
Audi adaptive  cruise control  and braking  guard  89 
the  tachometer @and  is also  shown  briefly 
in the  display @¢ 
fig.  91 . 
.. You must  also  press  the  brake  peda l when 
the  vehicle  is stopped. 
Switching  adaptive  cruise  control  off 
..  Push  the  lever  away  from you  into  position 
@ until  it  clicks  into  place.  The message 
ACC off appears. 
@ Indicator  lights 
ra 1  -Adaptive  cruise  control  is  switched  on.  No 
vehicles  are detected  up ahead . The  stored 
speed  is ma intained. 
I -A  moving  vehicle is  detected  up ahead . 
The  adaptive  cruise  control  system  regulates 
the  speed  and  distance  to the  moving  vehicle 
ahead  and  acce lerates/brakes  automatical ly. 
fa) -Adaptive  cruise  control is switched  on. A 
moving  vehicle  up  ahead  was  detected.  Your 
ve hicl e  remains  stopped. 
I -When  automat ic braking  is not  able  to 
keep  enough  distance  to  a  previously detected 
moving  vehicle up ahead,  you  must  take  con
trol  and  brake¢ 
page  91,  Prompt  for  driver 
intervention. 
© Display 
If  adaptive  cruise  control  is  not shown  in the 
disp lay, you  can  call  it  up  with  the  multifunc
tion  steering  wheel  buttons ¢ 
page  23. 
Based  on  the  symbols  in the  d isplay,  you  can 
determine  if the  system  is  maintaining  a  dis
tance  to  the  vehicle  ahead  and  what  that  d is
tance  is. 
No  vehicle  -No veh icle  ahead  was  detected . 
White  vehicle -A vehicle  ahead  was  detected. 
Red vehicle  -Prompt  for  the driver  to  take  ac
tion ¢ 
page  91. 
Both arrow s on  the scale© indicate  the  dis
tance  to  the  vehicle ahead. No arrow  appears 
when  the vehicle  is on  an  open  road  and  there 
is no  object  ahead . If  an  object  is detected 
ahead,  the  arrow  moves  on  the  scale . The 
green  zone  on  the scale  shows  the  stored 
distance.  For  information  on  changing  the 
stored  distance,  refer to ¢ 
page  90 . If  the 
distance  selected  is too  close  or  may  soon  be
come  too  close,  the  arrows  move  into the red 
zone  on  the  sca le . 
A WARNING 
Improper  use  of  the  adaptive  cruise  con
trol  can  cause collisions,  other  accidents 
and  serious  personal  injur ies . 
- Pressing  the 
!SET ! button  when  driv ing  at 
speeds  below 
20 mph (30 km/h),  will  au
tomatically  accelerate  the  vehicle to 
20 
mph (30 km/h), which  is the  minimum 
speed  that can  be  set. 
(D Tips 
-If  you  switch  the ignit ion  or the  adaptive 
cruise  control  off, the  set  speed  is erased 
from  the  system  memory. 
- You  cannot  switch  the  Electronic  Stabili
zation  Control  (ESC) to  the  SPORT mode 
when  adaptive  cruise  control  is  switched 
on. 
Changing  the  speed 
Applies  to  vehicles:  with  Aud i adapt ive  crui se  control 
0 
f 
• 0 
Fig. 92 Selector  lever: changing  the  speed 
..  To  increase  o r reduce  the  speed  in incre
ments, 
tap the  lever  up  or  down. 
-0:, N 0 ± ... a) 
.. To  incr ease  o r reduce  the  speed quickly, 
hold the  lever  up  or down  until  the  red  LED 
@ reaches  the  desired  speed 
¢fig.  91. 
Following  any  changes,  the  new  stored  speed 
will  be  displayed  briefly  in the display @ 
¢fig.  91.  

