Page 89 of 306

Audi adaptive cruise control and braking guard 87
then maintains the stored distance. If the ve
hicle ahead accelerates , adaptiv e cr uis e con
trol will also accelerate up to the stored
speed.
The higher the speed, the greater the distance
in yards (meters)
Q .&. . The Distance 3 setting
is recommended .
The distances prov ided are spec ified values.
Depending on the driving situation and the
how the vehicle ahead is driving, the actual
d istance may be more or less than these tar
ge t distances.
The various symbols for the time increments
appear briefly in the information line @
¢fig. 87when you change the settings.
~-~ --- Distance 1: This setting corre
sponds to a distance of 92 feet/28 meters
when traveling at 62 mph (100 km/h), or a
time interval of 1 second .
~-- ~-- Distan ce 2: This setting corre
sponds to a distance of 118 feet/36 meters
when traveling at 62 mph (100 km/h), or a
time interval of 1.3 seconds .
~--- ~-Distance 3: This setting corre
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph (100 km/h), or a
time interval 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 interval of 2.3 seconds .
.&_ WARNING
Following other vehicles too closely in
creases the risk of co llisions and serious
personal injury.
- Setting short distances to the traffic
ahead reduces the t ime and distance
available to br ing your vehicle to a safe
stop and makes 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 .
@ Tips
-Distance 3 is set automatically each time
you switch the ignition on.
- Your standard settings are automatically
stored and assigned to the remote con
trol key being used.
Selecting the driving mode
Applies to vehicles : wit h Audi adapt ive cr uise contro l
.,. Select the desired driving mode in drive se
lect ¢
page 98.
@ Tips
Your settings are automatically stored and
assigned to the remote control key being
used.
Prompt for driver intervention
Applies to vehicles: with A ud i ada ptive cr uise contro l
Fig. 91 Ins trumen t cluster: req ues t fo r drive r inte rven
t io n
In certain situations, the system will prompt
you to take action . Thi s 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 .
T he ind icator light
I and the symbol in the
display will warn you about the s ituation
¢ fig. 91. You w ill also hea r an acoustic signal.
- Press the brake pedal to slow your vehicle
down.
Page 90 of 306

88 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
App lies to vehicles: with Audi adap tive cruise control
F ig . 92 Instr ument cluster: approach warn ing
Braking guard uses radar sensors and a video
camera . It also functions within the lim its of
the system when adapt ive cruise control is
switched off .
What can braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud
denly or if your own veh icle is traveling at a
h igh speed and approachi ng a veh icle up
ahead that is moving more slowly . Bra king
g ua rd does not react if it cannot detect th e
situ ation .
The system advises you of various situations:
- The
distan ce 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 coll is io n. The indicator
li ght
I in the display comes on .
- The
approach warning is g iven when a de
tected veh icle up ahead in yo ur lane is mov
i ng much more slowly than you are o r if it
brakes sha rply . W hen this wa rning is given,
it m ay only be poss ible to avoid a collision
b y swerving or bra ki ng sh arply . Th e indi cator
li gh t
I and indi ca to r i n the disp lay wi ll warn
yo u about the danger¢
fig. 92. You will a lso
hear a n acoustic signa l.
If you do not re act fa st enoug h or do not re act
at all to the sit uat io n, b raking guard will inte r-
ll T hi s is not av ailable in som e coun tri es.
vene by braking and the message braking
guard intervention
wi ll appear.
- If a coll is ion is imm inent, the sys tem wi ll
fi rst prov ide an
acute warning by br iefly and
sharply ap plying the brakes.
- I f you do not re act to the acu te w arning,
brak ing g uard can brake w it h increas ing
force w it h in the lim its of the system . This
red uces the vehicle speed in the event of a
co llision.
- The system can initiate maximum b rak ing
short ly before a co llision
1l . Full dece leration
at high speeds occurs only in vehicles with
adapt ive cru ise control and side assist (pre
sense plus) .
- If the brak ing g uard senses that yo u are not
brak ing hard en ough w hen a co llision is im
m inent, it can increase t he brak ing fo rce .
- The pre sense f unctions also engage whe n a
col lision is imm inent ¢
page 190 .
Which function s can be controlled?
You can switch b raking guard and the dis
tance/approach warning on or off in the M MI
i=> page 89, Settings in the MMI.
A WARNING
-
Lack of attentio n can cause collisions, oth-
er accidents and serio us pe rsonal injuries.
Th e braking gua rd is an ass ist system and
ca nnot prevent a collision by it self. T he
dr ive r m ust always intervene. The dr ive r is
a lways res ponsib le f or br ak ing at the cor
r e ct t ime.
- Always p ay clo se a ttent ion to traff ic,
even when the braking guar d is swi tched
o n. Be ready to in tervene and be ready to
take comp lete contro l whenever necessa
ry. Always keep the safe and legal dis
tance between your ve hicle and veh icles
up ahead.
- Braking guard works within limits and
w ill not respond outside t he system lim
its, for examp le w hen approachi ng a
stopped vehicle or stati onary obstacle ..,.
Page 91 of 306

