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Certa in pieces of information in the bottom part of the display are not
shown permanent ly. Information is displayed only if you set or
change the speed setting, change the t ime interval, when messages
are displayed or if the Adapt ive Cruise Control is turned off for safety
reasons. •
Applies to veh icles: with Adaptiv e Cruise Contro l
Display in the speedometer
Desired speed
Fig . 137 Display in
the speedometer
Th e desired speed set by the driver is displayed by a red LED.
If the desired speed was set between two lines on the speedometer
using the
[SET) bu tton, the two closest light emitting diodes w ill
come on=> fig. 137.
The system allows only speeds to be set between 20 to 95 mph (30 t o 150 km/h) to be set. This speed range is fa int ly illumina ted in the
speedometer (LED lights).
Indicator lights (symbols)
• ""~ Open road: The indicator light""~ shows that ACC is active
and that no mov ing vehicle has been detected with in range of the
radar sensor up ahead in your lane of travel. The set speed is main
ta ined.
Con tro ls a nd e quip
m en t Vehicle
OP-eration •
~" "~ Driving in traffic:
The indicator light ~11 .. c::::., shows that a
vehicle moving in yo ur lane of travel has been detected up front in
your lane of travel. Your speed is adjusted accord ing to the speed of
the vehicle up front. ACC accelerates and brakes automatically within
the system's capabilit ies .
• ~" "~ Driver intervention prompt: The red flashing warning
light
c::::., 11 .. o::::::) means Request for driver to assume control. You as the
driver must slow the veh icle with the foot brake . T he symbol
~""o::::::)
tells you that the Adaptive Cruise Control is not able to slow the
vehicle down enough to keep a enough distance to the vehicle in front
of you. A warning tone will also sound when the symbol appears. For
more information about the driver intervention prompt=>
page 146.
& WARNING
Improper use of the Adaptive Cruise Control features and inatten
tion can lead to a crash and serious personal injury.
• Never allow the closing speed between you and other vehicles
to be so high that the Adaptive Cruise Control may not be able to
slow your vehicle safely. If closing speed is too high, you must
apply the brakes yourself to reduce the risk of a rear-end crash.
• Always select a greater following distance to the vehicle up
ahead on wet roads than on dry roads.
• Alway s read and heed the information and WARNINGS=>
& in
" Description" on
page 134.
[ i ] Tips
• If you use the accelerator to go faster than the speed of the
vehicle ahead of you, the driver intervention prompt will not be
accompanied by a warn ing to ne.
• If the speed yo u previously set is exceeded, the indica tor light in
the speedometer will switch off .•
Vehicle care Do-it-yourselt service iTechnical data
1111..__A_ d_a_ p,__ t_iv _ e_ C_r _u _ i_ s _e _ C_ o_ n_t _ r_ o _ L ___________________________________________ _
Appli es to veh icles : wi th Adap tiv e Crui se Con tro l
Display in the instrument cluster
Fig. 138 Dis pl ay in
the instrum ent clu ster
Scroll throug h the available informa tion displays by briefly tapping
the
[ RESE T] button at the end of the windshie ld wiper lever . You can
select information from the tr ip comp uter, navigation sys tem * or
Adaptive Cr uise Control.
@ Vehicle symbol
@ Dis tance
© Status
© Vehicle symbol
Th e veh icle symbol i ndi cates w het her the sys tem has de te ct ed an
object traveling in front .
• Vehicle outline : Open road, no vehicle ahead .
• White vehicle : A vehicle is detected ahead.
• Red vehicle : Request for driver to ass ume control.
® Distance
Us ing the a rrows and scale, you can det ect how far it is to the vehi cle
in front of you.
• Open road : No ar row app ears when the ve hicle is o n an o pen road
and there is no ve hicle ahead.
• Driving in t raffic : If a vehicle is detected ahead, the arrow moves
on t he sc ale. The g ree n area represents the distan ce set . When
approaching slow ly, the arrow moves from the
gray zone to the green
zone on the scale .
• Driver intervention prompt: When appro aching rapid ly, the
arrow serves as an early warn ing signa l.
If the distance selected is
excee ded or poss ibly no t reache d, t he arrow moves in to the
red zon e
on t he scale. In certain dr iving s ituations , you as the driver wi ll have
t o take action =>
page 146, "Driver in tervent io n prompt".
