sensor AUDI A8 2016 User Guide

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

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.

Audi side assist
-Improper reliance on the side assist system
can cause collisions and serious personal in­
jury:
- Never rely only on side assist when chang­
ing lanes.
- Always check rear view mirrors to make
sure that it is safe to change lanes.
- Side assist cannot detect all vehicles under
all conditions- danger of accident!
- Please note that side assist indicates there
are approaching vehicles, or vehicles in your blind spot, only after your vehicle has
reached a driving speed of at least 19 mph
(30 km/h).
- In certain situations, the system may not
function or its function may be limited. For
example:
- if vehicles are approaching or being left
behind very quickly . The display may not
turn on in time .
- in poor weather conditions such as heavy
rain, snow or heavy mist .
- on very wide lanes, in tight curves or if
there is a rise in the road surface . Vehicles
in the adjacent lane may not be detected
because they are outside of the sensor
range.
(D Note
The sensors can be displaced by impacts or damage to the bumper, wheel housing and
underbody . This can affect the system . Have
your authorized Audi dealer or authorized
Audi Service Facility check their function.
(D Tips
-If the window glass in the driver's door or
front passenger's door has been tinted, the
display in the exterior mirror may be misin­
terpreted.
- For Declaration of Compliance to United
States FCC and Industry Canada regulations
c::> page 284.
104 Activating and deactivating
App
lies to : vehicles with side assist
Fig. 115 D riv er's doo r: Side ass ist butto n
.,.. Press the button c::> &. in General information
on page 103
to switch the system on/off . The
LED in the button turns on when side assist is
switched on .
Adjusting the display brightness
Applies to: vehicles wit h side assist
The brightness setting can be adjusted via the
MMI.
.,.. Select: I CAR I function button > Car systems
control button > Driver assist> Audi side as­
sist .
The display brightness adjusts automatically to
the brightness of the surroundings, both in the
information and in the warning stage . In very
dark or very bright surroundings, the display is
already set to the minimum or maximum level by
the automatic adjustment. In such cases, you may notice no change when adjusting the bright­
ness, or the change may only be noticeable once
the surroundings change.
Adjust the brightness to a level where the display
in the information stage will not disrupt your
view forward. If you change the brightness, the
display in the exterior mirror will briefly show the
brightness level in the information stage. The
brightness of the warning stage is linked to the
brightness in the information stage and is adjust­
ed along with the information stage adjustment . .,,.

@ Tips
-Side assist is not active whi le you are ma k­
i ng the ad justment .
- Your settings are automatically stored and
ass igned to the remote control key being
u sed.
Driver messages
A ppl ies to: ve hicl es w ith si de assis t
If side ass ist switches off by itself, the LED in the
button turns off and a message will appear in the
i nstr ument cluster d isp lay :
Audi side assist: Cur rently una vailable . No sen ­
sor vision
The rada r senso rs' vision is affected . Do not cover
the area in front of the senso rs with b ike wheels,
stickers, dirt o r other ob jects . Clean the area in
front of the sensors, if necessary
c:> page 103,
fig . 114.
Audi side assist: Currently unavailable
Side assist c an not be swi tched o n tempo rarily be­
cause there is a mal function (for exam ple, the
battery charge level may be too low) .
Audi side assist: System fault!
The system cannot guarantee that it w ill detec t
ve hicles co rrectly and it is swi tched off . The sen­
s ors have bee n disp laced or are fa ulty. Have the
sy stem checked by an authorized Audi de aler or
au thor ized Au di Service Facility soon.
Audi side assist: Unavailable when towing .
Side assist sw itches off automatically when a fac­
tory-installed trailer hitch is connected to the
e lectr ical connector on the trailer . Th ere is no
g ua rantee the syste m will sw itch off when usi ng
a retrofitted tra ile r hitc h. D o not use s ide assist
when towing a t railer.
Aud i side assist
105

Parking systems
Parking systems
General information
Applies to: vehicles with park ing system plus/rear view cam­
era/peripheral cameras
Depending on your vehicle 's equipment , various
parking aids will help you when parking and ma­
neuvering.
The
parking system plus with rear view camera
assists you when parking by audibly and visually
indicating objects detected
in front of and behind
the vehicle . The rear view camera shows the area
behind the vehicle in the Infotainment display.
This display assists you when you are cross or parallel parking
r:!) page 119.
The peripheral cameras assist you with parking
and maneuvering. You are aided by various cam ­
eras depending on the vehicle equipment lev­
el r:!)
page 122. In addition, you are assisted by
the functions from the sensors
c> page 119, Sen­
sors,
¢ page 121, Visual display.
A WARNING
-
- Always look for traffic and check the area
around your vehicle by looking at it directly
as well. The parking system cannot replace
the driver's attention. The driver is always
responsible for safety during parking and
for all other maneuvers.
- Please note that some surfaces, such as
clothing, are not detected by the system.
- Sensors and cameras have b lind spots in
wh ich peop le and objects cannot be detect­
ed . Be especially cautious of children and
animals.
- The sensors can be displaced by impacts or
damage to the radiator gr ille, bumper,
wheel housing and the underbody. The park­
ing systems may become impaired as a re­
sult. Have your authorized Audi dealer or
qualified workshop check their function .
- Make sure the sensors are not covered by
stickers, deposits or any other obstructions as it may impair the sensor function. For in­
formation on cleaning, refer to
I:!) page 206.
118
(D Note
- Some objects are not detected by the sys­
tem under certain circumstances:
-Objects such as barrier chains, trailer draw
bars, vertical poles or fences
- Objects above the sensors such as wall ex ­
tensions
- Objects with specific surfaces or struc ­
tures such as chain link fences or powder
snow.
- If you continue driving closer to a low-lying
object, it may disappear from the sensor
range. Note that you will no longer be
warned about this obstacle.
(D Tips
-The system may provide a warning even
though there are no obstacles in the cover­
age area in some situations, such as:
- certain road surfaces or for long grass.
- externa l ultrasonic sources e.g. from
cleaning vehicles .
- heavy rain, snow or thick vehicle exhaust .
- We recommend that you practice parking in
a traffic-free location or parking lot to be­
come familiar with the system . When doing
this, there should be good light and weath­
er conditions.
- You can change the volume and pitch of the
signals as well as the display¢
page 128.
- Please refer to the instructions for towing a
trailer
¢page 128.
-What appears in the infotainment display is
somewhat time-delayed.