Page 97 of 290

Audi adapt ive crui se c ontrol an d bra kin g guard 95
confirmed by the video camera, an acute
collision warning.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather
(such as ice, fog, gravel, heavy rain and
hydroplan ing). Using the system under
these conditions cou ld result in a co lli
sion.
- Switch adaptive cruise control off tempo rar ily when driving in turning lanes, on
expressway exits or in cons truction
zones. This prevents the vehicle from ac celerating to the set speed when in these
situations.
- The adaptive cr uise control system wi ll
not brake by itse lf if you p ut your foot on
the accelerator pedal. Doing so can over
ride the speed and distance regulation .
- When approaching stationary objects
such as stopped traff ic, adaptive cruise
control will not respond and braking
guard w ill have limited function.
- The adaptive cruise control system and
braking guard do not react to people, an
ima ls, objects crossing the road or on
coming objects.
- The function of the radar sensor can be
affected by reflective objects such as
guard rails, the entrance to a tunnel,
heavy rain or ice.
- Never follow a ve hicle so closely that you
cannot stop your vehicle safely. The
adaptive cruise cont ro l cannot slow or
brake the veh icle safely when you follow
ano ther veh icle too closely. Alway s re
member that the automatic braking
function cannot bring the vehicle to a sudden or emergency stop under these
condit ions.
- To prevent unintended operation, always
switch ACC off when it is not being used.
(D Note
The sensor can be disp laced by impacts or
damage to the bumper, whee l housing and
underbody . That could affect the adaptive cruise control system and braking g
uard.
Have your authorized Audi dea ler o r au
thorized Audi Service Facility chec k their
funct ion.
In curves
App lies to vehicles: with A ud i ada ptive c ruise contro l
F ig . 1 04 Examp le: driv ing into a curve
When driving into a curve¢ fig. 104 and out
of a curve, the adaptive cru ise contro l may re
act to a vehicle in the next lane and app ly the
brakes. You can override or prevent the brak
ing by pressing the accelerator pedal briefly.
Stationary objects
App lies to vehicles: wit h Audi adapt ive cr uise contro l
F ig . 1 05 Examp le: objec t chang ing la ne s and station
a ry object
The adaptive cru ise control system only reacts
to objects that a re mov ing or that the system
has a lready detected as moving . For examp le,
if a ve hicl e@ , which has already been detec t
ed by the adaptive cru ise con trol , turns or
changes lanes and another stationa ry vehicle
@ is located in front of that vehicle, the sys
tem will not react to the stationary vehicle.
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96 Audi adaptive cruise control and braking guard
Audi adaptive cruise
control
Description
Applies to vehicles: with Audi adap tive cruise control
Fig. 106 Detect ion range
What can Audi adaptive cruise control do?
The adaptive cruise control works in conjunc
tion with a radar sensor installed in the front
of the vehicle
c::> fig. 103, which is subject to
des ignated system limits
c::> page 96. Station
a ry objects are disregarded.
On open roads w ith no traff ic, adaptive cruise
control works like a regu lar cruise control sys
tem. The stored speed is main tained. When
approaching a moving vehicle detected up
ahead, the adaptive cruis e control system au
tomatically s lows down to match that vehi
cle's speed and then maintains the distance
that the driver previous ly stored. As soon as
the system does not detect a vehicle up
ahead, adaptive cruise control accelerates
back up to the stored speed .
Which functions can be controlled?
When you switch adaptive cruise contro l on,
you can set the current speed as the "control
speed"
c::> page 96, Switching on and off.
When driving, you can stop cruise control
c::> page 98 or change the speed c::> page 9 7
at any time.
You can a lso set the distance to the object
ahead and set the adaptive cruise control driv
i ng program
c::>page 98.
Switching on and off
Applies to vehicles: with Audi adaptive cruise control
Fig. 107 Selector lever : sw itc hin g on/off
Fig. 108 Instrument cluster: Audi adaptive cruise con
trol
You can set any speed between 20 mph and
95 mph (30 and 150 km/h).
Indicator lamps and messages in the instru
ment cluster disp lay inform you about the cur
rent system status and settings.
Switching Audi adaptive cruise control on
.,. Pull the lever toward you into position (D
c::> fig. 107. ACC standby appears in the in
strument cluster display.