90  Audi adaptive  cruise  control  and  braking  guard 
Driv ing  in stop-and-go  traff ic 
App lies  to vehicles:  with  Audi adaptive  cruise control 
The adaptive  cruise  co ntro l system  a lso  as
sis ts you  in stop- and -go traff ic. If a  previo us 
detec ted  veh icle  ahead  s tops,  yo ur vehicle  will 
brake  to  a  stop,  within  the  limits  o f the  sys 
tem . 
,,.  To  resume  driv ing  wi th adap tive  cruise  con
t ro l,  tap  the  accelerator  pe dal or 
,,.  Pu ll the  lever  toward  yo u in to  posit ion @ 
¢fig. 93. 
@ Tips 
-If  ada ptive  cruise  con trol is a ctive  an d 
you r vehicle  does  not  start  driving  as  ex
pected  after  pulling  the  lever  once,  you 
can  start  out  aga in  by tapp ing  the  accel
erato r pedal. 
- If  an  obstacle  is detected  when  yo ur ve
h icle starts  dr iv ing,  the  system  w ill 
prompt  you  to  take  over 
¢ page 91. 
Your veh icle w ill drive  more  s low ly when 
star ting . This  may  a lso  happe n in  some 
s ituation s whe n  no obstacle  is apparent . 
Interrupting  cruise  control 
Applies  to vehicles:  with  Audi adaptive  cruise  control 
Fig. 9 3 Se lecto r leve l 
Requ irement : adaptive  cruise  control  must  be 
sw itched  on. 
Overriding  crui se control 
,,.  To accelerate  ma nually, pull  the  lever  to
ward  you  into  position @and  hold  it  there . 
The  message 
ACC override appears . Or 
,,.  press  the  accelerato r peda l.  ,,. 
To  res ume  cruise  cont ro l, re lease  the  lever 
or take  your  foot  off the  accelerato r pedal. 
Canceling  cruise control  while  driving 
,,.  Move  the  lever  in to  posi tion @. The  mes 
s a ge 
ACC  standby ap pears.  Or 
,,.  press  t he  br ake  pedal. 
,,.  To res ume  the  stored  spee d, move  the  lever 
into  position @. 
Canceling  cruise  control  when  stopped 
,,. Push  the  leve r away from  yo u  into  pos it io n 
@ . Th e  message 
ACC standby appe ars. 
,,.  To  res ume  cruise  cont ro l,  press  the  brake 
pedal  an d pull  th e  lever  toward  you  into  po
sition @. 
A WARNING 
• -
Never  resume  the  stored  speed  if the 
sp eed  is too  high  for  p revailing  r oad,  traf
f ic or weat her  condit io ns . 
Setting  the  distance 
Applies to  vehicles:  with  Aud i adapt ive cru ise contro l 
Fig.  94 Se lecto r lever : setting  t he distance 
,,.  Tap the  switch  to  display  the  current  set  dis 
tance 
¢ fig. 9 4. 
,,.  To  increase  or  reduce  the  d istance  by incre 
ments,  tap  the  switch  again  to  the  left  or 
r ight.  The  d istance  between  the  two  vehicles 
w ill change  in the  instrument  cluste r dis
p lay . 
When  approac hing  a  mov ing  vehicle  up  ahead, 
the  adaptive  cruise  control  system  automati 
ca lly brakes  to  match  th at  object's  speed  and 
Ill>  

Audi adaptive  cruise control  and braking  guard  91 
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. 91 when  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 102 . 
@ 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.  95  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. 95. You w ill also  hea r an  acoustic  signal. 
- Press  the  brake  pedal  to  slow your  vehicle 
down.  

