warning light AUDI TT COUPE 2009 Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2009, Model line: TT COUPE, Model: AUDI TT COUPE 2009Pages: 316, PDF Size: 71.16 MB
Page 132 of 316

___ S_a_ f_ e_ t-= y_ b_e_ l_ t _s  _______________________________________________  _ 
To  provide  maximum  protection,  safety  belts  must  always 
be  positioned  correctly  on  the  wearer's  body. 
Adjust  the  front  seat  and  head  restraint  properly 
=> page  69,  "General  recommendations ". 
Hold  the  belt  by  the  tongue  and  pull  it  evenly  across  the 
chest  and  pelvis=>&. 
- Insert  the  tongue  into the  correct  buckle  of  your  seat 
until  you  hear  it  latch  securely => page 
129, fig.  106. 
Pull  on  the  belt  to make  sure  that  it is  securely  latched  in 
the  buckle. 
Automatic  safety  belt  retractors 
Every safety  belt  is equipped  with  an automatic  belt  retractor  on the 
shoulder  belt.  This  feature  locks the  belt  when  the  belt  is pulled  out 
fast,  during  hard  braking  and  in  an  accident . The  belt  may  also  lock 
when  you  drive  up  or  down  a steep  hill  or  through  a sharp  curve. 
During  normal  driving  the  belt  lets you  move  freely. 
Safety  belt  pretensioners 
The  safety  belts  on  the  front  seats  are  equipped  with  a  belt  preten
sion  er that  helps  to  tighten  the  safety  belt  and  remove  slack  when 
the  pretensioner  is activated.  The function  of  the  pretensioner  is 
monitored  by  a warning  light:::::, 
page 78, "Airbag  system 
t!A (USA  models) /!.ir (Canada  models)". 
Switchable  locking  feature 
Every  safety  belt  except  the  one  on  the  driver  seat  is equipped  with 
a switchable  locking  feature  that 
must be  used  when  the  safety  belt 
is used  to  attach  a child  seat.  Be sure  to  read  the  important  informa 
tion  about  this  feature:::::, 
page  168. 
& WARNING 
Improperly  positioned  safety  belts  can  cause  serious  injury  in  an 
accident  :::::, 
page  130, "Safety belt  position". 
•  Safety  belts  offer  optimum  protection  only  when the seat  back 
is  upright  and  belts  are properly  positioned  on the  body. 
•  Never  attach  the  safety belt  to  the  buckle  for  another seat. 
Attaching  the  belt  to  the wrong  buckle  will  reduce  safety belt 
effectiveness  and can cause  serious  personal  injury. 
•  A passenger  who  is  not  properly  restrained  can  be  seriously 
injured  by the  safety  belt  itself  when  it moves from  the stronger 
parts  of the  body  into  critical  areas  like the  abdomen. 
•  Always  lock the  convertible  locking  retractor  when  you are 
securing  a  child  seat  in the vehicle:::::, 
page  170.  • 
Safety belt  position 
Correct  belt  position  is  the  key  to  getting  maximum 
protection  f ram  safety  belts. 
Fig.  107  Head restraint 
and  safety  belt  posi
tion  as  seen from  the 
side 
Use the  height  adjustment  to  change  the  position  of  the  shoulder 
straps  of  the  front  seat  safety  belts. 
~  
Page 139 of 316

__________________________________________________ A_ i_ r _b _a...; g::- s_ y=--- s_t _e _m  __ !II 
Child  restraints  on  the  front  seat  -some 
important  things  to  know 
- Be sure  to  read  the  important  information  and  head  the 
WARNINGS  for  important  details  about  children  and 
Advanced  Airbags :=> 
page 157. 
Even though  your  vehicle  is  equipped  with  an  Advanced  Airbag 
System,  make  certain  that  all  children,  especially  those  12 years  and 
younger,  always  ride  in  the  back  seat  properly  restrained  for  their  age and  size . The airbag  on the  passenger  side  makes  the  front  seat 
a potentially  dangerous  place  for a child  to  ride . The front  seat  is not 
the  safest  place  for  a child  in  a forward -facing  child  safety  seat.  It 
can  be a very  dangerous  place  for  an  infant  or  a child  in  a rearward 
facing  seat. 
The Advanced  Airbag  System  in  your  vehicle  has  been  certified  to 
comply  with  the  Requirements  of  United  States  Federal  Motor 
Vehicle  Safety  Standard  208 as applicable  at  the  time  your  vehicle 
was  manufactured. 
The  Standard  requires  the  front  airbag  on  the  passenger  side  to  be 
turned  off  ("suppressed")  if  a child  up to  about  one  year  of  age 
restrained  in  one  of  the  rear-facing  or  forward-facing  infant 
restraints  listed  in  Federal  Motor  Vehicle  Safety  Standard  208 with 
which  the  Advanced  Airbag  System  in your  vehicle  was  certified  has  been  installed  on  the  front  passenger  seat.  For a listing  of  the  child 
restraints  that  were  used  to  certify  compliance  with  the  US Safety 
Standard => 
page 159. 
