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Certain pieces of information in the bottom part of the display are
not shown permanent ly . Informa tion is displayed on ly if you set or
change the speed set ting, change the time interval , when messages
are displayed or if the Adaptive C ruise Co ntrol is turned off for safety
reasons. •
Applies to vehicles: with Ada ptive C rui se Cont rol
Display in the speedometer
Desired speed
Fig. 16 8 Displa y in th e
s p ee do mete r
The desired speed set by the driver is displayed by a red LED .
If the desired speed was set between two lines on the speedomete r
using the
[SET I button, the two closest light emitting diodes will
come on
=> fig . 168.
T he system allows on ly speeds to be set between 20 to 95 mph (30
to 150 km/h) to be set . This speed range is faintly illuminated in the
speedometer (LED l ights).
Indi cator light s (sy mbols )
• ""c:::::> Open road : The indicator light ""c:::::> shows that ACC is active
and that no moving vehic le has been detected with in range of the
radar sensor up ahead in your lane of trave l. The set speed is main
tained.
Con tro ls and eq uip
ment
• c:::::>1n ,c:::::> Dri ving in traffi c: The indicator light c:::::>11, ,c::::, shows that a
ve hicle moving in your lane of travel has been detec ted up front in
your lane of travel. Your speed is adjusted according to the speed of
t he vehicle up front . ACC accelerates and brakes automa tically
within the system's capabilities.
• c:::::>11 "c:::::> Driver intervention prompt : The red flash ing warning
light
~11 .. .::::::, means Reque st for driver to a ssume control . You as the
driver mus t slow the vehic le with the foot b rake . The symbol
.::::::,11 .. c:::::>
tells you that the Adaptive Cruise Con trol is not able to s low the
vehic le down enough to keep a enough distance to the vehic le in
front of you. A warn ing tone wi ll also sound when the symbo l
appears . For more information about the driver intervention prompt
=> page 764.
& WARNING
Improper u se of the Adap tive Cr uise Contr ol features and inat ten
tion can lead to a crash and serious person al injury .
• Never allow t he clo sing speed between you and other vehi cle s
to be so high that the Adapt ive Cruise Control may not be able to
s lo w your vehi cle safely .
If clos ing speed is too h igh , you must
apply the brakes your self to reduce the risk of a rear-end crash .
• Alway s s ele ct a greater follo wing di stance to the veh icle up
ahead on wet ro ads than on dry road s.
• Always re ad and heed the information and WARNINGS=>
& in
" Description " on
pag e 152.
[ i ] Tips
• I f you use the accelerator to go faster than the speed of the
vehicle ahead of you, the driver intervention p rompt wil l not be
accompanied by a wa rning tone .
• I f the speed you previously set is exceeded, the indicator light in
the speedometer wi ll swi tch off .•
Vehicle care I I Technical data
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Applies to veh ic les: with Adapt ive Cruise Contro l
Display in the instrument cluster
Fig . 169 Displ ay in the
in strumen t cluster
Scroll through the avai lab le information displays by briefly tapping
the
I RESET] button at the end of the windshield wiper lever. You can
select information from the trip compu ter, navigation system* or
Adaptive Cruise Contro l.
@ Vehicle symbol
@ Dis tance
© Status
@ Veh icle sy mbol
The vehicle symbol indicates whether the system has detected an
object traveling in front.
• Vehicle outl in e: Open road, no vehicle ahead .
• Whit e vehi cle : A vehicle is detec ted ahead .
• Red vehicle: Request for driver to assume contro l.
@ Distance
Using the arrows and scale, you can detect how far it is to the
vehic le in front of you .
• Open road: No arrow appears when the vehicle is on an open
road and there is no vehicle ahead .
• Driving in traff ic: If a vehicle is detected ahead, the arrow moves
on the scale . The green area represents the d istance set . When
approaching s lowly, the arrow moves from the
gray zone to the
green zone on the scale .
• Driver intervention prompt : When approaching rapidly, the
arrow serves as an early warning signal. If the distance selected is
exceeded or possibly no t reached, the arrow
moves into the red
z one on the scale. In certain driving situations, you as the driver will
have to take action ::::,
page 764, "Driver interventio n prompt" .
