2011 AUDI S8 steering wheel

ESP includes and/or works together with the
anti-lock brake assist system (ABS), brake as­
sist system, anti -slip regulation (ASR), elec­
tronic differential lock (EDL), dynamic steer­
ing* and electronic interaxle differential lock*.
ESP is switched on all the t ime . In certa in sit­
uations when you need less traction, you can
sw itch
off ASR by pressing the button above
the selector lever. Be sure to switch ASR on
again when you no longer need less traction.
Anti-lock braking system (ABS)
ABS prevents the wheels from locking up
when braking. The vehicle can still be steered even during hard braking . Apply steady pres­
sure to the brake pedal. Do not pump the ped­
al. A puls ing in the brake pedal indicates that
the system is he lping you to brake the vehicle.
Brake assist system
The brake assist system can decrease brak ing
distance.
It increases braking power when the
driver presses the brake pedal quickly in emer­
gency situations. You must press and hold the
brake pedal until the situation is over. In vehi­
cles with adaptive cruise control*, the brake
assist system is more sensitive if the distance
detected to the vehicle ahead is too small.
Anti-slip regulation (ASR)
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to
the road conditions. This makes it easier to
start, accelerate and drive up hills .
Electronic differential lock (EDL)
The EDL brakes wheels that are spinning and
transfers the drive power to the other drive
wheel or whee ls if the vehicle is equipped with
a ll whee l drive *. This function is available up
to about 75 mph (120 km/h).
I n extreme cases, EDL automatically switches
off to help keep the brake on the braked wheel
from overheating . EDL will switch on again au­
tomatically when conditions have returned to
normal.
Intelligent technology 191
Dynamic steering*
On vehicles with dynamic steering, ESP helps
stabilize the steering in certain situations.
Electronic interaxle differential lock
function*
T he electronic interaxle differential lock func­
tion activates when driving th ro ug h curves.
Braking is targeted toward the wheels on the
inside of the curve as needed. This he lps to
minimize front whee l skid, improves traction
and allows for more precise driving through
curves .
A WARNING
- ESP, ABS, ASR, EDL, dynamic steering*
a nd the electronic interaxle differential
loc k fu nction* cannot overcome the laws
of physics. This is especially impo rtant
on slippery or wet roads.
If the systems
begin acting to stabilize your vehicle, you
should immediately change yo ur speed
to match the road and traffic conditions .
Do not let the increased safety provided
by these systems tempt you to take risks.
Doing so will increase the risk of a loss of
veh icle contro l, collision and ser ious per­
sonal injur ies.
- Always adapt your speed to road, traffic
and weather conditions. The risk of los­
ing con trol of the vehicle increases when
driving too fast, espe cially through
curves and on slippery or wet roads, and
when dr iving too close to vehicles up
ahead. ESP, ABS, the brake assist system,
EDL, ASR, dynam ic steer ing* and the
electronic interaxle differentia l lock func­
tion* cannot prevent collisions.
- Always accelerate with special care on
even, smooth surfaces such as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that cannot al­
ways he lp to reduce the risk of loss of ve­
hicle contro l.
-
•
•

194 Intelligent technology
been damaged, the brake pedal must be
pressed considerably harder to make up
for the lack of booster assistance.
Servotronic ® -
advanced power
steering system
The power steering systems use the power of
the running engine to allow precise steering
with little effort .
The advanced Servotronic® power steering
system senses the road speed and e lectroni­
cally adjusts power assistance to prov ide com­
fortable and safe steering response exactly
matched to the veh icle speed.
Power steering w ill not work if the eng ine is
off . As a result, the steering whee l wi ll be hard
to turn.
The power steering fluid level is checked dur ­
ing the scheduled maintenance serv ices.
([) Note
If there is an electronic malfun ct ion, ser­
votronic
w ill still f unction like a conven ­
tional power steer ing system, providing a
constant steering support force that is no
longer proportionate to the vehicle speed.
This is most noticeab le when turning the
steer ing whee l at low speeds (for examp le
when parking), - more effo rt will be re­
qui red than usua l.
- Be aware of the different than usual
stee ring response and adjust yo ur stee r­
i ng fo rce accord ingly.
- Have the p roblem checked and set rig ht
by an Aud i deale r as soon as possib le.
