2016 AUDI A8 Owners Manual

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

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

Audi active lane assist
Activating and deactivating
Applies to: vehicles with active lane assist
Fig. 107 Turn sign al lever : Active lane assist button
Fig. 108 Windshiel d: Active lane assist came ra viewing
window
• Press the r=;, fig. 10 7 button to activate or deac­
tivate the system. The indicator light. or
Pit
in the instrument cluster will illuminate or go
out.
Instrument cluster indicator light
• Ready:
The ind icator light shows that the sys­
tem is ready to use. The system can now warn
you if you are about to cross a known lane marker
line.
Pit Not ready: The ind icator light shows that the
system is turned on but unable to send a warn­
ing . This can be due to the following :
- There is no lane marker line.
- The relevant lane marker lines are not detected
(for example , mark ings in a construct ion zone
o r because they are obstructed by snow, dirt,
water or backlighting).
- T he vehicle's speed is below the speed needed
to activate it , which is about 40 mph (65 km/
h).
- The lane is narrower than about 8 ft. (2.5 m) or
wide r than 15 ft (4.5 m).
100
- The curve is too sharp.
- The driver's hands are not on the steering
wheel.
{i) Tips
Make sure the camera's field of view
r=;, fig. 108 is not obstructed by stickers, de­
posits or anything else. For information on
cleaning, refer to¢
page 206.
Active lane assist display in the instrument
cluster
Appl ies to : vehicles with active lane assist
Fig. 109 Disp lay : Activ e lane ass ist is switc hed on a nd is
warn ing
Fig. 110 Instrument cl uste r: Active lane as sis t is sw itched
on but hot ready to provide warnings
You can call up the active lane assist display us­
i ng the buttons in the multifu nction steering
wheel
r=;, page 23.
When active lane assist is switched on, the sys ­
tem indicates which lines are detected by display­
i ng solid lines on the left and/or right side of
your vehicle:

White Active lane ass ist is sw itched on
line(s) and ready to prov ide warnings on
t he side that i s indic ated
¢fig . 109.
Red line Active lane ass ist is war ning yo u
(lef t or that you are about to leave yo ur
r igh t) lane¢
fig. 109 . In add ition, the
st eer ing w hee l vib ra tes slightly .
G ray line(s) Active lane ass ist is switched on
but is not ready to p rovide wa rn-
i n gs
¢ fig. 110.
Messages in the instrument cluster display
When the active lane ass ist t urns of f automat i­
cally, the instrument cluster ind icator goes out
and one of t he follow ing messages appears on
the disp lay:
Audi active lane assist : Currently unavailable .
No camera view
This message appears if the camera is no longer
f u nctiona l after the system has continuously
fa iled to detect the lane mar kings . This could
h appen if :
- Th e came ra field of view ¢
page 100, fig. 108 is
dirty o r cove red in ice . C lea n the area on the
wi ndshield.
- The came ra field of v iew is fo gged over . Wait
u nti l the fog has cleared before sw itching ac­
t ive lane assist on.
- The system has been unab le to detect the lanes
f or an extended pe riod of time due to road con­
ditions. Sw itch act ive lane assist bac k on when
the lines are mo re visible .
Audi active lane assist: Currently unavailable
A tempo rary m alfu nc tion is prevent ing lane as­
sis t from operat ing . Try switching ac tive lane as ­
sist on aga in later.
Audi active lane assist: System fault!
Dr ive to yo ur autho rized Aud i dea le r soon to have
the ma lf u nction co rrected .
Audi active lane assist: Please take over steering
This message appea rs if you do not steer the ve­
hi cle yo urself . If this is the case, active lane ass ist
does not sw itch off, but it does sw itch to the "not
Audi active lane assist
r e ad y" status. The system can hel p you keep the
vehicle in the lane. However it is your own re­
spons ibility to steer and control the ve hicle .
Setting the steering wheel vibration
App lies to : vehicles wit h act ive lane assist
.,. Select: !C A R! function button > Car systems
control button > Driver assist > Audi active
lane assist.
Yo u can switch the vib rating wa rning in the stee r­
i ng wheel
on or off .
(D Tips
Your setting is a utomat ica lly stored and as­
s igned to the remote control key being used.
101

Audi side assist
Audi side assist
Side assist
Description
Applies to: veh icles with s ide assist
Fig. 111 Sensor detection range
Fig . 11 2 Disp lay on the exterio r m irror
Side assist helps you monitor your bl ind spot and
traffic behind your vehicle. Within the limits of
the system , it warns you about vehicles that are
comi ng closer o r that are traveling with you with­
in sensor range
(D <::) fig. 111 : if a lane cha nge is
cl assified as c ritic al, the displ ay @ in the exter io r
m irro r
i=>fig. 112 turns on .
The display in the left exter ior mir ror provides as­
sis tance whe n making a la ne change to the left,
while the disp lay in the rig ht exte rio r mi rror pro­
vides assis tance when mak ing a lane chan ge to
the right .
Information stage
As long as you do no t activate the turn signal,
side assis t
informs you about ve hicles tha t are
detected and class if ied as crit ic al. T he disp lay in
the respe ctive m irror turns on, but is dim .
102
The display remains dim intentionally in the in­
formation stage so that your view toward the
front is not disturbed .
Warning stage
If you activate the turn signal, side assis t warns
you about vehicles that are detected and classi­
fied as crit ica l. T he disp lay in the respective mir­
ror blinks bright ly. If this happens, check traffic
by glancing in the rearview mirror and over your
shou lder
c:> .&. in General information on
page 103 .
Applies to vehicles with active lane assist* : The
display in eac h m irror can also blink if you have
not activated the turn signa l: If you are ap­
proaching a detected lane marker line and it ap­
pears you will leave the lane, side assist will warn
you about detected veh icles that are classified as
critical.
0) Tips
- You can adjust the brightness of the disp lay
@ i=>page 104.
-Please refe r to the instructions for towing a
trailer located in
<::) page 103.