warning light AUDI S8 2016 Service Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2016, Model line: S8, Model: AUDI S8 2016Pages: 302, PDF Size: 75.68 MB
Page 83 of 302

Starting  and  stopping 
the  engine 
Starting  the  engine 
The I S TAR T ENGIN E ST OP ! button  switches  the 
ignition  on  and  starts  the  engine. 
Fig. 88 Cente r co nsole:  S TART  ENG IN E  STOP b utton 
Switching  the  ignition  on /off 
.,.  To switch  the  ign ition  on/off,  press  the 
I START E NGIN E STOP ! button. Do  not  press  the 
brake  pedal  while  do ing  th is . Diesel  vehicles  a re 
preheated  while  the  ignition  is sw itched  on . 
Starting  the  engine 
~ Press  the  brake  peda l c:> _&. 
.,. Press  the I START E NG IN E ST OPI button 
c:> fig . 88 . The  engi ne w ill s tart. 
.,.  It  is  possible  that  there  will  be  a  slight  delay 
when  starting  the  eng ine  in d iesel  veh icles  in 
colder  temperatures . There fore,  you  mus t hold 
t h e  brake  pedal  down  un til the  eng ine  starts . 
The  ind icator  light  turns  o n while  the  engine  is 
preh eating 
m. 
If the  engine  sho uld  not  start  immed iate ly, the 
starting  process  is automatica lly stopped  after  a 
short  time.  Repeat  the  start ing  process . 
Start/Stop  system* 
Note  the  infor mation  in c:> page  85, Start/Stop 
system. 
_& WARNING 
- Never  allow  the  engine  to  run  in  confine d 
spaces  - danger  of asphyxiation. 
- Never  t urn  off  the  engine  before  the  ve hicle 
has  come  to  a  comp lete  stop . 
Drivi ng 
-The  brake  booster  and  power  steer ing  only 
work  when  the  engine  is  runn ing . If  the  en
g ine  is  off,  yo u have  to  use  more  force  when 
steer ing  o r braking . Because  you  cannot 
steer  a nd  b rake  as  you  usu ally would,  this 
could  lead  to  crashes  and  serious  injuries . 
(D Note 
Avoid  h igh  engine  speed,  full  th rottle,  and 
heavy  engine  load  as  long  as  the  eng ine  has 
not  reached  ope rating  temperature  yet . You 
could  damage  the  e ng ine . 
© Tips 
-Some  noise  after  start ing  the  engine  is  nor
ma l and  is  no  cause  for  co nce rn . 
- If you  leave  the  ve hicle w ith  the  ignition 
switched  on,  the  ig nit ion  w ill switch  off  af 
t er  a ce rtain  amount  of time.  Ma ke  sure  that 
el ec trical  equipment  such  as  the  exte rior 
ligh ts a re swi tched  off . 
Stopping  the  engine 
.,. Bring you r vehi cle  to  a  complete  stop. 
.,.  Move the  selector  lever  to  the  P o r N posit ion  . 
.,. Press the I ST AR T EN GINE ST OP ! button. 
Steering  lock 
The  steer ing  locks  when  yo u tur n the  eng ine  off 
u sing  the 
I S TART ENG INE S TOPI bu tton  and 
o pen  t he d river 's doo r.  T he  locked  steering  help s 
prevent  vehicle  theft. 
Emergency  off 
If necessary , the  eng ine  ca n be  switched  off  w ith 
t h e selec tor  lever  in the  R, Do r S posit io ns.  Th e 
engine  s tops  if you  press  and  hold  the 
!S TAR T EN GINE ST OP ! button  a t speed s below  6 
mph  ( 10  km/h)  and  press  the  bra ke  peda l. 
_& WARNING 
-Never  turn  off  the  engine  be fore  the  vehicle 
has  come  to  a complete  stop . The full  func
tion  of the  brake  booster  and  the  power 
steer ing  is  not  guara nteed.  You must  use  ..,. 
81  
Page 86 of 302

Driving 
E m erg ency b ra ke  function 
An emergency  b rake  ensures  that  the  veh icle  can 
be  slowed  down  even  if the 
normal brakes  fai l 
¢ page  85,  Emergency broking. 
