
TPMS 
Canada  models: 
Anti-lock  bra king system  (ABS) 
defective  ,/ 
¢page  18 
Worn  brake  pads 
¢page  19 
Electromechan ica l park ing  brake 
¢ page  14 
Tire pressure  monito ring  system 
,I 
¢page  235 
Tire pressu re moni toring  sys tem 
¢page  235 
Ele ct ron ic power  co ntro l./ 
¢page  19 
Malf u nction  ind icator  La mp  (M IL) 
,I 
¢page  19 
Engine  speed  limitation 
¢page  20 
Engine  oil  leve l 
¢page  16 
Engine  oil  sensor 
¢page  20 
Request to  wa rm  eng ine  by  driv 
ing 
¢ page  20 
Battery 
¢ page  15 
T ank  sys tem 
¢page  20 
Windshield  washer  flu id leve l 
¢page  20 
Windshield  wipers 
¢page  20 
Remote  cont rol  key 
¢page  72 
Remote  cont ro l key 
¢ page  74 
Battery  in  remote  contro l key 
¢page  31 
Defective ligh t  bulb warning 
¢ page  20 
Instruments  and  ind icator  lights 
R ea r fog  light(s) 
Headlight  range  contro l 
¢page 21 
ad aptive  light * 
¢page  21 
Light-/ rain  sensor  fau lty 
¢ page  21 
Audi  a ctive  lane  as sist* 
¢ page89 
Adap tive da mpe rs* 
¢ page  21 
Tra nsmission 
¢pag e 105 
Elec tronic  steering  column  lock 
¢ page  16 
Engine start  system 
¢ page  17 
Brake  booster 
¢page  17 
Electromechanical  steer ing,  dy 
namic  stee ring* ./ 
¢page  184 
Air  su sp ensio n* 
¢page  17 
Sport  differentia l* 
¢page  21 
Rear spoiler 
¢ pag e 18 5 
Other  indicator  lights 
-------------
Turn  signa ls 
¢ pag e 21 
USA models : Cruise  contro l* 
¢ page 77 
Canada  models: Cruise  co ntro l* 
¢ page 77 
Adap tive c ruise contro l* 
¢ page  81 
Adap tive c ruise contr ol* 
¢page  81 
Adap tive cr uise contro l* 
¢ page  81 
13  

Audi  ada pti ve  c ruise  contr ol  and  br akin g gu ard 
Audi  adaptive  cruise 
control  and  braking 
guard 
Introduction 
A ppl ies  to:  ve hicles  with  Audi adaptive  cruise  co ntro l 
The adaptive  cruise  contro l system  assists  the 
driver  by regulat ing  vehicle  speed  and  helping  to 
maintain  a set  distance  to  the  vehicle  ahead, 
within  the  limits  of the  system. 
If the  system  de
tects  a  moving  vehicle  up ahead,  adaptive  cruise 
control  can  brake  and  then accelerate  your  veh i
cle.  This  helps to  make  driving  more  comfortable 
both  on long  highway  stretches  and  in stop-and
go  traffic. 
The  braking  guard  system  can  warn  you  about  an  impending  collision and  initiate  braking  maneu
vers¢ 
page 85. 
Adaptive  cruise  control  and braking  guard  have 
technical  limitations  that you  m ust  know,  so 
please  read  this section  carefully,  understand 
how  the  system  works and use them  properly  at 
all  times. 
General  information 
General  information 
App lies  to: ve hicles  with  Audi adaptive  cruise  contro l 
Fig. 86 Front  of  th e  veh icle:  sensors  and  vi deo  camera 
The  areas  that  contain the  radar  and  u ltrason ic 
sensors  and  the  video  camera¢ 
fig. 86 must  nev
er  be  covered  by stickers  o r other  objects  or  ob
structed  with  dirt,  insects,  snow  or  ice that  wi ll 
interfere  with  the  adaptive  cruise control  system 
and  braking  guard.  For  information  on cleaning,  refer  to
¢ 
page 193. The  same  applies  for  any 
modifications  made  in the  front  area. 
The function  of  the  adaptive  cru ise  control  sys
tem  and  braking  g uard  is limited  under  some 
conditions: 
- Objects  can  on ly be  de tected  when  they  are 
w ith in  sensor  range¢ 
page 81, fig. 89. 
- The  system  has  a  limited  ability  to  detect  ob
jects  that  are  a  short  d istance  ahead,  off  to  the 
side  of your  vehicle  or  mov ing  into  your  lane . 
