sensor AUDI S6 2010 Service Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2010, Model line: S6, Model: AUDI S6 2010Pages: 368, PDF Size: 86.82 MB
Page 216 of 368

-Airbag  system PIS!- --=--=----------------
& WARNING (continued) 
•  Always  use  the  built-in  coat hooks  only  for  lightweight 
clothing.  Never leave  any  heavy  or sharp-edged  objects  in the 
pockets  that  may  interfere  with  side  airbag  deployment  and  can 
cause  personal  injury  in  an  accident. 
•  Always  prevent  the  side  airbags  from  being  damaged  by heavy 
objects  knocking  against or  hitting  the  sides of  the  seatbacks. 
•  The airbag  system can  only  be triggered  once.  If the  airbag  has 
been  triggered,  the  system  must  be  replaced  by an  authorized 
Audi dealership. 
•  Damage  (cracks, deep  scratches  etc.)  to  the  original  seat  covers 
or  to  the  seam in the  area  of the  side airbag  module  must  always 
be  repaired  immediately  by an  authorized  Audi  dealer. 
•  If  children  are  seated  improperly,  their  risk  of  injury  increases 
in the  case  of  an  accident =:> 
page 217, "Child  Safety". 
•  Never attempt  to  modify  any components  of the  airbag  system 
in any  way. 
•  In  a  side  collision,  side  airbags  will  not  function  properly  if 
sensors  cannot  correctly  measure  increasing air  pressure  inside 
the  doors  when  air  escapes  through larger,  unclosed  openings  in 
the  door  panel. 
- Never drive  with  interior  door  trim  panels  removed. 
-Never  drive  when  parts  have  been  removed  from  the  inside 
door  panel  and  the  openings  they  leave  have  not been  properly 
closed. 
- Never drive  when  loudspeakers  in the  doors  have  been 
removed  unless  the  speaker  holes  have  been  properly  closed. 
- Always  make  certain  that  openings  are  covered or  filled  if 
additional  speakers  or  other equipment  is  installed  in the 
inside  door  panels. 
- Always  have  work  on  the  doors  done  by an  authorized  Audi 
dealer  or  qualified  workshop.  • 
Side  curtain  airbags 
Description  of  side  curtain  airbags 
The side  curtain  airbag system  can provide  supplemental 
protection  to properly  restrained  occupants. 
Fig . 187  Side  curtain 
airbags , driver 's side: 
locati on 
The  side  curtain  airbags  are  located  on  both  sides  of the  interior 
above the  front  and  rear  side windows =:> fig.  187 . They  are  identif ied 
by the  wo rd "AIRBAG" on the  windshield  frame  and  the cente r roof 
pillar. 
Th e  side  curtain  airbag  system  supplements  the  safety  belts  and  can 
he lp to  reduce  the  risk of injury  for  occupants'  heads  a nd upper  torso 
on  the  side  of the  vehicle th at  is  struck  in a si de collis ion. The  side 
curtain  a irbag  inflates  only  in side  impacts  and  only whe n the  vehicle 
acceleration  registered  by  the control  u nit  is high  enoug h. 
If this rate 
is  below  the  reference  va lue  programmed  in to  the  control  unit,  the 
side  airbags  wi ll not  be triggered,  even  though  the  car  may  be  badly 
damaged  as  a result of the  collision.  It  is not  possible  to  define  an 
airbag  triggering  range  that  wi ll cover every  possible angle of  impact, 
since  the  circumstances  will  vary consid erably  between  one  collision 
and  another.  Important  factors  include,  for  example,  the  nature 
(h ard  or  soft)  of  the  impacting  object,  the  angle  of  impact, vehicle 
speed,  etc.=:> 
page 215, "H ow s ide curta in a irbags  wor k".  .,_  
Page 217 of 368

Aside  from  their norma l safety  function,  safety  be lts  work  to  he lp 
kee p th e dr iver  or  fron t  p asse n ger  in  posi tion  in t he  even t  of a  c olli
sion  so  that  the  side  cu rtain  a irbags  can  provide  protection. 
T he a irbag  system  is not  a substitute  for  your  safety  belt . Rathe r,  it  is 
par t  of the  ove rall o ccu pan t  res traint  syste m  in  your  vehicle . A lw ay s 
remember  t hat  the  airba g system  can  on ly help  to  protect  you  if you 
a re  we ari ng your  safety  bel t  and wearing  it  prop erly. Thi s  is  ano ther 
reaso n why you  s hou ld always  wea r your  safety  be lts,  not  just  because 
th e law  requi re s  you  to  do  so=> 
page 185, "G ene ral no tes". 