92  Audi adaptive  cruise  control  and braking  guard 
Audi  braking  guard 
Descript ion 
App lies to vehicles: with  Audi adap tive  cruise  control 
Fig.  96 Instrument  cluster:  approach warn ing 
Braking  guard  uses radar  sensors and  a video 
camera . It  also functions  within  the  limits  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 vehicle  is traveling  at  a 
high  speed and  approaching  a vehicle  up 
ahead that  is moving  more  slowly . Brak ing 
guard  does  not  react if  it  cannot  detect  the 
situation . 
The system  advises you of  various  situations: 
- The 
distance  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 collision . The indicator 
light 
I in the  display  comes on . 
- The 
approach  warning is given when  a de
tected  veh icle up ahead in your  lane  is mov 
i ng much  more  slowly  than  you  are or  if  it 
brakes sharply . When  this  warning  is given, 
it  may  only  be possible  to avoid a  collision 
by  swerving  or  braking sharply. Th e indicator 
light 
I and  indicato r in  the  display  will  warn 
you  about  the  danger¢ 
fig. 96. You will  a lso 
hear an acoustic  signal. 
If  you do not  react  fast enough  or  do  not react 
at  all  to  the  situation,  braking  guard  will inter-
ll This  is  not  ava ilable  in some  co un tri es . 
vene by  braking and the message braking 
guard  intervention 
wi ll appear. 
- If  a coll is ion  is imm inent,  the  system  wi ll 
fi rst  prov ide an 
acute  warning by briefly  and 
sharply  applying  the  brakes. 
- If  you  do not  react  to  the  acute warning, 
braking  guard  can brake with  increas ing 
force  within  the  limits  of  the  system . This 
reduces the  vehicle  speed  in the  event  of  a 
collision. 
- The system  can initiate  maximum  braking 
short ly before  a co llision
1l .  Full  deceleration 
at  high  speeds occurs  only  in vehicles with 
adaptive  cruise control  and side assist  (pre 
sense plus) . 
- If  the  braking  guard  senses that  you are  not 
braking  hard enough  when  a collision  is  im
m inent,  it  can  increase the  braking  force . 
- The pre sense functions  also engage when  a 
collision  is  imminent¢ 
page  194. 
Which  function s can  be controlled? 
You can switch  braking guard  and the  dis
tance/approach  warning  on or  off  in the  MMI 
i=> page  93,  Settings  in  the  MMI. 
A WARNING 
-
Lack  of  attention  can cause collisions,  oth-
er accidents  and serious  personal  injuries. 
The braking  guard  is an assist system  and 
cannot  prevent  a collision  by itself . The 
driver  must  always intervene.  The dr iver is 
a lways respons ible for  braking  at the  cor
rect  time. 
- Always  pay close attention  to traffic, 
even when  the  braking  guard  is switched 
on.  Be  ready to  intervene  and  be ready to 
take  complete  control  whenever  necessa
ry. Always  keep the  safe and  legal  dis
tance  between  your  veh icle and vehicles 
up ahead. 
- Braking  guard  works  within  limits  and 
will  not  respond  outside  the  system  lim
its,  for  example  when  approaching  a 
stopped  vehicle  or  stationary  obstacle  ..,.  

Audi  adaptive  cru ise  control  and  brakin g guar d  93 
(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 93. 
-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 198. 
- 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. 86 . 
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.  ..,.  

96 Audi active  lane  assist 
Activating  and  deactivating 
A ppl ies  to vehicles: with  active lan e assis t 
Fig. 97  Turn signal  leve r: Active  lane ass ist  butto n 
Fig.  98 Windshie ld: Active  lane assist  ca mera viewing 
wi ndow 
-
I 
~ Press  the c::> fig. 97  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. 98 is not  obstructed  by stickers,  de
posits  or anything  else.  For  information on 
cleaning,  refer to 
c::> page 216. 
Active  lane  assist display  in the 
instrument  cluster 
Applies to  vehicles: wit h act ive  lane assist 
Fig.  99 Display : Active  lane assist  is switc hed  on a nd is 
warning 
Fig. 100  Instrument  cl uster:  Active  lane assist  is 
switch ed  on  but  not  re ad y to  provid e wa rnin gs 
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:  .,..  

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. 99. 
Act ive lane assist  is warning  you 
that  you are about  to  leave your  lane 
Q fig. 99.  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 . 100 . 
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. 98 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 a utho 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  97 
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.  

98 Audi side  assist 
Audi  side  assist 
Lane  Change  Assistant 
Description 
App lies to  vehicles: wit h side ass ist 
Fig . 101  Sensor  detectio n ran ge 
Fig. 102  Display on  the  exterio r mirro r 
Side assist helps you  monitor  your  blind spot 
and traffic  behind  your  vehicle.  Within  the 
limits  of  the  system,  it  warns you about 
vehicles that  are coming  closer  or  that are 
traveling  with  you within  sensor range 
(D 
c:> fig . 101: if  a lane  change  is class ified  as crit
ical,  the  display @ in the  exterior  mirror 
¢fig.  102 turns  on. 
The display  in the  left  exterior  mirror  provides 
assistance when  mak ing a  lane change to  the 
left,  while  the  display  in the  right exterior  mir· 
ror  provides assistance when  making  a  lane 
change  to the  right. 
Information  stage 
As long  as you do  not  activate  the turn  signal, 
side assist 
informs you  about  vehicles  that  are 
detected  and class ified  as critical.  The display 
in the  respective  mirror  turns on,  but  is dim.  The 
display  remains  dim  intentionally  in the 
information  stage  so that  your  view  toward 
the  front  is not  disturbed. 
Warning  stage 
If you activate  the turn  signal,  side assist 
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  99. 
(D Tips 
- You can adjust  the  brightness  of  the  dis
play @c:> 
page  100. 
-Please  refer to  the  instructions  for  tow· 
ing  a trailer  located  in 
¢ page  99.