed.
Reduce your speed even more if load, weather or wind conditions are
unfavorable -part icu larly when go ing downhill.
Reduce vehicle speed
immediately if the tra iler shows the slightest
sign of swaying.
Do not try to stop the swaying by accelerating.
Observe speed limits. In some areas, speeds for veh icles towing
trailers are lower than for regu lar vehicles.
Always apply brakes early. When driv ing dow nhill, shift in to a lower
gear to use the eng ine braking effect to slow the veh icle. Use of the
bra kes alone can cause them to overheat and fail.
Coolant temperature
Th e coolant temperature gauge~ page 10 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or turn off the air conditioner.
If the coolant temperature warning light in the instrument cluster
starts flashing
_f_ , pull off the road, stop and let the engine idle for
about two m inutes to prevent heat build-up.
& WARNING
Anyone not properly restrained in a moving vehicle is at a much
greater risk in an accident. Never let anyone ride in your car who is
not properly wearing the restraints provided by Audi.•
Trailer towing tips
Important to know
------------
Your vehicle handles differently when tow ing a trailer because of the
additiona l weight and different weight distribution. Safety, perfor- mance and economy will greatly depend on how carefully you load
your trailer and operate your rig.
Before you actually tow your trailer, practice turning, stopp ing and
backing up in an area away from traffic. Keep practicing until you have
become completely familiar with the way your vehicle-t railer comb i­
nation behaves and responds.
Backing up is difficult and requires practice. Backing up with a trailer
generally requires steering action oppos ite to that when backing up
your vehicle without a trai ler.
Maintain a greater distance between your vehicle and the one in front
of you. You will need more room to stop. To compensate for the
trailer, you will need a larger than normal turning radius .
When passing, remember that you cannot accelerate as fast as you normally would because of the added load . Make sure you have
enoug h room to pass. After passing, allow plenty of room for your
trai ler before changing lanes again.
Avoid jerky sta rts, sharp tur ns or rapid lane changes.
W Tips
• Do not tow a trailer during the break-in per iod of your veh icle.
• If you tow a trai ler, your Audi may require more frequent mainte­
nance due to the extra load
~ page 361. •
Parking on a slope
Do not park on a slope with a trailer. If it cannot be
avoided, do so only after doing the following:
When parking:
- Apply the foot brake.
- Have someone p lace chocks under both the vehicle and the
trailer wheels . ._

________________________________________________ T_ i_ re _ s_ a_ n_d_ w_ h_ e_ e_l _s _ ....... JIII
Tire service Life
The service life of tires depends on a lot of different
things including proper installation and balancing,
correct tire pressure and driving style.
_/l
l '-------- ,)
Tread Wear Indic ator (TWI )
Fig. 2 54 T ir e t read :
t rea d we ar i ndicators
( T WI)
Fig . 255 Rotati ng
t ir e s fo r mo re e ve n
w ea r
Th e or iginal t ires on your veh icle have 1/16 inch ( 1.6 mm) high "wear
ind icators"=> fig . 254 running across the tread . Depending on the
make, there w ill be six to e ight of them evenly placed around the tire.
Marks on the t ire sidewall (for example "TWI" or other symbols) indi­
cate the posit ions of the tread wear indicators . Worn tires must be
replaced. Different fig ures may apply i n other countr ies => ,& .
Vehicle OP-eration
Tire pres sur e
Incorrect tire pressure ca uses premature wear and can cause sudden
tire blow-out . For this reason, tire pressure m ust be checked at least
once a mo nth =>
page 313.
Driv ing style
Driving fast around curves, heavy acceleration and hard braking
increase tire wear .
Rotating tires for more even wear
For all four tires on your vehicle to have the same service life, we
recommend that the fron t and rear tires a re rotated accord ing to the
t ire manufact urer's suggested tire rotation intervals . Please
remember the follow ing:
• T ire ro tat ion interva ls may differ from the ve hicle service in tervals
outlined in your Warranty
& Maintenance book let.
• The longer one tire is used in one location on the veh icle, the more
i t wears at certain points; therefore, we recommend that you follow
the t ire manufacturer's suggested tire rotation intervals.
• Vehicles with front-whee l drive experience more tread wear on the
front wheels compared to all-wheel dr ive (quattro
® ).