(D Tips
- When the engine is runn ing, never hold
t h e steer ing whee l turned all the way to
the right or to the left for longer than 15
se conds. The power steer ing p ump w ill
ove rhe at the hydr aulic flu id if you keep
ho ld ing the steering whee l turned all the way
. This is likely to damage the power
steering system .
- If the powe r steering system sho uld fai l
entirely, o r if the engine is not runn ing
(for examp le, whi le being towed), you
w ill sti ll be able to steer the veh icle.
However,
considerably more effort will
be required to do so.
- If the power steering system sho uld
have a leak, or is not functioning proper­
ly, contact your author ized Audi dealer
immed iately.
- The power steering system requ ires a
specially fo rmu lated hydraulic fluid. The
powe r stee ring fluid reservoir is locat ed
in the engine compartment
Q page 224.
T he corre ct fl uid level i n the reservoir is
impo rta nt fo r proper fu nctioning of the
powe r stee ring .
Driving with your
quattro ®
With All Wheel Drive, all four wheels are driv­
en .
Gen eral information
With A ll W heel Drive, power is distributed to
all four wheels. This happens automatically
depending on your driving style and the road
condit ions at the time. See also
Q page 190.
With the sport different ial*, powe r distribu ­
tion to the rear wheels is variable and can be
adjusted with Audi drive select*
Q page 106 .
Winter tires
When driving in the winter, yo ur vehicle with
All Wheel D rive has an advantage, even w ith
r egular tires . In wi nter road conditions it may
be advisable to mount winter tires (or all-sea­
son tires) for improved driveability and brak­
i ng : these tires must be mo unted o n
all four
wheel s. See also q page 253, Winter tires.
Tire chains
Where tire chains are mandatory on certa in
roads, this no rma lly also app lies to veh icles
with All Wheel D rive
q page 254, Snow
chains .

-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items wh ich may be rep laced)
of automa tic tra nsmission, power steering,
power br akes, power w indows, power sea ts,
radio, and heater, to the ex tent that these
items are avai lab le as factory -installed eq uip ­
ment (whether installed or not).
Aspect ratio
means the rat io of the height to the w idt h of
the tire in percent . Numbers of 55 o r lower in ­
d icate a low sidewall fo r improve d steer ing re ­
sponse and better overall handling on dry
pavement.
Bead
means the pa rt of the t ire t hat is made o f
s teel wires, wrapped o r reinforce d by ply cor ds
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
com ponents in the bead .
Cord
means the strands forming the plies in the
tire .
Cold tire infl ation pres sure
means the tire pressure recommended by the
vehicle manufacturer for a t ire of a designated
size that has not been dr iven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure
i s measu red or adjusted.
Tire s an d wheel s 239
-If you notice un usua l vibration or if the
veh icle pulls to one side when driv ing, a l­
ways stop as soon as it is safe to do so and check the wheels and tires for dam­
age.
Curb weight
mea ns the we ight of a motor ve hicle w it h
standard equipment in cl ud ing t he maximum
capacity of fuel, o il, and coolant, ai r cond i­
tion ing and addi tional weig ht o f optiona l
equipment .
Extra load tire
means a t ire design to operate at h igher loads
and at higher inflation pressures than the cor­
r espondi ng s tan dard tire. Extra load tires may
be identified as "X L", "xl", "EXTRA LOA D", o r
"R F" on the sidewall .
Gross Axle Weight Rating ("GAWR")
means the load-carry ing capac ity of a s ingle
axle system, measured at the tire-ground in­
te rfaces .
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
t h e ve hicle.
Groove
means the space between two adjacent tread
ribs.
Load rating (code )
means the maximum load tha t a t ire is rate d
to ca rry for a given inflation press ure. Yo u
may not find this information on all tires be­
ca use it is not required by law.
Maximum load rating
me ans the loa d ra ting f or a t ire a t the maxi­
mum pe rm issi ble inflat ion pressure for that
ti re .
•
•
...

248 Tires and wheels
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv·
ing style.
F ig. 1 86 Tire tread: tread wea r ind icators (TWI)
( r------ ,1
\ ...__ _____ ____,.
F ig. 1 87 Rotat ing t ires for more ev en wea r
Tread Wear Indicator (TWI)
The origi na l t ires on your veh icle have
1/16 inch (1.6 mm) high "wear indicators"
c::> fig . 186 running across the tread. Depend ·
i ng on the make, there will be six to eight of
them evenly p laced around the t ire. Marks on
the tire sidewa ll (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn t ires must be replaced .
