brake AUDI S8 2010 Owner's Manual

1111....__0_ n_ t_h_ e_ r_ o_ a _ d _________________________________________________ _
Parking
To p revent a parked vehicle from rolling away, there are
a fe w things you should do.
When you park your vehicle , do the following
- Stop t he veh icle us ing the bra ke pedal.
- Pull the switch to apply t he electromechanica l parking
brake .
- Move th e se lector lev er in to the
P position ~& .
- Switch off the e ngine and remove the ignition key from
the ignition lock.
When you park your vehicle on hills, do the
following
- Stop the veh icle us ing the bra ke pedal.
- Pull the switch to apply t he e lectromechanica l parking
brake .
- I f you a re parkin g h eaded
downhill , turn the front w heels
toward th e curb .
- I f you are parking headed
uphill , turn t he fro nt wh eels
away from t he curb.
- M ove the selector lever into the
P position.
- Switch off the e ngine and remove the ign it ion key from
the ignition lock.
& WARNING
Thi s is how you can reduce the risk of injury when lea ving your
vehicle.
& W ARNING (continued )
• Never park the vehicle where it can come in contact with dry
grass , spilled fuel or any other flammable material s.
• When parking on hills, always turn the wheel s so that the front
wheel s will fir st roll into the curb, if the vehicle should start to
roll.
• Never allow anyone · especially small children· to remain in
the vehicle when it i s locked. Locked door s make it more difficult
fo r rescu ers to acce ss the passenger compartment in the event of
an emergency. Danger to life!
• Never leave children unsuperv ised in the vehicle. Ch ildren
could relea se the parking brake or move the gear shift lever out of
gear. The vehicle could start to roll away and cau se an accident .
• No matter what the season i s, the temperature
in a parked
v ehicle can reach dangero us le vels .
0 Note
• Please exercise care when you pa rk your veh icle in parking areas
w ith park ing barriers o r cur bs. Parking barriers and curbs vary in
he ight and could damage your bumpe r and related components as
the front of your vehicle moves over a ba rrier or curb that is too high,
as you park or as you back out of a pa rking spot. In order to be sure
that no such damage can occur, yo u may wish to stop short of having
t he fro nt t ires of you r car touch t he p arking bar rie r or curb.
• Please a lso exerc ise except iona l care when you drive up or down
steep ramps or drive over curbs or o ther obstacles, for which the
vehicle is not des igned, because components of the vehicle close to
t he ground, s uch as bumpe r covers, spoilers and suspension and
exhaust system components, may become damaged. •

On the road ---------------~:..:.....__
Starting off with a trailer
To prevent rolling back unintentionally on an incline, do
the following:
- Keep the switch pulled and depress the accelerator. The
parking brake stays applied and p reve nts the vehicle from
rolling backward .
- You can release t he switch once you are sure t hat you are
deve loping enough forward momentum at the whee ls as
you depress the acce lerator .
Depending on the we ight of the rig (vehicle and trailer) and the
severity of the incline, yo u may roll backwards as you start. You can
prevent rol ling backwards by holding the park ing bra ke sw itch pulled
out and accelerating -just as you wou ld when starting on a hill with a
conventional hand brake .•
Emergency braking
In the event that the conventional brake system fails or
locks.
- P ull the swi tch and cont inue to pull it to s low your veh icle
with the parking brake in an emergency .
- As soon as you re lease the sw itc h or accelerate, the
braking process stops .
If you pull the switch and hold it above a speed of abou t 5 mp h (8
km/h), the emergency braking function is init iated. The vehicle is
bra ked at all fou r wheels by activat ing the hydraulic b rake system.
Brake performance is s imilar to making an emergency stop~,&.
So that emergency braking is not activated by mistake, an audible
warning tone (buzzer) sounds when the switch is pulled . As soon as
Controls and equip ­
ment Safety first
the switch is released, or the accelerator pedal is depressed, emer­
gency braking s tops.
& WARNING
Em erg ency braking should only be u sed in an emergen cy, wh en
the no rmal foot brake ha s failed o r the brake pedal i s obstructed.
U sing the park ing b rake to perform emerg ency braking will slow
your vehicl e as if you had made a full brake application . The laws
of phy sic s c annot be su spen ded even wi th ESP and it s ass ociated
c omponents (ABS, ASR , ED S). In corn ers and when r oad or
weather condit ion s are bad , a full brake application can cause the
ve hicl e to sk id or the rear end to br eak away- r isking an accid ent .•
Driver messages in the instrument cluster
C aution : Vehicle park ed too steep
Th is message appears when the pa rking brake is applied on an incline
that exceeds abo ut 30%.
In this case the braking power of the parking brake may
not be
adequate
t o p revent the vehicle from rolling un intentionally.
Plea se release parking b rake
Thi s message appears, when a gear is se lected and the accelerato r
pedal is depressed -release the parking brake.
Pre ss brake p edal to relea se park ing brake
T his driver message appea rs when the switch to release the parking
bra ke was pressed. The par king brake can only be released if you press
the brake or accelerator pedal and press the switch at the same time.
.1 Par king bra ke mal funct ion !
T his driver message appears together w ith the yellow symbol
when there is a parking brake malfunct ion.
Vehicle care Technical data