• Please rotate tires as sh own => fig. 255.
• Extra care must be taken when rotat ing d irection-spec ific tires
=:> page 341.
Wheel balancing
The w heels on new vehicles are balanced . H oweve r, various sit uat ions
dur ing everyday dr iving can cause them to become unbalanced,
resulting in vibrations yo u can usu a lly fee l through the s teering
wheel.
Unbalanced whee ls must be rebalanced to avoid excessive wear on
steering, suspension and t ires . A wheel must also be rebalanced
when a new tire is installed. _,,
Vehicle care Do-it-yourselt service iTechnical data

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ nn
We ight-sensing mat .... .. .. .. . ... 232
When must the system be inspected? 217
Aircraft Transporting your vehicle .......... 353
All Wheel Drive ............ .. ...... . 257
Alloy wheels . .... .. .. .. .. .. .. ... ... 275
All-wheel drive
Winter tires ....... .. ............ 323
Alternator See Generator .................... 16
Anti-freeze See Engine coolant ...... .. .. .. ... 296
Anti -lock brake system
How the ABS system works ......... 256
Warning/indicator lights ... .. ..... . 19
Anti-Sl ip Regulation System (ASR)
How the system works . .. .. .. .. .. . 254
Anti-theft systems Anti-theft alarm system ....... ... .. 52
Electronic immobilizer ............. 41
Ashtray Front .............. ...... ........ 96
Rear ........ .. .... .. ... . .. .... .. 96
ASR How the Anti-Slip Regulation System
works ..... .. ... .. ... ... ....... 254
Audi Service Repair Manuals and Literature
361
AUTO mode AC climate control ....... .... .. .. . 106
Auto Safety Hotline ... ... ... . .. ..... 195
Auto-Check Contro l .............. .... . 26 Automatic car wash
See Washing ............... ... .. 271
Automatic Shift Lock (ASL) ... .. .. .. ... 156
Automatic transmission 6-speed automatic transm iss ion .. .. 154
Automatic Sh ift Lock (ASL) ....... .. 156
Dr iv ing ................. ...... .. 154
Dynamic shift program ......... ... 157
Emergency release for selector lever . 159
Fail-safe mode ................ ... 159
lg nition key safety lock .... ..... ... 119
Kick-down . ............ .. ....... 157
Manual shift program .. .. .. .. .. .. . 158
Selector lever ............ ........ 155
Shift buttons ... ...... .. .. .. ..... 159
Steering wheel with tiptronic ...... . 159
Average speed ........... .. .......... 36
Avoid damaging the vehicle .. ....... .. 263
B
Background lighting ... . .. .. .......... 67
Battery . .. .. .. .. .... ............... 300
Battery location inside the luggage
compartment .................. 301
Charging ........................ 303
Important warnings when working on the battery ..... ........... ...... .. 301
low . .. .. .. .. .. ...... .. ......... 258
Rep lacing the battery . ... ......... 304
State of charge ..... .. ........... 258
Winter operation . .... ... ..... .... 300
Working on the battery .... ... .. .. . 301 Before driving
.. .. ... ... ... .... ... .. 187
Blended gasoline ................. .. 283
Body cavity sealing .............. . ... 276
Booster seats ......... ............ . 239
Brake fluid
Changing the brake fluid .......... . 300
Checking the brake fluid level ....... 299
What is the correct brake fluid level?. 299
What should I do if the brake fluid warning
light comes on? . .. .. .. .......... 299
Brake system Anti-lock brake system .. ........... 19
Brake assistant .. .. .. .. .. ...... .. 256
Brake booster ........... ... ..... 256
Brake fluid .. .. .. ................ 299
Brake fluid specificat ions for refill and
repla cemen t .................. . 300
Brake light defective . .... .. .. .. .. .. 24
Brake pads ..................... . 262
Electromechanical parking brake .... 123
Fluid reservoir . .......... ... .. ... 299
How does moisture or road salt affect the
brakes? ... .. ................ .. 254
Malfunction ...................... 28
Warning/indicator lights ... .... .. .. 20
Worn brake pads symbol ........... 32
Break-in period .... . .. .............. 261
Brake pads . ... ................ .. 262
Tires ..... .................... .. 261
Bulbs ............ .... .. .... .... .. . 346
Bumper cover Caution when parking near a parking barri-er or curb . ... ................ .. 124
Automatic belt retractor .......... .. . 201 Battery voltage .. ........... ........ . 34
Controls and equip­
ment Safety first 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 ____________________________________________ _
Operate your vehicle economically and mini-
mize po llution .. .... ......... .. 263
Outside air pollution How to prevent from entering the vehicle .