© Status
• The tex t ACC OFF appears in white letters when Adaptive Cruise
Control is turned off.
• The text
ACC AVAILABL E appears in white letters when the
system is turned on but no desired speed has been set .
• The text
OVE RRIDE appears in white letters when you exceed the
desired speed by accelerating .
• The text
DISTANCE! appears in red letters when the interval to a
vehic le trave ling ahead is too short and you have to slow y our
vehic le additionally with the foot brake .
• The text messages
DISTANCE 1 to DISTANCE 4 appear in green
letters to indicate the time interval you have set and Adaptive Cruise
Control is in management mode .
• I f the driving program "standard" is replaced by "comfor t" or
"dynamic" using the MMI, the
above text message is supplemented
by an appropriate prompt, e .g.
DISTANCE 1 -dyn .. •
Adaptiv e Crui se Contro l ""' __________________________ ___;__;~-------
Applies to vehic les: w it h Ad aptive Crui se Co nt rol
System status indicator
The text messages and symbols shown in this area of the
display are not displayed permanently.
T ime in ter va ls (s uch a s c::;, __ __ c::;, }
Fig . 170 System
sta tus in dicator
The different symbols for the time intervals (distance) appear if you
change the settings:::;, fig. 170 .
Three white dots .. . appear if a setting canno t be made with the
operating lever . The following are possible reasons
• If you pull the control lever towards you to resume speed but no
requested speed was set.
• I f you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• If you push the lever up to increase (or dow n to reduce) speed
and this speed is outside the 20 to 95 mph (30 to 150 km/h) speed
range .
A CC no t ava ila bl e
The text message ACC not av aila ble appears, for examp le, if the
temperature of the brakes is excessive. Adaptive Cruise Control is
t emporarily not available . A warning tone sounds as a reminder.
Controls and equip
ment A
CC not ava ilable!
The text message ACC not availabl e! appears in the event of a
malfunction. Adaptive Cruise Control is turned off. A warning tone
sounds as a reminder . Have the system inspected by a qua lified
dea lership.
ACC s ensor bl ocked
!
The text message ACC se nsor blo cke d ! appears when the ACC
System can no longer accurately detect vehicles moving up ahead
in your lane of
travel. Adaptive Cruise Control is turned off. A
warning tone a lso sounds as a reminder.
To decide whether it is necessary to switch off the ACC (ACC sensor b locked
!) or if it is only a temporary condition (ACC Functionally
limited), the system wi ll also takes into consideration the ou tside
temperature and/or the windshield wiper operation.
The ACC sensor is dirty or b locked (e .g . leaves, snow).
The ACC sensor is located behind the area to the right of the front license p late. If the ACC sensor is dirty or b locked, c lean the area to
restore system operat ion.
ESP activ at ion
The text message ES P activ ation appears i f the E lectronic Stabiliza
tion Program (ESP} has intervened. In this case the Adaptive Cruise
Control is automatically turned off . This is accompanied by a
warning tone.
S peed
The set speed in mph (Canada km/h) always appears when saving or
changing the speed in Adaptive Cru ise Control :::;, page 156, "How is
the speed stored?" and:::;, page 156, "Changing stored speed".
A CC function alit y limited
The message ACC functionalit y lim ited appears when the ACC
System does not detect any moving vehicles up ahead in your lane
of trave l for a longer period of time. During this time, the distance
t o moving vehicles in your lane of trave l up ahead is not be ing main -~
I • •
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tained. The ACC system is not switched off, and increased attention
to the traffic situation is absolutely necessary. The following may be
reasons why the message
ACC functionality limited appears:
• The ACC sensor is dirty . The ACC system is not reacting, or is not
reacting correctly, to moving vehicles up ahead in your lane of
travel.
• There may be very light traffic on and there is nothing that marks
the side of the road (for example, guard rails, traffic signs, trees). As
soon as a moving vehicle up ahead is detected again, ACC becomes
active again and the message disappears .
The ACC sensor is located behind the area to the right of the front
license pla te . If the ACC sensor is dirty or blocked, clean the area to
restore system operation.
Parking brake !
The text message Parking brake ! appears, when the parking brake
is applied. ACC is turned off. A warning tone sounds as a reminder.