It  is i mpo rtant  to  re m ember  that  while  the  s ide curta in airbag  system 
is  des igned  to  help  re duce  the  likelih ood  of  serious  injuries,  ot her 
i n jur ies,  fo r exa mple, sw elling,  br uising,  a nd  m inor  ab rasions  can 
also  be  assoc iated  wit h these  airbags  upo n dep loyment . Remembe r 
t o o , these  a irbags  w ill d eploy  only on ce  an d on ly in  ce rt ain  kinds  of 
acc idents  -yo ur  safety  belts  are  always  there  to  offer  protection. 
The  side  curtain  airbag  system  basically  consists  of: 
•  Th e  electronic  co ntro l mo dule  an d external  side  impact  sensors 
•  The  side  c urtai n airbags  above  the  fro nt  an d rear  s ide windows 
•  Th e airba g  indic ator  ligh t  in the  ins trumen t  panel 
Th e  a irbag  system  is  monitored  elec tron ically to  make  certai n it  i s 
functioning  prope rly at  a ll times . Each time  yo u turn  on  the  ignition, 
t h e airbag  sys tem  indicator  ligh t w ill  com e on  for  a few  seconds  (s elf 
diagnostics) . 
The  side  curtain  airbag  is  not  activated: 
• if the  ignition  is  turned  off, 
•  in side  co llisions  when  the  accelerati on  measured  by the  sens or  is 
t o o  low, 
•  in front-end  col lisions, 
•  in re ar -end  co llisions, 
•  in rollovers. 
Safety first Vehicle  OP-eration 
Airbag  system 
& WARNING 
• Safety  belts  and the  airbag  system will  only  provide protection 
when  occupants are  in the  proper  seating  position => 
page 75, 
"General  recommendations ". 
•  If the  airbag  indicator  light  comes on when  the  vehicle  is being 
used,  have the  system  inspected  immediately  by your  authorized 
Audi  dealer.  The side curtain  airbag  may  not  work  properly  even 
when  the  vehicle  acceleration  in a side collision  is high  enough  to  activate  the  airbag.~ 
How  side  curtain  airbags  work 
Side cu rtain  ai rbags  c an  wo rk to gethe r  w it h sid e airba gs 
to h elp r ed uce  the risk of h ead and  upp er tors o inju rie s f or 
o cc u pan ts  who  are pr operly  restr ained. 
Fig . 188  Illu str ation 
of  principle: Inflated 
side  curt ain  airbag s on 
the  left  side 
Th e  side  curtain  airbags  in flate  between  the  oc cupan t  and  t he 
w indows  on  the  side  of  the  vehicle  t hat  is struck  in a  sid e co llision 
=>  fig.  188. 
Wh en the sys tem  is  tr igg ered,  the  side  curta in airbag  is filled  w ith 
pro pell ant  gas  and  breaks  th rough  a seam  above  the  front  and  rear 
s ide w indow s iden tifi ed  b y the AIRBAG  label. In  or der  to help  pro vid e 
this  additional  protection,  the  side  c urta in airbag  must  inflate  with in 
th e  bl ink of an  eye  at very  hi gh  speed  and  wi th gre at  force.  The  side  ._ 
Vehicle  care  Do-it-yourselt service  iTechnical data  
Page 221 of 368

-----------------------------------------~C~ h~il ~d ~ S~a _!fe ~ t !;YL  __ 
and  for  the  different  models of  the  same  kind  of  child  restraint 
offered  by child  restraint  manufacturers. 
The  weight  ranges  for  the  individual types,  makes  and  models  of ch ild 
restraints  that  the  NHTSA has  specified  in the  Safety  Standard 
together  with  the  weight  ranges  of  typical infants and  typical  1 year
old  child  have  been  stored  in the  control  unit of  the  Advanced  Airbag 
System.  When a  child restraint  is being used on  the  front  passenger 
seat  with  a  typical  1 year-old  chi ld,  the  Advanced  Airbag  System 
compares  the  weight  meas ured  by  the weight  sensing  mat  with the 
information  stored  in the  electronic  control  unit . 
The  electronic  contro l unit  a lso  registers  the  tension  on  the  front 
passenger  safety  belt.  The  tension  on the  safety  belt for  the  front 
passenger  seat  will  be different  for  an  adult  who  is  properly using  the 
safety  belt  as  compared  to the  tension  on  the  belt when  it  is used  to 
attach  a child  restraint  to  the  seat . The  sensor  below  the  latch  for  the 
safety  belt  for  the  front seat passenger  measures  the  tension  on  the 
belt.  The  input from  this  sensor  is then  used  with  the  weight  to 
"decide",  whether  there is a  child  restraint  with  a typical 1 year-old 
child  on the  front  passenger  seat  and  whether  or  not the  airbag  must 
be  turned  off .• 
Child  restraints  and  Advanced  Airbags 
Regardless  of the  child  restraint  that  you  use,  ma ke  sure  that  it has 
been  certified  to  meet  United  States  Federal  Motor  Vehicle  Safety 
Standards  and has been  ce rtified  by  its manufacturer  for  use  with  an 
airbag . Always  be sure  that  the  child  restraint  is  properly  installed  at 
one  of the  rear  seating  positions.  If in exceptional  circumstances  you 
must  use  it  on the  front  passenger  seat,  carefully  read all of  the  infor
mation  on  ch ild safety  and  Advanced  Airbags  and  heed all  of  the 
app licab le WARNINGS.  Make certain  that  the  child restra int  is 
correctly  recognized  by the  weight-sensing  mat  inside  the  front 
passenger  seat,  that  the  front passenger  airbag  is turned  off  and that 
the  airbag  status  is always  correctly  signaled  by the 
PASSENGER  AIR 
BAG OFF 
light. 