1111..__0_ n_ t_h _e_ r_o _ a_ d _________________________________________________ _
0 Note
If the warn in g/i nd icator lig ht ( U.S . models: BRAKE , Canadia n mode ls:
«D> ) flashes in the instrument cluster, t here is a b rake system
ma lf u nct ion. By p ress ing t he [
C H E CK i button, yo u can br ing up a
dr iver message which explains the ma lfunction in more detail. If the
mes sage
Parking brake ! Please conta ct work shop appe ars, there is
a park ing brake ma lfunction which you s hou ld have repaired immedi­
a tely by an au thor ized deale rship =>
page 28. •
Cruise control
Switching the system on
The cruise contr ol syst em makes it possib le to drive at a
constant speed starting at 2 0 m ph ( 30 km/h).
Fig. 136 Co ntrol lever
w ith set button Fig. 137 D
ispl ay:
Se lec ted speed
- Pull the lev er to positio n (D ~ fig. 136 to switc h th e
syst em on.
- Drive at th e speed you wis h to s et.
- Press button
© to set t hat speed .
The display => fig. 137 will show the set speed. The d isp lay may vary
depe nding on the ty p e of displa y in yo ur vehicle. The indica to r li gh t
CRUISE (US mode l)/ 0 (Canadian mode l) wi ll also light up in the
in st rumen t clu ste r.
T he speed is kept constant via an eng ine output adjustment or act ive
brake intervention.
& WARNING
• Alway s pay attention to traffic even when the cruise control i s
switched on. You are always responsible for your speed and the
di stan ce between your vehicle and other vehicles.
• For safety r easons , the cruise control should not be used in the
city, in stop-and-go traffic , on twisting roads and when road
conditions are poor ( such as ice , fog, gravel, heavy rain and hydro­
planing ) -risk of accident .
• Turn off the cruise control temporarily when enter ing turn
lanes , highway exit lane s or in construction zone s.

_________________________________________________ O_ n_t_ h _ e_ ro_ a_d __ ffllll
& 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] Tips
The brake lights illuminate as soon as the brakes decelerate automatically. •
Changing speed
-Press lever in the
0 or O direction=> page 126, fig. 136
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
S 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 S mph (10 km/h) for
longer than S minutes, the cruise control will turn off temporarily .
The green symbol in the display~
page 126, fig. 13 7 is replaced 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.
Controls and equip ­
ment Safety first
- Pull lever
into position ©=> page 126, fig. 136.
- 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@ (not clicked into place)
=> page 126, fig. 136, 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 @ (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! •
Vehicle care Technical data