.&_ WARNING 
-
Do not  press  the  accelerator  pedal  inadver
tently  if the  vehicle  is stationary  but  the  en
gine  is  runn ing  and  a gear  is selected.  Other
w ise  the  vehicle  will  start  to  move  immediate
ly and  could  result  in a  crash. 
(D Tips 
- If the  parking  brake  is  app lied  with  the  igni
tion  switched  off,  the  indicator  lights  in the 
switch  and  -(USA models)/ . (Cana-
da  models)  in the  instrument  cluster  will  go 
out  after  a  ce rtain  per iod  of  t ime. 
- Occasional  noises  when  the  parking  brake  is  applied  and  released  are  normal  and  are  not 
a  cause  for  conce rn. 
- When  the  vehicle  is parked,  the  park ing 
brake  goes  thro ugh  a self-test  cycle  at  regu
l a r i ntervals.  Any associa ted  noises  a re  nor
mal. 
Parking 
" Press  the  brake  ped al to  stop  the  vehicle. 
" Pull  the  switch 
«el} to  set  the  parking  brake . 
" Se lect  the  P selector  lever  position 
c:> poge  112. 
"Turn  the  eng ine  off c> &_ . 
"When  on incl ines  or  declines,  turn  the  steering 
wheel  so  that  your  vehicle  will  roll  into  the  c urb 
if  it  beg ins  to  move . 
.&_ WARNING 
-When  you  leave  your  vehi cle  -even  if on ly 
br iefly  -always  ta ke  the  ignition  key with 
yo u. This applies  par ticularly  when  children 
remain  in the  vehicle . Otherwise  the  chil 
dren  could  start  the  engine,  release  the 
parking  b rake  o r operate  elect rical  eq uip
ment  (e.g . power  windows).  There  is the  r isk 
of  an  accident. 
84 
-
- When  the  veh icle  is  locked,  no  one  -pa rtic u
larly  not  chi ldren  should  rema in  in the  vehi
cle.  Locked  doors  make  it  more  d ifficult  for 
emergency  workers  to  get  into  the  vehicle  -
putting  lives  at  risk  . 
Starting  from  rest 
The starting  assist  function  ensures that  the 
parking  broke  is released  automatically  upon  starting. 
Stopping  and  applying  park ing  brake 
" Pull  the  switch 
C®l to  apply  the  parking  brake . 
Starting  and automatically  releasing  the 
park ing  bra ke 
" When  you  sta rt  to  drive  as  usua l,  the  par king 
brake  is automatically  released  and  your  vehicle 
beg ins  to  move. 
When  stopping  at  a  traffic  signa l or  stopping  in 
city traffic,  the  parking  brake  can  be  applied.  The 
vehicle  does  not  have  to  be  held  with  the  foot
brake . The parking brake eliminates the tendency 
to  creep  w ith  a  dr ive  range  engaged.  As soon  as 
you  drive  off  as  usual,  the  parking  brake  is  re 
leased  a utomat ically  and  the  vehicle  starts  to 
move . 
Starting  on slopes 
When  starting  on  incl ines,  the  sta rting  assist  pre
vents  the  vehicle  from  un intent iona lly rolling 
back.  The  braking  force  of  t he  parking  brake  is 
not  released  u nti l sufficient  dr iv ing  force  has 
been  built  up  at  t he wheels . 
(D Tips 
Fo r safety  reasons,  the  park ing  brake  is  re
l eased  automatically  only  when  the  driver's 
safety  be lt  is e ngaged  in the  b uck le.  
Page 87 of 302

.... N 
0 J: 
'SI: .... 
To prevent  rolling back unintentionally  on an in
cline,  do the  following: 
11-Keep  the  sw itch<®) pulled  and  depress  the  ac
celerator.  The  parking  brake  stays  applied  and 
prevents  the vehicle  from  rolling  backward . 
11-You can  release the switch©  once  you are  su re 
that  you  a re  deve loping  enough  forwa rd mo
mentum  at the  whee ls as  you  depress  the  ac
celerator . 
Depending  on  the  weight  of  the rig  (vehicle  and 
trailer)  and  the  seve rity of  the  incline,  you  may 
roll  backwards  as you  start.  You can  prevent  roll
ing  backwards  by holding  the  parking brake 
switch  C®> pulled  out  and  accelerating  -just  as 
you  would  when  starting  on  a  hill with  a  conven
tional  hand brake. 