Setting the speed and activating
regulation
.,. To set the current speed, press the ISETI
button c::> fig. 4. The set speed is shown in
Page 99 of 290

Audi adaptive cruise control and braking guard 97
the tachometer @and is also shown briefly
in the display @<:::>
fig. 108.
Switching Audi adaptive cruise control off
~ Push the lever away from you into position
@ until it clicks into place. The message
ACC off appears.
@ Indicator lights
II-Adaptive cruise control is switched on. No
vehicles are detected up ahead. The stored
speed is ma intained.
I-A moving vehicle is detected up ahead .
The adaptive cruise control system regulates
the speed and distance to the moving vehicle
ahead and acce lerates/brakes automatica lly.
I -When automatic braking is not able to
keep enough distance to a previously detected
mov ing vehicle up ahead, you must take con
trol and brake
c:> page 99, Request for driver
intervention.
© Display
If adaptive cruise control is not shown in the
d isplay, you can call it up with the
I RES ET I
button c:> page 24.
Based on the symbols in the d isplay, you can
determine if the system is maintaining a dis
tance to the vehicle ahead and what that dis
tance is.
No vehicle -No vehicle ahead was detected.
White vehicle -A vehicle ahead was detected .
Red vehicle -Prompt for the driver to take ac
tion
c:> page 99.
Both arrows on the scale © indicate the dis
tance to the vehicle ahead . No ar row 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
distance. For information on changing the
stored distance, refer to
c:> page 98. If the
distance selected is too close or may soon be
come too close, the arrows move into the red
zone on the scale.
A WARNING
Improper use of the adaptive cruise con
trol can cause collisions, other accidents
and serious personal injuries.
- Pressing the
!SET ! button when driv ing at
speeds below 20 mph (30 km/h), w ill au
tomatically accelerate the vehicle to
20 mph (30 km/h), which is the mini
mum speed that can be set.
@ Tips
-If you switch the ignit ion or the adaptive
cruise control off, the set speed is erased
from the system memory.
- The electronic stab ilizat ion control
(ESC)
and the anti-slip-regulat ion (ASR) are au
tom atica lly turned on when the adaptive
cruise control is turned on. Both systems
cannot be turned off if the adaptive
cruise control is turned on .
Changing the speed
Applies to vehicles: with Aud i adapt ive c ruise control
0
f
jJ
0
Fig. 109 Selector lever: ch anging the speed
~ To increase o r reduce the speed in incre
ments,
tap the lever up or down.
-0:, N 0 ± ... a)
~ To incr ease o r reduce the speed quickly,
hold the lever up or down until the red LED
@ reaches the desired speed
c:>fig . 108 .
Following any changes, the new stored speed
will be displayed briefly in the display @
c:>fig. 108 .
Page 100 of 290

98 Audi adapti ve cruise control and bra king gu ard
Interrupting cruise control
App lies to vehicles: with Audi adaptive cruise control
Fig. 110 Selector lever
Requirement: adaptive cruise contro l must be
switched on
¢fig.110 (i).
Ove rrid ing crui se contr ol
.. To accelerate manually, press the accelera
tor pedal. The message
ACC o ver ride ap
pears .
.. To resume adaptive cruise control, remove
your foot from the gas pedal. The system re
turns again to the speed that was saved be
fore .
.. You can save a new speed at any t ime by
pressing the
I SETI button ¢ fig. 4 .
Canceling crui se control while dri ving
.. Move the lever into posit ion @. The mes
sage
ACC sta ndb y appears . Or
.. press the brake pedal.
.. To resume the stored speed, move the leve r
into position @.
&_ WARNING
Never resume the stored speed if the
speed is too high for prevailing road, traf
fic or weather cond itions.
Setting the distance
Applies to vehicles: wit h Audi adapt ive cr uise contro l
Fig. 111 Selector lever : sett ing t he d istance
.. Tap the switch to display the current set dis
tance
¢ fig. 111 .
.. To increase or reduce the distance by incre
ments, tap the switch again to the left or
r ight. The distance between the two vehicles
w ill change in the instrument cluster dis
p lay .
When approach ing a mov ing vehicle up ahead,
the adaptive cruise control system brakes to
match that object's speed and then ma inta ins
the stored dis tance. If the vehicle ahead ac
ce le rates, adaptive cruise contro l will also ac
ce lerate up to the stored speed.
T he higher the speed, the greater t he d istance
in yards (mete rs)
c:::> /1. . The Di stan ce 3 setting
is recommended .
T he distances provided are specified va lues .