The PASSENGER AIR  BAG OFF light in the  instrument  panel  tells  you 
when  the  front  Advanced  Airbag  on  the  passenger  side  has  been 
turned  off  by  the  electronic  control  unit. 
Each time  you  turn  on  the  ignition,  the 
PASSENGER AIR  BAG OFF 
light  will  come  on  for  a few  seconds  and: 
•  will  stay  on  if  the  front  passenger  seat  is not  occupied, 
Controls  and  equip
ment  Safety  first 
Vehicle  operation 
• will  stay  on  if  there  is a small  child  or  child  restraint  on  the  front 
passenger  seat, 
•  will  go  off  if  the  front  passenger  seat  is  occupied  by  an  adult  as 
registered  by the  weight-sensing  mat=> 
page 146, "Monitoring  the 
Advanced  Airbag  System" . 
The 
PASSENGER AIR BAG OFF light  comes  on  when  the  control  unit 
detects  a total  weight  on  the  front  passenger  seat  that  requires  the 
front  airbag  to  be  turned  off. 
If  the  total  weight  on  the  front  passenger  seat  is  more  than  that  of 
a typical  1 year-old  child  but  less  than  the  weight  of  a small  adult, 
the  front  airbag  on  the  passenger  side  can  deploy (the 
PASSENGER 
AIR  BAG OFF 
light  does  not  come  on).  If the PASSENGER AIR  BAG 
OFF 
light  does  not  come  on,  the  front  airbag  on  the  passenger  side 
has  not  been  turned  off  by the  electronic  control  unit  and  can 
deploy  if  the  control  unit  senses  an  impact  that  meets  the  condi
tions  stored  in  its memory. 
For example,  the  airbag  may  deploy  if: 
• a small  child  that  is heavier  than  a typical  1 year -old  child  is  on 
the  front  passenger  seat  (regardless  of  whether  the  child  is in  one 
of  the  child  safety  seats  listed=> 
page 159), or 
•  a child  who  has  outgrown  child  restraints  is  on  the  front 
passenger  seat. 
If  the  front  passenger  airbag  is turned  off,  the 
PASSENGER AIR  BAG 
OFF 
light  comes  on  in  the  instrument  cluster  and  stays  on. 
The  front  airbag  on  the  passenger  side  may 
not deploy  (the 
PASSENGER AIR  BAG OFF light does  not  illuminate  and  stay  lit) even 
if a small  adult  or teenager,  or a passenger  who  is not  sitting  upright 
with  their  back against  a non-reclined  backrest  with  their  feet  on  the 
vehicle  floor  in  front  of  the seat  is on  the  front  passenger  seat 
=> 
page 116, "Proper  seating  position  for  the  driver". 
If  the  front  passenger  airbag  deploys,  the  Federal Standard  requires 
the  airbag  to  meet  the  "low  risk"  deployment  criteria  to  reduce  the  risk  of  injury  through  interaction  with  the  airbag . "Low  risk"  deploy
ment  occurs  in  those  crashes  that  take  place  at  lower decelerations 
I), 
Vehicle  care  Do-it-yourself  service  Technical  data  
Page 140 of 316

___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________  _ 
as  defin ed  i n th e  el ectron ic  contro l u n it=>  page 147 , "PASSE NGER 
AI R BAG  OFF lig ht". 
A lwa ys  rem em ber,  a c hild  safet y se at  or  infant  carr ier  installe d on 
the  front  seat  may  be  str uck  and  k nocked  o ut  of  po sition  by  t he 
rap id ly  in fla ting  passe nger's air bag  in  a fron tal colli sion . The  airb ag 
cou ld  great ly  re duce  the  effectivene ss of  the  ch ild  restrain t and 
e ve n  seri ous ly  injure  the  chi ld  dur ing  in flatio n. 
For th is  reason,  and  beca use  the  bac k seat  is  the  safest  plac e for 
chi ldren  -wh en  prop erly  rest rained  acc ording  to  th eir  age  and  size 
- we  strong ly recommend  that  ch ildren  a lways  sit  in  the  bac k se at 
=> p age 157, "Ch ild  Safe ty ". 
& WARNING 
A  child  in  a rearward -facing  child  safety  seat  installed  on  the  front 
passenger  seat  will  be  ser iously  injured  and  can  be  killed  if  the 
front  airbag  inflates  - even  with  an  Advanced  Airbag  System . 
•  The inflating  airbag will hit  the  child  safety  seat  or  infant 
carrier  with  great  force  and  will  smash  the  child  safety  seat  and 
child  against  the  backrest , door  or  roof . 