109
Outside mirrors ............ .. .... ... 74
Outside temperature display . .......... 23
p
Paint
Touch-up 274
Paint No ......................... .. 356
Park ing .. .. .. .. .. .. ...... ......... 124
Automatic transm ission .. ....... .. 154
Caution when parking near a parking barri- er or curb ............. ...... .. 124
Low bumper cover, spoilers and suspension .................... 124
Parking brake
See Electromechan ical parking brake 123
Parking on a decline (downhill) ... ..... 124
Park ing on an incline (uphill) ........ .. 124
Parts replacement . ........ ..... .... 363
PASSENGER AIR BAG OF F light ... .. .. . 218
Passenger's seat . . . . . . . . . . . . . . . . . . . . . 77
Passenger's seat memory ... .......... 85
Passive safety system ............. ... 186
Pedals . .. . .... .................... 192
Physical principles of a frontal collision . 198
Pockets .. .. ..................... .. 100
Polishing . ....................... .. 273
Power locking switch ................. 45 Power
locking system ...... .... .. .. .. 41
Conven ience open feature .......... S6
Locking and unlock ing the veh icle from
inside ............ ... .. .. .... .. 4S
Opening and closing the windows ... . 56
Rear lid/trunk lid . ................. 46
Remote control ........... .. .. .. .. 40
Selective unlock feature . ........... 44
Settings ..... .... .. .. .. .... .. .. .. 44
Unlocking and lock ing vehicle ....... 43
Power roof ............. .... .. ...... S7
Powe r seat
Contro ls ....... .......... .. .. .... 77
Massage funct ion .. ............... 79
Seat adjustment .................. 78
Upper thigh support ............ ... 78
Power s ide door closer ............ .. .. 45
Power steering . .. .... ............. . 257
Power sunroof
Emergency closing ... ... ... .... 58, 59
Power window switches ........... .. .. S3
In the dr iver's door ............. ... S4
In the front passenger's door ..... ... 5S
Reactivating the system . . . . . . . . . . . . 56
Power windows Settings ...... ... .. .. .. .. .. .. .... S6
Pregnant women Special considerations when wearing a safety belt .............. .. .. .. . 203
Programming the HomeLink ® universal re-
mote control ........ .... .. ..... 181
Proper occupant seating positions .. ... 188
Proper sa fety belt position ........... 202 Proper seating position
Front passenger .. .............. .
Occupants ... .. ... ............. .
Rear passengers
Q
189
188
190
Quartz clock . . . . . . . . . . . . . . . . . . . . . . . . 11
quattro ®
See All Wheel Drive . ............. 257
Question What happens to unbelted occupants? ...
199
Why safety belts? ... ......... ... . 197
R
Radiator fan ............ ... .. .. .... 299
Rain sensor ................. ...... .. 70
Rain sensor defective . .. .... .......... 34
Reading lights Front . ........................ .. 65
Rear ..... ............. .......... 66
Rear ashtray ..... ................. .. 96
Rear center console .. ...... .... .. .... 98
Rear climate controls . .. ............. 114
Air distribution . ................ . 114
Automatic operation ......... .. .. 114
Controls . . . . . . . . . . . . . . . . . . . . . . . . 114
Heated seats ........ .. .... .... .. 114
PASSIVE .......... ... . .. .. .. .. .. 114
Switching on and off ........ .. .. .. 114
T emperature ......... ... .. .... .. 114
Ventilated seats ... .............. 114

___ A_ l_. p_ h _ a_b_ e_ t_ic _a_ l_ in_ d_e _ x ____________________________________________ _
Driver's seat memory .. ... ..... ... . 84 Side airbags
Front passenger's seat . .. ... ... .... 77 Description . .................... 225
Front seats .................. .... 76 How they work .................. 226
Head restraints . .. .. .. .. .. .... 81, 191 Side assist
Lumba r support .. .. .............. 80 Activating and deactivating . .. ..... 145
Power seat . .. .. .. .. .. .. .......... 77 Description . .. .... ......... .... . 145
Safety guidelines . ...... .......... 76 Informational and alert stage signals 147
Seat belts Messages in instrument cluster display . .
