120 Adapti ve crui se control
_&. WARNING
-
Following other vehicles too closely in
creases the risk of a crash and serious per
sonal injury .
- Following other vehicles too closely, par
ticu larly at higher speeds increases the
risk of coll is ions and serious personal in
jury.
- Setting short distances to the traffic
ahead reduces the time and distance
available to bring your vehicle to a safe
stop and makes it even more necessary
to pay close attention to traffic .
- Always select a speed and distance to
traffic ahead that is safe and appropriate
under the prevailing traff ic, road, weath
er and lighting conditions.
- Never rely on the distance control fea
ture of ACC a lone to prevent rear-end col
lis ions. Always be prepared to b rake and
take evasive act io n to avoid co llisions
and other ac cident situations.
- Never allow the clos ing speed between
yo u a nd other vehicles to be so h igh that
the adaptive cruise control may not be
able to slow your vehicle safe ly . If clos
ing speed is too high, yo u m ust app ly the
brakes yourself to reduce the risk of a
rear-end crash.
- Always select a greater following dis
tance to the veh icle ahead on wet roads
than on dry roads.
- Always read and heed the information
and WARNINGS
¢ &. in Description on
page 113.
(D Tips
The distance setting is reset to the factory
default
DIS TANCE 3 the next time the ig
nition is turned on.
Driver information
Displays in the instrument cluster
Applies to veh icles: w ith adaptive cruise contro l
Depending on the driving situation, driver in
formation is displayed in the instrument clus
ter .
Fig . 1 34 Overview ins tr u me nt cluster
@ Speedometer and indica to r li ght d isp lay
@ Display in the instrument cluster
@ Speedometer and indi cato r light
display
Important information concerning vehicle op
eration with adaptive cruise control is shown
in display a rea @. The desired speed you set is
i ndica ted in the speedometer (L ED lights
aro und the edge).
T he ind icator lights show whether the system
has detected a vehicle trave ling ahead .
@ Display in the in strument cluster
In display area @ information from the navi
gation system* and the tr ip computer is dis
played in addition to informat ion about adap
t ive cru ise control.
You can select among the different informa
t io n by repeated brief taps on the
I RESET I but
ton on the w indshie ld w iper lever
c::> page 25,
Operation .
Certain pieces of information in the bottom
part of the d isplay are not shown permanent
ly . Information is displayed only if you set or
change the speed setting, change the time in
te rva l, when messages are disp layed or if the
adaptive cruise contro l is turned off for safety
reasons .
Display in the speedometer
Applies to vehicles: with adaptive cruise control
Fig. 135 D isplay in t he s pee domete r
Des ired spe ed
The desired speed set by the driv er is dis
p layed by a red L ED.
If the desi red speed was set between two
lines on the speedometer using the
I SE TI but
ton, the two closest light emitting diodes will
come on <=>
fig. 135.
The system a llows only speeds to be set be
tween 20 to 95 mph (30 to 150 km/h) to be
set. This speed range is faint ly illuminated in
the speedometer (L ED lights).
Ind icator light s (symbol s)
-- Open road:
T he ind icator light _
shows that ACC is active and that no moving
veh icle has been detected with in range of
the radar sensor up ahead in your lane of
your lane of travel. Your speed is adjusted according to the speed of the vehicle up
front . ACC acce lerates and brakes automati
ca lly within the system's capab ilities .
-- Driver int ervention prompt : The
red flashing warning light- means
Request for dri ver to assum e co ntr ol. You
as the dr iver must s low the vehicle with the
f oot brake. The symbol - tells you
t h at the adaptive cruise control is not able
to slow the vehicle down enough to keep a
e nough distance to the vehicle in front of
you. A warning tone will also sound when
Ad apti ve crui se control 121
the symbol appears. For more information
about the driver intervention prompt
r::!) page 124.
_& WARNING
Improper use of the adaptive cruise con
trol features and inattent ion can lead to a
crash and serious personal injury.
- Never allow the closing speed between
you and othe r vehicles to be so high that
the adaptive cruise control may not be ab le to slow your vehicle safely . If clos
ing speed is too high, you must apply the
brakes yo urself to reduce the risk of a
rear-end crash.
- Always select a greater following d is
tance to the vehicle up ahead on wet
roads than on dry roads.
- Always read and heed the info rmation
and WARNINGS <=>
& in Description on
page 113 .
(D Tips
-If you use the accelerator to go faste r
t han t he speed of the vehicle ahead of
you , the dr iver intervention prompt will
not be accompan ied by a warn ing tone.
- If the speed you previously set is exceed
ed, the indicator light in the speedome
ter will switch off.