•  Always  install  rear -facing  child  safety  seats  on  the  rear  seat . 
•  If  you  must  install  a  rearward  facing  child  safety  seat  on  the 
front  passenger  seat  because  of  exceptional  circumstances  and 
the  PASSENGER AIR  BAG OFF light  does  not  come  on  and  stay  on , 
immediately  install  the  rear-facing  child  safety  seat  in  a  rear 
seating  position  and  have  the  airbag  system  inspected  by  your 
Audi  dealer . 
•  Forward-facing  child  safety  seats  installed  on  the  front 
passenger's  seat  may  interfere  with  the  deployment  of  the  airbag 
and  cause  serious  personal  injury  to  the  child . 
& WARNING 
If,  in  exceptional  circumstances, you  must  install  a forward-facing 
child  restraint  on  the  front  passenger's  seat: 
& WARNING  (continued) 
•  Always  make  sure  the  forward-facing  seat  has  been  designed 
and  certified  by  its  manufacturer  for  use  on  a front  seat  with  a 
passenger  front  and  side  airbag . 
•  Never  put  the  forward-facing  child  restraint  up  against  or  very 
near  the  instrument  panel. 
•  Always  move  the  passenger  seat  into  its  rearmost  position  in 
the  seat's  fore  and  aft  adjustment  range,  as  far  away  from  the 
airbag  as  possible  before  installing  the  forward-facing  child 
restraint.  The  backrest  must  be  adjusted  to  an  upright  position . 
•  Make  sure  that  the  PASSENGER AIR  BAG OFF light  comes  on 
and  stays  on  all  the  time  whenever  the  ignition  is  switched  on. 
& WARNING 
To reduce  the  risk  of  serious  injury , make  sure  that  the  PASSENGER 
AIR BAG OFF light will be displayed  whenever  a child  restraint  is 
installed  on  the  front  passenger  seat  and  the  ignition  is  switched 
on. 
•  If the  PASSENGER AIR  BAG OFF light  does  not  stay  on , perform 
the  checks  described=> 
page 146, "Monitoring  the  Advanced 
Airbag  System" . 
•  Take the  child  restraint  off  the  front  passenger  seat  and  install 
it  properly  at  one  of  the  rear  seat  positions  if  the  PASSENGER AIR 
BAG OFF light  does  not  stay  on. 
•  Have the  airbag  system  inspected  by  your  Audi  dealer  immedi 
ately . 
•  Always  carefully  follow  instructions  from  child  restraint  manu 
facturers  when  installing  child  restraints . 
& WARNING 
If,  in  exceptional  circumstances,  you  must  install  a forward  or 
rearward-facing  child  restraint  on  the  front  passenger's  seat :  
Page 143 of 316

__________________________________________________ A_ i_ r _b _a...; g::- s_ y=--- s_t _e _m  __ lllll 
Whe n a  person  is  detected  on  the  front  passenger  seat,  weighing 
more  than  the  to tal  weight  of  a  child  t hat  is  about  1 year  old 
restrained  in  one  of  the  rear-facing  or  forward -facing  infant 
restraints  (listed  in  Federa l Motor  Vehicle  Safety  Standard  208 with 
which  the  Advanced  Airbag  System  in  your  vehicle  was  certified),  the  front  airbag  on  the  passenger  side  may  or  may  not  deploy . 
The 
PA SSENGER  AIR  BAG  OFF light  comes  on  when  the  e lectronic 
control  unit  detects  a total  weight  on  the  front  passenger  seat  that 
requires  the  front  a irbag  to  be turned  off . If the 
PA SSENGER  AIR  BAG 
O FF 
light  does  not  come  on,  the  front  airbag  on  the  passenger  side 
has  not  been  tu rned  off  by  the  contro l u nit  and  can  dep loy  if  the 
control  unit  senses  an  impact  that  meets  the  conditions  stored  in  its 
memory . 
I f  the  total  weight  on  the  front  passenger  seat  is  more  than  that  o f 
a typical 
1 year -old,  but  less  than  the  we ight  of  a small  adult,  the 
front  airbag  on  the  passenger  side  may  dep loy  (the 
PA SS ENGER AIR 
BAG  OFF 
l ight  does  not  come  on). 
For example , the airbag may deploy if : 
• a small  ch ild  that  is  heavier  than  a typ ical 1 year-o ld  child  is  on 
the  front  passenger  seat  (regardless  of  whether  the  child  is  in  one 
of  the  child  sa fety  seats  listed ~ page 
159), 
•  a child  who  has  outgrown  child  res traints  is  on  the  front 
passenger  seat. 
I f  the  front  passenger  airbag  is turned  off,  the 
PASSENGER  AIR  BAG 
O FF 
light  in  the  cen ter  of  the  instrument  panel  wi ll co me  on  and  stay 
on . 