Controls  and  equip ment  Safety  first  Vehicle  operation 
Many  types  and  models  of  child  restra
ints  have  been  available  over 
t he  years,  new  models  are  introduced  reg ularly incorpo rating  new 
and  improved  designs  and  older  models  are  taken  out  of  product ion. 
Chi ld  restraints  are  not  standardized.  Child  restraints of  the  same 
type  typ ically  have  d ifferent  weights  and  sizes  and  differe nt  'foot
prints,'  the  size  and  shape  of  the  bottom  of  the  child  restraint  that 
sits  on  the  seat,  when  they  are  installed  on  a vehicle  seat . These 
differences  make  it  virtually  impossib le  to  certify  compliance  with 
t he  requirements  for advanced  airbags  with  each  and every  chil d 
restra int  that  has  ever  been  sold  in the  past  or  will  be  sold  over  the 
course  of  the  useful  life  of your  vehicle. 
For this  reason, the  United  States  Nationa l Highway  Traffic  Safety 
Administration  has published  a  list  of  specific  type,  makes  and 
mode ls of  child  restra ints  that  must be  used  to cert ify  compliance  of 
the  Advanced  Airbag  System  in yo ur vehicle  with  the  suppression 
requirements  of  Federal Motor  Veh icle Safety  Standard  208.  These 
child  restraints  are: 
A. Car  beds,  manufactured  on  or  after  September  1, 
2004: 
• Cosco  Dream  Ride 02-719 
B. Rear  facing  child restraint  systems, 
manufactured  on  or  after  September 1,  2004: 
(When  the  restraint  system  comes  equipped  with  a  removable base, 
compliance  has to be  cert ified  with  or  without  the  base) . 
•  Britax  Handle  with  Care  191 
•  Century  Assura  4553 
•  Century  Smart Fit 4543 
•  Cosco Arriva  02727 
•  Evenflo  Discovery  Adjust  Right  212 
•  Evenflo  First Choice  204 
•  Graco  Infant  8457 
Vehicle  care  Do-it-yourself  service  Technical data  
Page 242 of 368

Intelligent  technology 
'-----------------------------------------------
Intelligent  technology 
Notice  about  data  recorded  by 
vehicle  control  modules 
Your vehicle  is not  equipped  with  an  Event  Data  Recorder  (EDR), 
installed  by some  manufacturers  for  the  express  purpose of 
capturing  data  for  retrieva l after  an  accident  or crash  event.  ED R's are 
sometimes  called  "crash  recorders". 
Some  state  laws  restrict  the  retrieval  or  downloading  of  data  stored 
by  ED R's that  were  installed  in a vehicle  for  the express  purpose  of 
retrieving  data  after  an  accident  or  crash  event  without  the  owner's 
consent. 
Although  your  vehicle  is  not equipped  with  an  EDR, it is equipped  w ith 
a  number  of  electronic  control  modu les  for  various  vehicle  systems 
such  as,  for  example,  engine  function,  emission  control,  as well  as  for 
the  airbags  and  safety  belts. 
T hese  electronic  contro l modules  also  record  vehicle-re lated  data 
during  normal  vehicle  operation  for diagnostic  and  repair  purposes . 
Th e recording  capacity  of  the  e lectronic  control  modu les  is  limited  to 
data  (no  sound  is  recorded) and  only  a  sma ll amount  of  data is actu
ally  recorded  over  a very  limited  period  of  time  and  stored  when  a 
system  fault  or  other  condition  is sensed by  a control unit.  Some  of 
the  data  then  stored  may  relate  to  vehicle  speed,  direction,  braking 
as  well  as  restraint  system use  and  performance  in the  event  of  a 
crash  or  other  condition.  Stored  data  can  only  be  read  and  down
loaded  with  special equipment. 
Electronic  Stabilization  Program 
(ESP) 
General  information 
The ESP improves  the  vehicle  stability. 
l, I 
Fig.  201  Center 
console with  ESP 
switch 
ESP is des igned  to  help  you  maintain  vehicle  control  in  s ituations 
where  the  car  approaches  the  limits  of  "grip",  especia lly when  accel
erat ing  and  cornering.  ESP reduces  the  risk of  skidd ing and  imp roves 
stability  under  all  road  conditions. 