Display in the instrument cluster
Appl ies to vehicles: wit h adaptive cruise control
F ig. 136 D isp lay in the in strument clust er
-
Scroll through the available information dis
plays by br iefly tapp ing the
I RES ET! button at
the end of the windshield wipe r lever . You can ..,.
122 Adaptive cruise control
select information from the trip computer,
navigation system* or adaptive cruise control.
@ Vehicle symbol
@ Distance
© Status
@Vehicle symbol
The vehicle symbol indicates whether the sys
tem has detected 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 assume
control.
@ Distance
Using the arrows and scale, you can detect
how far it is to the vehicle in front of you.
- Open road: No arrow appears when the ve
hicle is on an open road and there is no vehi
cle ahead.
- Driving in traffic: If a vehicle is detected
ahead, the arrow moves on the scale. The
green area represents the distance set.
When approach ing slow ly, the arrow moves
from the
gray zone to the green zone on the
scale .
-Driver intervention prompt : When ap
proaching rap idly, the arrow serves as an
early warning signal. If the d istance select
ed is exceeded or possibly not reached, the
arrow moves into the
red zone on the scale.
In certa in driving situations, you as the driv
er w ill have to take action
c::> page 124, Driv
er intervention prompt.
@Status
- The text ACC OFF appears in white letters
when adaptive cruise control is turned off.
- The text
ACC AVAILABLE appears in wh ite
letters when the system is turned on but no
desired speed has been set.
- The text
OVERRIDE appears in white letters
when you exceed the desired speed by accel
erating. - The text
DI
STANCE! appears in red letters
when the interva l to a vehicle traveling
ahead is too short and you have to slow your
veh icle additionally with the foot brake.
- The text messages
DISTANCE 1 to DIS
TANCE
4 appear in green letters to indicate
the t ime interval you have set and adapt ive
cruise control is in management mode.
- If the driving program "standard" is re
placed by "comfort" or "dynam ic" using the
MMI , the above text message is supple
mented by an appropriate prompt, e.g.
DIS
TANCE
1 -dyn .
System status indicator
Applies to vehicles : wi th adap tive c ruise contro l
The text messages and symbols shown in this
area of the display are not displayed perma
nently.
Fig. 137 System status indicator
Time intervals (such as.::::::, ____ .::::::,)
The different symbols for the time intervals
(distance) appear if you change the settings
c::>fig. 137.
Three white dots ... appear if a setting cannot
be made w ith the operating lever. The follow
ing are possible reasons
- If you pull the cont ro l lever towards you to
resume speed but no requested speed was
set.
- If 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 down
to red uce) speed and this speed is outs ide
llll>
124 Adaptive cruise control
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 ! ap
pears when the selector lever is moved to po
sition
N . In this position, adaptive cruise con
trol is not available .
Driver intervention prompt
Applies to vehicles: with adaptive cruise co ntrol
The driver intervention prompt calls on the
driver to toke over the situation.
Fig. 138 Inst rument clus te r: Driv er in tervent ion
p romp t
In certain situations, the braking power of the
adapt ive cr uise control is not enough to main
tain an adequate distance to the vehicle up
ahead . In these situat ions, the adaptive cruise
contro l calls the dr iver to take action.
The
driver intervention prompt alerts you vis
ually and audib ly to take over.
- A red vehicle is shown in the instrument
cluster display ¢
fig. 138.
- T he text DISTANCE ! appears in the status
line .
- T he indicator light- in the speedome
ter blinks red.
- A warning tone sounds .
(D Tips
-Adaptive cruise contro l is switched off af
ter pressing the footbrake. The speed
saved up this point can be resumed.
- To resume the saved speed, release the
brake pedal and press the control lever
¢ page 118, Turning adaptive cruise
control off temporarily.
- If you use the accelerator to go faster
than the speed of the vehicle ahead of
you, the
driver intervention prompt w ill
not be accompanied by a warn ing s ign al.
- If the speed you previously set is exceed
ed, the indicator light in the speedome
ter will switch off.
MMI settings
Applies to vehicles: wit h adaptive cruise contro l
Individual settings for adaptive cruise control
can be selected in the MMI.
Settings for the Driving program can be ad
justed individually to the particular user and
saved in the MMI. This can only be done with
the engine ru nning .
• Select: Function button
I CAR !> Control but
ton
Systems * > adaptive cruise control >
Driving program . Or
.,. Select: Function b utton I CAR !> Control but
ton
Car systems* > Driver a .ssist > Adaptive
cruise control
> Driving program .
Setting the driving program
In the Driving program menu you can adjus t
the characterist ics of adaptive cruise control
to your own preferences using
Dynamic,
Standard
o r Comfort .
Saving settings
Your individual settings are automatically
saved and ass igned 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 .