T he  front  airbag  on  the  passenge r side  may 
not deploy  (the 
PASS ENGER AIR  BAG OFF light  does  not  illuminate  and  stay  lit)  if: 
•  a small  adult  or  teenager  is  on  the  front  passenger  seat 
•  a  passenger  who  is  not  sitting  upright  with  their  back  against  a 
non -reclined  backrest  with  their  feet  on  the  vehicle  floor  in  front  of 
the  seat  is  on  the  front  passenger  seat. 
I f the  front  passenger  airbag  dep loys,  the  Federal  Standard  requires 
the  airbag  t o meet  the  "low  risk"  deployment  criteria  to  help  reduce 
Controls  and  equip ment  Safety  first  Vehicle  operation  the  risk  of  injury  through  interaction  with  the  airbag
. "Low  risk" 
dep loyment  occurs  in  those  crashes  that  ta ke  place  at  l ower  decel 
erations  as  defined  in  the  electronic  control  unit~ page 
146. 
Alway s remembe r:  Even  though  your  vehicle  is  equipped  with 
Advanced  Airbags,  the  safes t place  for  chi ldren  is  properly 
restrained  on  the  back  seat.  Please  be  sure  to  read  the  important 
informat ion  in  t he sections  tha t follow  a nd  be sure  to  heed  a ll of  the 
WARNINGS. 
& WARNING 
To reduce the  risk of  injury  when  an  airbag  inflates , always  wear 
s afety  belts  prope rly. 
•  If  you are unrestrained , leaning forward , sitt ing s ideways  or out 
of  position  in any w ay, your  risk of  injury  i s mu ch higher . 
•  You will  al so receive  se riou s injurie s and  could  even be  killed  if 
you  are  up  against  the  airbag  or too  clo se t o it  when  it  inflate s -
even with  an Advanced Airbag => page 135 . 
& WARNING 
A child  in  a rearward -facing  child  safety  seat  in stalled  on  the  front 
pa ssenge r seat  will  be  ser iou sly  injured  and  can  be  killed  if  the 
front  airb ag inflate s -even  with  an  Advanced  Airbag  System . 
•  Although  the  Advan ced  Airbag  S ystem  in  your  vehicle  is 
de signed  to  turn  off  the  front  airbag  when  a  rearward -fa cing  child 
restraint  h as  been  in stalled  on  the  front  pa ssenger  seat ,  nobod y 
c an  ab solutely  guarantee  that  deployment  i s impo ssible in  all 
c onceivable  situations  that  may  happen  during  the  useful  life  of 
your  vehicle . 
•  The  inflating  airbag  will  hit  the  ch ild  s afety  seat  or  inf ant 
c arrier  with  great  force  and  will  smash  the  chi ld  safety  seat  and 
c hild  ag ains t  the  ba ckre st,  door , or  roof . 
•  Always  in stall  rearward -facing  child  re straint s in  the  back  seat  .... 
Vehicle  care  Do-it-yourself  service  Technical  data  
Page 144 of 316

___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________  _ 
& WARNING (continued) 
• If you  must  install  a  rearward  facing  child  safety  seat on the 
front  passenger  seat because  of  exceptional  circumstances  and 
the  PASSENGER AIR BAG OFF light  does not  come  on and  stay  on, 
immediately  install  the  rear-facing  child  safety  seat  in a  rear 
seating  position  and  have the  airbag  system  inspected  by your 
Audi  dealer. 
& WARNING 
If, in exceptional  circumstances,  you must  install  a forward-facing 
child  restraint  on the  front  passenger's  seat: 
•  Always  make  sure the  forward -facing  seat  has  been  designed 
and  certified  by  its  manufacturer  for  use on  a front  seat  with  a 
passenger  front  and  side  airbag. 
•  Never  put  the  forward-facing  child  restraint  up  against  or very 
near the  instrument  panel. 
• Always  move  the  passenger  seat  into  its  rearmost  position  in 
the  seat's  fore  and  aft  adjustment  range,  as far  away  from  the 
airbag  as  possible,  before  installing  the  forward-facing  child 
restraint . The  backrest  must  be  adjusted  to  an  upright  position. 
•  Make  sure that  the  PASSENGER AIR BAG OFF light  comes  on 
and  stays  on all the  time  whenever  the  ignition  is switched  on.  • 
Advanced  Airbag  System  components 
The front  passenger  seat  in  your  vehicle  has a  lot of  very  important 
parts  of  the  Advanced  Airbag  System  in  it. These  parts  include  the 
weight-sensing  mat, sensors,  wiring,  brackets,  and  more.  The func
tion  of the  system  in  the front  passenger  seat  is  checked  by the elec 
tronic  control  unit  when  the  ignition  is on.  The control  unit  monitors 
the  Advanced  Airbag  System  and  turns  the airbag  indicator  light on 
when  a malfunction  in  the  system  components  is detected.  The 
function  of the  airbag  indicator  light is  described  in greater  detail  below
. Because  the  front  passenger  seat  contains  important parts 
of  the  Advanced  Airbag  System,  you  must take  care  to  prevent  it 
from  being  damaged.  Damage to  the  seat  may  prevent  the 
Advanced  Airbag  for  the  front  passenger  seat  from  doing its  job  in 
a crash . 
