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Audi ada pti ve c ruise contr ol and br akin g gu ard
Audi adaptive cruise
control and braking
guard
Introduction
App lies to: veh icles with Audi adaptive cruise contro l
The adaptive cruise control system assists the
driver by regulat ing vehicle speed and helping to
maintain a set distance to the vehicle 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 veh i
cle . This helps to make driving more comfortable
on long highway stretches .
The braking gua rd system can warn you about an
impend ing collision and initiat e braking maneu
vers
¢ page 115.
Adaptive cruise control and braking guard have
technical lim itations that you must know, so
please read th is section carefully, understand
how the system works and use them properly at
all times.
General information
General information
Applies to: vehicles with Audi adaptive cruise control
Fig. 122 Fro nt o f th e ve hicle: Pos it ion of rada r sen sor
The area that contains the radar sensor
¢
fig . 122 must never be covered by st ickers or
other objects or obs tructed with dirt, insects,
snow or ice that w ill interfere w ith the adaptive
cruise control system and braking guard. For in
formation on cleaning, refer to¢
page 204 . The
same applies for any modifications made in the
front area . T
he function of the adaptive cruise control sys
tem and braking guard is limited under some
condit ions:
- Ob jects can on ly be de tected when they are
within sensor range
q page 111, fig . 125.
-The sys tem has a limited ability to de tect ob
jects that are a short distance ahead, off to the
side of your vehicle or moving into your lane .
- Some kinds of veh icles are hard to detect; for
examp le motorcycles, ve hicles w ith hig h
ground clearance or overhanging loads may be
detected when it is too late or they may not b e
detected at all.
- When driving through curves
¢ page 110 .
- Stationa ry objects q page 110 .
,&_ WARNING
-= -Always pay attention to t raffic when adaptive
cruise control is switched on and braking
g uard is active. As the driver, you are still re
sponsible for starting and for maintain ing
speed and distance to other objects . Braking
g uard is used to ass ist you . The driver must
a lways take act ion to avoid a co llision . The
driver is always respons ible for braking at the
cor rect time.
- I mproper use of adaptive cruise control can
cause collisions, other accidents and ser ious
pe rsonal injury.
- Never let the comfort and conven ience that
adapt ive cr uise control and braking g uard
offe r distract you from the need to be a lert
to traffic cond itions and the need to remain
in full control of your vehicle at all times,
- Always remember that the adapt ive cruise
control and braking guard have limits -they
will not slow the vehicle down or maintain
the set distance when you dr ive towards an
obstacle or something on or near the road
that is not moving, such as vehicles stopped
in a traff ic jam, a stalled or disab led vehicle .
If reg istered by the radar sensor, vehicles or
obstacles that a re not mov ing can trigger a
coll is ion warning and if confi rmed by the
video camera, an acute co llision wa rning.
IJ,,
109

Audi adaptive cruise control and braking guard
-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 ra in and hydroplan
ing). Using the system under these condi·
tions could result in a collision.
- Switch adaptive cruise control off tempora
rily when driving in turning lanes, on ex
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the set speed when in these situations .
- The adaptive cruis e control system will not
brake by itself if you put your foot on the ac
celerator pedal. Doing so can override the
speed and distance regu lation.
- When approaching stationary objects such
as stopped traffic, adaptive cruise control
will not respond and braking guard will have
limited function.
- The adaptive cruise control system and
braking guard do not react to people, ani
mals, objects crossing the road or oncom ing
objects.
- The function of the radar sensor can be af
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
- Never follow a vehicle so closely that you
cannot stop your vehicle safely. The adap·
t ive cruise control cannot slow or brake the
vehicle safely when you fo llow another veh i
cle too closely. Always remember that the
automatic braking function cannot bring the
vehicle to a sudden or emergency stop un
der these conditions .
- To prevent unintended operation, always
switch adaptive cruise control off when it is
not being used.
(D Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That could affect the adaptive
cruise control system and braking guard .
Have your authorized Audi dealer or author
ized Audi Service Facility check their function.
110
In curves
App lies to : vehicles wit h Audi adapt ive cruise control
Fig. 123 Example: driv ing into a curve
When driving into a curve c:::> fig . 123 and out of a
curve, the adapt ive cruise control may react to a
vehicle in the next lane and apply the brakes . You
can override or prevent the braking by pressing
the accelerator pedal briefly.
Stationary objects
Applies to: vehicles wi th Audi adaptive cruise control
Fig . 124 Examp le: object chang ing lanes and stat ionary
ob ject
The adaptive cruise control system only reacts to
objects that are moving or that the system has
already detected as moving . Fo r example, if ave
hicle @, which has already been detected by the
adaptive cruise control, turns or changes lanes
and another stationary vehicle @ is located in
front of that vehicle, the system will not react to
the sta tionary veh icle.