"" Adaptive Cruise Control .._ _ ____:.. ___ __::_....::...:;..:...:....:.:-=...:.. ____________________________ _
Adaptive Cruise Control
Speed and distance control system
Applies to veh icles : w it h Adap tive Cru ise Cont ro l
Description
Th e Adaptiv e Cruis e Control driver a ssistanc e program is
a co mbine d speed and d istan ce contr ol s ys tem.
Fig . 138 Front
bumper: Po sition of
rada r sensor
Adaptive Cru ise Cont rol can h elp ma ke driving mo re relaxed and less
t iri ng , par ticularly d uring lon g trips on i nte rs t a tes o r oth er hig hways
that a re generally st raig ht.
Set ACC to maintain a constan t, lega l travel spee d between 20 and 95
m ph (3 0 · 150 k m/h) t hat is approp riat e f or preva iling traf fic co ndi­
tions. Select a following distance to t he ve hicle ahead and ACC w ill
adjus t your speed to maintai n that d istance.
Adaptive Cruise Control has technica l limitations that you must k now,
so p le a se read this sectio n carefully, understa nd how the sy stem
works and use it p ro p erly at all ti mes.
How does it work?
You ca n op erate the Adaptive Cruise Control usi ng the lever on the
s teer ing wheel column ~
page 13 1, " H ow is the speed sto red?" and
~ page 133, " H ow is the distance set?" .
Driver information
Important information is bro ught up in the s peedometer and in the
i nst rumen t clust er displa y as the ve hicl e is be ing drive n~
pa ge 135,
"Driver informat io n".
What is important for you to know
T here are limits to what Adaptive Cr uise Contro l can do as the vehicle
is being drive n~
page 139 , "Sys tem lim itations".
& WARNING
Improper use of the Adaptive Cruise Control can cause collisions,
other accidents and serious personal injury.
• Always remember that the Adaptive Cruise Control has limits -
it will not slow the vehicle down or maintain the set distance when
you drive towards an obstacle or something on or near the road
that is not moving, such as vehicles stopped in a traffic jam , a
stalled or disabled vehicle.
• Always remember that the Adaptive Cruise Control cannot
detect a vehicle that is driving towards you in your traffic lane and
that it cannot detect nar row vehicles such as motorcycles and bicy­
cles.
• Never drive at speeds that are too fast for traffic, road and
weather conditions.
• The Adaptive Cruise Control cannot slow
or brake the vehicle
safely when you follow another vehicle too closely. Always
remember that the Adaptive Cruise Control has a braking power
that is only about 30% of the vehicle 's maximum braking ability .
Always be prepared to brake and take ev asive action to avoid colli·
sions and other accident situations.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Crui se Control may not be able to .,

__________________________________________ A_ d_ a_,_ p_t _iv _ e_C_ r_u _i _ s _e _C_ o_n_ t_ r_ o_ l __ _
& WARNING (continued)
slow your veh icle safely. If clos ing speed is too high , you must
apply the brake s your self to reduc e the ri sk of a rear-end cra sh .
• Never re st you r foot on the accelerator pedal , especially when
the Adaptive Cruise Control is being used. Pressure on the acceler­
ato r will override the ACC braking function and prevent the brakes
from being applied when ACC detects a situation when the brakes
must be applied.
• Never use Adaptive Cruise Control when you cannot drive safely
at a steady speed, including on city st reets , on winding roads or
when road conditions are poor (for example , on ice, gravel , in fog,
heavy rain or on wet roads that increase the ris k of hydroplaning ).
• The radar sensor's
vision can be reduc ed by rain, snow and
heavy road spray . These and similar conditions can prevent vehi ­
cle s up ahead from being accurately detected and in some cases
they may not be detected at all . Do not use ACC when the radar
sen sors cannot ac curately detect vehicles moving ahead of you in
traffic .
• Alway s turn off Adaptive Crui se Control when entering turn
lanes , exit lanes and construction zones o r in similar situat ions
because the vehicle will automatically ac celerate to the stored
speed when the road ahead is clear .
• To prevent unintended operation , always switch ACC off when
it is not being used .
[ i] Tips
• For safety reasons, the stored speed is deleted when the ignition
i s turned o ff.
• When Adapt ive Cruise Control is switched on, the Electronic Stabi­
li zation Program ( ESP) is also automa tica lly activ ated.
• Damage caused by accidents and some minor collisions can affect
th e rad ar senso r se ttings and ca use the syste m to m alfunction o r
switch off completely.
Controls and equip ­
ment Safety first
•
In winter conditions, you should check the radar sensor cover
be fore drivi ng to m ake su re it is free of i ce and s now. If ne cessa ry,
clean the area near the radar sensor carefully=>
page 128, fig. 138 .
• T o ensure th at the radar sensor is not blo cked, fore ign objects
(e .g . stickers, larger license plate mo unts, add-on parts) mus t not
c ove r th e ar ea ne ar the ra dar sensor =>
page 12 8, fi g. 13 8. T he area
near the radar sensor must not be painted, e ither.
• F or Declar ation o f Compliance to United Sta tes FCC and I ndus try
Canada regulations=>
page 364 . •
App lies to vehicles: with Adapt ive Cru is e Co ntr ol
How does Adaptive Cruise Control work?
Vehicl es traveling ahead are d etected with th e aid of the
radar sensor.
Fig. 139 Radar sen sor
m easur em ent range
Adaptive C ruise Con trol uses a radar se nsor in t he front o f the vehi cle
=> fig . 139 . The system has limitations=>
page 139. Things that are
not moving in your lane and in yo ur direction o f travel will no t be
detected . The sensor measures the distance to reflective su rfaces
that m ust have a certain s ize. The system responds only after the
distance measu remen t has been made . If a measurement is not
poss ible, the system cannot res pond and w ill not react to a vehicle or
s o me thing el se up ah ead. .,_
Vehicle care Technical data