The  front  Advanced  Airbag  System  consists  of  the 
following: 
• Crash  sensors  in the  front  of  the  vehicle  that  measure  vehicle 
acceleration/deceleration  to provide  information  to  the  Advanced 
Airbag  System  about  the  severity  of  the  crash. 
•  An  electronic  control  unit,  with  integrated  crash  sensors  for front 
and  side  impacts.  The  control  unit "decides"  whether  to  fire  the 
front  airbags  based  on  the information  received  from  the crash 
sensors.  The control  unit  also  "decides"  whether  the safety  belt 
pretensioners  should  be  activated. 
•  An  Advanced  Airbag  with  gas  generator  for the  driver  inside  the 
steering  wheel  hub . 
•  An  Advanced  Airbag  with  gas  generator  inside  the instrument 
panel  for  the  front  passenger. 
•  A weight-sensing  mat  under the upholstery  padding  of  the  front 
passenger  seat  cushion  that measures  the  total  weight  on  the  seat. 
The  information  registered  is  sent continuously  to  the  electronic 
control  unit  to regulate  deployment  of  the front  Advanced  Airbag  on 
the  passenger  side. 
•  An  airbag  monitoring  system  and  indicator  light  in the  instru 
ment  cluster ~ 
page 146. 
•  The PASSENGER AIR BAG OFF light  comes  on  and  stays  on  in the 
center  of  the  instrument  panel~ 
page 147, fig. 113 and  tells  you 
when  the  front  Advanced  Airbag  on  the  passenger  side  has  been 
turned  off. 
•  A sensor  below  the  safety  belt  latch for  the  front  seat  passenger 
to  measure  the  tension on  the safety belt. The  tension  on  the  safety 
belt  and  the  weight  registered  by the  weight -sensing  mat  help  the 
control  unit  "decide"  whether the  front  airbag  for  the front  ..  
Page 145 of 316

__________________________________________________ A_ i _r_b _a...; g::-- s_ y =--- s_t _e _m __ ftllll 
passeng er  seat  shou ld  be  turn ed off  or  not~  page  137,  "Ch ild 
restr aint s  o n the  fro nt seat  - some  impor tant  thin gs  to know". 
•  A  sensor  in  the  safety  belt  latch  fo r the  d rive r and  for  the  front 
s e at  pass enger th at  s enses wh ether  th at  safe ty  belt  i s la tch ed o r not 
and  transmits  this  information  to  the  e lectronic  contro l unit. 
& WARNING 
Damage  to  the  front  passenger  seat  can  prevent  the  front  airbag 
from  working  properly . 
•  Improper  repair  or  disassembly  of  the  front  passenger  and 
driver  seat  will  prevent  the  Advanced  Airbag  System  from  func 
tioning  properly . 
•  Repairs  to  the  front  passenger  seat  must  be  performed  by  qual 
ified  and  properly  trained  workshop  personnel . 
•  Never  remove  the  front  passenger  or  driver  seat  from  the 
vehicle. 
•  Never  remove  the  upholstery  from  the  front  passenger  seat . 
•  Never  disassemble  or  remove  parts  from  the  seat  or  disconnect 
wires  from  it. 
•  Never  carry  sharp  objects  in  your  pockets  or  place  them  on the 
seat . If the  weight-sensing  mat  in  the  passenger  seat  is  punctured 
it  cannot  work  properly. 
•  Never  carry  things  on  your  lap  or  carry  objects  on  the 
passenger  seat . Such  items  can  increase  the  weight  registered  by 
the  weight-sensing  mat  and  send  the  wrong  information  to  the 
airbag  control  unit . 
•  Never  store  items  under  the  front  passenger  seat . Parts  of  the 
Advanced  Airbag  System  under  the  passenger  seat  could  be  damaged , preventing  them  and  the  airbag  system  from  working 
properly. 
•  Never  place  seat  covers  or  replacement  upholstery  that  have 
not  been  specifically  approved  by  Audi  on  the  front  seats. 
Controls  and  equip ment  Safety  first 
Vehicle  operation 
& WARNING  (continued) 
•  Seat  covers  can  prevent  the  Advanced  Airbag  System  from 
recognizing  child  restraints  or  occupants  on  the  front  passenger 
seat  and  prevent  the  side  airbag  in  the  seat  backrest  from 
deploying  properly. 