- Some  kinds  of veh icles  are  hard  to  detect;  for 
examp le  motorcycles,  veh icles  w ith  high 
gro und  clea rance  or overhanging  loads  may  be 
detected  when  it  is too  late  o r they  may  not  be 
detected  at  all. 
-When  driving  through  curves 
¢page 80 . 
- Stat iona ry  obje cts¢ page 80. 
_& WARNING 
A lways  pay  attention  to  traff ic when  adaptive 
cruise  control  is sw itched  on  and  brak ing 
guard  is active . As the  driver,  you  are  still  re
sponsible  for  starting and  for  maintaining 
speed  and  distance  to  other  objects.  Braking 
guard  is used  to  assist  you.  The  driver  must 
always  take  act ion  to  avoid  a  collision . The 
driver  is  always  respons ible  for  braking  at  the 
cor rect  time. 
- Improper  use  of adaptive  cruise  control  can  cause  collisions,  other  accidents  and  ser ious 
pe rsonal  injury. 
- Never  let  the  comfort  and  conven ience  that 
adapt ive cr uise  control  and  braking  g ua rd 
offe r dist ract  you  from  the  need  to  be  a lert 
to  traffic  conditions  and  the  need  to  remain 
in  full  control  of your  vehicle  at  all  times, 
- Always  remember  that  the  adaptive  c ruise 
control  and  braking  gua rd  have  limits  -they 
will  not  slow  the  vehicle  down  or  maintain  the  set  distance  when  you  drive  towards  an 
obstacle  or  something  on  or  near  the  road 
that  is not  moving,  such  as vehicles  stopped 
in  a traffic  jam,  a  stalled or  disabled  vehicle. 
If  reg istered  by  the  radar sensors,  vehicles 
or  obstacles  that  are  not  moving  can  trigger 
a  collision  wa rning  and  if confirmed  by the 
video  came ra,  an  acute  co llision  wa rning. 
~ 
79  

Audi adapt ive  crui se  con trol a nd  b rakin g guar d 
-For safety  reasons,  do  not  use  adaptive 
cruise  control  when  driving  on  roads  with 
many  curves,  when  the road  surface  is in 
poor  condition  and/or  in  bad  weather  (such 
as  ice, fog,  gravel,  heavy  ra in and  hydroplan
ing).  Using  the  system  under  these  condi· 
tions  co uld  result  in a collision. 
- Switch  adaptive  cruise  control  off  tempora
rily when  driving  in turn ing  lanes,  on  ex
pressway  exits  or  in construction  zones.  Th is 
prevents  the  vehicle  from  accelerating  to 
the  set  speed  when  in these  situat ions . 
- The  adapt ive cr uise  control  system  will not 
brake  by itself  if you  put  your  foot  on  the  ac
celerator  peda l. Doing  so  can  override  the 
speed  and  distance  regu lation. 
- When  approaching  stat ionary  objects  such 
as  stopped  traffic,  adaptive  cruise  control 
will  not  respond  and  braking  guard  will  have  limited  function. 
- The  adaptive  cruise  control system  and 
braking  guard  do  not  react  to  people,  ani
mals,  objects  crossing  the road  or  oncom ing 
objects. 
- The  function  of the  radar sensors  can  be  af
fected  by  reflective objects  such  as guard 
rails,  the entrance  to  a tunnel,  heavy rain or 
ice. 
- Never  follow  a  vehicle so closely  that you 
cannot  stop your  vehicle  safely.  The adap· 
t ive cruise  control  cannot  slow  or  brake  the 
vehicle  safely  when  you  fo llow another  veh i
cle  too  close ly. Always  remember  that  the 
automatic  braking  function  ca nnot  br ing  the 
vehicle  to  a sudden  o r emergency  stop  un
der  these  conditions . 
- To  prevent  unintended  operation,  always 
switch  ACC off  when  it  is not  be ing  used . 
(D Note 
The sensors  can  be  displaced  by impacts  or 
damage  to  the  bumpe r,  whee l housing  and 
unde rbody.  That  co uld  affect  the  adaptive 
cruise  control  system  and  braking  guard . 
Have your  authorized  Audi  dealer  or  author
ized  Audi Service  Facility check  their  function. 
