2016 AUDI S8 Owners Manual

-The windshield is being defrosted~ page 79.
-The brake pedal is pressed sever al t imes in a
row .
- T he battery charge level becomes too low .
- High power cons umption .
Switching the ignition off automa tic ally
To prevent the battery from dra ining, the ignition
will sw itch off
auto mati call y when all of the fol­
lowing cond itions have been met:
- The vehicle has already been driven.
- The eng ine has been turned
off by the Start-
Stop -System*.
- The driver's door is opened .
- The driver's seat bel t is removed.
- The brake pedal is not p ressed down.
- The veh icle is stationary.
In this case, the activated low beam will be re­
p laced by the s ide marker lights. The side marker
lights will switch
off after appro ximately 30 mi­
nutes or when you lock the veh icle.
If the Start-Stop System has
not turned off the
engine or if you have sw itched the Start-Stop sys­
tem
off manually , the ignition will not be auto­
mat ica lly switched
off and the engine w ill contin­
ue to run~& .
& WARNING
Never allow the engine to r un in confi ned
spaces - da nger o f as phyxia tio n.
(D Tips
-
If you shift in to the D, Nor S posit ions after
shifti ng into reve rse, the veh icle must be driv­
en faster th an 6 mph (10 km/h) in order for
t he eng ine to swi tc h
off aga in.
D rivi ng
Switching the Start-Stop-System on/off
manually
Applies to: vehicles with Start-Stop-System
If you do not wish to use th e system, you can
switch it off manually.
Fi g. 93 Center console: Start-Stop -System button
.. To switch the Start-Stop-System off/on man­
ually, press the
l(A) ~ I button. The LED in the but­
ton turns on when the system is switc hed
off.
(D Tips
If you sw itch the system off during a stop
phase, the engine will start aga in automati­
cally .
Messages in the instrument cluster display
Applies to: vehicles with Start-Stop -System
Start-Stop system deactiv ated: Plea se restart
engin e manually
This message appears when spec ific conditions
are not met during a stop phase and the Start­
Stop-System will
not be able to resta rt the en­
gine.
If the Dor R selector leve r pos itions we re
engaged, P w ill be sele cted automatically. The
engi ne m ust be st arted wi th t he
I START ENGINE STOP! button .
Start-Stop s yst em : S y stem fault! Function un­
available
There is a malfunction in the Start-Stop-System.
Drive the vehicle to an a uthorized repair facility
for serv icing as soo n as poss ible to cor rec t the
malfunction .
87

Driving
Speed warning system
Introduction
The speed warning system helps you to stay un­
der a specified maximum speed .
The speed warning system warns you if you are
exceeding the maximum speed that you have set .
You will hear a warning tone when your speed ex ­
ceeds the stored value by approximately 3 mph
(3 km/h). An indicator light . (USA models) .
(Canada models) in the instrument cluster dis­
p lay also tur ns on at the same time. The indicator
light •• turns off when the speed decreases
be low the stored maximum speed.
Setting a threshold is recommended if you would
like to be reminded when you reach a certa in
maximum speed. Situations where you may want
to do so include driving in a country with a gener ­
al speed limit or if there is a specified maximum
speed for winter tires.
(D Tips
Even though your vehicle is equipped with a
speed warning system, you should still watch
the speedometer to make sure you are not
driving faster than the speed limit.
Setting the threshold
You con set, change and delete the threshold in
the MMI.
.,. Select:
ICARI function button > Car systems
contro l button > Driver assist > Speed warning.
You can set any threshold between 20 mph (30
km/h) and 150 mph (240 km/h). Settings can
each be adjusted in increments of S mph (10 km/
h).
88
Cruise control system
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h) .
0
f
®l
0
Fig. 94 Contro l lever wi th se t but ton
Fig. 95 D isp lay : Selected speed
g M 0 ±
~
.,. Pull the lever to position (D <::> fig . 94 to switch
the system on.
.,. Drive at the speed you wish to set .
.,. Press button @to set that speed .
The stored speed and the indicator light
Iij;\1)~14 (US models) !Bl (Canadian models) ap­
pear in the instrument cluster display
c> fig. 95.
The display may vary, depending on the type of
display in your vehicle.
This information is also shown briefly in the
Head-up Display*.
The speed is kept constant via an engine output
adjustment or active brake intervention. ..,_