1111....__A_ d_ a_,_ p_t _i_ v _e _ C_r_ u_ i_ s_ e_ C_ o_ n_ t_ r_ o_ l __________________________________________ _
Vehicles moving in your direction can be detected up to a distance of
about 140 yards (130 meters) but the Adaptive Cruise Control cannot
detect vehicles that are stopped or stalled, obstacles that do not
move or narrow vehicles like motorcycles and bicycles .
Open road
When the road is clear, Adaptive Cruise Contro l works like cruise
control. It maintains a constant target speed specified by the driver.
Driving in traffic
If a slower vehicle driving ahead is detected, the Adaptive Cruise
Control decelerates (within the limits of the system) =>
page 139 to
its speed and after adjusting, tries to maintain the set distance from
the vehicle ahead. The vehicle may temporarily drive slower than the
set speed while adjusting=>
& in ''Description " on page 128 .
If the vehicle in front accelerates, Adaptive Cruise Control a lso acce l­
erates up to the speed that you have set.
Situations requiring driver intervention
In some situat ions you will have to use the foot brake and slow the
vehicle down in order to keep a safe distance from vehicle in front of
you or to avoid a rear-end co llision . In this situation, a symbo l
appears and a warning tone sounds =>
page 135.
Passing another vehicle
If you move into the passing lane and no vehicle is detected ahead,
Adaptive Cruise Contro l accelerates to the speed you have set and
maintains it.
Overriding ACC
You can increase your speed at any time by stepping on the acceler­
ator pedal. After you release the accelerator pedal, the system
adjusts back down to the speed you previously set.
& WARNING
• 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.
(I] Tips
Please note that the amount of acceleration the Adapt ive Cru ise
Control uses depends on the Distance setting selected. DISTANCE 1
gives you acceleration that is dynam ic and sporty. DISTANCE 4, on the
other hand, gives more moderate acce leration. For more information
about the time intervals =>
page 133, "Ho w is the distance set?". •
Applies t o ve hicles: w ith Ad ap tiv e Cr uise Contr ol
Switching the system on and off
Switching the system on
-Pull the lever to position (D.
"' "' M ~ w
" m
Fig. 140 Control
lever: Switching on
and off

Adaptive Cruise Control -____________ ___,__ __ ____.
Switching the system off
-Press the lever to position@ (latched). •
Applies to v ehi cle s: w ith Ad ap tiv e Cruis e Cont ro l
How is the speed stored?
Fig . 141 Control
leve r: Stor in g spee d
With the system sw itched on the speed is stored as follows:
- Drive at the speed you want. The speed must be between
20 and 95 mph (30 and 150 km/h) .
- Press the SET button to store the desired speed .
After the [SE TI button is released, the current speed is stored and
ma intained .
The ins trument clus ter displ ay show s the stored speed wi th a red
ind icator light~
page 135.
(I] Tips
For safety reasons, the stored speed is erased when the ig nit ion or
the ACC is turned off .•
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Applies to vehicles : w ith A dapt ive Cruise Cont rol
Changing stored speed
Speed can be changed without touching the accelerator
or brake pedal .
Increasing speed
...
"' M
w .., a,
Fig. 142 Con tro l
lever: Chan ging spee d
-Press the lever briefl y upwards G). USA models: Speed
increases by about 2.5 mph. Canada models: speed will
increase by one mark on the speedometer scale.
- Press the lever upwards
0 and hold it. As long as you hold
the lever up, the light diode display in the speedometer
LED display moves forward and the speed is increased .
Reducing speed
-Press the lever briefly downwards Q. Speed decreases by
2.5 mph. Canada models: speed will decrease by one mark
on the speedometer scale.
- Press the lever downwards
O and hold it. As long as you
hold the lever down, the light diode display in the speed­
ometer LED display moves backward and the speed is reduced .
~
Vehicle care Do-it-yourselt service iTechnical data