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Audi adaptive cruise control and braking guard
Audi adaptive cruise control
Description
Applies to: veh icles with Audi adaptive cruise control
Fig . 12 5 Detect ion ra nge
What can adaptive cruise control do?
The adaptive c ruise co ntro l works in conjunct io n
wi th a radar sensor installed in th e front of th e
ve hicl e
¢page 109, fig. 122, which is sub je ct to
d es ign ated system lim it s ¢
page 111 . Stationary
objects are disregar ded.
On ope n ro ads wi th no traffic, adapt ive cr uise
con trol wo rks like a reg ular cruise contro l sys
tem. The store d speed is m aintai ned. Whe n ap
p roaching a moving vehicle de tected u p ahead,
the adaptive cruise cont rol system automatically
slows down to match that vehicle's speed and then maintains the distance that the driver previ
ously store d. As soon as the system does not de
tect a vehicle up ahead, adaptive cru ise control
accelerates back up to the sto red speed .
Which functions can be controlled?
When you sw itch adaptive cruise cont rol on, yo u
can set the current speed as the "control speed"
¢ page 111, Switching on and off.
W hen driving , you can stop cruise contro l
¢page 113 or change the s peed ¢ page 112 at
any time.
You can a lso set the dis tance to the objec t ahead
and set t he a dapt ive cruise contro l driv ing pro
g ram
¢ page 113.
Switching on and off
Applies to: vehicles with Audi adapt ive cr uise control
Fig . 126 Selector leve r: sw itc hin g on/o ff
Fig. 12 7 Instru ment clus te r: ad apt ive cru ise co ntrol
You can set a ny speed between 20 mph and
95 mp h (30 a nd 150 km/h).
Ind icator lamps and messages in the instr ument
cluster disp lay inform yo u about the current sys
tem status and settings.
Switching adaptive crui se control on
.,.. Pull the lever towa rd yo u into position (!)
¢
fig . 126. ACC: Standby appears in the inst ru
ment cluste r display .
Setting the speed and activating regulation
.,.. To se t the curren t speed, press t he ISE TI bu tton
¢
fig. 126. The set spee d is show n in the tach
ometer @ and is also shown br iefly in the dis
play @¢
fig. 127.
Switching adaptive cruise control off
.,.. Push the leve r away fr om yo u into position @
until it cli cks into p lace. The message ACC: Off
appears. ..,..
111

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Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to: ve hicles with Audi adaptive cruise co ntro l
Fig. 132 Instrument cluste r: approach warning
Braking guard uses a radar sensor. It also func
tions within the limits of the system when adap
tive 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 g iven 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 .
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
s ible to avo id a col lision by swerving or brak ing
sharp ly. Th e indicator light . will warn you
about the danger
¢fig. 132. You will also hear
an acoustic signal.
If you do not react fast enough or do not react at
all to the situation, braking guard will intervene
by braking and the message
Braking guard: Acti
vated
will appear.
1> Th is is not ava ilab le in some coun tries.
-If a collision is imminent, the system wi ll first
provide an
acute warning by briefly and sharply
apply ing the brakes.
- If you do not react to the acute warning, brak
ing guard can brake within the limits of the sys
tem. This reduces the vehicle speed in the event
of a collision.
- At speeds under 20 mph (30 km/h), the system
can initiate a comp lete decelerat ion shortly be
fore a collision
ll.
- If the braking guard senses that you are not
braking hard enough when a collision is immi
nent, it can increase the braking force .
Which functions can be controlled?
You can switch braking guard and the distance/
approach warn ing on or
off in the radio/MM!*
¢ page 116, Settings in the radio/MM!*.
A WARNING
-
Lack of attention can cause collisions, other
accidents and ser ious personal in juries. 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 tim e.
- 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 vehicles up ahead .
- Braking guard works wit hin limits and will
not respond outside the system limits, for
examp le when approaching a stopped veh i
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 braking guard works only within defined
detection and range limits that may prevent
the proper detect ion of other vehicles.
- The radar sensor's function and range can
be reduced by rain, snow and heavy spray.
Moving vehicles up ahead may not be
,.
115