...,
A WARNING ,~ -
- Always pay attention to traffic even when
the cruise control is sw itched on. You are al­
ways respons ible for your speed and the dis­
tance between your vehicle and other
vehicles.
- For safety reasons, the cruise control should
not be used in the city, in stop-and-go traf­
fic, on twisting roads and when road condi­
tions are poor (such as ice, fog, gravel,
heavy ra in and hydroplaning) -risk of acci­
dent.
- T urn off the cruise control temporar ily when
entering turn lanes, highway exit lanes or in
construction zones.
- Please note that inadvertently "resting"
your foot on the accelerator pedal causes
the cruise control not to brake. This is be­
cause the cruise control is overridden by the
driver's acceleration.
- If a brake system ma lfunction such as over­
heating occurs when the cruise control sys­
tem is switched on, the braking function in
the system may be switched off. The other
cruise control functions remain active as
long as the indicator light
mI!Jm (US mod­
els)
;ii (Canadian models) is on.
The brake lights illum inate as soon as the
brakes decelerate automatically.
Changing speed
.,. To increase/decrease the speed in increments,
tap the lever in the
010 direction Q page 88,
fig. 94.
.,. To increase/decrease the speed quickly, hold
the lever in the
010 direction until the de­
sired speed is displayed.
You can a lso press the accelerator pedal down to
increase your speed, e.g. if you want to pass
someone . The speed you saved earlier will re-
"' sume as soon as you release the accelerator ped-
o
~ al. .... oJ) Lil
.... oJ) ....
Driving
If, however, you exceed your saved speed by
6 mph (10 km/h) for longer than S minutes, the
cruise control w ill turn off temporarily. The green
symbol
AiW~1~ (US models) ! l'I in the display is
rep laced with a white symbol. The saved speed
remains the same .
Presetting your speed
You can preset your desired speed while the vehi­
cle is not moving.
... Switch on the ignition.
.,. Pull lever into position
(D q page 88, fig. 94.
.,. Press the lever in the 0 or 0 direction to in-
crease 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)
q page 88, fig. 94, or
.,. Dr ive for longer than S min utes a t more than
S mph (10 km/h) above the stored speed.
Switching off completely
.,. Press lever into pos it ion @ (clicked into p lace),
or
.,. Switch the ignition off .
The system retains the saved speed if you deacti­
vate the cruise control temporarily. To resume
the saved speed, release the b rake pedal and pull
the leve r to position (!).
Switching the ignition off erases the saved speed.
A WARNING
You should only return to the saved speed ifit
i s not too fast for the current traffic condi­
tions - risk of an accident!
89

Audi adaptive cruise control and braking guard
Audi adaptive cruise
control and braking
guard
Introduction
Applies to: vehicles with Audi adaptive cruise control
The adaptive cruise contro l system assists the
driver by regulating vehicle speed and helping to
maintain a set distance to the veh icle ahead ,
within the limits of the system. If the system de­
tects a moving vehicle up ahead, adaptive cruise
control can brake and then accelerate your vehi­
cle. This helps to make driving more comfortable
both on long highway stretches and in stop-and­
go traffic.
The braking guard system can warn you about an
impending collision and initiate braking maneu­
vers
c::> page 96.
Adaptive cruise control and braking guard have
technical limitations that you must know, so
please read this section carefully, understand
how the system works and use them properly at
all times.
General information
General information
Applies to: veh icles with Audi adaptive cruise control
Fig. 96 Fro nt of the ve hicle: sensors and video camera
The areas that contain the radar and ultrasonic
sensors and the video camera
c::> fig. 96 must nev­
er be covered by stickers or othe r objects or ob­
structed with dirt, insects, snow or ice that will
interfere with the adaptive cruise control system
and braking guard. For information on cleaning,
90
refer to c::> page 206. The same applies for any
modifications made in the front area .
The function of the adaptive cruise control sys­
tem and braking guard is limited under some
conditions:
- Objects can only be detected when they are
w ithin sensor range
c::>page 92, fig. 99.
- Th e system has a limited ability to detect ob­
jects that are a short distance ahead, off to the
side of you r vehicle or moving into your lane .
- Some kinds of vehicles are hard to detect; for
example motorcycles, veh icles with high
ground clearance or overhanging loads may be
detected when it is too late or they may not be
detected at all.
- When driving through curves
c::>page 91.
-Stationary objects c::> page 91.
A WARNING
Always pay attention to traffic when adaptive
cruise control is switched on and braking
guard is active. As the driver, you are still re­
sponsible for starting and for maintaining
speed and distance to other objects. Braking
guard is used to assist you. The driver must
always take act ion to avoid a collision . The
driver is always respons ible for braking at the
correct time.
- Improper use of adaptive cruise control can cause collisions , other accidents and serious
personal injury.
- Never let the comfort and convenience that
adapt ive cru ise control and braking guard
offe r dist ract you from the need to be alert
to traffic conditions and the need to remain
in fu ll contro l of your ve hicle at all times,
- Always remember that the adaptive cruise
control and braking guard have limits -they
will no t 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, s uch as vehicles stopped
in a traff ic jam, a stalled or disab led vehicle.
If registered by the radar sensors, vehicles
or obstacles that are not moving can trigger
a co llision warning and if confirmed by the
video camera, an acute co llision warning.