Depend ing on the dr iv ing s ituation and the
how the veh icle ahead is driving, the actual
distance may be more or less than these tar
get d istances.
T he various symbo ls for the time inc reme nts
appear briefly in the information line @
¢ fig. 108 when you change the se ttings .
,:;:::::,_c:::::, ___ Distance 1 : This setting corre-
sponds to a d istance of 92 feet/28 meters
when traveling at 62 mph (100 km/h), or a
t ime interval of 1 second.
,:;:::::, __ ,:;:::::, __ Distanc e 2: This setting corre
sponds to a d istance of 118 feet/36 meters
when traveling at 62 mph (100 km/h), or a
t ime interval of 1.3 seconds .
Page 101 of 290

Audi adaptive cruise control and braking guard 99
~--- ~-Di stance 3: This setting corre
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph (100 km/h), or a
time interva l of 1.8 seconds .
~---- ~ Distance 4: This setting corre
sponds to a distance of 210 feet/64 meters
when traveling at 62 mph (100 km/h), or a
time interva l of 2.3 seconds .
A WARNING
Following other vehicles too closely in
creases the risk of collisions and serious
personal injury.
- Setting short distances to the traffic
ahead reduces the time and distance
available to br ing your vehicle to a safe
stop and ma kes it
even more necessary
to pay close attention to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe follow
ing distance for the traffic, road and
weather conditions .
¢j) Tips
- Distance 3
is set automatically each time
you switch the ignition on.
- Your standa rd settings are automatically
stored and assigned to the remote con
trol key being used.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
Depending on the se lected driv ing program
and distance, driving behavior when accelerat
ing will
vary from dynamic to comfortab le .
Setting the driving program for vehicles
without Audi drive select*
~ In the rad io/MM I*, select: I CAR ! function
button
> Adaptive cruise control > Driving
prog .
> comfort, standard or dynamic. Or
~ Select : ICARI function button > Car sys
tems *
control button > Driver assist > Adap
tive cruise control
> Driving program * >
Comfort, Standard or Dynamic. Setting the driving mode for
vehicles with
Audi drive select*
Refer to ¢ page 108.
(D Tips
Your settings are automatica lly stored and
assigned to the remote control key being
used.
Request for driver intervention
Applies to vehicles : with Audi adaptive cruise contro l
Fig. 112 Instrument d uste r: request for drive r inte r
ve ntion
In certain situations, the system will p rompt
you to take action. This could happen, for ex
amp le, if braking by the adaptive cruise con
trol system is not enough to maintain enough
distance to the vehicle ahead.
The instrument cluster will warn you about
the danger ¢
fig. 112:
-A red vehicle is pictured in the display.
- The text
DISTANCE! appears in the status
bar.
- The red indicator light
I blinks .
- In addition, a warning tone sounds .
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100 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
Applies to vehicles: with Audi adaptive cruise control
Fig. 113 Instrument cluste r: approach warn ing
Braking guard uses a radar sensor. It also
functions within the limits of the system
when adaptive cruise control is switched off .
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud
denly or if your own vehicle is traveling at a
high speed and approaching a vehicle up
ahead that is moving more slowly . Braking
guard does not react if it cannot detect the
situation.
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 avoid a collision. The indicator
light
I in the display comes on .
- The
approach warning is given when a de
tected vehicle up ahead in your lane is mov ing much more slowly than you are or if it
brakes sharply . When th is warning is given,
it may only be possib le to avoid a collision
by swerving or braking sharply . The indicator
l ight
I and indicato r in the display will warn
you about the danger
¢ fig. 113 . You will al
so hear an acoustic signal.
I f you do not react fast enoug h or do not react
at all to the situat ion , Braking guard will in-
ll This is not available in some co un tri es .
tervene by braking and the message braking
guard intervention
wi ll appear.
- If a coll is ion is imminent, the system wi ll
fi rst provide an
acute warning by briefly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking guard can brake within the lim its of
the system. This reduces the vehicle speed
in the event of a collision .
- At speeds under 20 mph (30 km/h), the sys
tem can initiate a comp lete deceleration
short ly before a co llision .
1
).
- If the braking guard senses that you are not
brak ing hard enough when a co llision is im
minent, it can increase the braking force.
Which functions can be controlled?
You can switch braking guard and the dis
tance/approach warning on or off in the radio
or MMI
¢ page 101, Settings in the radio/
MMI.
