2016 AUDI S8 brake

Audi adaptive cruise control and braking guard
Driving in stop -and-go traffic
Applies to: ve hicles w ith Audi adaptive cruise co ntro l
The adaptive cruise control system also assists
you in stop-and-go traffic.
If a previous detected
vehicle ahead stops, your vehicle will brake to a
stop, within the limits of the system.
• To resume driving with adaptive cruise control,
tap the accelerator pedal or
• Pull the lever toward you into position @
<=>page 94, fig. 103.
(Di Tips
-If adaptive cruise control is active and your
vehicle does not start driving as expected
after pulling the lever once, you can start
out again by tapping the accelerator pedal.
- If an obstacle is detected when your vehicle
starts driving, the system will prompt you
to take over<=>
page 95. Your vehicle will
drive more slowly when starting. This may
also happen in some situations when no ob­
stacle is apparent.
Interrupting cruise control
App lies to: ve hicles w ith Audi adaptive cruise co ntro l
Fig. 103 Selector lever
Requirement: adaptive cruise control must be
switched on.
Overriding cruise control
• To accelerate manually, pull the lever toward
you into position@and hold it there . The mes­
sage
ACC override appears . Or
• press the accelerator pedal.
• To resume cruise control, release the lever or
take your foot off the accelerator pedal.
94
Canceling cruise control while driving
• Move the lever into position @. The message
ACC standby appears. Or
• press the brake pedal.
• To resume the stored speed, move the lever in­
to position @.
Canceling cruise control when stopped
• Push the lever away from you into position@.
The message
ACC standby appears.
• To resume cruise control, press the brake pedal
and pull the lever toward you into position @.
A WARNING
Never resume the stored speed if the speed is
too high for prevailing road, traffic or weather
conditions.
Setting the distance
App lies to: vehicles with A ud i adapt ive cru ise contro l
Fig. 104 Selector lever: setting the dista nce
• Tap the switch to display the current set dis­
tance
<=> fig. 104.
:;: N 0
±
ci!i
• To increase or reduce the distance by incre­
ments, tap the switch again to the left or right.
The distance between the two vehicles will
change in the instrument cluster display .
When approaching a moving vehicle up ahead,
the adaptive cruise control system automatically brakes to match that object's speed and then
maintains the stored distance.
If the vehicle
ahead accelerates, adaptive cruise control will al­
so accelerate up to the stored speed.
The higher the speed, the greater the distance in
yards (meters)
<=> A . The Distance 3 setting is
recommended.

Audi adaptive cruise control and braking guard
The distances provided are specified values . De­
pending on the driving situation and the how the
vehicle ahead is driving, the actual distance may
be more or less than these target distances.
The various symbols for the time increments ap­
pear briefly in the information line@~
page 92,
fig. 101 when you change the settings.
~-~ --- Distance 1: This setting corresponds
to a distance of 92 feet/28 meters when travel­
ing at 62 mph (100 km/h), or a time interval of 1
second.
~ -- ~-- Distance 2: This setting corresponds
to a distance of 118 feet/36 meters when travel­
ing at 62 mph (100 km/h), or a time interval of
1.3 seconds .
~--- ~-Distance 3: This setting corresponds
to a distance of 164 feet/SO meters when travel­
ing at 62 mph (100 km/h), or a time interval of
1.8 seconds.
~ ---- ~ Distance 4: This setting corresponds
to a distance of 210 feet/64 mete rs when travel­
ing at 62 mph (100 km/h), or a time interval of
2 .3 seconds.
.&_ WARNING
Following other vehicles too closely increases
the risk of col lisions and ser ious personal in­
jury.
- Setting short distances to the traffic ahead
reduces the t ime and distance available to
bring your vehicle to a safe stop and makes
it even more necessary to pay close atten­
tion to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe following
distance fo r the traffic, road and weather
con ditions.
(0 Tips
-Distance 3 is set automatically each time
you switch the ignition on.
- Your standard sett ings are automatically
stored a nd assigned to the remote control
key being used.
Selecting the driving mode
Applies to: vehicles with Audi adaptive cruise control
• Select the desired driving mode in drive select
~page 106.
