2010 AUDI S8 power steering

Instruments and controls
General illustration
(D Power window switches . .. .. .. ... .. ... .. ... ... . .
@ Door handle
@ Power locking switches . .. .. ......... .. .. .... ... .
© Adjuster control for outside mirrors .............. .
® Light switch ............... . ... ..... ....... ... .
© Control lever for:
- Cruise contro l ............ .... ... . ... ....... .
- Adaptive Cruise Control . ................... .. .
0 Air outlets .... .... .. .. .. ... ... ............. .. .
@ Control lever for:
- Turn signal and high beam .................... .
- Lane assist ................ ...... .. .. .. .. ... .
® Multifunction steering wheel with:
- Horn
- Driver's airbag ....................... ....... .
- Shift buttons .... .. .. .. .. .... ............... .
- Button for steer ing whee l heating . .. .. ... ...... .
@ Instrument cluster .................. .... ... ... .
@ Switches for
- Windshield wiper/washer ................ .. ... .
- Tr ip computer .. .......... . .. .... .. .. .... ... .
@ Steering lock/ignition/starter switch .............. .
@ Buttons for:
- Advanced Parking System .... .. .... .. ...... ... .
- Side ass ist ........... ........ ... ..... ... ... .
- Power sunshade
@ MMI Display
Controls and equip ­
ment Safety first
53
45 74
60
126
128
111
64
142
210 159
108 10
70
36
118
161
145
68
Instruments and controls
@ Buttons/Indicator light for:
- Electronic Stabilization Program (ESP)
- PASSENGER AIR BAG OFF
- Emergency flashers .. .. .. .. .. .... .. ......... .
@ Storage tray .................. .. .. .. ......... .
@ Glove compartment .... .... .. .. .... ........... .
@ Front passenger 's airbag .................... .. . .
@ Sh ift lever for automatic transmission ........... . .
@ Climate controls . .. .................... .... ... .
@ Rear window defogger switch .. .. .. .. .. .... ..... .
@ Ashtray with cigarette lighter ................... .
@ IS TART ]-/IS TOP]-button . ... ................ ... .
@ MMI Terminal
@ Storage with cup holder ..... .. .. .. ............. .
@ Electromechanical parking brake ... .. ...... ..... . .
@ Da ta Link Connector for On Board Diagnostics (OBD II)
@ Engine hood release ........................... .
@ Adjustable steering column ..................... .
@ Memory buttons (driver's seat) .................. .
@ Switch for
- unlock ing the fuel filler door ....... ....... .... .
- unlock ing the trunk lid
[ i ] Tips
252
63
100
99
210
154
105
113
96
120
94
123 25
288 117
84
285
46
Operation of the Multi Media Interface (MMI) is described in a sepa­
rate manual. •
Vehicle care Technical data

llffl..__O_ n_ t_h _e_ r_o _ a_ d _________________________________________________ _
& WARN ING (con tinu ed)
inju ries to the hands, arms and head if the d river 's airbag
deploy s.•
Easy entry feature
The easy entry feature makes it easier to enter and exit
the vehicle by autom atically adjusting the steering
w heel .
Press the button @=> page 11 7, fig. 130 to turn t he easy
en try featur e on or off.
W hen the easy entry fea ture is tu rned on ( button depre ssed) , the
steering wheel moves up to the parked position w hen the ignition is
tu rned off. After you ente r the vehicle, the steerin g wheel moves to
the stored pos ition as soon as you turn on the ign ition .•
Ignition Lock and ignition switch
Ignition key positions
The e ngine can be started or turned off with the ignition
key .
Fig . 131 Ig nition
swit ch posit ions
Position @
The ig nit io n key can be inserted into the ignition switc h in this posi ­
ti on . This automatically unloc ks the steer ing co lumn lock. When the
ig nition key is removed, the steer ing colum n lock is a utomat ically
locked~ &-
Ignition on (D
Turn t he ignit ion key to this position and re lease it.
Starting the engine@
The engine starts w ith the key in this position . Major electr ical loads
are te mpora rily tur ned off .
Ignition off 0
Turn the ignit ion key to this position and re lease i t.
& WARNING
• Never remove the key from the ignition lock while the vehicle
is moving . The steering wheel will lock , causing loss of control.
• If you have to leave your vehicle, even for just a minute, always
remove the ignition key and take it with you. This is especially
important if you are going to leave children unattended in the
vehicle. The children could start the engine or use other vehicle
controls . Unsupervised use of vehicle controls (for example, power
windows ) can cause serious personal injuries.
(D Note
• If the i symbol in the display blinks, there is a mal function in t he
elec tronic s tee ring co lumn lock. Follow the in struc tions in
~ page 31 , "Steer ing malfunction~" .
• If th e ~ sy m bol in the d is pla y blink s, t here i s a m alf unc tion in the
electronic ignition lock. Follow t he inst ru ctions in =>
page 31, "Igni-
t io n lock mal fu nctio n
.:2.". .,