•  Never  use  cushions,  pillows,  blankets  or  similar  items  on  the 
front  passenger  seat.  The  additional  padding  will  prevent  the 
weight-sensing  mat  in  the  seat  from  accurately  registering  the 
child  restraint  or  person  on  the  seat  and  prevent  the  Advanced 
Airbag  System  from  functioning  properly . 
•  If  you  must  use  a child  restraint  on  the  front  passenger  seat 
and  the  child  restraint  manufa cturer's  instructions  require  the  use 
of  a  towel , foam  cushion  or  something  else  to  properly  position 
the  child  restraint,  make  certain  that  the  PASSENGER AIR BAG OFF 
light  comes  on  and  stays  on  whenever  the  child  restraint  is 
installed  on  the  front  passenger  seat. 
•  If the  PASSENGER AIR BAG OFF light  does  not  come  on  and  stay 
on , immediately  install  child  restraint  in  a  rear  seating  position 
and  have  the  airbag  system  inspected  by  your  Audi  dealer.  • 
How  the  Advanced  Airbag  System 
components 
work together 
The front  Advanced  Airbag  System  and  the  side airbags  suppl ement 
the  protection  offe red  by  t he front  t hree -point  safety  bel ts with 
pretens ioners  and  load  limiters  and  the  ad justable  head  restraints 
to  help  reduce  the  risk  of  in jury  in  a wide  range  of  accident  and 
c ras h situati ons.  Be sure  to  read  t he  impo rtant  inf ormatio n abou t 
safety  and  heed  the  WARNI NGS in  th is chapter. 
D ep loym ent  of the A dva nce d Ai rbag  Sy stem and  the  activati on  of 
th e safety  be lt  pretension ers  depend  on  the  decel eration  measur ed 
b y  the  c ra s h  sens ors  and  regis te re d  by  th e electr onic  control  unit. 
C rash  severity  depends  on  speed  and  decel eration  as we ll  as t he 
mass  and  s tiff ness  of  the  veh ic le  or object  in vo lved  in the  crash. 
9J. 
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Page 146 of 316

___ A_ ir_b _a_ g;:::;_ s--:.. y_s _t _e _m _________________________________________________  _ 
When  the  electronic  control  unit  registers  a low severity  crash  and 
th e safety  belt  is  being used,  the  airbag  will  not  deploy. If the  safety 
belt  is not  being  used,  the  first  stage  deploys,  followed  by  the 
second  stage after  a  much later  time  in  the  crash  sequence. 
If  the  electronic  contro l unit  registers  a crash  of  medium  severity, 
the  first  stage  of  the  airbag  deploys  followed  by the  second  stage  at 
a  much  later  time  in  the crash  sequence  -regardless  of  whether  the 
safety  belt  is  being  used  or  not . In  higher  severity  crashes  as regis
tered  by the  e lectronic  contro l unit,  both  the first  and  second  stages 
deploy  almost  at  the  same  time. 
On the  passenger  side,  regardless  of  safety  belt  use, the airbag  will 
be  turned  off  if  the  weight  on  the  passenger seat is  less  than  the 
amount  programmed  in the  electronic  control  unit . The front  airbag 
on  the  passenger  side will also  be turned  off  if one  of  the  child 
safety  seats  that  has  been  certified  under  Federal  Motor  Vehicle 
Safety  Standard  208  has been  recognized  on the  seat.  The 
PASSENGER  AIR  BAG OFF light  comes  on  and  stays  on  to  tel l you 
when  the  front  Advanced  Airbag  on  the passenger  side  has  been 
turned  off~ 
page 137, "Child restraints  on  the  front  seat  -some 
important  things  to  know". 
& WARNING 
To reduce  the  risk  of  injury when  an  airbag  inflates, always  wear 
safety  belts  properly . 
•  If you are unrestrained , leaning forward , sitting  sideways  or out 
of  position  in any way,  your  risk of  injury is much  higher . 
•  You will  also  receive serious  injuries  and could  even be killed  if 
you  are up  against  the  airbag or too close to  it when  it  inflates  -
even  with an Advanced  Airbag~ 
page  135 . • 
More  important  things  to  knovv  about  front 
airbags 
Fig . 112  Inflated  front 
airbags 
Safety  belts  are  important  to  help  keep  front  seat  occupants  in  the 
proper  seated position  so that  airbags  can  unfold properly  and 
provide  supp lemental  protection  in  a fronta l collision. 
The  front  airbags  are  designed  to  provide  additional protection  for 
the  chest  and  face  of  the  driver  and  the  front  seat  passenger  when: 
•  safety  be lts  are  worn  properly, 
•  the  seats  have  been  positioned  so that  the  occupant  is  properly 
seated  as far  as  possible from the airbag, 
•  and  the  head  restraints  have  been  properly  adjusted. 
Because  airbags  inflate  in  the blink  of an eye with  great  force,  things 
you  have  on  your  lap  or  have placed  on  the  seat  cou ld  become 
dangerous  projectiles,  and  be  pushed  into you  if  the  airbag  inflates . 