Different fig ures may apply in o ther countries
c::> & .
Tire p ressure
Incorrect tire pressure causes premature wear
a nd can cause sudden t ire blow-out. For th is
reason, tire pressure must be checked at least
once a month
c::> page 244 .
Driving style
Driving fast aro und curves, heavy acce leration
and hard braking increase tire wear.
Rotating tires for more even wear
F o r all four tires on your ve hicl e to h ave the
same service life, we recommen d that the
front and rear t ires are rotated according to
the tire manufact urer's suggested tire rota·
tion intervals. Please remember the follow­
ing :
- Tire rotation intervals may differ from the
vehicle service inte rva ls o utlined in your
Warranty
& Maintenance booklet .
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points; therefore, we recommend that y ou
follow the tire manufacturer's suggested
tire rotation intervals .
- Veh icles w ith front-wheel dr ive experience
more tread wear on the fro nt w heels com·
pa red to all-wheel drive (quattro ®).
- Please rotate tires as shown
c::> fig. 187.
-Extra care must be taken when rotating di·
rection-specific tires
c::> page 267 .
Wheel balancing
The wheels on new ve hicles are balanced .
However, various situations during eve ryday
driving can cause them to become unba l·
anced, resulting in vibrat ions you can usually
feel t hrough the steer ing wheel.
Un balanced whee ls must be rebalanced to
avoid excessive wear on steering, suspension
and t ires. A whee l m ust also be reba lanced
when a new tire is insta lled.
Incorrect wheel alignment
Incor rect wheel alig nment can cause exces­
sive tire wear, impai ring the safety of the veh i·
de . If tires show excessive wear, have the
whee l alignment checked by an authorized
Audi dealer or qualif ied workshop .
All Wheel Drive
Vehicles with q uattro ® mus t always have tires
of the same size, construction and tread type .
For details see
c::> page 194 . ..,.

remain continuously illuminated. This se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illuminat­
ed, the system may not be able to detect or
signal low tire pressure as intended . TPMS
malfunct ions may occur for a variety of rea­
sons, including the installation of replace­ ment or alternate tires or wheels on the vehi­
cle that prevent the TPMS from functioning
properly . Always check the TPMS malfunct ion
tellta le after replacing one or more t ires or
wheels on your vehicle to ensure that the re­
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 189 Display : underinflatio n warning
Fig. 190 Display: System malfu nctio n
Using the ABS sensors, the tire pressure moni­
toring system compares the tire tread circum­
ference and vibration characteristics of the in­
dividual tires . If the pressure decreases in one
or more tires, this is indicated in the instru-
Tires and wheels 257
ment cluster with a warning symbol [I) and a
message
r::!) fig. 189.
The tire pressure monitoring system must be
reset via MMI each t ime the pressures are ad ­
justed (e.g. when switching between partial
and full load pressure) or after changing or re­
placing a tire on your vehicle
r::!) page 258. You
can find the recommended tire pressures for
your vehicle on the label on driver's side 8-pil­
lar
r::!) page 242 .
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tir e pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
r::!) page 258 .
Warning symbols
[I) Loss of pressure in at least one tire co& .
Check the tire or tires and replace or repa ir if
necessary. The indicator light
[I) in the instru­
ment cluster also illuminates
r::!) page 11.
Check/correct the pressures of all four tires
and resetTPMS via MMI.
lli§ffl (Tire Pressure Monitoring System) Tire
pressure! System malfunction.
If llilffl appears after switching the ignition
on or while driving co
fig. 190 and the indica­
tor light
[I) in the instrument cluster blinks
for approximately one minute and then stays
on, there is a system malfunction . See your
authorized Audi dea ler as soon as possible .
A WARNING
-If the tire pressure indicator appears in
the instrument cluster display , one or
more of your tires is significant ly under­
inflated . Reduce your speed immediately
and avoid any hard steering or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures . In­
flate the tire pressure to the proper pres-
sure as indicated on the vehicle's tire .,.