Th e system  operates  across  the  entire  speed  range  in  combination 
with  the  ABS system.  If the  Anti-Lock  Brake  System  (ABS) malfunc
tions,  the  ESP  will also  shut down. 
How  the  system works 
The Anti-Lock  Brake  System  (ABS), Electronic  Differential  Lock  (EDL) 
and  the  Anti-Slip  Regulation  System  (ASR) are  integrated  in the  elec
tronic  stabilizatio n  pro gram.  In  addition  to  the  data provided  by 
these  funct ions,  the  ESP control  unit  requires additional  measure
ment  data  provided  by  high  performance  sensors.  The  rotational 
speed  of  the  vehicle  about  its  vertical  axis,  veh icle  acceleration  in the  ...  
Page 243 of 368

Intelligent  technology 
--------------------------------------------------' '----'----
fore-and-aft  and  lateral directions,  the brake  pressure  and  the 
steering  angle  are  all  measured. 
The  direction  in which  the  driver  wishes  to  travel is determined  with 
the  aid  of  the  steering  angle  and  vehicle  speed  and  is continually 
compared  with the actual  behavior  of the  vehicle.  If  the  two do not 
match,  for  example , when  the  vehicle  starts  hydroplaning on  a wet 
road,  ESP will  automatically  brake the appropriate  wheel  to correct 
the  problem. 
The  vehicle  is then  stabilized  by the  forces  acting  on  the  wheel  during 
braking.  If  the  vehicle  is 
oversteering (rear  tends  to  skid  out  of  the 
turn),  the  brakes are  mainly  applied  on  the  wheel  that  is on  the 
outside  of  the  curve.  In  the case  of  a vehicle  that  is 
understeering 
(tendency  to  slide  out  of  the  curve),  the  brakes are  applied  at  the  rear 
wheel  that  is  on  the  inside of the  curve.  An acoustic  signal  indicates 
when  ESP brake  application  cuts  in  => 
&. 
The  system  operates  across  the  entire  speed  range  in combination 
with  the  ABS system  => 
page 244. If  the  Anti-Lock  Brake  System 
(ABS) malfunctions,  the  ESP will  be  out  of  action  as  well. 
Activating 
When  you turn  on the  engine,  ESP will  automatically  be activated  and 
will  perform  a self-test . As soon  as  the  test  is completed,  the  system 
is  in  normal  operating  mode. 
You can  activate  a deactivated  ESP or  deactivated  ESP/ ASR if  required 
by  pressing  the=> 
page 240, fig.  201  button.  When they  are  acti
vated,  the  message 
ESP/ASR on appears  briefly  in  the display . 
Deactivating 
The  ESP  should  normally  be  activated  all  the  time. If necessary , you 
can  deactivate  Anti-Slip  Regulation  (ASR) or  the  Electronic  Stabiliza
tion  Program  (ESP) by pressing  the button => 
page 240, fig. 201. 
•  Deactivating  ASR: Tap  the  but ton . In  certain  excep tional  situa
tions  (e.g. driving  with tire  chains) , the  Anti-Slip  Regulation  (ASR) can 
be  deactivated=> 
page 242 . The  message ASR off appears  in the 
display  as  well. 
Controls  and  equip ment  Safety  first  Vehicle  operation  • 
Deactivating  ESP/ASR 
Press  the  button  for  more  than  3 seconds . 
With  the  ESP/ASR deactivated,  the  ESP check light  comes  on,  see 
=> 
page  14. The  message ESP switched  off appears  in the  display  as 
well. 
& WARNING 
The Electronic Stabilization  Program is nevertheless  subject  to the  laws  of  physics.  It  is  particularly  important  to  pay attention  to 
this  fact  on wet  and  slippery  roads.  It  is  therefore  important  that 
you  always  adapt  your driving  to  the  condition  of the  road and  traffic  conditions.  Do not  allow  the  increased  safety  provided  by 
the  Electronic  Stabilization  Program system  to  lull you  into 
accepting  additional  safety  risks. • 
Electronic  differential  lock  (EDL) 
The electronic differential lock monitors  the  rotational 
speed  of  the  drive  wheels. 
General  notes 
The electronic  differential  lock  (EDL)  helps  the car  to  start  moving, 
accelerate  and  climb  a  gradient  on  surfaces  providing poor  or  almost 
no  grip . Without  EDL, this  would  be  difficult, if not  impossible . 
How  the  system  works 
The EDL operates  automatically . It  monitors  the  rotational  speed  of 
the  drive  wheels  on  an  axle  with  the  help  of  the  ABS sensors 
=> 
page 244 . If a  noticeable difference  in rotational  speed between 
the  drive  wheels  on  one  axle  is detected  (e.g.  on  slippery  ground 
on 
one side), 
the  spinning  wheel  is braked,  thereby  transferring  power  to 
the  othe r drive  wheel  or wheels  (all-wheel  drive).  This  is done  up  to  a 
speed  of  about 60 mph  (100  km/h) . Noises  from  the  brake  system 
signal  that  wheel  spin  is  being  controlled. 