When  an  airbag  deploys,  fine  dust is released.  This  is normal  and  is 
not  caused  by a fire  in  the  vehic le.  This  dust  is made  up  most ly of  a 
powder  used  to  lubricate the airbags  as  they  deploy.  It  could irritate 
skin. 
It  is  important  to  remember  that  while  the  supplemental  airbag 
system  is designed  to  reduce  the  likelihood  of  serious  injuries,  other 
injuries,  for  example  swelling,  bruising  and  minor  abrasions,  can 
also  happen  when  airbags  inflate . Airbags  do  not  protect  the  arms ._,  
Page 147 of 316

Airbag  system 111111 
---------------------------------------------=---='------
or  the  low er  parts  of  the  body.  Front  airba gs  only  suppl eme nt  the 
th ree  point  safe ty  belt s  i n so me  frontal  co lli sio ns  in  which  t he 
veh ic le dece lerat ion  is  h igh  enou gh to  deploy  th e airbags. 
Front  airbags will not  deploy: 
•  if  the  ignition  is  switched  off  when  a crash  occurs, 
•  in  s ide  collisions , 
•  i n rea r- e nd  c ollisions , 
•  in  ro llovers, 
•  when  th e cras h  d eceler ation  m easured  b y th e  a irba g sys te m  i s 
less  than  the  minimum  threshold  needed  for  airbag  dep loyment  as 
r egi stere d  by  the  ele ctronic control  u nit. 
The  front  passenger  airbag will also  not  deploy : 
•  when  the fron t  passenger  s eat  i s not  o ccupied, 
•  when  the  weight  o n th e front  pass enger  seat  as  se nsed  by  the 
Ad vanced  Ai rbag  S ystem  indi cates  tha t  th e front  airba g  on  the 
pas senger  side  has to  be tu rned off  b y the  e lectronic  cont ro l unit 
(th e PASSENGER AIR  BAG OFF l ig ht  co me s  on  and  sta y s  on ). 
& WARNING 
Sitting  in the  wrong  position  can  increase  the  risk  of  ser ious  injury 
in  crashes . 
•  To reduce  the  risk  of  injury  when  the  airbags  inflate , the  driver 
and  passengers  must  always  sit  in  an  upright  position , must  not 
lean  against  or  place  any  part  of  their  body  too  close  to  the  area 
where  the  airbags  are  located . 
•  Occupants  who  are  unbelted , out  of  position  or  too  close  to  the 
airbag  can  be  seriously  injured  by  an  airbag  as  it  unfolds  with 
great  force  in  the  blink  of  an  eye~ page  137. 
Controls  and  equip ment  Safety  first 
Vehicle  operation 
& WARNING 
A child  in  a rearward-facing  child  safety  seat  installed  on  the  front 
passenger  seat  will  be  seriously  injured  and  can  be  killed  if  the 
front  airbag  inflates  - even  w ith  an  Advanced  Airbag  System . 
•  The  inflating  airbag  will  hit  the  child  safety  seat  or  infant 
carrier  with  great  force  and  will  smash  the  child  safety  seat  and 
child  against  the  backrest , center  arm  rest , door  or  roof. 
•  Always  install  rear-facing  child  safety  seats  on  the  rear  seat . 
•  If  you  must  install  a  rearward  facing  child  safety  seat  on  the 
front  passenger  seat  because  of  exceptional  circumstances  and 
the  PASSENGER AIR  BAG OFF light  does  not  come  on  and  stay  on,  immediately  install  the  rear-facing  child  safety  seat  in  a  rear 
seating  position  and  have  the  airbag  system  inspected  by  your 
Audi  dealer . 
& WARNING 
Objects  between  you  and  the  airbag  will  in crease  the  risk  of  injury 
in  a crash  by  interfering  with  the  way  the  airbag  unfolds  or  by 
being  pushed  into  you  as the  airbag  inflates . 
•  Never  hold  things  in your  hands  or  on  your  lap  when  the  vehicle 
is  in  use . 
•  Never  transport  items  on  or  in  the  area  of  the  front  passenger 
seat.  Objects  could  move  into  the  area  of  the  front  airbags  during 
braking  or  other  sudden  maneuver  and  become  dangerous  projec
tiles  that  can  cause  serious  personal  injury  if  the  airbags  inflate . 
•  Never  place  or  attach  accessories  or  other  objects  (such  as cup 
holders , telephone  brackets , large , heavy  or  bulky  objects ) on  the 
doors , over  or  near  the  area  marked  "AIRBAG " on  the  steering 
wheel , instrument  panel , seat  backrests  or  between  those  areas 
and  yourself . These  objects  could  cause  injury  in  a  crash , espe 
cially  when  the  airbags  inflate . 