Emergency braking 
In  the  event  that  the  conventional  brake  system 
fails  or  locks. 
11-In  an  emergency,  pull  the  sw itch<®) and  contin
ue  to pull  it  to  s low your  vehicle  down  with  the 
parking  brake. 
11-As soon  as  you  release the  switch  © or  acceler-
ate,  the  brak ing  process  stops. 
If  you  pull  the  switch<®> and  hold it  above  a 
speed  of  about  5  mph  (8  km/h), the  emergency 
braking  function  is  in itiated.  The  vehicle  is  braked 
at  all four  wheels  by activating  the  hydrau lic 
brake  system . The  brake  performance  is  sim ilar 
to  making  an  emergency  stop¢,& . 
In  order  not  to  activate  the  emergency  brak ing  by 
mistake,  an  audib le warning  tone  (bu zzer) 
sounds  when  the  sw itch(®)  is  pu lled . As soon  as 
the  switch(®)  is  released,  or  the  accelerator  pedal 
i s  depressed,  emergency braking  stops . 
A WARNING 
Emergency braking should  only be used  in  an 
emergency,  when  the  normal  foot brake  has 
fai led  or  the brake  pedal  is obstructed.  Using 
t he  parking  brake  to  perform  emergency 
braking  will  slow  your  vehicle  down  as  if you 
D riving 
had  made  a  full  brake  applicat ion . The  laws  of 
physics  cannot  be suspended  even  with  ESC 
and  its  associated  components  (ABS, ASR, 
EDL). In  corners  and  when  road  or  weather 
conditions  are  bad,  a  full brake  application 
can  cause  the vehicle  to  skid or  the  rear  end  to 
b reak  away  -risking  an acc ident. 
Start/Stop  system 
Description 
Applies to:  vehicles  with  Start-Stop-System 
The  Start-Stop -System  can  help  increase  fuel 
economy  and  reduce CO2 emissions. 
In  the  Start-Stop-mode,  the  engine  shuts  off  au
tomatica lly when  the  vehicle  is stopped,  such  as 
at  a traffic  light . The  ign ition  remains  switched 
on  during  this  stop  phase.  The  eng ine  will  be  au
tomat ically  restarted  when  needed. 
The  last  Start-Stop-System  setting  (on/off  using 
the  b utton 
10 -I) will  be  restored  when  the  igni
t ion  is turned  on.  The  LED in the 
10 ~1 button  turns 
on when the Start-Stop-System is switched off 
manually . 
Basic requirements  for the  Start-Stop  mode 
-The  driver's  door  is closed. 
- The  driver'  seat belt  is latched . 
- The  hood  is closed. 
- The  vehicle  must  have  bee n driven faster  than 
2.5  mph  (4  km/h)  since  the last  stop. 
- A trailer  is not  hitched  to the  vehicle . 
A WARNING 
-
-Never  let  the  vehicle  roll  with  the engine 
switched  off.  You could  lose contro l over  the 
veh icle. Th is  can  lead  to a collision  and seri
ous  injuries . 
- The  brake  booster  and  the  steering  support 
do  not  work  while  the  engine  is switched 
off . More  force  is required  to  stop  and  to 
steer  the  vehicle. 
- To reduce  the  risk  of  injur ies,  ma ke  sure  that 
the  Sta rt-Stop-System  is turned  off  when 
working  in the  engine  compartment 
¢page  87. 
85  
Page 89 of 302

-The  windshield  is  being  defrosted~ page  79. 
-The  brake  pedal  is pressed  sever al t imes  in a 
row . 
- T he  battery  charge  level  becomes  too  low . 
- High  power  cons umption . 
Switching  the  ignition  off  automa tic ally 
To  prevent  the battery  from  dra ining,  the ignition 
will sw itch  off 
auto mati call y when  all of the  fol
lowing  cond itions  have  been  met: 
- The  vehicle  has  already been  driven. 
- The  eng ine  has  been  turned 
off by the  Start-
Stop -System*. 
- The  driver's  door  is  opened . 
- The  driver's  seat  bel t  is  removed. 
- The  brake  pedal  is not  p ressed  down. 
- The veh icle  is stationary. 