Audi adaptive cru ise control and brakin g guar d 89
(end of a traffic jam or veh icle t hat has
br oken down in traffic).
- Alw ays remember that the radar sensor
for the b raking guard works only within
defined detection and ra nge limits that
may prev ent the proper det ection of oth
er ve hicles.
- The ra dar 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 rances may impair the
function of the radar sensor.
(0 Tips
- You can cance l the braking w ith increas
i ng fo rce that is initiated by the system
by braking yo urself, by accelerating no
ticeab ly or by swerving.
- Brak ing guard error messages
~ page
89.
-Keep in mind that braking guard can
brake unexpectedly. Always secure any
ca rgo or objec ts that you are transport
i ng to reduce t he risk of d amage o r in
Ju ry.
Settings in the MMI
Appl ies to vehicles: with Audi adaptive cruise co ntrol
~ Se lect: ICARlf unct ion button> ( Car )* sys
tems
contro l button > D river assi st > Audi
braking guard .
System -
Switch braking g ua rd On and Off .
When you sw itch the ignition on, the message
Audi braking guard off appears if the system
is switched off.
Early warning -The distance and approac h
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 time the settings
are
ma de.
- If you switch the ES C to spo rt mode,
braking g uard switches off a utomatica lly
~page
194.
- Switch braking guard off when you a re
loading the vehicle onto a vehicle carrier,
t rain, ship o r other type of transporta
t ion. This can prevent undesired warn
ings from the braking guard system.
Messages
App lies to vehicles : wit h Audi ada ptive c ruise contro l
ACC unavail able
ACC and braking guard: unavailable
T he system cannot detect mov ing vehicles up
ahead co rrec tly and is switched off. The sen
sors have been displaced or a re not worki ng
properly . The Audi pre sense func tions may a l
so be affected. Drive to yo ur autho rized Audi
dealer or authorized A udi se rvice facility im
med iate ly to have the malfunction corrected.
ACC: unavailable at this time. No sensor vi
sion
ACC and braking guide: unavailable at this
time . No sensor vision
Th is message appears if the senso r view is ob
structed, for examp le by leaves, snow, heavy
sp ray or d irt. C lean the sensors~
fig. 82.
ACC: unava ilabl e at this time . Inclin e too
steep
The road exceeds the max imum possible an
gle for proper adaptive cru ise control opera
tion. Adaptive cru ise con tro l is switched off .
ACC: only selector lever positions D , S or M
available
Se lect t he D/S or M selector leve r pos ition.
ACC: unavailabl e at this time . Parking brake
s et
The adaptive cr uise cont rol system switches
off automatically if the park ing b rake is set. ..,.
Page 92 of 306

90 Audi adaptive cruise control and bra king guard
ACC : Currently unavailable . Stabilizat ion
cont rol (ESC ) input .
This message appears if the Ele ct ron ic Stabili
z at ion Con trol (E SC) is wo rk ing to help st abi
li ze the vehicle. In this case, adaptive cruise
control switches
off automatically.
ACC : Please tak e over
This message appea rs whe n adapt ive cruise
control can not set the parki ng b rake . Press
the bra ke peda l to prevent the vehicle from
r olling .
•••
Three wh ite dots appear if a setting cannot be
selected with the se lector lever. For example,
this happens if adapt ive cr uise control can not
res ume dr iv ing in stop-and-go traff ic because
one of the conditions required fo r ACC to wor k
i s not present.
Door open
The adaptive c ruise contro l system cannot
switch on when a door is open.
Stationary object ahead
T his message appea rs if you wou ld like to
sw itch ad ap tive cr uise con trol on and there is
a s tat io nary veh icle o r obst acle direc tly ahead
of yo ur vehicle .
Page 93 of 306