Audi adaptive cruise control and braking guard
promptly detected or may not be detected
at all.
- Reflective surfaces including crash barriers
or tunnel entrances may impair the function
oftheradarsensor.
(D Tips
-You can cancel the braking that is initiated
by the system by braking yourself, by accel
erating noticeably or by swerving.
- Braking guard error messages
c:> page 116.
- Keep in mind that braking guard can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury.
Settings in the radio/MMI*
Applies to: vehicl es w ith Audi adaptive cruise control
.,. Select : ICARI function button> Audi braking
guard .
Or
.,. Select:
~I C~A~R~I function button > Car systems*
control button > Driver assist> Audi braking
guard .
System -
Switch braking guard On and Off. When
you switch the ignition on, the message
Braking
guard: Off
appears if the system is switched off .
Early warning -The distance and approach warn
ings in the display can be switched
On/Off .
(D Tips
-Your settings are automatically stored and
assigned to the remote control key being
used at the times the settings are made
r=;,page 33.
-If you restrict the ESC, the braking guard al
so switches itself off
c:> page 18 7.
- Switch braking guard
off when you are load
ing the vehicle onto a vehicle carrier, train,
ship or other type of transportation . This
can prevent undesired warnings from the
braking guard system.
Messages
Applies to: vehicles w ith Audi adaptive cruise contro l
Braking guard: Off
116
This driver message appears if the system is
turned
off via the radio/MM I*. Otherwise, if the
system is turned
off, the information appears ev
ery time shortly after the start of the trip.
The driver message also appears if the system is
not available due to a malfunction or if the ESC is
not switched on
c:> page 187. If this is the case,
the system will not provide warnings about a possible collision.
Braking guard: Activated
This driver message appears if sharp brake pres
sure was applied due to an acute warning.
•••
Three white dots appear if a setting cannot be se
lected with the operating lever . For example, this
happens if you want to raise/lower the speed
even though there was no previously saved
speed.
ACC: Sensor blocked
This message appears if the sensor view is ob
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor
r=;, page 109,
fig. 122 .
ACC: Unavailable
The driver message appears if, for example, the
brake temperature is too high. The adaptive
cruise control is temporarily unavailable. A chime
sounds as a rem inder.
ACC: Not available
The driver message appears if there is a malfunc
tion. The adaptive cruise control turns off. A
chime sounds as a reminder. Have the system
checked by an authorized Audi dealer or author
ized Audi Service Facility.
Shift lever position!
The driver message appears if the selector lever
is shifted to the N position. The adaptive cruise
control is not available while in this position.
Stabilization control (ESC)
This message appears if the Electronic Stabiliza
tion Control (ESC) is taking action to stabilize the .,.

Audi side assist
Audi side assist
Side assist
Description
Applies to: veh icles with Audi side assist
F ig. 133 Sensor detection range
Fig . 1 34 D isp 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 c:> fig. 133 . If a lane c hange is
cl assified as c ritic al, the displ ay @ in the exter io r
m irro r
c:> fig. 134 turns on .
The display in the left exter ior mir ro r 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 .
118
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 119 .
{!) Tips
-You can adjust the brightness of the disp lay
@ i=>pagel20.
-Please refe r to the instructions for towing a
trailer located in
i=>page 119.

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 2 79.
120
Activating and deactivating
Applies to : vehicles wit h Audi side ass ist
Fig. 137 D riv er's doo r: Side ass ist butto n
.,.. Press the button c::> &. in General information
on page 119
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 Aud i side ass ist
The signal brightness can be set in the radio or
MMI* .
.,.. Select: I CAR I function button > Audi side assist.
Or
.,.. 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 . .,,.

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@ 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 Audi side 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 is pl ay :
Audi side assist unavailable: Sensors blocked
The rada r senso rs ' vision is affected. Do not cover
the area in front of the sensors with b ike wheels,
sticke rs, dirt or other ob jects . Clean the area in
front of the senso rs, if necessary
c:> page 119,
fig . 136.
Aud i side assist: Currently unavailable
Side assist cannot be switched o n tempo rar ily be
cause there is a malfunction (for exam ple, the
battery charge level may be too low).
Audi side assist: System fault!
The system cannot guarantee that it will detect
ve hicl es co rrectly and it is switched off. The sen
sors have been d isp laced or are faulty. Have the
system checked by an authorized Audi dealer or
author ized Audi Service Facility soon.
Audi side as sist: Unavailable when towing
Side assist sw itches off automatically when a fac
tory-installed trailer hitch is connected to the
e lectrical connector on the trailer. T he re is no
gua rantee the system will sw itch off when using
a retrofitted tra ile r hi tc h. Do not use s ide ass ist
when towing a trailer.
Aud i side assist
121