The Audi braking guard is active from a speed
of approx. 20 mph (30 km/h) and works with
in the system limits
¢ page 125 even when
the adaptive cruise contro l is deact ivated.
A radar senso r is bui lt into the front of the ve
hicle
¢ page 114, fig. 127. The system is in
tended to measure the distance to reflect ive
surfaces. If a measurement is not possible,
the system does not respond .
When the measurement has been taken, the
system can recognize a poss ibly hazardous sit
uation, for example, when a vehicle up ahead
in your lane of travel suddenly brakes or when
your ow n ve hicle is moving at high speed to
wards a much s lowe r vehicle up ahead . As
soon as the system senses that a possible co l
l ision with the vehicle up ahead can only be
avoided by immediate full brake appl ication or
by an avoidance maneuver, a warning appears .
The system has a defau lt response time to be
ab le to sig na l befo re a col lision occu rs. This
system response time is a utomat ica lly re
d uced if you acce lerate actively, for example
to join a highway. Braking, transverse acce ler
ation and the steering ang le can lead to a re
duced system response time. The warning is
deactivated if you begin to overtake with full
acceleration.
The system can make yo u aware of two differ
ent hazardo us situations:
Distance
The distance warn ing is g iven if the sys tem
calc ulates that the re is not enough d istance
to the vehicle up ahead a period of more than 5 seconds. If the distance is less than 30 feet
(9 meters) at SO mph (80 km/h), for example,
an optical d isplay comes on in the instrument
cluster
c> fig . 146.
If the vehicle ahead brakes sharply, A udi brak
ing guard cannot help you to avoid a co llision,
even in the case of an immediate response.
Take immediate act ion to avoid the collision
and increase the distance to the vehicle up
ahead .
Adapti ve crui se control 127
Speed
If there is a much slowe r vehicle mov ing up
ahead in your lane, or if the vehicle ahead brakes sharply, the Audi brak ing guard calcu
lates the point from which a collision can only
be avoided by f ull braking or by an avo idance
maneuver . If a warning does sound, a possible
collision with the veh icle in front can only be
avo ided through an evas ive maneuver or by
braking.
The warning is given in two stages:
- Pre-warnin g: A visua l display appears in the
instrument cluster and a warning tone
sounds.
- Acute w arning : If you do not respond to the
pre-warning, the second stage warning is
given. A quick brake application helps to di
rect your attention to the road and traffic
situat ion.
Under heavy braking, the brake assistant
i=> page 114 also helps you benefit from maxi
mum brak ing eff ic iency.
_& WARNING
Inattention can cause collisions, other ac
cidents and ser ious personal inju ries.
- Always pay close attent ion to the traffic,
even when the Audi braking guard is
sw itched on. The Audi braking guard pro
vides a wa rning but does not brake the
car for you. You must app ly the brakes
yourse lf!
- Always keep the safe and lega l distance
between yo ur vehicle and vehicles up
ahead.
- Aud i brak ing g uard wor ks within lim its
and will no t respond outside the system
limits, fo r example when approach ing 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 detect ion and range limits that
may prevent the proper detection of oth
er vehicles .
128 Adapti ve crui se co ntrol
-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 all.
- Always pay careful attention to the traf
fic s ituation and be ready to intervene
and be ready to take complete control
whenever necessary.
- Reflective surfaces includ ing crash barri
ers or tunnel entrances may impair the
function of the radar sensor.
Settings in the MMI
Applies to vehicles: with adaptive cruise control
T he settings of the Audi braking guard are
performed in the MMI.
._ Select : Funct ion button ICARI > Control but
ton Systems * > Audi brak ing guard . Or
._ Select : Funct ion button
ICARI > Control but
ton Car system s* > Driver as sist> Audi
braking guard .
- System -the Audi braking guard system can
be switched
On and Off .
-Earl y warning - the acoustic warning and
the messages can be switched
On and Off .
(D) Tips
When handing over the keys to another pe rson, the prev ious settings are adopted
if the Audi braking guard is act ivated
~ page 43.
Driver's information in the instrument
cluster display
Applies to vehicles: with adaptive cruise co ntrol
braking gua rd activated
This message appears whe n the Audi braking
guard applies the b rakes during a second
stage (acute) warning .
braking gua rd off
This message appears whe n the system has
been deact ivated v ia the MMI. This message also appears briefly at each beginning of a trip
if the system is switched off.
T his message a lso appears when the system is
not availab le because of a ma lf u nct ion or if
E SC is switched to the Off road
mode ~
page 219. The system can no longer
warn of an impending coll is ion .
134 Audi side assist
but is not considered notable in the event of a
l ane change, because it is dropping back so
qu ickly. The s ignal on the outside m irror does
not light up¢.&.
in Safe ty tips on page 136.