Stationary object ahead
The text messag e Stationary object ahead appears, when you want
to activate the system and there is a stationary vehicle or an object
immediately in front of you.
Gradient too steep
The text message Gradient too steep appears when the maximum
gradient for proper ACC operation has been exceeded. Adaptive
Cruise Control is turned off. A warning tone also sounds as a
reminder.
ACC off: manual control!
The text message ACC off: manual control! appears after the vehicle
has been brought to a standstill by the Adaptive Cruise Control. In
this case you must depress the brake pedal to prevent the vehicle
from rolling. A warning tone sounds as a reminder .
Selector lever position!
The text message Selector lever position! appears when the
selector lever is moved to position
N. In this position, Adaptive
Cruise Control is not available. •
Applies to vehi cles : wi th Ad aptive Cr uise Co ntro l
Driver intervention prompt
The driver intervention prompt calls on the driver to take
over the situation.
Fig. 171 Instrument
cluster: Driver inter
vention prompt
In certain situations , the braking power of the Adaptive Cruise
Control is not enough to maintain an adequate distance to the
vehicle up ahead. In these situations, the Adaptive Cruise Control
calls the driver to take action .
The
driver intervention prompt alerts you visually and audibly to
take over .
• A red vehicle is shown in the instrument cluster display
::::::,fig.171.
• The text DISTANCE! appears in the status line .
• The indicator light
.:=:,1,, ,.:=:> in the speedometer blinks red.
• A warning tone sounds.
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[ i ] Tip s
• Adaptive Cruise Contro l is switched off after pressing the foot
brake . The speed saved up this point can be resumed.
• To resume the saved speed, release the brake pedal and press
the control lever=>
page 157, "Turning Adaptive Cruise Control off
temporarily".
• If you use the accelerator to go faster than the speed of the
vehicle ahead of you , the
dr iver i nterve ntion pr ompt will not be
accompanied by a warning signal.
• If the speed you previously set is exceeded , the indica tor light in
the speedometer wi ll switch off. •
Applies to v ehi cles: with Ad aptive Crui se Co nt rol
MMI settings
Individual settings for Adaptive Cruise Control can be
selected in the MM/ .
Fig. 172 M MI Display:
A dapti ve C ruise
Co ntrol
Settings for the driving program can be adjusted indiv idu
ally to the particular user and saved in the MMI. This can
only be done with the eng ine running.
- Press the
I CAR] funct ion button.
Controls and equip
ment
Select Sy stem s* in the CAR menu.
- Select
Adaptive Crui se Control . The Adaptive C ruise
Control
menu appears.
Select
driving program .
Select the desired driv ing program .
Sett in g t he d riving p rogram
In the driving progr am menu you can adjust the characteristics of
Adaptive Cruise Contro l to your own preferences using
d yn ami c,
s ta nd ard
or comfort .
Sav ing sett ing s
Your individua l settings are automatical ly saved and assigned to the
remote control key being used (remote key storage). If the key is
given to another person, the saved settings remain as they are. •
System limitations
Applies to veh ic les : w ith Ada ptiv e Crui se Cont ro l
General information
The radar sensor has limits that the driver must know to
be able to use ACC properly.
The Adaptive Cruise Control works within limits that ar e also related
to radar sensor range and sight distance . In some situations ACC
may react unusually or late from the driver's point of view . There
fore, always be attentive to what is happening around you and always be ready to intervene, if necessary :
• when driving around curves=>
page 166
• when vehicles up front are not in line with your vehicle
=>
page 166
• when other vehic le s are changing lanes=> page 167
I • •
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Audi braking guard
App lies to vehicles: with Adaptive Cruise Contro l
Description
Audi braking guard warns you of a possible collision with
a moving vehicle up ahead.
F ig. 180 Disp lay in t he
i nstrumen t cluster
The Audi braking guard is active from a speed of approx. 20 mph
(30 km/h) and works within the system limits=>
page 165 even when
the Adaptive Cruise Control is deactivated.
A radar sensor is built into the front of the vehicle=>
page 154,
fig. 160. The system is intended to measure the distance to reflec
tive surfaces. If a measurement is not possible, the system does not respond.