Audi ada pti ve c ruise contr ol and br akin g gu ard
-For safety reasons, do not use adapt ive
cruise contro l when driv ing on roads with
many curves, when the road surface is in
poor condit ion and/or in bad weather (such
as ice, fog, gravel, heavy rain and hydroplan­
ing) . Us ing the system under these condi­
t ions could result in a collision .
- Switch adaptive cruise contro l off tempora­
rily when driving in turn ing lanes, on ex­
pressway exits or in const ruc tion zones. This
preven ts the vehicle from accelerating to
the set speed when in these situat ions .
- T he adapt ive cr uise con trol system will no t
br ake by i tself if you pu t your foot on the ac­
celerator peda l. Doing so can override the
speed and distance regulation.
- Whe n approaching stat ionary obje cts such
as stopped traffic, adapt ive cruise control
will not respo nd and braking guard will have
limited function .
- The adaptive cruise control system and
brak ing guard do not react to peop le, ani­
ma ls, objects crossing the road or oncom ing
objects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard
rai ls, t he entrance to a tunnel, heavy rain or
ice.
- Never follow a veh icle so closely that you
cannot stop your vehicle safely . The adap­
t ive cr uise control cannot slow or brake the
vehicle safely when you follow another veh i­
cle too close ly. Always remember th at the
au tom atic b raking function ca nnot br ing the
vehicle to a sudden or emergency stop un­
der these conditions .
- T o preven t unintended operation, alw ays
switch AC C off when i t is not be ing used.
(D Note
The sensors can be displaced by impacts o r
damage to the bumper, whee l housing and
underbody. That co uld affect the adaptive
cru ise con trol sys tem and braking guard.
Have your a uthorized Audi dea ler or author·
ized Aud i Service Facility check their function.
In curves
Applies to: vehicles with Audi adapt ive cruise control
F ig. 9 7 Exampl e: d ri ving into a curve
When driving into a curve¢ fig. 97 and out of a
curve, the adaptive cruise control may react to a
vehicle in the next lane and apply the brakes . You
can override or prevent the b raking by press ing
the accelerator pedal briefly.
Stationary objects
Applies to: vehicles with Audi adaptive cruise control
Fig. 98 Exa mple : object changing la nes a nd s tatio nary ob ·
j e ct
T he adaptive cruise control system only reacts to
objects that are moving or that the system has
already detected as moving. For example, if ave­
hicle @, which has already been detected by the
adaptive cruise control, turns or changes lanes
and another stat ionary vehicle @ is located in
front of that vehicle, the system will not react to
t h e stationary veh icle.
91