@ Status
• T he text ACC OFF ap pears in wh ite le tters when Ad aptive Cr uise
Control is turned off .
• T he text
ACC AVAILABLE appears in wh ite lette rs when t he
system is turned on but no desired speed has been set .
• T he text
OVERRIDE appears in white l etters when you exceed the
desired speed by accelerating .
• T he text
DISTANCE! appears in red letters when the in terva l to a
vehicle traveling ahead is too short and you have to slow your vehicle
add itionally with the foot brake .
• T he te xt messages
DISTANCE 1 to DISTANCE 4 appea r in gree n
le tte rs to indicate the time interval you have se t and Adaptive Cruise
Con trol is in management mo de.
• If the driving program "standard" is replaced by "comfort" or
"dynam ic" usin g the M MI, the above text message is supp lemen ted
by an appropriate prom pt, e .g .
DISTANCE 1 -dyn .. •
Adaptive Cruise Control IJ!II __________________________ ...:....:..;:_....;_,,!,_ ______ _
App lies to vehicl es: wi th Adaptive Cru ise Con trol
System status indicator
The text messages and symbols shown in this area of the
displ ay are not displayed permanently .
Time intervals (such as e::::, ____ e::::,)
Fig. 139 Sy stem
st atu s indicator
The d ifferent symbols for the time interva ls (distance) appear if you
change the settings~ fig . 139.
Thr ee wh ite dots .. . ap pear if a set ting c annot be made w ith the o pe r
ating lever . The following are possible reasons
• If you pull the control lever towa rds you to resume speed but no
requested speed was set .
• If you push the lever up to increase (or down to re d uce) speed
when no speed has been set previo usly .
• If yo u push the lever up to increase (o r down to red uce) spee d and
this speed is outside the 20 to 95 mph (30 to 150 km/h) speed ra nge .
ACC not available
The text message ACC not ava ilable appears, for examp le, if the
t empe ra tu re o f the brakes is excessive. Adap tive Cru ise Con trol is
temporar ily not avai lab le. A warning tone sounds as a reminder .
Controls and equip
ment Safety first
ACC not available !
Th
e text message ACC not available! appears in the event o f a
ma lfunction . Adaptive Cru ise Contro l is tur ned off .
A warn in g tone
so unds as a reminder. Have the system inspected by a q ualified dea l
ersh ip .
ACC sensor blocked !
The text message ACC sensor blocked ! appears w hen the ACC System
can no longer acc urately detect vehi cles movi ng up ahead in your lane
o f travel. Adaptive C ruise Cont rol is tu rned off. A wa rning tone a lso
so unds as a reminder .
T o decide w hethe r it is ne cess ary to switch off the ACC (ACC senso r
blocked
!) or if it is only a temporary condition (ACC Functionally
limited), the sys tem w ill also takes into considera tion the outside
temperature and/or the w indshield wiper operation .
T he ACC sensor is d irty or b locked (e .g . leaves, snow).
Th e ACC senso r is lo ca ted be hind t he a rea to the right o f th e front
license plate.
If the ACC sensor is dirty or blocked, clean the area to
restore sy stem o per ation.
ESP activation
T he text message ESP activation appears if the Electro nic St abil iz a
tion Program (ESP) has intervened. In this case the Adaptive Cruise
Con trol is au tomat ica lly tu rned off. This is accompan ied by a warn ing
tone.
Speed
The set speed in mph (Canada km/h) always appears when saving or
c hangi ng the speed in Ad aptive C ruise Cont rol~
page 138, "How is
the speed stored?" and~
page 138, "Changing stored speed" .
ACC functionality Limited
The message ACC functionality limited appears when the ACC
System does no t detec t any moving vehicles up a head in your lane of
trave l for a longer period of time. Dur ing t his time, the d istance to
movi ng ve hicles in you r lan e of tra ve l up ahead i s not being m ain-
~
Vehicle care Technical data
llffl..__A_ d_a_ p,__ t_iv _ e_ C_r _u _ i_ s _e _ C_ o_ n_t _ r_ o _ L ___________________________________________ _
tained. The ACC system is not switched off, and increased attention
to the traffic situation is absolutely necessary. The followi ng 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 yo ur la ne of travel.
• There may be very light traffic on and there is nothing that marks
the side of the road (for example , guard rai ls, traffic signs, trees). As
soon as a moving vehicle up ahead is detected aga in, ACC becomes
active again and the message disappears.