(D Tips
Your settings are automatically stored and as­
signed to the remote control key being used.
Prompt for driver intervention
Applies to: vehicles with Audi adaptive cruise control
Fig . 105 Instrument cluste r: request for driver interve n­
tio n
In certain situations, the system will prompt you
to take action. This could happen, for example, if
braking by the adaptive cruise control system is
not enough to maintain enough distance to the
vehicle ahead.
T he ind icator light . and the symbol in the dis ­
play will warn you about the situation~
fig. 105.
You will also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down .
95

Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to: vehicles w ith Aud i adapt ive c ru ise co ntro l
Fig. 106 Instrument cluster : approac h warning
Braking guard uses radar sensors and a video
camera. It also functions within the limits of the
system when adaptive cruise control is switched
off .
What can braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes suddenly
or if your own vehicle is traveling at a high speed
and approaching a vehicle up ahead that is mov­
ing more slowly. Braking guard does not react if
it cannot detect the situat ion.
The system advises you of various situations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If the
vehicle ahead brakes sharply, you will not be
able to avo id a coll is ion. The indicator light.
in the display comes on.
- The
approach warning is given when a detected
vehicle up ahead in your lane is moving much
more slowly than you are or if it brakes sharply.
When this warning is g iven, it may only be pos­
sible to avo id a collision by swerving or braking
sharp ly. Th e indicator light. and indicator in
the display will warn you about the danger
qfig. 106. You will also hear an acoustic signal.
If you do not react fast enough or do not react at
all to t he situation, braking guard will intervene
by braking and the message
braking guard inter­
vention
will appear.
l) Thi s is not available in some countries.
96
-If a collision is imminent, the system will first
provide an
acute warning by briefly and sharply
app ly ing the brakes.
- If you do not react to the acute warning, brak­
ing guard can brake with increasing force with­
in the limits of the system. This reduces the ve­
hicle speed in the event of a collision.
- The system can initiate maximum braking
shortly before a co llision
1
) . Full deceleration at
high speeds occurs only in vehicles with adap­
tive cruise control and side assist (pre sense
plus) .
- If the braking guard senses that you are not
braking hard enough when a collision is immi­
nent, it can increase the braking force .
- The pre sense functions also engage when a
collision is imminent
qpage 187.
Which functions can be controlled?
You can switch braking guard and the distance/
approach warning on or off in the MMI
¢ page 9 7, Settings in the MMI.
A WARNING
Lack of attention can cause collisions, other
accidents and serious personal injuries. The
braking guard is an assist system and cannot
prevent a collision by itself . The driver must
always intervene. The driver is always respon­
sible for braking at the correct time.
- Always pay close attention to traffic, even
when the braking guard is switched on. Be
ready to intervene and be ready to take
comp lete control whenever necessary. Al­
ways keep the safe and legal distance be­
tween your vehicle and veh icles up ahead.
- Braking guard works within limits and will
not respond outside the system limits, for
example when approaching a stopped vehi­
cle or stationary obstacle (end of a traffic
jam or vehicle that has broken down in traf­
fic).
- Always remember that the radar sensor for
-
the brak ing guard works only within def ined ..,.

Audi adapt ive cruis e control and braking gua rd
de tect ion and range limits t hat may prevent
the proper detection of other veh icles.
- The radar sensor's function and range can
be reduced by rain, snow and heavy spray.
Moving veh icles up ahead may not be
promptly detected or may not be detected
at all .
- Reflective surfaces including crash barriers
or tunnel entrances may impair the funct ion
of the radar sensor.
(D Tips
- You can cancel the brak ing with increasing
force that is init iated by the system by b rak­
i ng yourself, by accelerat ing noticeab ly or
by swerving .
- Braking guard error messages ¢
page 9 7.
- Keep in mind that braking guard can brake
unexpected ly. Always secure any cargo or
objects that you are transport ing to reduce
the risk of damage or injury .
Settings in the MMI
Appl ies to: ve hicles with Audi a daptive cruise co ntro l
~ Select: I CARI funct ion button > Car s ystem s
control button > Driv er a ssis t > Audi braking
guard .
