2009 AUDI S8 brakes

If the ABS, ESP and brake force distribution fail, the ABS indicator
l ig ht (USA models)/ ~ (Canada models) and the ESP ind ica tor
light
~ come on along with the brake system ma lfunction light
BRAKE (USA mode ls)/ (@ (Canada models). The message Brake fault !
Drive carefully to nearest workshop appears in the instrument
cluster disp lay and three consecutive wa rning tones so und =>& .
(USA models) : If th e warning light
BRAKE and t he wa rn ing lig ht ......
illuminate together, immediately contact your authorized Audi
dea ler o r qua lified works hop to have a ll brake pads inspec ted
=> page
34.
When the lig ht co mes on , an audible wa rning signal is also given.
& WARNING
• USA models: If the BRAKE warning light , the ~ warning light and
the , warning light come on together , the rear wheels could
lock up first under hard braking . Rear wheel lock-up can cause loss
of vehicle control and an accident . Have your vehicle repaired
immediately by your authorized Audi dealer or a qualified work­
shop. Drive slowly and avoid sudden , hard brake application s.
• Canada models:
If the brake warning light CCD>, the ., warning
light and the ABS warning light come on together , the rear
wheels could lock up fir st under hard braking . Rear wheel lock-up
can cau se loss of vehicle control and an accident. Have your
vehicle repaired immediately by your authorized Audi dealer or a
qualified workshop. Drive slowly and avoid sudden, hard brake
appli cations.
• If the brake warning /indicator light does not go out after a few
seconds and the parking brake released , or lights up while you are
driving , the fluid level in the brake fluid reservoir i s too low. If you
believe that it is safe to do so , proceed immediately at low speed
to the nearest authorized Audi dealer or qualified repair facility and have the brake system inspected .
• Always keep in mind that after several brake applications, you
will need greater pressure on the brake pedal to stop your vehi cle.
Do not rely on strained brakes to respond with maximum stopping
Controls and equip ­
ment
Instruments and warning /indi cator lights
& W ARNING (continued )
power in critical situations . You must allow for in creased brak ing
distances. The extra di stance used up by fading brakes could lead
to an accident . •
I • •

If the warning light illuminates, immediate ly contact your autho ­
ri zed Aud i dealer or qualified workshop to have a ll brake pads
inspected . On USA models the warning light
.1 comes on together
with the warni ng light
BRA KE. Both set s of brake pads on an axle must
a lways be replaced at the same time .
& WARNING
Driving with bad brakes can cau se a colli sion and serious personal
injury.
• If the warning light and the warning light
BRAKE11 with the
mes sage Brake pads ! come s on in the in strument clu ster display ,
immediately conta ct your authorized Audi dealer or qualified
workshop to have all brake pads checked or replaced if nece ssary .•
Checking the engine oil level ~
.... ,. Plea se check oil le vel
When the symbo l illuminates, chec k the eng ine oi l leve l as so on as
possible=>
page 313 . Add oil if necessary=> page 374 . •
Engine oil sensor defective
~ Oil level ! sen sor defective
If the symbo l il luminates, contact your authorized Audi dea ler and
have the oi l sensor inspecte d. Until you have this done, check the o il
level each time you refuel just to be on the safe side=>
page 373. •
11 BRAK E: USA mode ls on ly
Controls and equip ­
ment
Driv er information display
Ap plies to vehic les: wit h eng ine s peed limita tio n
Engine speed limitation
!-1 Engine speed maximum XXXX RPM
The _-symbo l illuminates when there is an engine control malfunc ­
t io n. The indica to r light "in the instrument clus te r also illumi ­
nates . The engine speed is limited to the speed displayed in the
driver info rmation system . Keep in mind that the engine speed wil l
not e xceed the va lue d isplayed in the dr ive r info rm ation system, fo r
examp le when downshifting.
Please go to an au thorized Audi deale r or other qua lif ied workshop
to have the ma lfunction repaired .•
Fuel supply too low l
A Please refuel
When the symb ol i llu minates, this means there are abo ut 2.4
gallons
(9 l itres) of fuel left in the fuel tank . Time to refuel.
=>
page 304 .
If the symbo l lig hts up, eve n w hen there is ample fuel in th e tank,
and the text
Tank system malfunction ! Conta ct workshop appears
i n the d isp lay, t here is a fault in th e sys tem. C ontac t a q ua lified work ­
shop to have the fault rectified .•
' Windshield washer fluid level too low ~
Plea se top up washe r fluid
If t he symbo l illum inates, add windshie ld washe r fluid to the washe r
system and a lso to the headlight washer system=>
page 325. •
I • •