In  this  case,  the  activated  low  beam  will  be  re
p laced  by the  s ide  marker  lights.  The  side  marker 
lights  will  switch 
off after appro ximately  30  mi
nutes  or  when  you  lock the  veh icle. 
If  the  Start-Stop  System  has 
not turned  off  the 
engine  or  if you  have  sw itched  the  Start-Stop  sys
tem 
off manually , the  ignition  will not be  auto
mat ica lly switched 
off and  the  engine  w ill contin
ue  to  run~& . 
& WARNING 
Never  allow  the  engine  to r un  in  confi ned 
spaces  - da nger  o f as phyxia tio n. 
(D Tips 
-
If  you  shift  in to the  D,  Nor  S posit ions  after 
shifti ng  into  reve rse,  the  veh icle  must  be  driv
en  faster  th an  6  mph  (10  km/h)  in order  for 
t he  eng ine  to  swi tc h 
off aga in. 
D rivi ng 
Switching  the  Start-Stop-System  on/off 
manually 
Applies to:  vehicles with  Start-Stop-System 
If you  do not  wish  to  use  th e system,  you  can 
switch  it  off  manually. 
Fi g. 93 Center  console:  Start-Stop -System  button 
.. To  switch  the  Start-Stop-System  off/on  man
ually,  press the 
l(A) ~ I button.  The  LED in  the but
ton  turns  on  when the system  is switc hed 
off. 
(D Tips 
If  you  sw itch  the  system off during  a stop 
phase,  the  engine  will start  aga in  automati
cally . 
Messages  in the  instrument  cluster  display 
Applies to:  vehicles with  Start-Stop -System 
Start-Stop  system  deactiv ated:  Plea se restart 
engin e manually 
This  message  appears  when  spec ific  conditions 
are  not  met  during  a  stop phase  and  the  Start
Stop-System  will 
not be  able  to  resta rt  the  en
gine. 
If the  Dor  R selector  leve r pos itions  we re 
engaged,  P w ill  be  sele cted  automatically.  The 
engi ne  m ust  be  st arted  wi th t he 
I START  ENGINE  STOP! button . 
Start-Stop  s yst em : S y stem  fault!  Function un
available 
There  is a  malfunction  in the  Start-Stop-System. 
Drive  the  vehicle  to  an  a uthorized  repair  facility 
for  serv icing  as  soo n as  poss ible  to  cor rec t the 
malfunction . 
87  
Page 90 of 302

Driving 
Speed  warning  system 
Introduction 
The speed  warning  system  helps you  to  stay  un
der a specified  maximum  speed . 
The  speed  warning  system  warns  you  if you  are 
exceeding  the  maximum  speed  that  you  have  set . 
You will  hear  a warning  tone  when  your  speed  ex 
ceeds  the  stored  value  by approximately  3  mph 
(3  km/h).  An  indicator  light . (USA  models) . 
(Canada  models)  in the  instrument  cluster  dis
p lay  also  tur ns  on  at  the same  time.  The  indicator 
light  ••  turns  off  when  the  speed  decreases 
be low  the  stored  maximum  speed. 
Setting  a  threshold  is recommended  if you  would 
like  to  be  reminded  when  you  reach  a  certa in 
maximum  speed.  Situations  where  you  may  want 
to  do  so  include  driving  in  a  country  with  a  gener 
al  speed  limit  or  if there  is a  specified  maximum 
speed  for  winter  tires. 
(D Tips 
Even  though  your  vehicle  is equipped  with  a 
speed  warning  system,  you  should  still  watch 
the  speedometer  to  make  sure  you  are  not 
driving  faster  than  the  speed  limit. 
Setting  the  threshold 
You con set,  change  and  delete  the  threshold  in 
the  MMI. 
.,.  Select: 
ICARI function  button > Car  systems 
contro l button > Driver assist > Speed warning. 
You  can set  any  threshold  between  20  mph  (30 
km/h)  and  150 mph  (240  km/h).  Settings  can 
each  be  adjusted  in  increments  of  S mph  (10  km/ 
h). 
88 
Cruise  control  system 
Switching  on 
The cruise control  system  makes  it  possible  to 
drive  at  a constant  speed starting  at  20  mph  (30  km/h) . 