______________________________________________ A_ u_ t_ o_ m_ a_ t_ ic_ t_r _a _n_ s_m _ i_s _s_ i_o _n _ ___._
Appli es to ve hic les : wi th tip tro nic -st ee rin g w he el
Steering wheel with tiptronic ®
The shift buttons on the steering wheel allow the driver to
shift gears manually.
Fig. 173 Steering
wheel: S hift buttons
-To downshift, touch the button on the left 0-
- To upshift, touch the button on the right G).
The shift b uttons are activated when the selector lever is in D, Sor in
the manual shi ft program (tiptronic) .
Of course, you can continue to use the manual shift program with the
selector lever on the center console .•
Fail-safe mode
If tiptronic® suffers a malfunction, the foil-safe mode
maintains minimum driveobility .
In the event of particular system malfunctions, the automatic trans­
mission switches to the fail-safe mode. This is signalled by all the
segments in the display illuminating or going out.
You can continue to move the selector lever to all positions . The
man ual shift prog ram (tiptronic) is switched off in the fail-safe mode.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
In selector lever positions D and Sand in the manual shift program,
the t ransm ission remains in 3rd gea r if 1st, 2nd or 3rd gear was
engaged previously. The transm ission remains in 5th gear, if 4th, 5th
or 6th gear was engaged previously.
T he next time you dr ive off or start the engine, 3rd gear is engaged.
You can cont inue to use reverse gear . But the electronic lockout for
reve rse gear is turned off.
0 Note
If the transmission switches to fail -safe mode, you should take the
vehicle to an authorized Audi dealership as soon as possible to have
the cond ition corrected .•
Emergency release for selecto r Lever
If the vehicle's power supply foils, the selector lever con
be released in on emergency .
Fig. 174 Remo ve the
as htray inse rt
~
Vehicle care Do-it-yourselt service iTechnical data

_________________________________________ 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

___ C_h_ e_c _k _i_n -=g :a,__ a_n_ d_ f_ i_ l _li _n _,g;._ __________________________________________ _
& WARNING (continued)
-Always use extreme caution to prevent clothing, jewelry, or
long hair from getting caught in the radiator fan, V-belts or
other moving parts, or from contacting hot parts. Tie back hair
before starting, and do not wear clothing that will hang or
droop into the engine.
• Minimize exposure to emission and chemical hazards=:>
/1::..
& WARNING
California Proposition 65 Warning:
• Engine exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproductive harm. In
addition, certain fluids contained in vehicles and certain products
of component wear contain or emit chemicals known to the State
of California to cause cancer and birth defects or other reproduc­
tive harm.
• Battery posts, terminals and related accessories contain lead
and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms. Wash hands after
handling.
0 Note
When adding fluids, always make sure that they are poured into the
proper container or filler opening, otherwise serious damage to
vehicle systems wi ll occur.
ci> For the sake of the environment
To detect leaks in time, inspect the vehicle floor pan from underneath
reg ular ly. If yo u see spots from oil or other vehicle fluids, have your
vehicle inspected by an authorized Audi dea ler.•
Engine compartment
Applies to veh icles: w ith 8 -cylinde r engine
Engine compartment overview : a-cylinder
engine
These are the most important items that you can check.
Fig. 241 Typical layout for containers, engine oil dipstick and engine oil filler
cap
© Windshield/headlight washer container (0 ) ....... .
@ Brake fluid reservoir ( ) .................. .. .. . .
® Engine oil filler cap ('l=r.) ............ .. .... .. .. . .
© Engine oil dipstick (orange) .............. .. . ... . .
© Power steering reservoir . .. .. .. .. .. ... .... .. .. . .
© Coolant expansion tank (-L ) ........... .. .. .. .. . .
305
299
294
293
257
297 ..

________________________________________________ F_ u_s _e_ s_ a_ n_ d_ b_u_ lb_ s _ __.1111
(]] Tips
You a re well adv ised to keep a supply of spare fuses in your veh icle .
Fuses with the proper ampere ratings are avai lab le at your Audi
dealer. •
Fuse Location, Instrument Panel left
Fig. 2 78 Fuse pa nel
la you t
Some of the equ ipment items listed a re opt io na l o r only availab le on
certain model configurations.
Note that the following table i s accu rate at the time of going to
pre ss and is subject to change . In the event of di scr epancie s, th e
label on the in side of the cover always takes precedence.
T he power wi ndows and the power seats are p rotected by cir cuit
breakers ,
which automatically reset after a few seconds after the
overlo ad -for e xamp le if a window is fro zen - has bee n remed ie d.
Equipment Amps
1 Garage door opener (Homelink) 5
Parking assist system 5
3
Pa rking assist sy stem 5
4
Headlight range control/light control devic e 10
Vehicle OP-eration
No.
5
6
7
8
9
10
11
1 2
13
14
1 5
16
17
1 8
19
20
2 1
22
23
24
25
26
27
28 29
Equipment Amps
Instrument cluster 5
Steering column electronics system control 10
Diagnostic co nnector 5
Diagnostic connector/oil level sensor 5
ES P contro l uni t/steer ing angle se nsor 5
Instrum ent cluster 5
Au di lane ass ist 10
B ra ke ligh t switch 5
Telephone/ cell phone 10
Vacant
Acces s/ st art cont rol m odul e
5
RSE system 10
Adaptive C ruise Control 5
Hea ted w asher je ts 5
Vacant
Tire pressure monitoring system *
5
Vacant
Bra ke light switch
5
Ce ll phone preparation 5
Horn 15
Wi ndshie ld wipe r system 4 0
Vacant
E le ctronic Stabilizati on Pro gram (E SP)
2 5
Vacant
Sw itch illumination
1
Vehicle care Do-it-yourself service iTechnical 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