Audi adaptive cruise control and braking guard
Audi adaptive cruise
control
Description
A pplies to: ve hicles w ith Aud i adapt ive cruise co ntro l
F ig. 99 Detection range
What can adaptive cruise control do?
The adaptive cruise control system uses video, ra­
dar and ultrasound . Moving vehicles ahead can
be recognized up to about 650 feet (200 m)
away .
On open roads with no traffic, adaptive cru ise
control works like a regular cruise control sys­
tem. The stored speed is ma inta ined. When ap­
proaching a moving vehicle detected up ahead,
the adaptive cruise cont rol system automatically
slows down to match that vehicle's speed and
then maintains the distance that the driver previ­ ously stored. As soon as the system does not de­
tect a vehicle up ahead, adaptive cruise control
accelerates back up to the stored speed.
In stop-and-go traffic, adaptive cruise control can
brake until the vehicle stops and accelerate again
under certain conditions and if this is possible
within the system's limits and capabilities
¢ page 94 . Adaptive cruise control will not
make an emergency stop .
Which functions can be controlled?
When you switch adaptive cruise control on, you
can set the current speed as the "control speed"
¢ page 92, Switching on and off.
When driving, you can stop cruise control
¢ page 94 or change the speed ¢ page 93 at
any time.
92
You can also set the distance to the object ahead and set the adaptive cruise control driving pro­
gram
¢ page 94.
Switching on and off
Applies to : vehicles wit h Audi ada ptive c ru ise control
Fig. 100 Selector lever: switch ing on/off
Fig. 101 Instrument cluste r: adapt ive cruise control
You can set any speed between 20 mph and 95
mph (30 and 150 km/h) .
Indicator lamps and messages in the instrument
cluster display inform you about the current sys­
tem status and settings.
An additional indicator appears in the Head-up
D isplay* .
Switching adaptive cruise control on
.,. Pull the lever toward you into position ©
¢fig. 100 . ACC standby appears in the instru­
ment cluster display.
Setting the speed and activating regulation
.,. To set the current speed, press the ISETI button
¢ fig. 100. The set speed is shown in the tach­
ometer @ and is also shown br iefly in the dis-
play @¢
fig. 101 . ..,.

Audi adaptive cruise control and braking guard
.. You must also press the brake pedal when the
vehicle is stopped .
Switching adaptive cruise control off
.. Push the lever away from you into position @
until it clicks into place. The message
ACC off
appea rs.
@ Indicator lights
II-Adapt ive cru ise control is switched on . No
vehicles are detected up ahead. The stored speed
is ma inta ined .
• -A moving vehicle is detected up ahead . The
adapt ive cruise control system regulates the
speed and distance to the moving vehicle ahead
and accelerates/brakes automatically.
(-) -Adaptive cru ise control is switched on . A
mov ing vehicle up ahead was detected . Your veh i­
cle remains stopped .
• -When automatic braking is not able to keep
enough d istance to a previously detected moving
veh icle up ahead, you must take control and
brake
c::> page 95, Prompt for driver interven­
tion.
© Display
If adaptive cruise control is not shown in the dis­
play, you can call it up with the multifunction
steer ing wheel buttons c::>
page 23.
Based on the symbols in the display, you can de­
termine if the system is ma inta ining a distance to
the vehicle ahead and what that distance is.
No vehicle -No vehicle ahead was detected.
White vehicle -A vehicle ahead was detected.
Red vehicle -Prompt for the driver to take action
c::>page 95.
Both arrows on the scale © indicate the distance
to the vehicle ahead. No arrow appears when the
vehicle is on an open road and there is no object
ahead . If an object is detected ahead, the arrow
moves on the scale .
The green zone on the scale shows the stored dis­
tance . For information on chang ing the stored
distance, refer to
c::> page 94. If the distance se-lected is too
close or may soon become too close,
the arrows move into the red zone on the scale .
A WARNING
Improper use of the adaptive cruise control
can cause collisions, other accidents and seri­
ous personal injuries.
- Pressing the
ISETI button when driving at
speeds below 20 mph (30 km/h), will auto­ matically accelerate the ve hicle to 20 mph
(30 km/h), which is the minimum speed
that can be set.
(D Tips
-If you switch the ignit ion or the adaptive
cruise control off, the set speed is erased
from the system memory .
- You cannot switch the Electronic Stabiliza­
tion Control (ESC) to the SPORT mode when
adaptive cruise control is switched on .
Changing the speed
Applies to: vehicles with Aud i adapt ive cru ise control
0
f
•
0
Fig. 102 Selector lever: chan gin g t he speed
.. To increase or reduce the speed in increments,
tap the lever up or down .
.,. To increase or reduce the speed quickly,
hold
the lever up or down until the red LED@reach­
es the desired speed c::>
page 92, fig. 101.
Following any changes, the new stored speed will
be displayed br iefly in the display @c::>
page 92,
fig. 101 .
93

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.