Why YOU MUST wear them ........ 197 152
Seat memory . . . . . . . . . . . . . . . . . . . . . . . 84
Seat position Inco rrect seat position . .. ......... 191
Seating capacity . .. .. .. .. .. ...... .. . 197
Seating position Driver ............. ...... .... ... 188
Front passenger ................. 189
How to adjust the front seats .. ..... 189
Occupants . ................... .. 188
Rear passengers
Seats Number of seats 190
197
Selective unlock feature ...............
44
Selector lever ... ................... 155
Service and disposal Safety belt pretensioner ........... 205
Service interval display .. .. .... ........ 25
Service position Windshield wipers ............. ... 72
Servotronic MMI
settings ............. .. .. .. . 150
Operation .. ............. .... .. . 147
Safety tips .... ........... .. ..... 152
Sensor detection area ...... .. .... . 146
Side curtain airbags ... .............. 228
Description ... ................. . 228
How they work ...... ...... ..... . 229
Safety instructions ... ..... .. .. ... 229
Side marker l ights ........... .. .. .. .. 60
Ski sack . .. .... ............. ...... .. 91
Snow chains ....................... 324
Sockets ......................... 97, 98
So lar blower fan/solar roof .... .. .... . 112
Sound system disp lay
Dr iver information display ...... .. .. 23
Sources of in formation about child restraints
and their use ................... 251
Spare wheel . ............. .. ... ... . 334
Speed control system
See Adaptive Cruise Control . .. .. .. . 128
Power steering .................. 257 Speed rating letter code ........ .. .. . 320
Shift buttons . .. ..... ... ........ ... 159 Speed warning system .............. .. 35
Ship Speedometer ....
................ ... 12
Transporting you r vehicle ........ .. 353 Sport Suspension
See Adaptive A
ir Suspension ....... 176
Starting off with a trai ler .......... ... 125
Starting the engine ............. 118, 119
What should I do if the engine does not start? .... .... .. .. .. .. .. .. .. .. 119
Steering . .. .. .. ................. .. 117
Adjusting steering column .. ..... .. 117
Easy entry feature ......... ... .. .. 118
Locking the steering .............. 118
Malfunction . ... .. .. .............. 31
Steering wheel heating ...... .. .. .. .. 108
Steps for determining correc t load limit 315
Stopping the engine .... ............. 120
Storage .. .. .. .. ...... ............. . 98
Compartments in the door trim panels ...
100
Compartments in the rear doors .. .. 100
(upholder . .. ...... .............. 94
(upholder rear center armrest ....... 95
Glove compartment .......... ... .. 99
Luggage compartment . .. ... .... .. 102
Ski sack ....... ... .... .. .. .. .. .. . 91
Small objects ....... ...... .... .. 100
Sun shade ................ .... ... ... 68
Sun visors .................. ... .. .. . 68
Switches Emergency flashers . . . . . . . . . . . . . . . 63
Power sunroof ............. .. .. .. . 57
Rear window defogger ...... .... .. 113
Symbols Red ..... ............. .......... 28
Yellow .................. ... ... .. 32

___________________________________________ A_ l::.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ _
Rain sensor .... ..... .. ... .. .. .. .. 70
Service position .................. . 72
Was he r r eservo ir ............. ... . 305
Wi nter driving
Windows . .. ................. .. . 274
Wi nte r ope ra tion
Batte ry ............ .. .. .. .. .... . 30 0
Cooling system ... ..... ... ... ... . 2 96
Steering wheel heat ing .... ... .. .. . 108
T ir es ... ... .. .. .. .. .. .. .. .. ... .. 257
W inte r tir es .. .. .. ............... .. . 3 23
All-whee l dr ive . ............... .. . 3 23
Wiper blades
See Windshie ld w ipers ............ . 73
X
Xenon-Lights ... ....... ... .. .... ... . 346
y
Yellow symbols ................. ... .. 32
Controls and equip­
ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data