________________________________________________ S_ e_ a _ t_ s _a_ n_d _ s_t _o _ r_ a...: g==-- e __ llffllJI
0 Note
To avoid damaging the socket, only use plugs that fit properly.
[ i] Tips
When the engine is off and accessories are still plugged in and are
on, the vehicle battery can still be drained. •
Storage
General overview
There are numerous places to store items in your vehicle.
Glove compartment
Storage compartment
Pockets in the front seats*
Compartments in the door trim panels
Compartments in the rear doors* :::::,
page 109
=:> page 11 O
=:> page 110
=:> page 111
Left side storage compartment in the :::::, page 112
trunk
- -Right side storage compartment in the :::::, page 113
trunk
Emergency warning triangle
Umbrella holder
& WARNING
=:> page 350
• Always remove objects from the instrument panel. Any items
not stored could slide around inside the vehicle while driving or
Controls and equip ­
ment
& WARNING (continued)
when accelerating or when applying the brakes or when driving
around a corner.
• When you are driving make sure that anything you may have
placed in the center console or other storage locations cannot fall
out into the footwells. In case of sudden braking you would not be
able to brake or accelerate.
• Any articles of clothing that you have hung up must not inter­
fere with the driver's view. The coat hooks are designed only for lightweight clothing . Never hang any clothing with hard, pointed
or heavy objects in the pockets on the coat hooks. During sudden
braking or in an accident -especially if the airbag is deployed -
these objects could injure any passengers inside the vehicle. •
Glove compartment
Your Owner's Literature and the media player are stored
in the lockable glove compartment.
t--------------. l
i
I • •
Fig. 117 Glove
compartment

• ..__O_ n_ t_ h _e _ ro_ a_d __________________________________________________ _
Electromechanical parking brake
Operation
The electromechanical parking brake replaces the hand
brake.
F ig. 148 Cen ter
co nso le: P arki ng br ake
Pu ll the switch to app ly the parking brake==> fig. 148 . The
indicator light in the sw itch will com e on.
Step on t he brake ped al o r th e accelerat or pedal and
press the switch at the s am e time to rel eas e the parking
brake . The indicator light in t he switch w ill go out .
Your vehicle is equipped w ith an electromechanical parking brake
which replaces the handbrake . The parking brake is designed to
prevent the vehicle from rolling unintentionally .
In addition to the norma l functions of a trad itiona l hand brake, the
e lectromechanical parking brake provides various convenience and
safety functions.
Em erg en cy brake
An emergency brake ensures that the vehicle can be slowed even if
the
normal brakes fa il=> page 136, "Emergency braking".
Indi ca to r light s
• If the pa rking brake is app lied with the ignition turned on, the
indicator light in the instrument cluster (U.S. models:~-Canadian
models: ©) and in the switch © will come on .
• If the parking brake is applied with the ignition
turned off , the
indicator light in the instrument cluster (U .S . models :~~ , Canadian
models :(®) ) and in the switch(®) will come on for about 30 seconds
and then go out.
& WARNING
If the vehicle i s stationary and the transmis sio n i s e ngag ed with
the eng ine running , th e engine should n ot b e speeded up (e .g .
manu ally from under the ho od). Oth erw ise th e vehi cle will start t o
mo ve • you r un the ris k of an acc ident .
0 Note
If the warning/indicator light (U .S . models: BRAKE , Canadian models:
{(j))) flashes in the instrument cluster, there is a brake system
malfunction . By pressing the
I C HE CK] button , you can bring up a
driver message which explains the malfunction in more detail. If the
message
Parking brake ! Plea se conta ct w ork shop appears, there is
a parking brake malfunction which you should have repaired imme ­
diate ly by an authorized dealership=:>
page 30.
[ i ] Tips
• You can app ly the parking brake at any time -even with the igni ­
tion turned off . T he ignition mus t be turned on in order to release
the parking brake.
• Occasional noises when the parking brake is applied and
released are norma l and are not a cause for concern .
• The parking brake goes through a se lf -test cycle at regular inter ­
va ls - when the vehicle is parked. Any associated no ises are
normal. •