80 
In curves 
Applies  to:  vehicles with  A udi adaptive  cruise control 
Fig. 87  Example : dr iving  into  a curve 
When  driving  into  a  curve c:::> fig. 87 and  out  of a 
curve,  the  adapt ive  cruise  control  may  react  to an 
object  in the  neighboring  lane and  apply  the 
brakes . You can  prevent  that  by pressing  the  ac
ce lerator  pedal br iefly. 
Stationary  objects 
Applies  to:  vehicles with  Audi adaptive  cruise control 
Fig. 88 Example: object  chang ing  lanes  and stat ionary ob · 
jec t 
The  adaptive  cruise  control system  only  reacts  to 
objects  that  are  moving  or  that  the system  has 
already  detected  as moving . For  example,  it  can 
react  when  a vehicle  that  has  already  been  de· 
tected @ turns  or changes  lanes, but  adaptive 
cruise  control  does not  react  to  a  stationary  vehi
cle @.  

Audi adaptive  cruise  control  and  braking  guard 
.... N 
a:: CJ '
Description 
Applies  to:  vehicles  with  Audi adaptive  cruise  contro l 
Fig.  96 Instrument  cluster:  approach  warning 
Braking  guard  uses radar sensors and  a video 
camera.  It  also functions  within  the  limits  of  the 
system  when  adaptive  cruise control  is switched 
off. 
What  can braking  guard  do? 
When  detected  in time,  the  system  can assess 
situations  when  a vehicle  ahead brakes suddenly 
or  if your  own veh icle is traveling  at  a high  speed 
and approaching  a vehicle  up ahead  that is mov
ing  more  slowly.  Braking guard  does not  react  if 
it  cannot  detect  the  si tuat ion. 
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 . T he  indicator  light . 
in the  d isplay comes on . 
- The 
approach  warning is given when  a detected 
vehicle  up ahead  in your  lane is moving  much 
more  slowly  than  you  are or  if  it  brakes sharply. 
When  this warning  is g iven,  it  may only  be pos
s ib le to  avoid  a collision by swerving  or braking 
sharp ly.  The indicator  light. and  indicator  in 
the  display  will  warn  yo u about  the  danger 
¢ 
fig. 96.  You  will  also  hear an acoustic  signa l. 
If you do not react  fast enough  or do not  react  at 
all  to  the  situation,  braking guard  will  intervene 
by braking. 
N "'  ll This  is  not  available  in some  countries  . ...... 
-If  a collision  is  imminent, the  system  wi ll first 
provide  an 
acute  warning by briefly  and sharply 
apply ing the  brakes . 
- If  you  do not  react  to  the  acute warning,  brak
ing  guard  can  brake with  increas ing force  with
in  the  limits  of the  system.  This  reduces the  ve
hicle  speed in the  event  of  a collision. 
- The  system  can initiate  maximum  braking 
shortly  before  a collision
1 ). Full  dece leration  at 
high  speeds occurs only  in vehicles with  adap
tive  cruise control  and side assist (pre  sense  plus). 
- If  the  braking  guard  senses that  you  are  not 
braking  hard  enough when  a collision  is immi
nent,  it  can increase the  braking  force. 
- The  pre sense functions  also engage when  a 
collision  is  imm inent ¢ 
page  177. 
Which  functions  can be controlled? 
You can switch  braking  guard  and the  distance/ 
approach  warning  on or  off  in the  MMI 
¢ page 86, Settings  in the  Infotainment  sys
tem . 
A WARNING 
--
Lack  of  attention  can cause collisions,  other 
accidents  and  serious personal  injuries.  The 
braking  guard  is  an assist system  and cannot 
prevent  a collision  by itself . Th e driver  must 
always  intervene.  The driver  is always  respon
sib le for  b raking  at  the  co rrect  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  necessary. Al
ways  keep the  safe and  legal  distance  be
tween  your  vehicle  and vehicles up ahead. 
- Brak ing guard  works  with in  limits  and will 
not  respond  outside the  system  limits,  for 
example  when  approach ing a stopped  vehi
cle or  stationary  obstacle  (end of  a traffic 
jam  or vehicle  that has broken  down in traf
f ic). 
- Always  remember  that  the radar sensor for 
the  braking  guard  works  only  within defined 
~ 
85  

Audi  adaptive  cruise  control  and  braking  guard 
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. 
- Reflective  surfaces  including  crash  barriers 
or  tunnel  entrances  may  impair  the  function 
of  the  radar  sensor. 
@ Tips 
- You can  cancel  the braking  with  increasing 
force  that  is  initiated by the  system  by  brak
ing  yourself,  by accelerating  noticeably or 
by swerving . 