Audi active Lane assist
Active Lane assist
Description
Applies to vehicles: with active lane assist
Active lane assist helps you keep your vehicle
in your lane.
Active lane assist detects lane marker lines
within the limits of the system using a camera in the windshield . If you are approaching a de
tected lane marker line and it appears likely
that you w ill leave the lane, the system will
warn you by means of corrective steer ing . T he
driver can over ride the cor re ct ive steer ing at
any time. If the veh icle crosses a line, the d riv
er is also warned by a light
vibration in the
steering whee l. The vibration warning must
be switched on in the MMI for this to happen.
Active lane ass ist is operable when the line
marking the lane is detected on at least one
side of the vehicle .
If the system is in active standby mode and
the turn signa l is activated before driving over
the lane marker line, the warning does not oc
cur since the system allows for intentional lane changes .
The system is designed for driv ing on free
ways and expanded highways and thus works
only at speeds of 40 mph (65 km/h) or more .
If the vehicle is also equipped with Audi adap
tive cruise control*, the corrective steering
will be more specif ic in regard to the driving
situation . In addition to the lane marker lines,
the system can a lso take into acco unt other
objects such as guard rails. If they are detect
ed in close proximity to the veh icle, Audi a c
tive lane ass ist helps prevent the vehicle from
driving too close to them . There is also pass
ing assistance. The system does not provide
any corrective steering if it detects that you
are passing another vehicle.
A WARNING
- The system warns the driver that the ve
hicle is leaving the lane us ing corrective
Audi acti ve lane a ssis t 9 1
steering. The driver is always responsible
for keeping the vehicle within the lane.
- The system can assist the driver in keep
ing the vehicle in the lane, but it does
not steer by itself. A lways keep your
hands on the steering wheel.
- Corrective steering may not occur in cer tain situat ions, such as dur ing heavy
brak ing.
- The camera does not recognize all lane
marker lines. Corrective steer ing can only
take p lace on the side of the vehicle
where lane marker lines are detected .
- Other road structures or objects cou ld
possibly be identified un intent ionally as
lane ma rker lines. As a result, cor rect ive
steer ing may be unexpected or may not
oc cur .
- The camera view can be restricted, for
examp le by vehicles driving ahead o r by
ra in, snow, heavy spray or light s hining
into the camera. This can result in a ctive
lane assist not detecting the lane marke r
lines or detect ing them inco rrectly .
- Unde r ce rtain condi tions such as ruts in
the road, a banked roadway or cross
winds, the corrective stee ring alone may
not be enough to keep the vehicle in the
lane.
- For safety reasons, active lane ass ist
must not be used when there are poor
road and/or weather condit ions such as
slippery roads, fog, gravel, heavy rain,
snow and the potent ial for hydroplaning .
Using act ive lane assist under thes e con
ditions may increase the risk of a crash.
Page 94 of 306

92 Audi active lane assist
Activating and deactivating
Appl ies to vehicles: with active lan e assis t
Fig. 93 Turn signal leve r: Active lane ass ist butto n
Fig. 94 Windshie ld: Active lane assist ca mera viewing
win dow
-
I
~ Press the c::> fig. 93 button to activate or de
activate the system. The indicator light.
or . in the instrument cluster will illumi
nate or go out.
Instrument cluster indicator light
• Ready: The indicator light shows that the
system is ready to use . The system can now
warn you if you are about to cross a known
lane marker line .
• Not ready: The indicator light shows that
the system is turned on but unable to send a
warning . This can be due to the following:
- There is no lane marker line .
- The relevant lane marker lines are not de·
tected (for example, markings in a construc
tion zone or because they are obstructed by
snow, dirt, water or backlight ing).
- The vehicle 's speed is below the speed need
ed to activate it, which is about 40 mph (65
km/h) .
- The lane is narrower than about 8 ft . (2 .5 m)
or wider than 4 .5 m .
- The curve is too sharp. - The driver's hands are not on the steering
wheel.
(D Tips
Make sure the camera's field of view
c::> fig. 94 is not obstructed by stickers, de
posits or anything else. For information on
cleaning, refer to
c::> page 211.
Active lane assist display in the
instrument cluster
Applies to vehicles: wit h active lane assist
Fig. 95 D isplay : Active lane assist is switc hed on a nd is
warning
Fig. 96 Instrument cl uster: Active lane assist is switch ·
ed o n but not r eady to p rov id e warn ings
You can call up the active lane assist display
using the buttons in the multifunction steer
ing wheel
c::> page 23.
An additional indicator appears in the Head
up Display*.
When active lane assist is switched on, the
system indicates which lines are detected by
displaying solid lines on the left and/or right
side of your vehicle: .,..
Page 95 of 306