• .___O_ n_ t_h _e _ r_o _a_ d __________________________________________________ _
& WARNING (continued)
• Please note that inadvertently "resting" your foot on the accel­
erator pedal causes the cruise control not to brake . This is because
the cruise control is overridden by the driver's acceleration.
[ i J Tips
The brake lights illuminate as soon as the brakes decelerate
automatically. •
Changing speed
-Press lever in the 0 or O direction => page 137, fig. 149
to increase or decrease your speed.
- Release the lever to save that speed.
Change speed in increments of 1 mph (1 km/h) by lightly pressing
the lever . If you keep the lever pressed down, you will alter your
speed in 5 mph (10 km/h) increments.
You can also press the accelerator pedal down to increase your
speed, e.g . if you want to pass someone. The speed you saved
earlier will resume as soon as you release the accelerator pedal.
If, however, you exceed your saved speed by 5 mph (10 km/h) for
longer than 5 minutes, the cruise control will turn off temporarily.
The green symbol in the display=>
page 137, fig. 150 is rep laced
with a white symbol. The saved speed remains the same. •
Presetting your speed
You can preset your desired speed while the vehicle is not
moving.
- Turn on the ignition. -
Pull lever into position
G) => page 137, fig. 149.
- Press the lever in the
0 or O direction to increase or
decrease your speed.
- Release the lever to save that speed.
This function makes it possible, for example, to save the speed you
want before driving on the highway. Once on the highway, activate
the cruise control by pulling the lever toward
(D. •
Switching the system off
Temporary deactivation
- Press the brake pedal, or
- Press the lever into position
0 (not clicked into place)
=> page 137 , fig. 149, or
- Drive for longer than 5 minutes at more than 5 mph
(10 km/h) above the stored speed.
Switching off completely
-Press lever into position 0 (clicked into place), or
- Switch the ignition off.
The system retains the saved speed if you deactivate the cruise
control temporarily . To resume the saved speed, release the brake
pedal and pull the lever to position
(D .
Switching the ignition off erases the saved speed.
& WARNING
You should only return to the saved speed if it is not too fast for
the current traffic conditions -risk of an accident! •

• .___A_ d_a_ p:- t_iv _ e_ C_ r_u _is _ e_C_ o_ n_ t_ r_ o_ l --------------------------------------------
& W ARN ING (continued )
slow your veh icle safel y. If closing speed is too h igh , you must
apply the brake s your self to reduce the risk of a rear -end cra sh.
• Never rest your foot on the accelerator pedal , especi ally when
the Adapt ive Crui se Control is being u sed . Pressure on the acceler ­
ator will override the ACC brak ing function and prevent the brakes
from being applied when ACC detect s a situation when the brake s
must be applied .
• Never use Ad aptive Cruise Control when you cannot drive
safely at a steady speed , including on city streets , on winding
roads or when road condition s are poor (for example, on i ce ,
gravel , in fog , heavy rain or on wet roads that in crease the risk of
hydroplaning).
• The radar sensor's
vision can be redu ced by rain , snow and
heavy road spray . These and similar conditions can prevent vehi ­
cles up ahe ad from being a ccurately detected and in some cases
they may not be detected at all . Do not use ACC when the radar
sensors cannot ac curately detect vehi cles moving ahead of you in
traffic.
• Always turn off Adaptive Cruise Control when entering turn
lanes, exit lanes and construction zones or in similar situations
be cause the vehicle will automati cally ac celerate to the stored
speed when the road ahead is clear.
• To p revent unintended operation , always switch ACC off when
it is not being used.
[ i ] Tips
• For safety r eas ons, the store d spe ed is d elet ed whe n th e ig nition
is turned off .
• When Ada ptive Cru ise Contr ol is swi tch ed o n, the Electr onic
Stabilization Program (ES P) is also automatically activated .
• Damage caused by accidents an d so me min or collis ions ca n
affect the radar sensor settings and cause the system to malfunc ­
t ion o r sw itch o ff co mplet ely . • I
n winter conditions, you should check the radar sensor cover
b ef or e driving to make s ure it is free of ice and snow . If n ecessary,
clean the area near the radar sensor carefully=:>
page 139, fig. 151 .
• To ensu re tha t the rada r se nsor is not bl ocked, fo reign objec ts
(e .g. stickers, larger license p late mounts, add -on parts) must not
cover the area near the rada r sens or=:>
pag e 139, fig. 151. The area
near the radar sensor must not be painted, either.
• For Dec laration of C ompliance to U nited S ta te s FCC an d Ind ustry
Canada regulations=>
page 385. •
Appl ies to vehic les: w ith Ada ptive Cru ise Contro l
How does Adaptive Cruise Control work?
Vehicles tr aveling ahead are detected with t he aid of the
ra da r se nsor.
Fig . 152 R adar sen sor
mea suremen t range
Adaptive Cr uise C ontr ol us es a radar senso r in the fron t of th e
vehic le=:> fig. 152 . The system has limitations=:>
page 150. Things
th at are n ot moving in yo ur l ane and i n you r direc tio n of travel wi ll
n ot be detected. The sensor measures the distance to reflective
surfaces that must have a certain size. The system responds only
after t he distance measurement has been made. If a measurement
is not possible, the system cannot respond and wi ll not react to a
v e hic le or so met hing else up ahe ad .
~