S ys tem -
Switch braking guard On and Off . When
you swit ch the ig nitio n on, the message
Audi
braking guard off
appe ars if the system is
switche d off.
Early warning -The distance and approach wa rn­
in gs in the display can be sw itc hed
On/ Off.
0) Tips
- Your settings are automatically stored and
ass igned to the remote cont rol key being
used at the time the sett ings a re made.
- If you rest rict the ESC, the bra king guard al­
so switches itse lf off
Q page 192 .
- Switch braking guard off when yo u are load ­
i ng t he ve hicle on to a vehicle ca rr ier, t rain,
s hi p or other type of transportation . This
c a n prevent undesired warnings from the
br aking gua rd system.
Messages
App lies to : vehicles wi th Audi ada ptive c ruise con trol
Braking guard : off
T his dr iver message appears if the system is
tu rned off via t he i nfot ainment. O therwise, if the
system is t urne d off, the information appears ev­
ery time shortly after t he start o f the trip .
T he driver message a lso appea rs if the system is
not avai lab le due to a m alfu nction o r if the ES C i s
not switched on¢
page 192 . If th is is the case,
the sys tem wi ll not provide warnings abou t a
poss ib le collision .
Braking guard : a ctivated
This dr iver message appears if sharp brake pres­
su re was applied due to an acu te warning .
ACC: Unava ilable!
ACC and Audi braking guard: not available
T he system cannot detec t moving vehicles up
ahead co rrectly and is swi tc h ed off. The senso rs
have been displaced or are not working proper ly.
T he Audi pre sense funct ions may also be affect ­
e d. D rive to your authorized A udi deal er or au­
thori zed Audi serv ice facility immediately to have
the malfunction corrected .
ACC: currently unavailable. No senso r vi sion
ACC and braking guide : current ly unavailable .
No s ensor vi sion
Th is message appears if the senso r view is ob­
structed, for examp le by leaves, snow, heavy
spray or dirt. Clean the senso rs
Q page 90 ,
fig. 96.
ACC: Currently unavailable . Gradient too steep
The road exceeds the maximum poss ible angle
for proper adaptive cruise co ntro l operat ion .
Adaptive cruise control is switched off .
ACC: Only available in D, Sor M
Select the D/S or M selector leve r position.
ACC : currently unavailable . Parking brake ap ­
plied
97

Audi adaptive cruise control and braking guard
The adaptive c ruise contro l sys tem swi tches off
automatically if the park ing brake is set .
ACC: Currently unavailable. Stability control
(ESC) input .
This message appea rs if the Electronic S tabiliza­
tion Contro l (ESC) is wor king to help st ab iliz e the
ve hicl e. In thi s case, ada pti ve cr uise co nt rol
sw itches
off au tom atic ally.
ACC off: Manual control!
This message appea rs when adapt ive cr uise con­
trol cannot set the pa rking brake . Press the brake
pedal to p revent the vehicle from rolling .
•••
Three whi te dots a ppea r if a se tt ing cannot be se ­
lected with the se lector lever. For example, t his
ha ppens if adaptive c ruise contro l cannot resume
driving in stop -and-go traffic beca use one o f the
conditi ons requ ired for ACC to work is not
p resent .
Door open
The ada ptive cruise cont ro l sy stem cannot sw itch
on whe n a door is open .
Stationary object ahead
This message appea rs if you would like to switc h
adapt ive cr uise control o n and there is a stat io n­
ary vehicle or obs tacle d irectly ahead of your ve ­
h icle .
98

positions, you must press the button on the se­
lector lever
c:::> fig. 124 and/or press the brake
pedal.
You must press the brake pedal to engage a se­ lector lever position when the engine is runn ing
while the vehicle is stationary. The arrows
c:::> fig . 125 indicate when you need to press the
button on the selector lever.
The selector lever does not lock if you shift from D to R within one second. This a llows you to
"rock" the vehicle to free it when it is stuck.
P -Par k
The whee ls are loc ked in this pos it ion. On ly shift
into park when the vehicle is stationary
c:::> .&. . To
engage the P selector lever position, press the
button on the selector lever and shift into the P
position .