0 
f 
®l 
0 
Fig. 94 Contro l lever wi th se t but ton 
Fig. 95 D isp lay : Selected  speed 
g M 0 ± 
~ 
.,.  Pull  the  lever  to  position (D <::> fig . 94  to  switch 
the  system  on. 
.,.  Drive at  the  speed  you  wish  to  set . 
.,.  Press  button  @to set  that  speed  . 
The  stored  speed  and  the  indicator  light 
Iij;\1)~14 (US models) !Bl (Canadian  models)  ap
pear  in the  instrument  cluster  display 
c> fig.  95. 
The  display  may  vary,  depending  on  the  type  of 
display  in your  vehicle. 
This  information  is also  shown  briefly  in the 
Head-up  Display*. 
The  speed  is  kept constant  via  an  engine  output 
adjustment  or  active  brake  intervention. ..,_  
Page 91 of 302

..., 
A WARNING ,~ -
- Always  pay  attention  to  traffic  even  when 
the  cruise  control  is sw itched  on.  You are  al
ways  respons ible for  your  speed  and  the  dis
tance  between  your  vehicle  and  other 
vehicles. 
- For  safety  reasons, the  cruise  control  should 
not  be  used  in the  city,  in stop-and-go  traf
fic,  on  twisting  roads and when  road  condi
tions  are  poor (such  as  ice,  fog, gravel, 
heavy  ra in  and  hydroplaning)  -risk  of  acci
dent. 
- T urn  off  the  cruise  control  temporar ily when 
entering  turn  lanes,  highway  exit  lanes  or  in 
construction  zones. 
- Please  note that inadvertently  "resting" 
your  foot  on  the  accelerator  pedal  causes 
the  cruise  control  not  to  brake.  This  is be
cause  the  cruise  control  is overridden  by the 
driver's  acceleration. 
- If  a  brake  system  ma lfunction  such  as  over
heating  occurs  when  the  cruise  control  sys
tem  is switched  on,  the  braking  function  in 
the  system  may  be switched  off.  The  other 
cruise  control  functions  remain active  as 
long  as  the  indicator  light 
mI!Jm (US mod
els) 
;ii (Canadian  models)  is  on. 
The  brake  lights  illum inate  as  soon  as  the 
brakes  decelerate  automatically. 
Changing  speed 
.,.  To  increase/decrease  the  speed  in  increments, 
tap  the  lever  in  the 
010 direction Q page  88, 
fig.  94. 
.,.  To  increase/decrease  the  speed  quickly,  hold 
the  lever  in  the 
010 direction  until  the  de
sired  speed  is displayed. 
You can  a lso  press  the  accelerator  pedal  down to 
increase  your  speed,  e.g.  if you  want  to  pass 
someone . The  speed  you  saved  earlier  will  re-
"'  sume  as  soon  as  you  release  the  accelerator  ped-
o 
~ al. .... oJ) Lil 
.... oJ) .... 
Driving 
If, however,  you  exceed  your  saved  speed  by 
6  mph  (10  km/h)  for  longer  than  S minutes,  the 
cruise  control  w ill turn  off  temporarily.  The  green 
symbol 
AiW~1~ (US models) ! l'I in the  display  is 
rep laced  with  a white  symbol.  The  saved  speed 
remains  the  same . 
Presetting  your  speed 
You can preset your  desired  speed while  the  vehi
cle is not  moving. 
...  Switch  on  the  ignition. 
.,.  Pull  lever  into  position 
(D q page  88,  fig.  94. 
.,. Press  the  lever  in the 0 or 0 direction  to  in-
crease  or  decrease  your  speed . 
.,.  Release  the lever  to  save  that  speed. 
This function  makes  it possible,  for  example,  to 
save  the  speed  you  want  before  driving  on  the  highway . Once  on  the  highway,  activate  the 
cruise  control  by pulling  the  lever toward 
(D. 
Switching  the  system  off 
Temporary  deactivation 
.,. Press  the brake  pedal,  or 
.,.  Press  the  lever  into  position@ (not  clicked  into 
place) 
q page  88,  fig.  94, or 
.,.  Dr ive for  longer  than  S min utes  a t more  than 
S mph  (10  km/h)  above  the  stored  speed. 
Switching  off completely 
.,. Press  lever  into  pos it ion @  (clicked  into  p lace), 
or 
.,.  Switch  the  ignition off . 