1111....__A_ d_ a_,_ p_t _i_ v _e _ C_r_ u_ i_ s_ e_ C_ o_ n_ t_ r_ o_ l __________________________________________ _
DISTANCE 1
Symbol ~-~---
Time interval 1 second
Dynamics Sporting
Distance at 25 mph (40 km/h ) 36 Feet (11 Meters)
Distance at SO 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 increase s the risk of a crash
and ser ious personal injury.
• Following other vehicles too closely, particularly at higher
speeds inc reases the r isk of collisions and serious personal injury.
• Setting short distances to the traffic ahead redu ce s the time
and d istance available to br ing your vehicle to a safe stop and
make s it even more ne ce ss ary to pay clo se attention to traffi c.
• Always select a speed and distance to traffic ahead that is safe
and appropriate under the prevailing traffi c, road, weather and
lighting cond itions.
• Never rely on the distance control feature of ACC alone to
prevent rear -end collisions . Always be prepared to b rake and take
ev asive action to avoid collisions and other accident situ ations .
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Contr ol may not be able to
slow your vehicle safely . If closing speed is too high , you must
apply the brake s yourself to reduce the ri sk of a rear -end cra sh.
• Always select a g reate r following di stance to the vehicle ahead
on wet road s than on dry road s.
• Always read and heed the information and WARNINGS~
& in
" Description " on
page 128 .
DISTANCE 2 DISTANCE 3 DISTANCE 4
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 us ing the slider sw itch on the leve r and
throug h Adaptive Crui se Control in the M MI menu~
page 138. The
sett ings in the MMI menu are sto red automatically and allocated to
t he remote cont ro l key .
• If the distance was not set in the MMI menu Adapt ive Cruise
Control , it is reset to the factory sett ing DISTANCE 3 when the ign i­
tion is turned on. •

lffll..__A_ d_a_ p,__ t_iv _ e_ C_r _u _ i_ s _e _ C_ o_ n_t _ r_ o _ L ___________________________________________ _
• -0,11,c::::, Driving in tr affic: The warning light c:::::,11 .. -::::::, shows that a
vehicle moving in yo ur lane of travel h as been de tecte d up fron t in
your lane o f travel. Your speed is adjusted accord ing to the speed of
the vehicle up front. ACC accelerates an d brakes automat ically within
the system's capabil ities .
• -011 ,,-0 Request for driver to assume control : The re d flashing
warning light
c:::::, 11 .. c::::, means Request for driver to assume control.
Yo u as the driver must slow the vehicle with the foot brake . T he
symbo l
-::::::,11,, c::::, t el ls you that the Adapt ive Cr uise Contro l is not able
to slow the vehicle down e nough to keep a enoug h distance to the
vehicle in front of you. A wa rning to ne signa l will a lso sound w hen the
symbol appears .
& WARNING
Improper use of the Adaptive Cruise Control features and inatten­
tion can lead to an crash and serious personal injury.
• 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 th e risk of a rear-end crash.
• Always sele ct a greater following di stance to the vehicle up
ah ead on w et roads than on dry roads.
• Always read and heed the information and WARNINGS~
& in
" Description " on
page 128.
[ i J Tips
• If the Adapt ive Cruise Control in itiates braking, the hydraulic
bra ke system is under pressure . Therefore, t he b rake pedal distance
is shorter and the pedal feels "harde r" .
• If yo u use the acceler ator to go f aster th an the speed o f the
vehicle ahead of yo u, the d river intervention prompt will not be
accompanied by a warning to ne.
• If the speed you previously set is exceeded, t he indicato r light in
t he speedomete r will sw itch o ff. •
A ppli es to veh icles : w ith Adaptive Cruise Co ntrol
Display in the instrument cluster
You should hav e the supplementary information
displayed here, p articularly on your first trips .
Fig. 147 Displ ay i n
t he in strument clu ste r
Scr oll throug h the av ail able inform ation dis plays by br ie fl y t appi ng
the (RESE T) button at the end of the windshield w iper lever . You can
sele ct a nd information from the trip comp ute r, navigation sys tem or
Adaptiv e Cr uise Control.
© Vehicle sy mbol
® St atu s
© Distan ce
© Vehicle symbol
Th e veh icle symbol indicates whe ther the sy stem has de te cted a
moving veh icle up front in your lane of travel.
• When no moving ve hicle is detected up fro nt, only the
outline of
the vehicle
is d isp laye d.
• A
gray vehicle wi ll appear when a moving vehicle is de tected up
ahead .
• A
red vehicle will appea r if th e s itua tio n de te cted will s oo n l ead to
a requ est for the driver to assume contro l. .._