Fuse panel@ (brown)
No. Equ ipment
1 H eadlight contro l switch
I 2
Ignition lock (key identifica-
tion)
3
Rear door control mod ule
(driver's side)
5 Horn
6 Interior lights (head liner)
Steering column lever, mul-
8
tifunction steering wheel
controls, steering wheel
heating
10
Power steering column ad-
j ustment
11 Driver door control module
12
D iagnostic co nnector, light/
rain sensor
Power steering column ad-
justment
15
P ower stee ring, A/C com-
pr esso r
16 Brake booster (VS FSI)
Fuse panel © (black )
No. Equipment
1 F ront seat heating
2 Windshield wiper
3 Fr ont exterior lighting
4 Sun roof
5 Dr iver power window
6 Driver seat (pneumatic)
7 Panoramic sunroof
8 Dynamic steering
9 Fr
ont exterior lighting
I 10
Windshield/headlight *
washe r system
11
Rear power w indow (driver's
side)
12 Panoramic sunroof
Amp s
5
5
7,5 15
7,5
10/5
5
7,5 10
25
20
15
Amps
30 30
30
20
30
15
20 35
30
35
30
4 0
Fu se s and bulb s 269
Front passenger side cockpit fuse
assignment
Fi g. 2 07 Fro nt passe nger s id e co ckpit: f use pa nel w it h
plast ic brac ket
Fuse panel ® (black)
No . Equipment Amps
1 Anti-theft alarm system 5
2
Transmission control mod-
15 ule
3 Front climate control fan 40
4
Engine supply 35
6
Engine cont ro l module 5
7
Front passenger door con-7,5
t rot module
8
Fron t passe nger power w in-
30 dow
9 ESP control module 10
1 0
E S P cont ro l modu le 2 5
11
Right rear power window 30
12
Fron t passe nger seat 15

292 Index
Glossary of tire and loading termino logy 239
Glove compartment (cooled) . . . . . . . . . . . 70
G ross Vehicle Weight Rating (GVWR) ... 279
H
Headlig hts
C leaning system .............. .... .. 48
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Headlight range control . . . . . . . . . 21, 43
Washer reservoir .......... ... .. .. . 236
Head restraints . . . . . . . . . . . . . . . . . 61, 131
Adjusting . ............... ... .... . 131
H eated
exterior mirrors .......... .. .. .. .. .. 51
rear window . . . . . . . . . . . . . . . . . . . . . . . 76
seats . ..... ................ ..... .. 76
windshield washer spray no zzles . ..... 48
H eating ... .. .... ......... .. .. .. .. .. 74
Heavy clothing and safety belts . . . . . . . . 140
High beam ... ................ ..... .. 45
H igh voltage warn ing label ...... .. .. . 279
Homelink ® universal remote control . . . 124
H ood (release lever) . ..... .. .. .. .. .. . 222
Horn ..... .. ................ ... .. ... 8
How are child restraint system anchors re-
lated to child safety ........ .. .. .... . 181
Ho w many airbags does my vehicle have? 152 Instruments
and controls
General illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster ................ .. 10
Interior lighting Amb ience lighting ............. .... . 46
Front and rear ... ................ .. 46
Intermittent (windshield w ipers) ..... .. 48
J
Jack 260
Jump-starting ..... ................ . 273
Jumper cables ... .. .. .. ...... ... .. .. 274
K
Key ........... ... .. ................ 29
Battery replacement master key . . . . . . . 30
Emergency key ... ............. .. .. . 29
Key replacement . . . . . . . . . . . . . . . . . . . 29
Master key . . . . . . . . . . . . . . . . . . . . . . . . 29
Mechanical key ... ............. ..... 30
Valet key . ..... .. .. .............. .. 29
Kick-down (automatic transmission) .... 115
Knee airbags .. .. .. .. ....... .... .... 161
Descrip tion .... ............. ...... 161
How they work . .. .......... ...... . 162
Important safety instructions .. .. .. .. 162
How often should I check my t ire pres-
L
sures? .. .. .. ................ ... ... 245
How safety belt pretensioners work ... . 143
H ydroplaning 249
I
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 26
Important things to do before driving .. 127
Im properly worn safety belts . .. .. .. .. . 143
Indicator lights
refer to Warning/ind icator lights .. .... 11
Infant seats . . . . . . . . . . . . . . . . . . . . . . . 17 4
Installing child safety seats
Safety belts ............. .. .. .... . 178
Installing the upper tether strap on the
anchorage . .. .......... ...... ... .. . 186
Instruments Adjusting the lighting ..... .... .... .. 47 Lane assist
Activating and deactivating ......... .. 95
Cleaning camera area .... ...... .. .. 208
Description .. .. .. ............. .. .. . 95
Instrument cluster indicator light .... . 95