The  system  retains  the saved  speed  if you  deacti
vate  the  cruise control  temporarily.  To  resume 
the  saved  speed,  release  the  b rake  pedal  and  pull 
the  leve r to  position (!). 
Switching  the  ignition  off  erases  the  saved  speed. 
A WARNING 
You should  only  return  to  the  saved speed  ifit 
i s  not  too  fast  for  the current  traffic condi
tions  - risk  of an  accident! 
89  
Page 95 of 302

Audi adaptive  cruise  control  and  braking  guard 
.. You must  also  press  the  brake  pedal  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 
appea rs. 
@ Indicator  lights 
II-Adapt ive cru ise  control  is switched  on . No 
vehicles  are  detected  up  ahead.  The  stored  speed 
is  ma inta ined . 
• -A moving  vehicle  is detected  up  ahead . The 
adapt ive cruise  control  system  regulates the 
speed  and  distance to  the  moving  vehicle  ahead 
and  accelerates/brakes  automatically. 
(-) -Adaptive  cru ise  control  is switched  on . A 
mov ing  vehicle  up  ahead  was  detected . Your veh i
cle  remains  stopped . 
• -When  automatic  braking  is not  able  to  keep 
enough  d istance  to  a  previously  detected  moving 
veh icle  up  ahead,  you  must  take  control  and 
brake 
c::> page  95,  Prompt  for driver interven
tion. 
© Display 
If  adaptive  cruise  control  is  not  shown  in  the  dis
play,  you  can  call  it  up  with  the  multifunction 
steer ing  wheel  buttons  c::> 
page 23. 
Based  on  the  symbols  in the  display, you  can  de
termine  if the  system  is ma inta ining  a  distance  to 
the  vehicle  ahead  and  what  that  distance  is. 
No vehicle  -No vehicle  ahead  was  detected. 
White vehicle  -A vehicle  ahead  was  detected. 
Red vehicle  -Prompt  for  the  driver  to take  action 
c::>page  95. 
Both arrows on  the scale © indicate  the  distance 
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  dis
tance . For  information  on  chang ing  the  stored 
distance,  refer  to 
c::> page  94. If the  distance  se-lected  is too 
close or  may  soon  become  too close, 
the  arrows  move  into  the  red  zone  on  the  scale . 
A WARNING 
Improper  use  of  the  adaptive  cruise  control 
can  cause  collisions,  other  accidents  and  seri
ous personal  injuries. 
- Pressing  the 
ISETI button  when  driving  at 
speeds  below  20  mph  (30  km/h),  will  auto matically  accelerate  the  ve hicle  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  Stabiliza
tion  Control  (ESC) to  the  SPORT mode  when 
adaptive  cruise  control  is switched  on . 
Changing  the  speed 
Applies to:  vehicles  with  Aud i adapt ive  cru ise control 
0 
f 
• 
0 
Fig.  102 Selector  lever: chan gin g t he  speed 
.. To increase  or  reduce  the  speed  in increments, 
tap the  lever  up  or  down  . 
.,.  To increase  or  reduce  the  speed  quickly, 
hold 
the lever  up  or  down  until  the  red  LED@reach
es  the  desired  speed c::> 
page 92, fig. 101. 
Following  any  changes,  the  new  stored  speed  will 
be  displayed  br iefly  in the  display @c::> 
page 92, 
fig. 101 . 
93  
Page 97 of 302

Audi adaptive  cruise  control  and  braking  guard 
The distances  provided  are  specified  values . De
pending  on  the  driving  situation  and  the  how  the 
vehicle  ahead  is driving,  the  actual  distance  may 
be  more  or  less than  these  target  distances. 
The various  symbols  for  the  time increments  ap
pear  briefly  in the  information  line@~ 
page 92, 
fig. 101 when  you  change  the  settings. 
~-~ --- Distance  1: This setting  corresponds 
to  a  distance  of 92  feet/28 meters  when  travel
ing at  62  mph  (100  km/h),  or  a  time  interval of 1 
second. 
~ -- ~-- Distance  2: This setting  corresponds 
to  a  distance  of  118 feet/36  meters  when  travel
ing at  62 mph  (100  km/h),  or  a  time  interval of 
1.3  seconds . 