- Braking  guard  error  messages¢ 
page 86. 
- Keep  in mind  that  braking  guard  can  brake 
unexpectedly.  Always  secure  any  cargo  or 
objects  that  you  are  transporting  to  reduce 
the  risk  of  damage  or  injury. 
Settings  in  the  Infotainment  system 
Applies  to:  vehicles with  Audi adapt ive cruise contro l 
~ Select: the ICARI function  button > (Car)*  Sys
tems 
control  button > Driver  assistance > Audi 
braking  guard. 
System  -
Switch the braking  guard On/Off . When 
you  switch  the  ignition  on,  the  message 
Braking 
guard:  Off 
appears  if the system  is switched  off. 
Early warning  -The  distance  and  approach  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. 
- If you  restrict  or  switch  off  the  ESC, the  braking  guard  also  switches  itself  off 
¢page 181 . 
- Switch  braking  guard  off  when  you  are  load
ing  the  vehicle  onto  a  vehicle carrier,  train, 
ship  or  other  type  of  transportation. This 
can  prevent  undesired  warnings from the 
braking  guard  system. 
86 
Messages 
Applies to: vehicles with  Audi adapt ive c ru ise control 
Braking  guard:  off 
This  driver  message  appears  if  the system  is 
turned  off  via the  infotainment . Otherwise,  if  the 
system  is turned  off, the  information  appears  ev
ery  time  shortly  after  the  start  of  the  trip. 
The  driver  message  also appears  if  the system  is 
not  available  due to  a  malfunction  or if the  ESC is 
not  switched  on¢ 
page 181. If this  is  the case, 
the  system  will  not  provide  warnings  about  a 
possible  collision. 
Braking  guard:  activated 
This  driver  message  appears  if sharp  brake  pres
sure  was  applied  due  to an  acute  warning . 
ACC: Unavailable! 
ACC and  Audi  braking  guard:  not  available 
The  system cannot detect moving  vehicles  up 
ahead  correctly  and is switched  off. The  sensors 
have  been  displaced  or  are  not  working  properly. 
T he  Audi  pre  sense  funct ions  may  also  be  affect
e d.  Dr ive  to  your  authorized  Audi  dealer  or  au
thori zed  Audi  service  facility  immediately to  have 
the  malfunction  corrected. 
ACC: currently  unavailable.  No  sensor vision 
ACC and  braking  guide:  currently  unavailable. 
No sensor vision 
This  message  appears  if the  sensor  view  is obstructed,  for  example  by  leaves,  snow , heavy 
spray  or  dirt.  Clean the sensors ¢ 
page 79, 
fig. 86. 
ACC: Currently  unavailable.  Gradient  too  steep 
The  road  exceeds  the  maximum  possible  angle 
for  proper  adaptive  cruise  control  operation . 
Adaptive  cruise  control  is switched  off . 
ACC: Only available  in  D,  S or M 
Select the D/S  or M selector  lever  position. 
ACC: currently  unavailable.  Parking  brake  ap
plied  

Fuses 
Driver  side  cockpit  fuse 
assignment 
Fig . 209 Driver side  cockp it:  fuse  panel  with  plastic bracket 
Fuse panel  @ (black) 
No . Equipment 
Electromechanical  power  steering,  trailer 
1  hitch,  ionizer,  switch  strip,  seat  heating 
(rear),  electromechanical  parking  brake 
Horn,  climate  control  system,  Gateway, 
2  automatic  dimming interior  rearv iew  mir· 
ror 
4  Park ing aid,  headlight  range  adjustment 
5  Dynamic  steering,  Electron
ic Stabilization 
Control  (ESC) 
6  Headlights 
7 Adaptive  cruise control 
8  Front  passenger's  seat  sensors,  airbag 
9  Gateway 
10  Engine sound,  night  vision 
assist, garage 
door  opener  (Home  Link),  parking  aid 
11  Video  camera 
image processing 
12  Headlights 
13  Steering  column  switch  module 
14  Terminal  15  (luggage  compartment) 
250 