You can on ly shift out of park when the engine is
running and you are pressing the brake pedal.
Press the button on the se lector lever to release
the parking lock and se lect the desired selector
lever position .
P engages automatically when you switch the en­
gine off while D, Sor R is engaged or in manual
mode.
I f you sw itch the engine off when N is engaged,
the transmission remains in N for approximately
30 minutes and then Pis engaged .
You must use the emergency re lease proced ure
to release the parking lock before tow ing the ve­
hicle
c:::> poge 117.
R - Reverse
The reverse gear is engaged in this pos ition. On ly
select reverse when the vehicle is stat iona ry and
the eng ine is r unning at idle speed
c:::> ,&. . To en­
gage the R selector leve r position, press the but ­
ton on the selector lever, press the brake pedal
and move the selector lever into the R position.
The back-up lights turn on when yo u select the R
se lector lever posit ion while the engine is run­
ning.
Autom atic tran sm iss ion
N -Neutral
The tra nsmission is in idle in th is position. To en­
gage the N selector leve r position, press the but ­
ton on the selecto r lever and shift into the N po­
sition .
If you swi tch the eng ine off when N is engaged ,
the transmission remains in N for approximately
30 minutes and then Pis engaged.
You cannot se lect t he N pos it ion when the igni ­
t ion is swit ched off. When dr iv ing th rough an au ­
tomatic car was h, fi rst select the N position and
then switch the engine off
c:::> table on page 208 .
The veh icle cannot be lo cked when the se lector
lever is in the N position .
DIS -Position for driving forw ard
In the D/S position, the transmission can be op ­
erated either in the normal mode Dor in the
spo rt mode S. Yo u can only se lect the S se lector
lever posit ion when D is engaged . Move t he selec­
tor leve r bac k to engage the S selector lever posi­
tion . To select the D selector lever position again
when S is engaged, move the se lector lever back
c:::> .&. . To shift from N to D when traveling at
speeds below 1 mph (2km/h), press the brake pedal and select the D selector lever pos it ion
c:::> .&. .
In the norm al mode D, the transmission auto­
matically selects the suitable gear ratio . It de­
pends on engine load, vehicle speed and driving
style.
Se lect the
sport mode S for sporty driving . Th e
vehicle makes full use of the eng ine 's power.
Sh ift ing may become noticeable when accelerat­
i ng .
The S se lector lev er position engages automati­
ca lly when you select the dynamic mode in Audi
drive select.
A WARNING ,.___
- Never engage R or P while driving . It could
cause a crash .
113

Automatic transmissio n
-Power is sti ll transmitted to the w heels
w hen the eng ine is r unning at idle. To pre­
vent the veh icle from "creeping", you must
keep your foot on the brake in all selector
lever positions except P and N when the en­
gine is runn ing . Do not inadvertently press
t h e accelerator pedal when the vehicle is
s tationa ry. Otherwise the vehicle will start
to move immediately. This cou ld happen
even if the parking brake is activated.
- Before opening the hood, se lect the P sele c­
tor leve r pos ition and se t the park ing bra ke .
This reduces the risk of a crash . Always read
and follow the applicab le warnings
<=> page 220.
- Never get out of the driver's seat when the
engine is running.
- If you must get out of the vehicle, move the
selector lever securely into the P position
and apply the parking brake.
(D Tips
- If you un intent ionally shift in to the N selec­
tor lever position whi le driving, ta ke your
foot off the accelerator pedal and wait for
the engine to slow down unt il it is idling be­
fore yo u shift into D or S.
Driving tips
Th e gears shi~ automatically .
Starting from a stop
.. Press and hold the brake pedal.
.. Start the engine<=>
page 81 .
.. Press the button on the selector lever and se ­
l ect the D, 5 or R selector lever position
<=> page 112.
.. Wait a moment unti l the transmission shifts.
You w ill not ice a slight moveme nt when the
gear engages .
"' Release the b rake pedal and press the acce lera­
tor pedal <=>,&. .
Stopping temporarily
.. Press the b rake pedal to stop the vehicle, for
example at a traff ic light. Do not press the ac­
celerator pedal when do ing th is.