Vehicle  care  Do-it-yourself  service  Technical  data  
Page 244 of 368

Intelligent  technology 
'-----------------------------------------------
Driv ing  off 
When  driving  off,  always  be  sure  to  keep  road  conditions  in  mind  as 
you  acce lerate.  If one  d rive w heel  spins  because  it  is on  a surface  with 
less  grip,  gradua lly  inc rease  the  press ure  on  the  accelerator  pedal 
un til the  car  sta rts  to  move . 
Overheating  of  brakes 
To prevent  the  disc  brake  of  the  braked  wheel  from  overheating  if 
subjected  to  excessive  loads  o n this  whee l, t he  EDL cuts  out  tem po
ra rily. The  vehicle  rema ins operat iona l a nd  be haves  in the  same  way 
as  a  ve hicle  wit hout  EDL. 
As  soon  as  the  bra ke  has  coo le d  down , ED L swit ches  on  again  au to
matically. 
& WARNING 
•  When  accelerating  on slippery  surfaces , such as on i ce or snow , 
alway s be careful  when  depre ssing  the  accelerator  pedal.  Even 
with  the  EDL work ing , the  drive wheels  can spin and  reduce your 
ability  to  control  your  car.  Risk of  crash! 
•  The  increased safety  afforded  by EDL does  not  mean  that  you 
can take  safety  ri sks . Always  adapt  your  driving  style  to  the  road 
conditions  and  traffic  situation. 
(I) Tips 
If  a  fa ult  occurs  i n the  ABS, the  EDL is also  not  f unct io ni ng . This  is 
indic ated  by t he A BS war ning  ligh t=> 
page 17. 
Anti-Slip  Regulation  System  (ASR) 
The  Anti- S lip Re gula tio n Sy stem  preven ts  the  dr iven 
w heels  from  spin ning  w hen  t he car is accelerating . 
General  notes 
The Anti-S lip  Reg ulation  Sys tem  (AS R)  is  in tegr ate d in the  ele ctroni c 
stabilization  program  (ESP) . When  the  ve hicle  starts  up  and  acceler
at es,  the  whee ls are  p reven ted  from  sp inning  by adjust ing  t he engine 
power  to  match  the  amount  of  grip  avai lable  from  the  road  surface. 
How  the  system  works 
ASR performs  automatically,  i.e.  witho ut  the  driver 's  intervent ion. 
W ith  the  a id of t he ABS  sensors=> 
page 244, ASR moni to rs the  speed 
of  the  dr iven  wheels.  If  the  wheels  start  to  spin , th e engine  torque  is 
redu ced  a utomatically  unti l the  t ires  find  enou gh  gr ip  to  lock  onto 
the  road  surface.  T he  system  is active  across  the  entire  speed  range . 
Th e ASR works  in conjunction  with  the  ABS. If  a  malfunction  sho uld 
occ ur  in th e ABS, th e AS R w ill  also  be  out  of  action. 
Activating 
The  ESP is automatically  activated  whe n the  engine  is started  and  it 
performs  a se lf-test.  You can  act ivate  a  deact ivate d ASR if required  by 
press ing  the=> 
pag e 240, fig.  201  button.  Whe n it  is act ivated,  t he 
message 
ESP/ASR on appears  briefly  in t he disp lay.  Vehicles  with 
front-wheel  d rive a dea ct iva te d  ASR a uto mat icall y re-ac tiva tes  i tself 
at  a  speed  of  40  mp h (70  km/h) . 
Deactivating 
You can deact ivate  t he ASR if required  by  pressing  t he button  (for  less 
t han  3 se conds) => 
page 240, fig. 2 0 1. Wi th the  ASR dea ct ivated,  the 
ESP check  light  comes  on,  see=> 
page 14. The  message ASR off 
appe ars  i n the  di sp la y as  wel l. On vehicles  wi th fro nt-whee l dr ive: 
deactivation  is possible  only  up  to  30  mph  (SO km/h)  for  safety 
reas ons.  Vehi cles  w ith  all -w heel  drive:  the  AS R can  be  deac tivated  at 
any  speed.  ..  
Page 287 of 368

_____________________________________________ C_h_ e_ c_k _in --= g=--- a_n_ d_ f_ i_ll _i_n __.g=-- -• 
Before  you c hec k anythi ng  in the  engine  compartment, 
alwa ys r ead  and  heed  all  WARNINGS==> & in "Working  in 
the  engine  compartment"  on 
page 277. 
- Turn  off  the  ignition. 
- Read the  engine  coolant  level from  the  coolant  expansion 
tank==> 
page 284, fig. 211. With  a cold  engine,  the 
coolant  level should  be  between  the  "min"  and  "max" 
markings . When  the  engine  is wa rm, the  level  may be 
sligh tly above the  "max" marking . 
