2016 AUDI A8 sensor

.... N
cluster illuminates when the high beams are
on.
- The
headlight flash er works only as long as you
hold the lever -even if there are no lights
turned on. The indicator light
& in the instru­
ment cluster illum inates when you use the
headlight flasher.
A WARNING
Do not use the high beam or headlight flasher
if you know that these could bl ind oncoming
traffic.
High beam assist
App lies to: vehicles with high beam assist
The high beam assist automatically switches the
high beams on or off, depending on the sur­
roundings and traffic conditions.
Fig. 45 Turn s ignal and h igh bea m lever : Turning on and
off the high beam assist
Activating high beam assist g
,.._ 0 ± .,. a,
Requirement:
The light switch must be in the AU­
TO pos ition, the low beam headlights must be on
and the high beam assist must be switched on in
the Infota inment ~
page 47 .
.. Press the lever forwards (Din order to activate
the high beam assist. The indicator light
II
turns on in the instrument cluster display and
the high beams switch on or off automatically.
T he ind icator light
B turns on if the high
beams were switched on.
Switching the high beams on/off manually
a Requirement: High beam ass ist is activated . J:
'SI: .... .... Lights and Vision
If the high beams did not switch on/off automat­
ica lly when expected, you may instead switch
them on/off manually:
.. To switch the high beams on manually, press
the lever forwards (D. The indicator light
II
turns on.
.. To switch the high beams off manually, pull the
lever backwards @. The high beam assist is de­
activated.
Operating the headlight flasher
.. To operate the flashers while the high beam as­
sist is active and the high beams are switched
off, pull the lever into position@. The high
beam ass ist will remain active.
Messages in the instrument cluster display
Headlight assist: System fault
Drive to your authorized Audi dealer immediate ly
to have the malfunction corrected. You can still
switch the high beams on or off manually .
Headlight assist: Unavailable . No camera view
The camera view is blocked, for example by a
sticker or debris.
The sensor is located between the interior rear­
view m irror and the windshield. Therefore, do not
place any stickers in this area on the windshield .
Service setting
There is a different sensitivity setting for servic­
ing. This setting can be activated by pressing and
ho lding the button on the interior rearview mir­
ror for more than 18 seconds. The LED next to
the button blinks three times. If you have acci­ dentally selected th is service function, the origi­
nal sens itiv ity will be automat ically restored the
next t ime you sw itch the ignition on.
A WARNING
High beam assist is only intended to assist
the driver. The driver is still responsible for
controlling the headlights and switching the
high beams on and off manua lly depending
on traffic, lighting and visibility conditions.
Fail ure to intervene manually may lead to r isk
Ill>-
49

Lights and Vision
of accident . It may be necessary to operate
the high beams manually in the following sit­
uations, e.g.:
- For adverse weather conditions such as fog,
heavy ra in, blow ing snow or spraying water.
- On roads where oncoming traffic may be
partially obscured such as expressways.
- If there are individuals on the road with no
lighting or poor light ing, s uch as cyclists.
- In tight curves and on steep slopes .
- In poorly lit areas .
- Wi th stro ng reflecto rs such as signs.
- If the area of the windsh ield near the sensor
is fogged ove r, dirty, icy or covered with a
s ticker.
(D Tips
- The high beam ass ist is active above a speed
of app rox.
25 mph (40 km/h).
- If after activation, your speed fa lls below
approx.
15 mph (24 km/h), the hig h beams
will automatically be switched off.
Interior lighting
Front and rear interior lighting
Fig. 46 Headliner : Front interior lights
Fig. 47 Rear headli ner: Read ing light
50
Press the appropriate button ~ fig. 46:
§]-Inter io r l ight ing on/off
~ -Door contact switch on/off . The inter io r li ght­
i ng is controlled automatically.
~ -Reading lights on/off
~ -Switching the rear readi ng lig hts on/off from
the cockpit .
I REAR MODEi* -Sw itch ing the rear reading lights
on/off from the co ckpit: press the I REAR MODE!
button and then the approp ria te button ~ in the
cockpit.
Ambience lighting
Applies to: vehicles with ambience lighting
You can select a color prof ile and brightness for
the ambience lighting in various areas of the ve­
hicle, called zones.
Turning ambience lighting on
.. Select in the MM I: ICAR !fu nction button> Car
sy stems
control button > Vehicle settings > In ­
terior light ing
> On .
Adjusting /turn ing off the brightness
.. Select in t he M MI: ICAR !f unc tion bu tton > Ca r
sys tems
control button > Vehicle settings > In­
terior light ing
> Brightness .
.. Turn the knob to the desired vehicle area and
press the knob. The bar that appears indicates
the selected brightness .
.. To increase or reduce the brightness, turn the
knob and press it .
Selecting a color profile*
.. Select in the MMI: ICAR ! function button > Car
systems
control button > Vehicle settings > In­
terior lighting > Color p rofile .
The ambience lighting tu rns o n when the fu nc­
tion is activated in the MMI and when you turn
the headlights on while the ignition is switched
on.