Fuse panel
@ (black) 
15  Terminal  15  (engine  compartment) 
16  Starter 
Fuse panel @ (brown) 
No.  Equipment 
1 Infotainment 
2  Infotainment 
3  F
ron t passenger's  seat 
5  Airbag,  Elect
ronic Stabilization  Control 
(ESC) 
6  Anti·theft  alarm  system 
7  Electromechanical  parking  brake 
8 Inter ior  lights 
9 
Windshield  video  camera  heating,  light/ 
rain  sensor 
10  Lumbar  support  (driver's  seat) 
11  Driver's  seat 
12  Electronic  stabilization control 
13  Horn 
14  Headlights 
15  Front 
seat  heating 
16  Dynamic steering 
Fuse panel © (red) 
No . Equipment 
1  Clutch  pedal 
2  Fuel  pump 
3  Brake light  sensor 
4 AdBlue  (diesel 
engine)/engine  acoustics 
5  Rear door 
6  Front 
door 
7  Electronic  stab ilizat ion control 
8 Windshield  wiper  motor 
9  Headlight  washer  system 
10  Interior 
lighting,  climate  control  system 
11  Headlights 
12  Sunroof  

Front  passenger  side 
cockpit  fuse  assignment 
F ig. 21 0 Front  passenger  side  cockpit:  f use  pane l w it h 
p las tic bracket 
Fuse panel  @ (red ) 
No . Equipment 
1  Infotainment,  CD changer 
2  I
nf otainment  (disp lay) 
Fuse panel @ (brown ) 
No . Equipment 
1  Climate  control  system 
2  Climate  cont
rol  sys tem  (blowe r) 
3 Diagnostic  interface 
4 Ele ctrical  ignit io n  lock 
5 Electronic  steering  column  lock 
6 Steer ing  col umn  sw itch  module 
7 Power  steering  column  adjustment 
8 Light  switch 
9 Head-up  display 
1 0  I
nst rument  cluste r 
1 1  Infotainment,  DVD changer 
Fuses 
Luggage  compartment 
fuse  assignment 
F ig . 2 1 1 Luggage  compa rtment:  fuse  panel  with  p last ic 
b racket 
Fuse panel @ (black ) 
No . Equipment 
1  Tra
iler  hitc h/220  volt  socket 
2  Tra ile r  hi tc h /climati zed  cup  holder 
3 
Tra iler  hitch/ad justing  front  passenger's 
seat  from  the  rear 
4 El ec tromec ha nic al  pa rking  brake 
5 Electromec hanical  parking  brake 
6 F ront  door  (front  passenger's  s ide) 
7 Rear  exterior  lighting 
8 Cen tral  locking,  closi ng  a id 
9 Seat  heating  (front) 
1 1  Seat  heating  (rear),  climate  control  system 
12  Tra ile r hitc h 
Fuse panel @ (red) 
No . Equipment 
1  L
eft  safety  belt  tensioner 
2  R igh t safety  be lt  tens ione r 
3 Ad B lue  tank  (diesel  engine)/fuel  pump 
4 Ad B lue  tank  (diesel  engine)/eng ine  mo unt 
(gaso line  e ngine) 
s 
Sensor-controlled  l uggage  compartment 
li d 
6 Air s uspension,  adaptive  dampers 
7 Rear  door  (front  passenger's  side) 
8 Tail  lights 
9 Luggage  compartmen t lid 
251 
...  

Fuses 
Fuse panel@ (red )  Fuse panel® (black) 
10 Rear  seat  enterta inment No.  Equipment 
12 
Rea r spo ile r  (Sportbac k),  t ilt/open  sun-
roof,  P anorama  glass  roof  1  Rear  window  defogge
r 
Fuse panel © (brown) 
No . Equipment 
1 Infotainment 
2 In fota inment 
3 
Infotainment , automatic  d imm ing  inter ior 
rearv iew  mir ror 
4 Rearview  camera/peripheral  cameras 
s TV t uner 
6 Tank  leak  detection  system 
7 Sockets 
8 Park ing  heater 
10 Lumb ar su ppo rt  (front  passenger 's  seat) 
12 In fotainment 
Fuse panel @ (black) 
No.  Equipment 
Air suspe nsio n,  ad aptive  dampers,  sport 
1 different ia l,  elect romech anic al  par king 
brake 
2 
Clutch  pedal  position  sensor/automa tic 
t ransmission 
3 Seats 
4 Rea r wiper  (Avant) 
5 Side  assist 
6 Engine  sound 
7 In fota inment/so und  amplif ier 
8 Ga tew ay 
9 Sport  differential 
1 0 Climate  cont rol  sys tem 
1 1 
T ire  pressure  monitoring  system/park ing 
heater 
12 S tar t/S to p  sys tem 
Fuse panel © (black) 
No.  Equipment 
1  Special  purpose  vehicles/ rear  seats 
252