The  locat io n  of  the  coolant  expansion  tank  can  be  seen  in the  engine 
compartment  ill ustration ~ 
page 278. 
To  obta in an  accurate  reading,  the  engine  must  be  sw itched  off. 
The  expans ion tank  in your  vehicle  is equ ipped  with  an electric  coolant 
level  sensor . 
When  the  coolan t level 
is too  low,  the warn ing light  in t he Au to-Che ck 
System ~ 
page 2 7 will  blink  until  you  add  coo lant  and  the  level  has 
bee n restored  to  normal.  Even though  the re  is an  elect ric coolan t 
level  sensor,  we  still  recommend  you  check  the  coolant  leve l from 
time  to  time . 
Coolant  loss 
Coolant  loss  may  ind icate  a leak in the  cooling  system.  I n the  event  of 
coo lant  loss,  the  cooling  system  should  be  inspected  immed iately  by 
yo ur au tho rized  A ud i dea le r. 
It is not  enough  mere ly  to add  coolant. 
In  a 
s e a le d system,  losses  can  occur  only  if the  bo iling  point  of  the 
coo lant  is exceeded  as  a  resu lt  of  overheating . 
0 Note 
Do not  add  any  type  of  radiator  leak  sealant  to  your  vehicle's  engine 
coo lant.  Add ing  radiator  repa ir fluid  may  adverse ly affect  the  func
tion  and  performance  of  your  cooling  system  and  could  result  in 
damage  not  covered  by your  New Vehicle  Limited  Warra nty. • 
Safety  first 
Adding  coolant 
Be very careful  when  adding  engine  coolant. 
B efore  you check a nything  in t he engine  compartment, 
always  read  and  heed  all  WARNINGS==> & in "Working  in 
the  engine  compartment"  on 
page  2 77. 
- Turn  off the  engine. 
- Let the  engine  cool  down . 
- Place a th ick rag  over the  coolant  expansion  tank 
==> 
page 284 , fig. 211 and carefully twist  t he cap  counter
clockw ise ==>& . 
- Add coolant . 
- Twist the  cap  on  again 
tightly . 
Replacement eng ine coolant must conform to exact spec ifications 
~ page 284, "Coolant".  Even  in an  emergency,  if  coolant  additive 
G 12++,  G12+  or  G12  is not  available,  do 
not use  a different  addi tive . 
Use  plain  water  instead  until  you  can  get  the  correct  additive  and  can 
restore  the  correc t  ratio.  This should  be  done  as  soon  as possible. 
If you  have  lost  a considerable  amount  of  coolant,  then  you  should 
add  co ld  antifreeze  and  cold  water  only  when  the  eng ine  is  co ld . 
Always  use 
new engine  coo lant  w hen  refilling. 
Do not  fill  coolant  above  the  "MAX" mark.  Excess  coolant  will  be 
forced  ou t th rough  the  p ress ure  relief  v alve in the  cap  when  the 
engine  becomes  hot . 
& WARNING 
• The cooling  sy stem  i s under pres su re  a nd  can get  very hot. 
Reduc e the  ri sk of  scalding  from  hot  coolant  by following  the se 
steps. 
-Tu rn off  the  engine  and  allow  it to  co ol d own .  _,. 
Vehicle care  Technical data  
Page 315 of 368

Tires  and  wheels  -_______________  _____.Effll 
than  the  size  indicated  on the  vehicle  placard  or tire  inflation  pressure 
label , you  sho uld  determine  the  proper  tire  infla tion  pressure  fo r 
those  tires.) 
As an  added  safety  feature,  your  vehicle  has  been  equipped  with  a tire  pressu re  monitoring  sys tem  (TPMS) that  illuminates  a  low  tire  pres 
sure  telltale  when  one  o r more  of your  t ires  is s ignificantly  under
inflated.  Accord ingly, when  the  low tire  pressure  tellta le  illumi nates, 
you  should  stop  and  check  your  tires  as  soon  as  possib le,  and  inflate 
them  to  the  proper  p ress ure.  D riving on a sign ificantly  under-inflated 
tire  causes  the  tire  to  overheat  and  can  lead  to  tire  fa ilure . Under
inflation  also  reduces  f uel  efficiency  and  tire  tread  life,  and  may 
affect  the  vehicle's  handling  and  stopping  ability . 
Please  note  that  the  TPMS is  not  a  substitute  for  proper  tire  mainte
nance,  and  it is the  d river's  responsibility  to  mainta in correct  tire 
pressure,  even  if under-inflation  has  not  reached  the  level  to  trigger 
ill umination  of  the  TPMS  low  tire  press ure  te lltale. 
Your vehicle  has  also  been  equipped  w ith  a TPMS malfunction  indi
cato r to  indica te when  the  system  is  not  operating  properly . The 
TP MS ma lf u nction  indicator  is combined  with  the  low  tire  p ress ure 
telltale.  When  the  system  detects  a  malfunct ion,  the  telltale  will 
fl ash  for  approximate ly one  minute  and  then  rema in continuously 
illuminated.  This  sequence  will  continue  upon  subsequent  vehicle 
sta rt-ups  as  long  as  the  malfunction  exists. 