114
.. To preven t the vehicle from ro lling when yo u
start driving, set t he parking brake when stop ­
ping on large inclines¢,&. .
.. The parking brake will release a utomat ica lly
and the vehicle will start moving once you press
the acce lerato r pedal.
Parking
If the se lector lever is not in the P position whe n
yo u open the drive r's door, the vehicle cou ld roll.
The message
Transmission: Car may roll! Shift
to park!
appears.
.. Press an d hold the b rake peda l
c::> ,&..
.. Set the park ing brake.
.. To engage the P selector lever position, press
the button on the selector lever and shift into
the P position
c::> page 112 .
Under certain conditions such as driving in the
mountains or when towing a trailer, it may be
helpful to switch to manua l mode temporar ily to
shift
manually to adapt to the driving conditions
c::> page 115.
On slopes, act ivate the park ing brake first and
then move the selector lever to the P position .
This prevents too muc h stress from be ing placed
on the locking mechanism .
A WARNING
Read and fo llow all WAR NING S c::> .&. in Se­
le ct ing a selec tor lever posi tion on p age 113.
- The vehicle can also ro ll when the eng ine is
s t o pped .
- Do no t press the acce le ra t o r pedal when
chang ing t he selec to r lever posit io n while
t he vehicle is s tat ionary and the engine i s
r u nning. This co uld result in a crash.
- Never e ngage R or P while driving.
It co uld
cause a crash.
- P owe r is still transmitted to the wheels
when t he e ngine is runni ng at idle . To pre­
vent the vehicle from "creeping", yo u m ust
keep your foot on the brake in a ll selector
lever positions except P and N when the en ­
gi ne is running. Do not inadvertent ly press
the acce le rator peda l when the veh icle is
stat ionary. Otherwise t he vehicle will start
-

to move immediately, even if the parking brake is set. Th is could result in a crash.
- Do not ride the brakes or press the brake
peda l too often or too long when driving
down a hill. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases brak­
ing distance or causes complete failure of
the brake system.
Hill descent control
The hill descent control system assists the driver
when driving down declines.
Hill descent control is activated when the selec­
tor lever is in D/S and you press the brake pedal.
The transm iss ion automatically selects a gear
that is suitable for the incl ine. Hill descent con­
trol tries to mainta in the speed achieved at the
time of brak ing, within physical and technical
limitations. It may st ill be necessary to ad just the
speed with the brakes .
H ill descent contro l switches off once the decline
l eve ls out or yo u press the accelerator pedal.
H ill desce nt control is also act ivated when the
speed is set by starting the cruise control system
¢ page 88.
& WARNING
Hill descent contro l cannot overcome physical
limitations, so it may not be able to mai ntain
a constant speed under a ll conditions . Always
be ready to apply the brakes.
Aut oma tic tr ansm iss ion
Shifting manually
The shift paddles allow the driver to shift the
gears manually .
Fig. 126 Steering whee l: sh ift in g man ually
.. To shift to a higher or lowe r gear temporar ily,
tap the
G) or O shift paddle ¢ fig . 126.
g
:i:
"' CD
.. To switch manual mode on, press the~ but­
ton. An M and the gear that is currently engag­
ed appear in the instrument cluster display @
¢page 112, fig . 123 .
.., To shift up one gear, tap the right shift paddle
G) ¢fig .126.
.., To shift down one gear, tap t he left shift pad­
d le
Q .
.., To switch manua l mode off, press the~ but-
ton again, or
.. Move the selector lever back and re lease it.
T he transmission automatically sh if t s up or down
before critica l engine speed is reached .
T he transmission on ly allows manual shifting
when the eng ine speed is w ith in the pe rm itted
range.
The eng ine braking effect increases when you
downsh ift when go ing downh ill.
Kick -down
Kick-down enables maximum acceleration .
When you press the accelerator pedal down be­
yond the resistance point, t he automatic trans­
mission downsh ifts into a lower gear, depe nding
on vehicle speed and e ngine RPM .
It shifts up in­
to the next higher gear once the maxim um speci-
fied eng ine RPM is rea ched . ...,
115