Messages . .... .. ............. .... . 96
Notes on instrument cluster display ... . 95
Setting the steering wheel vibration ... . 97
Setting the warning point ........... . 97
LATCH ....... .. .. .. ........... .... 181
Description .. .. .. ............. .. .. 182
Guidance fixtures for lower anchorages 183
Installing a child restraint .......... . 184
Location . ..... .. .. .............. . 182
Mounting and releasing the anchorage
hook ..... .. .. .. .. ........... .... 184
Leather ........ .. ............. .... 213
Leather (cleaning) .. ................ . 214

294 Index
Panoramic sunroof ........... .. .... .. 41
Sun shade . . . . . . . . . . . . . . . . . . . . . . . . . 42
Parking . .. .... ........... ........ .. 82
Valet park ing ............ .. .. .. .. .. 40
Park ing brake ... . ...... ... .. .. .. .. .. 81
also refer to Electromechanical park ing
brake .. .. .. ................ ... ... . 81
Parking lights ............. .... .... .. 43
Parking system
C leaning camera lens ............... 208
Parking system advanced
Adjust ing the display .......... .. .. . 122
Adjust ing the warning tones .. .. .. ... 122
Rear view camera -parking mode 1 .. . 121
Rear view camera -parking mode 2 . .. 121
Safety precautions ................ . 118
Switching on and off ....... .... ... . 120
Parts replacement ......... .... .... . 285
Pass-through with ski sack . . . . . . . . . . . . . 66
PASSENGER AIR BAG OFF light .... ... . 1S6
Passenger protection ........ ..... .. . 188
Passive safety system ......... .. .... . 127
Pedals .. .. .. ............. .. .. .. .. . 132
Physical principles of a frontal collision . 138
Polishing .... ................ ..... . 209
Pollutant filter (automatic A/C system) . . 7 4
Power locking system . . . . . . . . . . . . . . . . . 31
Locking/unlocking the vehicle from in-
side . .. .. .. ................ ... ... . 34
Rear lid .. .. ... .... ...... .. .. .. .. .. 35
Selective unlock feature . .. .. .. .. .. . . 32
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Unlock ing and locking vehicle ... .. .. . . 32
Power seat adjustment Front seats . . . . . . . . . . . . . . . . . . . . . . . . S5
Rear seats .. ................ ... ... . S7
Power steering (servotronic) . .. .. .. .. . 194
Power windows . . . . . . . . . . . . . . . . . . . . . . 39
malfunction . . . . . . . . . . . . . . . . . . . . . . . 39
Pregnant women
Special considerations when wearing a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 142
pre sense .. .. ... .. ..... ... .... .. .. . 188
Preventative passenger protection . . . . . 188
Programming the Homelink ® universal re-
mote control .............. .. .. .. .. . 124 Proper
occupant seating positions ... .. 128
Proper safety belt position ............ 141
Proper seating position Front passenger .. ............. .... 129
Occupants . .. .. .. .. .. ... ..... ... .. 128
Rear passengers .. ..... ........... . 130
Q
quattro ®
refer to All Wheel Drive . . . . . . . . . . . . . 194
Question What happens to unbelted occupants? 138
Why safety belts? ............. .... 137
R
Radiator fan ...... ................ . 231
Radio clock ... .. .. ............. .. .. . 26
Rain/light senso r
Headlights .. ...... ... ..... ... .. .. . 43
Intermittent (w indshield wipers) ...... 48
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Range (fuel level) . . . . . . . . . . . . . . . . . . . . 24
Reading lights ... .. ............. .. .. . 46
Rear fog lights .. .. ....... ...... .. .. . 43
Rear lid Automatic operation .............. .. 36
Emergency release ............... .. . 37
Escape handle . .. ............. .... 259
Opening and closing ..... ...... .. .. . 35
Rear light Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear seats Adjusting individual seats ....... .... . 57
Entry assistance . . . . . . . . . . . . . . . . . . . . 60
Front passenger seat adjustment . . . . . . 60
Reclining rear seat ................ .. 59
Rear view camera
Reverse Parking .. ............. .. .. 121
Rear view mirror ... ....... ...... .. .. . 51
Rear window heating ................. 76
Recirculation mode (automat ic climate
control) .... .... ................... . 7S
Reclining rear seat . ... .. ....... ... .. . 59
Refrigerator
refer to Cooler . . . . . . . . . . . . . . . . . . . . 216
Refuelling .... .. .. .. ... ............ 220