2016 AUDI A8 light

Driving
(D Note
Always switch off the Start-Stop-System
when driving through water
c::> page 87.
Starting/stopping the engine
A pp lies to: ve hicles w ith Sta rt-Sto p-System
Fig. 91 Instrument cluste r: engin e sw itched off (s top
ph ase)
.. Slow the vehicle to a stop using the brake and
keep pressing the brake pedal. The engine will
switch off . The
[I] indicator light appears in the
information line in the instrument cluster dis­
play.
.. When you take your foot off the brake pedal,
the engine restarts. The indicator light turns
off.
Additional information
The engine will switch off in the P, D, N and S po­
sitions as well as in manual mode. In the P posi­
tion , the engine will also remain off if you take
your foot off the brake pedal. The eng ine starts
again when you select another selector lever po­
sition and take your foot off the brake pedal.
If you select the R position during a Stop phase,
the engine will start again.
Shift from D to P quickly to prevent the engine
from starting unintentionally when shifting
through R.
You can determine for yourself if the engine will
stop or not by reducing or increasing the amount
of force you use to press the brake pedal. For ex­
ample , if you only light ly press on the brake ped­
al in stop-and and-go traffic or when turning, the
engine will not switch off when the vehicle is sta-
86
tionary. As soon as you press the brake down
harder, the engine will switch off.
General information
Applies to: vehicles wi th Start-S top-Sys te m
The standard Start-Stop-mode can be cancelled
for different system-related reasons.
Fig. 92 Instrumen t cluster: e ngin e-Stop temporarily un­
ava ilable
Engine will not switch off
Before each stop phase, the system checks if cer­
tain conditions have been met. For example, the
engine will
not be switched off in the following
situations :
- The engine has not reached the minimum re­
quired temperature for Start-Stop-mode.
- The interior temperature selected by the A/C
system has not been reached .
- The outside temperature is extremely high/low.
- The windshield is being defrosted
c::> page 79 .
- The parking system* is switched on.
- The battery charge level is too low.
- The steering wheel is sharply turned or there is
a steering movement .
- After engaging the reverse gear .
- On sharp inclines.
The
llJ indicator light appears in the information
line in the instrument cluster display
c::>fig . 92.
Engine automatically restarts
The stop phase is interrupted in the following sit­
uations, for example . The engine restarts without
any action by the driver .
- The interior temperature varies from the tem-
perature selected in the A/C system. ..,.

-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
.. 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
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 active lane assist Lane assist
Description
Applies to: veh icles with act ive lane assist
Active lane assist helps you keep your vehicle in
your lane .
Active lane assist detects lane marker lines with­
in the limits
of the system using a camera in the
windshield. If you are approaching a detected lane marker line and it appears likely that you
will leave the lane , the system will warn you by
means of correct ive steering . T he dr iver can over­
ride the correct ive steering at any time. If the ve­
h icle crosses a line, the drive r is also warned by a
light
vibration in the steering wheel. The vibra­
tion warning must be switched on in the MMI for
this to happen. Active lane assist is operable
when the line marking the lane is detected on at
least one side of the vehicle.
The system is designed for driv ing on freeways
and expanded highways and thus works only at
speeds of 40 mph (65 km/h) or more.
Applies to vehicles with side assist* : If you acti ­
vate your turn signal when active lane assist is
ready and when activated side assist has class i­
fied a lane change as critical because of vehicles
traveling alongside you or coming closer, there
will be noticeable corrective steering just before
you leave the lane . Th is is done to try to keep
your veh icle in the lane .
Applies to vehicles without side assist*: when the
system is ready, it does not warn you if you acti ­
vate your turn signal before driving across a lane marker line. In th is case, it assumes that you are
changing lanes intent ionally.
If the vehicle is also equipped with Audi adaptive
cru ise control*, the corrective steering w ill be
more spec ific in regard to the driving situation .
I n addition to the lane marker lines, the system
can also take into acco unt other objects such as
guard rai ls. If they are detected in close prox imi­
ty to the vehicle, Audi active lane assist helps
prevent the vehicle from driv ing too close to
them. There is also passing assistance . The sys-
Audi act ive lane ass ist
tern does not provide any corrective steering if it
detects that you are passing another vehicle .
A WARNING
--The system warns the driver that the vehicle
is leaving the lane using correct ive steering.
The driver is always responsible for keeping
the vehicle within the lane.
- The system can assist the dr iver in keeping
the vehicle in the lane, but it does not steer
by itself . Always keep your hands on the
steer ing wheel.
- Corrective steering may not occur in certain
situations, such as during heavy braking .
- The camera does not recognize all lane
marker lines. Correct ive steering can only
take place on the side of the vehicle where
lane marker lines are detected.
- Other road structures or objects could poss i­
b ly be identified un intentionally as lane
marker lines. As a result, co rrective steering
may be unexpected or may not occ ur.
- The camera view can be restricted, for ex­
ample
by vehicles driving ahead or by rain,
snow, heavy spray or light shining into the
camera. This can result in active lane ass ist
not detecting the lane marker lines or de­
tect ing them incorrectly .
- Unde r certain condit ions such as r uts in the
road, a banked roadway or crosswinds, the
correct ive steer ing alone may not be enough
to keep the vehicle in the lane.
- For safety reasons, active lane assist must
not be used when there are poor road and/
or weather conditions such as slippery roads, fog, gravel, heavy rain, snow and the
potential for hydrop lan ing . Using active lane
assist u nder these condit ions may i ncrease
the risk of a crash.
99