~--- ~-Distance  3: This setting  corresponds 
to  a  distance  of  164 feet/SO  meters  when  travel
ing at  62  mph  (100  km/h),  or  a  time  interval of 
1.8  seconds. 
~ ---- ~ Distance 4: This setting  corresponds 
to  a  distance  of  210 feet/64  mete rs when  travel
ing at  62  mph  (100  km/h),  or  a  time  interval  of 
2 .3  seconds. 
.&_ WARNING 
Following  other  vehicles  too  closely  increases 
the  risk of  col lisions  and  ser ious  personal  in
jury. 
- Setting  short  distances  to  the  traffic  ahead 
reduces  the  t ime  and  distance  available  to 
bring  your  vehicle  to  a safe  stop  and  makes 
it  even  more  necessary to pay  close  atten
tion  to  traffic. 
- Always obey  applicable  traffic laws, use 
good  judgment,  and  select  a safe  following 
distance  fo r the  traffic,  road and  weather 
con ditions. 
(0 Tips 
-Distance  3 is set  automatically  each  time 
you  switch  the ignition  on. 
- Your  standard  sett ings  are  automatically 
stored  a nd  assigned  to  the remote  control 
key  being used. 
Selecting  the  driving  mode 
Applies  to:  vehicles with  Audi adaptive  cruise control 
• Select  the desired  driving mode in  drive  select 
~page 106. 
(D Tips 
Your settings  are  automatically  stored  and  as
signed  to  the  remote  control  key being  used. 
Prompt  for  driver  intervention 
Applies  to:  vehicles with  Audi adaptive  cruise control 
Fig . 105  Instrument  cluste r: request  for  driver interve n
tio n 
In  certain  situations,  the  system  will  prompt  you 
to  take  action.  This could  happen,  for  example,  if 
braking  by the  adaptive  cruise  control  system  is 
not  enough  to  maintain  enough  distance  to  the 
vehicle  ahead. 
T he  ind icator  light . and  the  symbol  in the  dis 
play  will warn  you  about the  situation~ 
fig. 105. 
You will  also  hear  an  acoustic  signal. 
- Press  the  brake  pedal  to  slow  your  vehicle 
down . 
95  
Page 98 of 302

Audi  adaptive cruise  control  and  braking  guard 
Audi  braking  guard 
Description 
Applies  to:  vehicles  w ith  Aud i adapt ive c ru ise  co ntro l 
Fig.  106 Instrument  cluster : approac h 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 vehicle  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  situat 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  avo id a coll is ion. The  indicator  light. 
in  the  display  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
sible  to avo id a collision  by  swerving or  braking 
sharp ly.  Th e indicator  light. and  indicator  in 
the  display  will  warn  you about  the  danger 
qfig. 106. You will  also  hear an acoustic  signal. 
If  you  do not  react  fast enough  or  do not  react  at 
all  to  t he situation,  braking guard will  intervene 
by braking  and  the  message 
braking guard  inter
vention 
will  appear. 
l) Thi s is  not  available  in some  countries. 
96 
-If  a collision  is imminent,  the  system  will  first 
provide  an 
acute warning by briefly  and sharply 
app ly ing the  brakes. 
- If  you  do not  react  to  the  acute warning,  brak
ing  guard  can  brake with  increasing  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 co llision
1
) . Full  deceleration  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  imminent 
qpage  187. 
Which  functions  can be controlled? 
You can switch  braking guard  and the  distance/ 
approach  warning  on or  off  in  the  MMI 
¢ page 9 7, Settings  in  the  MMI. 
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 . The  driver  must 
always  intervene.  The driver  is always  respon
sible  for  braking  at  the  correct time. 
- Always pay close  attention  to  traffic,  even 
when  the  braking  guard  is switched  on.  Be 
ready to  intervene  and  be ready  to take 
comp lete  control  whenever  necessary. Al
ways  keep the  safe  and legal  distance  be
tween  your  vehicle  and veh icles up ahead. 
- Braking  guard works  within  limits  and will 
not  respond  outside  the  system  limits, for 
example  when  approaching  a stopped  vehi
cle or  stationary  obstacle  (end of  a traffic 
jam  or vehicle  that  has broken  down  in traf
fic). 