A WARNING
-Lack of attention can cause collisions, oth
er 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 dr iver is
always responsible for braking at the cor
rect time .
- Always pay close attent ion to traffic,
even when the braking guard is switched
on. Be ready to intervene and be ready to
take complete control whenever necessa
ry. Always keep the safe and legal dis
tance between your vehicle and vehicles
up ahead.
- Braking guard works within limits and
will not respond outside the system lim
its, for examp le when approaching a
stopped vehicle or stationary obstacle (end of a traffic jam or vehicle that has
broken down in t raffic).
Page 103 of 290

Audi adaptive cru ise control and brakin g guar d 101
-Always remember that the radar sensor
for the braking guard works only within
defined detection and range limits that
may prevent the proper detection of oth
er vehicles.
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not be promptly detected or may not be de
tected at al l.
- Reflective surfaces includ ing crash barr i
ers or tunnel ent ran ces may impair the
function of the radar sensor.
- You can cance l the braking that is initiat
ed by the system by braking yourself, by
accelerating noticeab ly or by swerving.
- Bra king guard error messages
<> page 101.
-Keep in mind that braking guard can
brake unexpectedly . Always secure any
ca rgo or objects that you are transport
i ng to reduce the risk of d amage or in
ju ry.
Settings in the radio/MM!
Applies to vehicles: with Audi adaptive cruise co ntrol
~ Se lect: I CARI f unction button > Car sys
tems*
control button > Driver assist > Audi
braking guard .
Or
~ Select: ICARlf unct ion button> Audi brak -
ing guard .
System -
Switch Audi braking g uard On and
Off . When you switch the ignition on, the
message
Aud i braking guard off appears if
the system is sw itched off .
Early warning -The distance and app roac h
warn ings in the display can be switched
On /
Off .
(D Tips
-Your settings are automatically stored
and ass igned to the remote control key
being used at the t imes the settings are
made. -
If you switch the ASR/ESC off, braking
guard switches off automatically
<> page 181.
- Switch braking guard off when you a re
loading the vehicle onto a vehicle carrier,
train, ship or other type of transporta
t ion. This can prevent undesired warn
ings from the braking gua rd system.
Messages
App lies to vehicles : wit h Aud i adapt ive c ruise contro l
Braking guard : Off
This driver message appears if the system is
turned off via the radio/MMI *. Otherwise, if
the system is turned off, the informat ion ap
pears every t ime shortly after the start of the
trip.
B raking guard : Activated
T h is dr iver message appears if sharp b rake
pressure was applied due to an acu te warning.
•••
Three white dots appear if a sett ing cannot be
selected w ith the operating lever. For exam
ple, this happens if you want to raise/lower
the speed even though there was no previous
ly saved speed.
ACC: Sensor blocked
This message appears if the sensor v iew is ob
structed, for examp le by leaves, snow, heavy
spray or d i rt . Clean the sensor<>
fig. 103.
ACC: not available
T he driver mess age appears if there is a mal
f un ction. The adapt ive cr uise con tro l tu rns off.
A chime sounds as a reminder . Have the sys
tem checked by an authorized Audi dea ler or
authorized Aud i Service Fac ility.
ACC : unavailable
The dr iver message appears if, for example,
t h e b ra ke tempe rat ure is too hig h. T he adap
t ive cr uise cont ro l is temporar ily u nava ilable.
A ch ime sounds as a remin der .
Shift lever position!
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102 Audi adaptive cruise control and bra king guard
The driver message appears i f the se lector lev
er is shifted to the N position. The adaptive
cr uise control is not available wh ile in this po
sition .
Stabilization control (ESC)
This message appears if the e lectronic stabili
z ation control (ES C) is taking action to stabi
lize the vehicle . Th e adaptive cru ise con trol
turns off . A chime sounds as a reminder .
Speed too low
This message appears if the current speed is
too low
to set or to maintain the desired
speed .
The speed being saved must be at least
20 mph (30 km/h) . The cruise control is
turned off for speeds lower than 12 mph
(20 km/h) . The adapt ive cruise control re
mains turned on fo r speeds above 95 mph
(1S0 km/h) (overr ide) .
It will stabi lize again at
95 mph (150 km/h) when the driver takes his
foot off of the gas pedal.
Parking brake!
The driver message appears when the park ing
brake is activated . Adaptive cru ise cont rol is
turned off . A chime sounds as a reminder.