_____________________________________________ A_ d_a ...: p_ t_ i_ v _e_ C_ ru_ is_ e_ C_ o_n _ t_ r_o _ l _ __._
Vehicles moving in you r direction can be detected up to a dis tance
of about 140 yards (130 meters) bu t the Adaptive Cruise Control
cannot detect vehicles that are stopped or sta lled, obs tacles that do
not move or narrow vehic les like motorcyc les and bicycles .
Open road
When the road is c lear, Adap tive Cruise Con trol works like cruise
control. It maintains a constant target speed specified by the driver .
Driving in traffic
If a slow er vehicle driving ahead is detected, the Adaptive Cruis e
Contr ol dece lerates (within the limits of the system) ::::,
page 150 to
its spe ed and after adjusting, tries to maintain the set distance from
t he veh ic le ahead. The vehicle may temporar ily d rive slower tha n
the set speed while adjusting ::::,
& in "Description" on page 139.
If the vehicle in front accele rates, Adaptive Cruise Control also accel ­
erates up to the speed that you have set.
Situations requiring driver intervention
I n some situations you w ill have to use the foot brake and slow the
veh icle down in order to keep a sa fe distance from vehicle in front
of you or to avoid a rear -end collision. In this situation, a symbol
appears and a warning tone sounds::::,
page 146.
Passing another vehicle
If you move int o the pa ssing lane and no vehicle is detecte d ahead,
Adaptive Cruise Contro l accelerates to the speed you have set and
maintains it .
Overriding ACC
You can increase your speed a t any time by stepping on the acceler ­
ator pedal. After you re lease the accelerator pedal, the system
adjusts back down to the speed you previously set .
Contro ls and eq uip­
ment
& WARNING
• Never rely on the distan ce control feature of ACC alone to
prevent rear -end collisions. Always be prepared to brake and take
evasive action to avoid colli sio ns and other accident situation s.
• Never allow the closing speed between you and other vehicle s
to be so high that the Adaptive Cruise Control may not be able to
slow your vehicle safely . If clo sing speed i s too high , you must
apply the brakes yourself to reduce the risk of a rear -end cra sh .
[ i ] Tips
Please note that the amount of acceleration the Adaptive Cruise
C o ntro l use s depends on the Distance setting selected . DISTA NCE 1
gives you acceleratio n that is dynamic a nd sporty. D IS TA NCE 4, on
the other hand, gives more moderate acceleration . For more infor ­
mation about the ti me inte rvals ::::,
page 144, "How is the distance
set?". •
Applies to veh ic les : wi th Ad aptive Cr uise Co ntro l
Switching the system on and off
Switching the system on
- Pull the le ver t o positi on G) .
Vehicle care I I
Fig . 15 3 Contr ol le ver:
Sw itch ing on an d off
irechnical data

_____________________________________________ A_ d_a ...: pc.. t _i_ v _e_ C_ ru_ is_ e_ C_ o_n_ t_ r_ o _ l __ llll
DISTANCE 1
Symbol c:::, _ c:::,_ --
Time interval 1 second
Dynamics Sporting
Distance at 25 mph (40 km/h) 36 Feet (11 Meters)
Distance at
50 mph (80 km/h) 72 Feet (22 Meters)
Distance at 75 mph (120 km/h) 108 Feet (33 Meters)
& WARNING
Following other vehicles too closely increases the risk of a crash
and serious personal injury .
• Following other vehicles too closely, particularly at higher
speeds increases the risk of collisions and serious personal injury .
• Setting short distances to the traffic ahead reduces the time
and distance available to bring your vehicle to a safe stop and
makes it even more necessary to pay close attention to traffic.
• Always select a speed and distance to traffic ahead that is safe
and appropriate under the prevailing traffic, road, weather and
lighting conditions.
• Never rely on the distance control feature of ACC alone to
prevent rear-end collisions. Always be prepared to brake and take
evasive action to avoid collisions and other accident situations.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Control may not be able to slow your vehicle safely .
If closing speed is too high, you must
apply the brakes yourself to reduce the risk of a rear-end crash.
• Always select a greater following distance to the vehicle ahead
on wet roads than on dry roads.
• Always read and heed the information and
WARNINGS ~ & in
"Description" on page 139.
Controls and equip ­
ment
DISTANCE 2 DISTANCE 3 DISTANCE 4
~ __ c:::, __ c:::,
___ c:::,_
c:::, ____ c:::,
1.3 seconds 1.8 seconds 2.3 seconds
Standard Standard Comfortable
46 Feet ( 14 Meters)
66 Feet (20 Meters) 82 Feet (25
Meters)
95 Feet (29 Meters) 131 Feet (40 Meters) 167 Feet (51 Meters)
197 Feet (60 Meters) 249 Feet (76 Meters)
[ i] Tips
• Distance can be adjusted using the slider switch on the lever and
through Adaptive Cruise Control in the MMI menu~ page
150. The
settings in the MMI menu are stored automatically and allocated to
the remote control key.
• If the distance was not set in the MMI menu Adaptive Cruise
Control , it is reset to the factory setting DISTANCE 3 when the igni­
tion is turned on. •
I • •