When the measurement has been taken, the system can recognize a possib ly hazardous s ituation, for example, when a vehicle up
ahead in your lane of travel sudden ly brakes or when your own
vehic le is mov ing at high speed towards a much s lower vehic le up
ahead. As soon as the system senses that a possible collision with
t he vehicle up ahead can only be avoided by immediate full brake
application or by an avoidance maneuver, a warning appears.
The system has a default response time to be able to signal before a co llision occurs. This system response time is automatica lly
reduced if you acce lerate actively, for example to join a highway. Braking, transverse acceleration and the steering angle can lead to
a reduced system response time. The warning is deact
ivated if you
begin to overtake with full acceleration.
The system can make you aware of two different hazardous situa
t ions:
Distan ce
The distance warning is g iven if the system calculates that there is
not enough distance to the vehic le up ahead a period of more than
5 seconds . If the distance is less than 30 feet (9 meters) at 50 mph
(80 km/h), for example, an optical display comes on in the instru
ment cluster=> fig. 180.
If the vehicle ahead brakes sharply, Audi braking guard cannot help
you to avoid a co llision, even in the case of an immed iate response .
T ake immediate action to avoid the collision and increase the
distance to the vehicle up ahead .
Speed
If there is a much slower vehicle moving up ahead in your lane, or if
the vehic le ahead brakes sharply, the Aud i braking guard calculates
t he point from which a co llision can only be avoided by full braking
or by an avoidance maneuver. If a warning does sound, a possible
collision with the vehicle in front can only be avoided through an
evasive maneuver or by braking.
The warning is given in two stages :
• Pre-warning: A visual disp lay appears in the instrument cl uster
and a warning tone sounds.
• Acut e warning : If you do not respond to the pre -warning, the
second stage warning is given . A quick brake application helps to
direct your attention to the road and traffic situation .
Under heavy braking, the brake assistant::::>
page 154also he lps you
benefit from maximum braking efficiency. _..
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& WARNING
Inattention can cause collisions, other accidents and serious
personal injuries.
• Always pay close attention to the traffic , even when the Audi
braking guard is switched on. The Audi braking guard provides a
warning but does not brake the car for you. You must apply the
brakes yourself!
• Always keep the safe and legal distance between your vehicle
and vehicles up ahead.
• Audi braking guard works within limits and will not respond
outside the system limits, for example when approaching a
stopped vehicle or stationary obstacle (end of a traffic jam or
vehicle that has broken down in traffic ).
• Always remember that the radar sensor for the Audi brak ing
guard works within defined detection and range limits that may
prevent the proper detection 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
promptly detected or may not be detected at all.
• Always pay careful attention to the traffic situation and be
ready to intervene and be ready to take complete control when
ever necessary .
• Reflective surfaces including crash barriers or tunnel entrances
may impair the function of the radar sensor . •
Controls and equip
ment
App lies to veh ic les: with Adap tive Cru ise Contro l
Settings in the MMI
The sett ing s of the Aud i braking guard are performe d in
the MM/ .
Fig. 181 MMI -Display :
Audi braking guard
Settings regarding the system and the ear ly warn ing can be
adju sted to the respect ive u ser and saved in the MML This
can on ly be done with the engine run ning.
Switching the system on and off
- Press the I CAR ] func tion b utton .
- Se lect Systems * in the
CAR menu .
Se lect Audi braking guard . The Audi braking guard menu
appears => fig. 181.
Se lect System on to switch the system on or off t o swi tch
the system off.
Switching the early warning on and off
P res s the I CAR I functio n button .
Select Systems * in the
CAR menu .
I • •
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- Select Audi braking guard. The Audi braking guard menu
appears.
Select
Early warning on to switch the acoustic and visual
warning on or
off to switch the system off.
[ i] Tips
When handing over the keys to another person, the previous
settings are adopted if the Audi braking guard is activated
=> page 53. •
Applies to vehicles: with Adaptive Cruise Contro l
Driver's information in the instrument cluster
display
braking guard brake jolt
This message appears when the Audi braking guard applies the
brakes during a second stage (acute) warning.
braking guard off
This message appears when the system has been deactivated via
the MMI. This message also appears briefly at each beginning of a
trip if the system is switched off.
This message also appears when the system is not available
because of a malfunction or if ESP is switched to the Offroad
mode :::>
page 288. The system can no longer warn of an impending
collision. •