The ACC sensor is located behind the area to the right of the front
license plate.
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 so unds as a reminder.
Stationary object ahead
The text message 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 max imum
gradient for proper ACC operation has been exceeded. Adaptive
Cru ise 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 standst ill by the Adapt ive Cruise Control. In
this case you must depress the brake pedal to prevent the vehicle
from rolling . A warn ing tone sounds as a reminder.
Selector lever position I
Th e text message Selector lever position! appears when the selector
lever is moved to position
N. In th is position, Adaptive Cruise Cont rol
is not available. •
Applies to vehicles : w it h Adap tiv e Cru ise Control
Driver intervention prompt
The driver intervention prompt calls on the driver to take
over the situation.
Fig . 140 I nstrument
cluster: Driver inter·
vention prompt
In certain situations, the brak ing power of the Adaptive Cruise
Control is not enough to maintain an adequate distance to the vehicle
up ahead. In these situations, the Adaptive C ruise Control calls the
driver to take action.
The
driver intervention prompt a lerts you vis ually and aud ibly to take
over .
• A red vehicle is shown in the instrument cluster display
:::::,fig. 140.
• T he text
DISTANCE! appears in the status line.
• The indicator light
<::::>11, ,~ in the speedometer blinks red .
• A warning tone sounds.
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[I) Tips
• Adaptive Cru ise Control is sw itched off after pressing the foo t
brake . The speed saved up this poi nt can be resumed.
• T o resume the saved speed, release the brake pedal and p ress the
control lever~
page 139, "Turning Adaptive Cruise Control off
temporar ily ".
• If you use the accelerato r to go faster than the speed of the
vehicle ahead of you, the driver intervention prompt will not be
accompanied by a warning signal.
• If the speed you prev iously set is exceeded, the indicator light in
the speedometer will switch off. •
Appli es to vehi cles : w ith A dap tive Cru ise Cont rol
MMI settings
Individual settings for Adaptive Cruise Control c an be
selected in the MMI.
Settings for t he Driving program ca n be adjusted ind ividually
to the par ticu lar user and save d in the MMI. Th is can only be
done with the engi ne r unning .
- Sele ct : F unc tion b utt on
I C A R]> Systems* > adaptive
cruise control
> Driving program .
Setting the driving program
In the Driving program menu you can ad just the characteristics o f
Ad aptive Crui se Con trol to yo ur own preferences u sing Dynamic ,
Standard or Comfort .
Saving settings
Your individ ual sett ings are automatica lly saved and ass igned to the
remote con trol key being used (remote key sto rage) . If the key is
given to anothe r person, t he saved sett ings rema in as they are. •
Controls and equip
ment Safety first
System Limitations
App
lies to ve hicle s: with Adap tive C ru ise Co ntro l
General information
The radar sensor has limits that the driver must kno w to
be a ble t o use ACC proper ly.
Th e Ad apt ive Cr uise Con trol works wi thin limi ts th at a re also rela ted
to radar sensor range and sight distance. In some situations ACC may react unus ually or late from the drive r's point of view. Therefore,
always be atte ntive to what is happe ning around you and always be
ready to interve ne, if necessary:
• when driving aro und curves ~
page 148
• when ve hicles up front are not in line wit h your vehicle
~ page 148
• when other ve hicles are changing lanes~ page 148
• when other vehicles are difficult to detect~ page 149
• when ve hicles up ahe ad are not mov ing o r o bst acle s ar e in you r
trave l lane ~
page 149
& WARNING
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 .•
Vehicle care Technical data
ffl..__A_ d_a_ p,__ t_iv _ e_ C_r _u _ i_ s _e _ C_ o_ n_t _ r_ o _ L ___________________________________________ _
Applies to veh icles : with Adapt ive C ruise Contro l
When driving around curves
Entering a curve
Fig. 141 Vehicle
entering a curve
Fig. 142 Vehicle
leaving a curve
When entering a curve, the Adaptive Cruise Control may react to a
vehicle in the next lane and apply the brakes in your vehicle
::;, fig. 141. The braking action can be overridden by depressing the
accelerator pedal.