- Always remember  that  the  radar  sensor for 
-
the  brak ing guard  works  only  within  def ined  ..,.  
Page 101 of 302

Audi  active  lane  assist Lane  assist 
Description 
Applies  to:  veh icles  with  act ive lane  assist 
Active  lane  assist  helps you  keep your  vehicle  in 
your  lane . 
Active  lane assist  detects  lane  marker  lines  with
in the  limits 
of the  system  using  a camera  in the 
windshield.  If  you  are approaching  a detected  lane marker  line  and  it  appears  likely  that  you 
will  leave the  lane , the  system  will  warn  you  by 
means of  correct ive steering . T he dr iver can over
ride the  correct ive steering  at  any time.  If  the  ve
h icle  crosses a line,  the  drive r is also warned  by a 
light 
vibration in the  steering  wheel.  The vibra
tion  warning  must  be switched  on  in the  MMI  for 
this  to  happen.  Active  lane  assist  is operable 
when  the  line  marking  the  lane  is detected  on at 
least  one side of  the  vehicle. 
The system  is designed  for  driv ing on freeways 
and expanded  highways  and thus  works  only  at 
speeds of  40  mph  (65  km/h)  or  more. 
Applies  to  vehicles  with  side assist* : If  you acti 
vate your  turn  signal  when  active  lane  assist  is 
ready and when  activated  side assist  has class i
fied  a lane change as critical  because of  vehicles 
traveling  alongside  you or  coming  closer,  there 
will  be noticeable  corrective  steering  just  before 
you  leave the  lane . Th is is done to  try  to  keep 
your  veh icle in the  lane . 
Applies  to  vehicles without  side assist*:  when  the 
system  is ready,  it  does not  warn  you  if  you acti 
vate  your  turn  signal  before  driving  across a lane  marker  line.  In  th is case,  it  assumes that  you  are 
changing  lanes  intent ionally. 
If  the  vehicle  is also equipped  with  Audi  adaptive 
cru ise control*,  the  corrective  steering  w ill  be 
more  spec ific  in regard  to  the  driving  situation . 
I n addition  to  the  lane marker  lines,  the  system 
can also take  into  acco unt  other  objects  such as 
guard  rai ls. If  they  are detected  in  close prox imi
ty  to  the  vehicle,  Audi  active  lane assist  helps 
prevent  the  vehicle from  driv ing too  close to 
them.  There  is also passing  assistance . The sys-
Audi  act ive  lane ass ist 
tern  does  not  provide  any corrective  steering  if  it 
detects  that  you  are passing  another  vehicle . 
A WARNING 
--The system  warns  the  driver  that  the  vehicle 
is leaving  the  lane using  correct ive steering. 
The driver  is always  responsible  for  keeping 
the  vehicle  within  the  lane. 
- The system  can assist the  dr iver in  keeping 
the  vehicle  in the  lane,  but  it  does not  steer 
by itself . Always  keep your  hands on  the 
steer ing wheel. 
- Corrective  steering  may  not  occur  in  certain 
situations,  such as during  heavy braking . 
- The camera does not  recognize all  lane 
marker  lines.  Correct ive steering  can only 
take  place on the  side of  the  vehicle  where 
lane marker  lines  are detected. 
- Other  road  structures  or  objects  could  poss i
b ly be identified  un intentionally  as lane 
marker  lines. As a result,  co rrective  steering 
may  be unexpected  or  may not  occ ur. 
- The camera view  can be restricted,  for  ex
ample 
by vehicles  driving ahead or by rain, 
snow,  heavy spray or  light  shining  into  the 
camera.  This  can result  in active  lane ass ist 
not  detecting  the  lane  marker  lines  or  de
tect ing them  incorrectly . 
- Unde r certain  condit ions such as r uts  in the 
road,  a banked  roadway  or  crosswinds,  the 
correct ive steer ing alone  may not  be enough 
to  keep the  vehicle  in the  lane. 
- For safety  reasons,  active  lane assist  must 
not  be used when  there  are poor  road and/ 
or weather  conditions  such as slippery  roads,  fog,  gravel,  heavy rain,  snow  and the 
potential  for  hydrop lan ing . Using active  lane 
assist  u nder  these  condit ions may  i ncrease 
the  risk  of  a crash. 
99