White line(s)
Red line
(left or
right)
Gray
line(s) Act
ive lane assist is switched on
and ready to p rov ide warnings
on the side that is ind icated
Q fig. 95.
Act ive lane assist is warning you
that you are about to leave your lane
Q fig. 95. In addition, the
steering wheel vibrates slightly.
Act ive l ane assist is switched on
but is not ready to provide warn
ings
Q fig . 96 .
Mes sages in the instrument clu ster
display
When the active lane ass ist turns off automat
i cally, the i nstrument cluster ind icator goes
out and o ne of the fo llow ing messages ap
pears on the display :
Audi active lane a ssist : Currently un availa
ble . No camera view
This message appears if the camera is no lon
ger funct ional after the system has cont inous
ly failed to detec t the lane markings . This
could happe n if:
- The camera field of view
Q fig. 94 is dirty or
covered in ice. Clean the area o n the wind
shield .
- The camera field of view is fogged over. Wait
until the fog has cleared before switching
active lane assis t on .
- The system has been unable to detect the
lanes for an extended period of time due to
road cond it ions . Switch active lane ass ist
back on when the lines are more visible .
Audi active lane assist: Currently un available
A temporary ma lf u nction is preventing lane
assist from operating. Try sw itching active
lane assist on again later.
Audi active lane a ssist : Sy stem fault!
D rive to you r autho rized Aud i dea le r soon to
h ave the ma lfunction co rrec ted .
Audi active lane a ssist : Pl ea se take over
s te ering
Audi acti ve lane a ssis t 93
This message appears if yo u do not s teer the
vehicle yourself . If this is the case, active lane
ass ist does not switch off, b ut it does sw itch
to the "not ready" stat us. The system can help
you keep the ve hicle in the lane. However it is
your own responsibility to steer and control
t h e ve hicle .
Setting the steering wheel vibration
Applies to vehicles: with active lane assist
11> Select: !CAR !function button> (Car) * sys
tem s
control button > Driver assi st > Audi
active lan e assi st.
You can switch the vibrat ing war ning in t he
stee ring wheel
on o r off .
(D Tips
Your setting is a utomat ically stored and
assigned to the remo te control key being
used.
Page 96 of 306

94 Audi side assist
Audi side assist
Lane Change Assistant
Description
App lies to vehicles: wit h side ass ist
Fig . 97 Se nsor detect ion ra nge
Fig. 98 Display o n the exte rior mirror
Side assist he lps you monitor your blind spot
and traffic behind your veh icle. Within the
limits of the system, it warns you about
vehicles that are com ing closer or that are
traveling wit h you within sensor range
(D
c:> fig . 97 : if a lane change is class ified as c riti·
cal, the display@in the exterior mirror
¢ fig. 98 turns on.
The display in the left exterior mirror provides
assistance when mak ing a lane change to the
le ft, while the disp lay in the right exter ior mir·
ror p rov ides assistance when making a lane
cha nge to the righ t.
Information stage
As long as you do not activate the turn signal,
side assist
informs you about veh icles that are
detected and class ified as cr it ical. The display
in the respective mirror turns on, but is d im. T
he display remains d im intentionally in the
information stage so that your view toward
the front is not disturbed .
Warning stage
If you activate the turn signal, s ide ass ist
warns you about vehicles that are detected
and class ified as critical. The display in the re
spective mirror blinks brightly . If this hap
pens, check traffic by glancing in the rearview
mirror and over your shoulder c:>
.&. in General
information on page 95.
(D Tips
- Yo u can adjust the brightness of the dis
play @c:>
page 96.
-Please refer to the instructions for tow·
ing a trailer located in
¢ page 95 .