Lights and Vision
_&. WARNING
When lowering or raising the sunshade, make
sure there is nothing in its way and that it has
a free path to travel. This could cause person­
al injury .
{!) Tips
-Pressing the button Ii.!.) several times con­
secutively can trigger the overload protec ­
tion . The sun shade can only be extended/
retracted again after a brief wa iting period .
- The rear window sun shade only functions
when the vehicle interior is warmer than
14°F (-10°C).
Vanity mirror in the rear
Applies to: vehicles with vanity mirrors in the rear
Fig. 54 Rear he ad lin er : vanity mirro r
• Press the button to fold the m irror open. The
mirror lighting turns on automat ically .
a, N
i
• To change the mirror's ang le, move it forward/
bac k with your hand .
Windshield wipers
Switching the windshield wipers on
Fig. 55 Windshield wip er le v er
54
Move the windshield wiper lever to the corre­
sponding position:
@ -Windshield wipers off
(D -Rain sensor mode . The windshield w ipers
switch on once the vehicle speed exceeds approx­
i mately 2 mph (4 km/h) and it is raining. The
higher the rain sensor sensit iv ity is set (switch @
to the right) , the earlier the windshield wipers re­
act to moisture on the windshield . You can deac­
t ivate rain sensor mode in the MMI, which will
then activate intermittent mode . Select:
!CAR I
function button > Car systems control button >
Driver assist> Rain sensor> Off. In intermitten t
mode, you can adjust the interval time using the
switch @.
@ -Slow wiping
@-Fast wiping
@-Single wipe. If you hold the lever in this posi­
tion longer, the wipers switch from slow wiping
to fast wiping.
® -C lean the windshield . The wipers wipe one
time after several seconds of driving to remove
water droplets . Yo u can sw itch this function off
by moving the lever to position ® within 10 sec­
onds after the afterwipe . The afterwipe function
is r eactivated the next time you switch the igni­
tion on .
Cleaning the headlights. The headlight washer
system* only functions when the headlights are
on . If you move the lev er to position ®, the
headlights and the night v ision system camera*
are washed in intervals.
_&. WARNING
-The rain sensor is on ly designed to assist
and support the dr iver . It remains entirely
the driver's responsibility to monitor out­
side weather conditions and to manually ac­
tivate the wipers as soon as rain or drizzle
reduces vis ibility through the windshield.
- The windsh ield must not be treated with
water-repellent materials. They can increase
glare under poor visibility cond itions such as
wetness, darkness, or when the sun is low

..... N
0 J:
'SI: ..... ..... on the horizon. In addition, they can cause
the windshield wipers to chatter.
- Properly functioning windshield wiper
blades are required for a clear view and safe
driving
c=> page 55, Replacing windshield
wiper blades.
- In the case of frost, check whether the
windshield wiper blades are frozen to the
windshield. Switching on the windshield
wipers can damage the wiper blades!
- Prior to using a car wash, the windshield wiper system must be switched off (lever in
position @). This helps to prevent uninten­
tional switching on and damage to the
windsh ield wiper system.
- Do not use the wipers to clear a frosted win­ dow . Using the wipers as a convenient ice
scraper will destroy the wiper blades.
@ Tips
- The windshield wipers are switched off
when the ignition is off. Activate the w ind­
sh ield wipers afte r the ignit ion is switched
back on by moving the windshield wiper lev­
er to any position.
- Worn or dirty windshield wipe r blades result
in streaking . This can affect the rain sensor
function. Check your windshield wipe r
blades regu larly .
- The washer fluid nozzles of the windshield
washer system are heated at low tempera­
tures when the ignition is on.
- When stopping temporarily, e.g. at a traffic
light, the set speed of the windshield wipers
is automatically reduced by one speed.
Cleaning windshield wiper blades
Clean the windshield wiper blades when they be­
gin to leave streaks. Use a soft cloth and glass
cleaner to clean the windshield wiper blades.
.,. Place the windshield wiper arms in the service
position. Refer to
c=> page 55.
.,. lift the wiper arm away from the front window .
Lights and Vision
A WARNING
Dirty windshield wiper blades can impair your
view. This can lead to accidents .
Replacing windshield wiper blades
Fig. 56 Remov ing w indsh ield wiper blades
Wiper service position/ Blade replacement
position
.,. Switch the ignition off and move the windshield
wiper lever to position@¢
page 54, fig. 55.
The windsh ield wipers move into the service po­
sition .
.,. To bring the wipers back into the original posi­
tion, switch the ignition on and press the wind ­
shie ld wiper lever.
You can also turn the service posit ion on or off in
the MMI:
.,. Switch the windshie ld wipers off (posit io n @
c=> page 54, fig. 55).
.,. Select: !CAR ! function button > Car systems
control button > Servicing & checks > Wiper
service position > On.
Removing the wiper blade
.,. Lift the windshie ld wiper arm up from the
w indshie ld .
.,. Press the locking knob
(D c=> fig. 56 on the wiper
b lade . Hold the wiper blade firmly .
.,. Remove the w iper blade in the direction of the
arrow.
Attaching the wiper blade
.,. Install the new wiper blade in the re tainer on
the wiper arm @until you hear it click into
p lace on the wiper arm .
.,. Place the wiper arm back on the windshield. ..,.
55

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 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