When  the  ma lfunction  indicator  is  illum inated,  the  system  may  not 
be  able  to  de tect  or  signa l low  ti re  pressure  as  intended . TPMS 
ma lfunctions  may  occur  fo r a var iety  of  reaso ns,  includ ing  the  instal
lation  of  replacement  o r alternate  tires  or  wheels  on  the  vehi cle that 
prevent  the  T PMS from  functioning  properly . Always  check  the  TPMS 
ma lfunction  tellta le  after  replacing  one  or  more  tires  or  whee ls on 
yo ur vehicle  to  ensure  that  the  replacement  o r alte rnate  t ires  and 
wheels  allow  the  TPMS to  continue  to  funct ion  proper ly .• 
Vehicle  OP-eration 
App lies  to vehicles : wi th  t ire p ressu re mon it ori ng system 
Tire  pressure  indicator  appears 
The tire pressure  indicator  in the  instrument  cluster 
informs  you  if the  tire pressure  is too  low or if  there  is a 
system  malfunction. 
Fi g. 221  D is pl ay: 
un der infl ation 
wa rning 
Fi g. 2 22  Display : 
Sys tem  malfun ction 
Us ing  the ABS sensors,  the  tire pressure  monitor ing system  compares 
the  t ire tread  c ircumference  and  vibration  characteristics  of  the  ind i
vidual  tires . 
If the  pressure  decreases  in one  or  more  tires,  this  is indi -
cated  in the  instrument  cl uster  with  a warning  symbol  and  a 
message ~ fig.  221.  The  d river message  in the  display  goes  o ut  after 
5 seconds . The  driver  message  can  be  displayed  again  by p ressing  the 
!C HECK ] button.  If  on ly one  t ire  is affected,  the  display  will  ind icate 
its  position.  ._ 
Vehicle  care Do-it-yourselt service  iTechnical data  
Page 328 of 368

m.___F_ u_ s_e _s _ a _ n_d_ b_ u_ lb_ s _____________________________________________  _ 
(I) Tips 
You are  well  advised  to  keep  a  supply  of  spare fuses  in your  vehicle . 
Fuses  with  the  proper  ampere  ratings  are  available  at  your  Audi 
dealer. • 
Fuse  Location,  Instrument  Panel  left 
Fig.  23S  Fuse  pan el 
layout 
Some  of  the  equipment  items  listed  a re optiona l or  only  avai lable  on 
certain  mode l configurat ions. 
Note  that  the  following  t able  i s accu rate  at  the  time  of  going  to 
pre ss and  is  subject to  change.  In the  event  of  discrepancies,  the 
label  on the  in side of  the  cover alwa ys  takes  precedence. 
T he  power  seats  are  p rotected  by circuit br eaker s, which  a utomat i
cally  reset  after  a few  seconds  after  the  overload  has  been  remedied . 
No.  Equipment 
1  Not  use d 
2 Not  used 
3  Eng ine  management 
4  Oil level  sensor 
Amps 
s 
5 
.. 
No . Equipment 
5 
6 
7 
8 
9 
10 
11 
12 
1 3 
14 
1 5 
16 
17 
18 
1 9 
20 
21 
22 
23 
24 
25 
26 
27 
28 
Climate  control,  tire  pressure  mon itoring  sys 
tem 
Electronic  Stabilization  Program  (ESP),  clutch 
sensor 
Di agnost ic co nnector 
Homelink  control  unit 
A utom atic  dimming  in ter ior  m irr or 
Adaptive  Cruise  Control 
Not  used 
Diagnostic  connector 
Sw itch  module  stee ring  col umn 
Not  used 
I ns trumen t cluste r,  contro l modu le  Gatew ay 
Telephone,  cell  phone  Elect ronic  Stabilization  Program  (ESP) 
Headlight  electronics,  left-side 
Ra in s ensor 
Heated  washer  nozzles 
Se at  adjus tment  ( drive r) 
MMI  display 
Electromec hanical  park ing  brake 
Not  used 
N ot  used 
No t used 
No t used 
Not  used 
Amps 
5 
5 
5 
5 
5 
5 
10 
10 
10 
5 
10 
5 
5 
5 
1 0 
5 
5 
- 
Page 356 of 368

-Alphabetical  inde x ------',.__ ___________________________________  _ 
Driv ing  messages  ...... ...... .. .. .. ..  24 
Dr iv ing  safely  . . . . .  . .  . .  . .  . .  . . . . . .  . . .  1 7 4 
Dr iving  through  water  ... ... ... .. .. ..  250 
Dr iv ing time  .. ............ ..........  34 
Duplica te  key  . .... .... .. .. .. ........  3 7 
Dust fi lter 
Climate  controls  .. .. .. .... .. .. . ...  96 
DVD player  for  navigation  system  . .. . .. .  86 