@ Signal on outs ide mirror does not light
up
If you activate your turn signal in driving sit
uation @, the signa l st ill does not light up on
the outside mirror¢.&.
in Safe ty tips on
page 136 .
MMI settings
Applies to vehicles: with side assist
The basic brightness se tting of the signal on
t he ou tside mirror can be adjusted via the
MMI .
.. Select : Function button ICARI > Contro l but
ton
Systems* > Audi side assist . Or
.. Select : Function button
ICARI > Control but
ton
Car systems* > Driver assist > Audi side
assist.
The brightne ss of the signal light for both the
in format ional and alert stages is automatical
ly adjusted to amb ient light conditions. In ad
d ition, you can adjust the
basic brightness
sepa rately, via the brigh tness function.
Wh ile making the adjustment, the new
brightness setting is displayed briefly . The
brightness displayed is that of the informa
tional stage signal. The alert stage signal
brightness is linked to the informational stage
signal brightness.
The informational stage signal br ightness
should be adjusted so that you not ice the sig
nal illuminat ion when yo u loo k in the outside
mirror, but not when you look forward
through the windshield.
I n very dark or l ight surroundings , the auto
mat ic brightness setting adjusts signal light
brightness to maximum or minimum intensi
ty, as needed. In circumstances such as these,
you may not notice any change in the bright
ness on the outside mirror when ad justing the
basic brightness .
You may not notice the change until lighting
conditions are normal again.
(D Tips
-Side ass ist is not active when the basic
brightness is adjusted . The s ignal light
comes on briefly to help you make the
adjustment .
- Yo ur settings are automatically stored
and assigned to the remote contro l key
being used.
· General information '
App lies to vehicles : wit h side assist
Side assist has limits and canno t detect vehi
cles under all road and weather condit ions .
Please remember system limitations and nev
er rely on the system , especially when :
- driving through curves¢
page 134,
-lanes are of different widths¢ page 135.
' When driving through curves
Applies to vehicles: wit h side assist
Side assist cannot detect vehicles in curves
with a turning rad ius of less than 328 feet
(100 m).
When driving through a curve, it is poss ible
that side assi st m ay reg ister a veh icle two
lanes over, and the signal on the outside mir
ror will light up.
Lane width
Applies to vehicles: with side assist
-· Fig. 155 Lan es o f a norma l wid th a re in detect ion area
Fig . 156 Narrow lanes: Side ass ist may detect vehicles
two la nes away
Side assist's detection area is designed to cov
e r l anes of standard w idth to the left and
r ight of your travel lane, depending on wheth
er you dr ive in the center of your lane or closer
to the edge.
I f you drive in narrow lanes, s ide ass ist's de
tec tion a rea may a lso incl ude other lanes -es
pec ia lly if you tend to drive on the edge of
your lane
c:::> fig. 156 . Under these cond it ions,
ve hicles can also be detected that are two
lanes away, and side assist then could switch
between the informat ional and warn ing stage
signals.
When driving in very wide lanes, vehicles in
the adjacent lane may not be detected be
cause they are not inside the detection area.
Notes
Messages in instrument cluster display
Applies to vehicles: with side assist
If s ide ass ist t urns off automa tically, the ind i
cator l igh t on the button wi ll go ou t and you
Aud i side assist 135
will see a message in the instrument cluster
display:
Audi side assist not available: sensors
bloc ked
The side assist sensors are built into the rear
bumper on the left and r ight (not visible on
the outside)
c:::> page 129, fig . 147. To ensure
that you do not adversely affect the way side
ass ist functions, foreign objects (such as stick
ers or bicycle racks) should not be attached to
the area on the rear bumper where the sen
sors a re located . If side ass ist functions are
adverse ly affec ted, you w ill see th is message
in the instrument cluster disp lay . Remove any
th ing t hat may be blocking the sensors.
If no vehicle is detected for a longer per iod of
t ime wh ile dr iv ing, s ide ass ist w ill also switch
off automatically.
Audi s ide as sist cu rrentl y not available
If there is a temporary problem (such as the
vehicle 's battery charge be ing low), side assist
cannot be act ivated temporar ily .
Audi side assis t: sy stem fault
Have the system checked by an author ized Au
di dealer or qualified workshop.
Audi side assist not availabl e when
towing
The radar sensor's view is limited when tow
ing a tra iler. For vehicles with a factory instal
led towing hitch or a trailer hitch that was in
stalled later according to facto ry specifica
tions, s ide ass ist is automatically deact ivated
as soon as the ele ctrical connection to the
trailer's e lectrical socke t is made, and this sta
tus message appears in the instrument clus
ter display. Deactivation cannot be guaran
teed when using a retrofitted towing hitch
that was
not installed according to factory
specifications.