Leaving a curve
At the end of very long curves, AC C's predictive lane reading can cause
ACC to react to another vehicle in the next lane and apply the brakes
on your vehicle::;, fig. 142. The braking action can be overridden by
depressing the accelerator pedal. •
Applies to veh icles : with Adaptive Cruise Control
Vehicles offset to one side
i
----------------- .. i
Fig. 143 Vehicle trav
eling ahead outside
the detection range of
the radar sensor
Vehicles moving up ahead but offset in the lane cannot be detected
by ACC until they are in sensor range.•
Applies to veh icl es: with Adapt ive Cruis e Contro l
Lane changes by other vehicles
Fig. 144 A vehicle
changes lanes
Vehicles that cut into your lane a short distance in front of you cannot
be detected by ACC until they are in sensor range .•
1111....__A_ d_ a_,_ p_t _i_ v _e _ C_r_ u_ i_ s_ e_ C_ o_ n_ t_ r_ o_ l __________________________________________ _
The Audi braking guard is active from a speed of approx. 20 mph
(30 km/h) and works within the system limits=>
page 147 even when
the Adaptive Cruise Control is deactivated.
A radar sensor is built into the front of the vehicle=>
page 136,
fig. 129. The system is intended to measure the distance to reflective
surfaces. If a measurement is not possible, the system does not
respond.
When the measurement has been taken, the system can recognize a
possibly hazardous situation, for example, when a vehicle up ahead in
your lane of travel suddenly brakes or when your own vehicle is moving at high speed towards a much s lower vehicle up ahead . As
soon as the system senses that a possible collision w ith the 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
collision occurs. This system response time is automatically reduced
if you accelerate actively, for example to join a highway . Braking,
transverse acceleration and the steering ang le can lead to a reduced
system response time . The warning is deactivated if you begin to
overtake with full acceleration.
Th e system can make you aware of two different hazardous situa
tions:
Distance
T he distance warning is given if the system calculates that there is not
enough distance to the vehicle 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) , fo r example, an optical disp lay comes on in the inst rument
cluster=> fig. 148.
If the vehicle ahead brakes sharply, Audi braking guard cannot he lp
you to avoid a coll is ion, 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 s lower vehicle moving up ahead in your lane, or if
the vehicle a head brakes sharply, the Audi braking guard calculates
the point from which a collision can only be avo ided by full braking or
by an avo idance maneuver. If a warn ing does sound, a possible colli
sion with the vehicle in front can only be avoided through an evasive
maneuver or by braking.
The warn ing is given in two stages:
• Pre-warning : A visual display appears in the instrument cluste r
and a warning tone sounds .
• Acute warning: If you do not respond to the pre-warning, the
second stage warni ng is given . A quick brake application helps to
direct your attention to the road and traffic situation .
Under heavy braking, the brake assistant=>
page 136 also helps you
benefit from maximum braking effic iency.
& 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 braking
guard works within defined detection and range limits that may
prevent the proper detection of other vehicles. _,.,
Adaptive Cruise Control -
----------------
& WARNING (continued)
• The r adar sen sor's function and range can be reduced b y rain ,
s now and heavy spray . Moving vehicl es up ahead may not b e
p romptl y detected or may not be detected at all .
• Always pay careful attention to th e traffic situation and be
ready to intervene and be ready to take complete control when
ever necessary.
• Refle cti ve surfaces including cr ash barriers or tunnel ent rances
may impair the function of the radar sensor .•
Applies to vehicle s: wit h A dap tiv e Cru is e Contro l
Settings in the MMI
The settings of the Audi braking guard are performed in
the MMI.
- Selec t: Funct io n button I CA R]> Systems *> Audi braking
guard .
• System -the Audi braking guard system can be switched On and
Off .
• Early warning -
the acoustic warn ing and the messages can be
s witched
On and Off .
(I] Tips
When handing ove r th e keys to another per son, the p revious settings
are adopted if the Audi braking guard is activated~ page
45. •
Controls and equip
ment Safety first
A
pp lies to vehicles : w ith Ad apt ive Cr uise Cont rol
Driver's information in the instrument
cluster display
braking guard brake jolt
Th is message appears when the Audi braking guard applies the
bra kes dur ing a second st age ( acu te) warn ing.
brak ing guard off
Thi s message appea rs when t he system has bee n deactivated v ia the
MMI. This message a lso appears briefly at each beginn ing of a t rip if
t he system is swit ched off.
Th is message also appears when the system is not available because
o f a mal function or i f ESP is switched to the Offroad
mode ~ page
252 . The system can no longer warn of an impending
co llision. •
Vehicle care Technical data