Dynam ic shift  program  ............ ..  156 
E 
Easy entry  feature  . .. .. .. .. .... .....  108 
Electric  seat adjustment 
See Power seat  ...................  76 
Electromechanical  parking  brake  Emergency braking  . ... .. .. .... .. .  11 5 
Ma lf u nct ion  . . . . . . . . . . . . .  . . . . . .  . .  115 
Operation  .  . . . . . . . . . . . . . . . . . . . . .  113 
Park ing  .................... .. ..  114 
Releasing and app ly ing  ... .. ... .. ..  113 
Starting  off  w ith  a t railer  ......... .  115 
Wa rning/ind icator  lights  . .. .... .. ..  17 
Electronic  differential  lock  (EDL)  How the  system  works  ... .........  241 
Warning/ind icator  lights  . ..........  17 
Electroni c immobili ze r  ... .... .. .. .. .. .  40 
Electronic  powe r control 
(EPC) war ning/ indicato r light  .. .. ... . 14 
E lectronic  speed  limiter  ........ .... .. .  23 
Ele ctro nic s tabiliza tion  p rogram  ( ESP) 
How t he system  wor ks  ... .........  2 40 
W arning/ind icator  lights  . ..........  14  Emergency braking 
..... .. .. .. .. .. ..  115 
Emergency closing  Power su nroof  ... ... .. .. . ... ...  55,  56 
Eme rgency flasher  ................ ...  61 
Wa rning/ind icator  l ights  . .. .. .. .. ..  15 
Emergency  locking  of  doors  . .. .. .. .. ..  45 
E mergency  sta rt ing  .... ..... ... .. .. .  331 
Emergency towing  ..................  334 
Energy management  ................  247 
Battery  power  .. .. .. .. .. .... .....  248 
Dr iver not ification  ............... . 248 
Engine  Compartment  . ... .. .. .. .. .. .. ...  2 78 
Coolant  .. ... .. .. .. .. .... .. .. .. .  284 
Hood  . ... .. .. .. .... ... .. .. .. .. .  276 
Starting  ....... .. .. ........ . 108,  109 
Starting  with  jumpe r cab les  . .. .... . 331 
Stopping  ...... .............. ...  110 
E ngine  compa rtment 
Sa fety  instructions  . .... ... .. .. .. .  277 
Working  the  eng ine compartment  ..  277 
En gine  coolant  system  ........ .. .. .. .  28 4 
Add ing coolant  ................. . 285 
C hecking  coo la nt  level  . ..... .. .. ..  28 4 
Checking the  engine  coo lant  level  . ..  284 
Ma lfu nction  ... .. ..... ..... .... .. .  27 
Radiator  fan  ....... .. ... . .. .. ...  286 
E ngine  coo lant  tempe rature 
T emperat ure gauge  ............. .. .  8 
Engine data  ....... ...... .... .. .....  341 
Engine hood  Closing  .... ..... ..... .... .. .. .. .  2 77 
How to  re lease the  hood  ..... .. ... .  2 76  Engine oil 
.. ... .... ... .. . ... ... .. ..  279 
Add ing  .............. .... ... .. ..  282 
Add itives  .................. .... .  282 
Changing  .. ..... .......... .. .. ..  283 
Checking the  engine  oil  leve l ..... ..  281 
Indi cat io ns and  conditions  requiring  extr a 
check ing  . .. .. .. .. .............  281 
Oil  consumption  .... .............  280 
Oil  grades  . .. .. .... ..... ....... .  279 
Recommended  oil  check  intervals  ...  281 
Specification  and viscosity  ..... .. ..  279 
Engine oil  leve l .... .. .. ............. . 31 
E ngine  oil  p ress ure 
Mal fu nct ion  .. .. .. .. .... ..........  28 
Engine oil  sensor defect ive  . ...... ... ..  31 
Engine speed limitation  ....... ... .. .. .  32 
E nvironmen t 
Bre ak-in  per iod  ...... ...... .. .. ..  249 
Ca taly tic  converte r .. .... .........  250 
Disposing  o f you r vehi cle bat tery  ....  292 
Driving  at  hig h speeds  ..... ... . ...  252 
Driving  to  minimize  poll ution  and noise  . . 
2 51 
Fuel  .. .. .... ....... ...... .... ..  273 
F ue l economy  .. .. .. ....... .. .. ..  251 
Leaks unde r yo ur  vehicle  ... .. .. .. .  2 77 
Lett ing the  vehicle  stand  and warm  up  .. . 
252 
Proper disposa l of  dra ined brake fluid  287 
Prope r disposal  of  dra ined engine  coo la nt 
285 
Proper disposal  of  drained  engine  oil  282,  283 
Recy cling  used e ng ine o il ..........  282