•  Never  recline  the  front  passenger's  seat  to  transport  objects. 
Items  can  also  move  into  the  area  of  the  side  airbag  or  the  front 
IIJ,, 
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___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________  _ 
& WARN ING  (continued ) 
airbag  during  br aking  or  in  a sudden  m aneuver . Obje cts  near  the 
airbags  can  become  proje ctiles  and  cause  injury , parti cularly  when 
the  seat  is  re clined . 
•  Never  tilt  the  front  p assenger  seat  ba ckrest  forward  when  the 
vehi cle  is  moving . An  inflating  airbag  will  force  the  backrest  back
ward  and  can  injure  rear  seat  occupant s. 
& WARNING 
The  fine  dust  created  when  airbags deploy  can  cause  breathing 
problems  for  people  with  a  h istory  of  asthma  or  other  breathing 
conditions. 
•  To reduce  the  risk  of  breathing  problems , those  with  asthma  or 
other  respiratory  conditions  should  get  fresh  air  right  away  by 
getting  out  of  the  veh icle  or  opening  windows  or  doors . 
•  If you  are in  a collision  in which  airbags  deploy , wash  your 
hands  and  face  with  mild  soap  and  water  before  eating . 
•  Be c areful  not  to  get  the  dust  into  your  eyes , or  into  any  cuts  o r 
scratches . 
•  If  the  residue  should  get  into  your  eyes , flush  them  with 
water .• 
Monitoring  the  Advanced  Airbag 
System 
Airbag  monitoring  indicator  light  :~ 
Two separ ate indi ca tor s  m onitor  the  functi on  of  the 
A dvance d Airbag  Sys tem:  th e  air bag  monitor ing  i ndic ator 
lig ht  and  t he 
PASSENGER AIR  BAG OFF light. 
The  Advanced  Airbag  Sys tem  ( includ ing  t he e lectronic  co ntrol  unit, 
sensor  circuits  and  system  wiring ) is  monito red  continuous ly  to  ma
ke sure  tha t it  is functioning  properly  whenever  the ignition  is on . 
Eac h tim e yo u turn  o n the  igniti on,  the  ai rbag  m onito ring  indica to r 
li ght ~ wi ll come  on  for  a  few seconds  (self  diagnost ics). 
The  system  must  be  inspected  when  the  indicator  light 
m : 
•  does  not  co me  o n w hen  the igni tion  is  switche d on, 
•  does  not  go  out  a  few seconds  after  you  have  switched  on  the 
ig niti on,  or 
•  comes  on  whi le  driving. 
If  an  a irbag  sys tem  malfu nction  i s dete cted,  the  in dica tor  lig ht  will 
first  start  f lashing  to  catch  the  driver 's  attention  and  then  stay  on 
c o nti nuou sly  to  serve  as  a  c ons tan t re mind er to  have  the  sys tem 
inspected  immediately. 
I f  a malfunction  occu rs that  turns  the  front  airbag  on  the  passenger 
side  o ff, the  PASSENGER AIR BAG OF F lig ht w ill  come  on  and  stay  on 
whenever  the  ignition  is  on. 
& WARNING 
An  airbag  system  that  is not  functioning  properly  cannot  provide 
supplemental  protection  in a frontal  crash. 
•  If the  airbag  indicator  light  comes  on , it  means  that  there  may 
be  something  wrong  with  the  Ad vanced  Airbag  System.  It  is 
possible that  the  airbag  will  inflate  when  it  is not  supposed  to , or 
will  not  inflate  when  it  should . 
•  Have the  airbag  system  inspected  immediately  by your  Audi 
dealer .•  
Page 150 of 316

___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________  _ 
the  weight-sensing  mat  to  measure  more  weight  than  is actual ly on 
th e seat . 
If the  PASSENGER AIR BAG OFF light  still does not come on and  does 
not  stay  on  continuous ly  (when  the  ignition  is switched  on), 
•  t ake  the c hild  res traint  off  t he front  passe ng er  seat  a nd  ins tall  it 
properly  at  one  of  the  rear  seat  pos it ions.  Have the  a irbag  system 
insp ect ed  by y our  A udi  deal er immedia tely . 
•  move  the  chi ld to  a rear  seat  position  and  make  sure  that  the 
c h ild  is pro pe rly restrai ned in a c hild  restraint  that  is app ropriat e for 
its  size  and  age. 
The 
PASSENGER AIR BAG OFF l igh t sho uld  NOT come  on  when  the 
ignition  is on  and  an  adult  is sitt ing  in a proper  seating  position  on 
the  front  passenge r seat .  If  the 
PASSENGER AIR BAG OFF light 
comes  on  a nd s tays o n or fl ashes for  about  5 seco nds whi le d riving, 
under  these  ci rcumstances,  make  sure  that: 
•  the  adult  on  the  fron t  pass enger  sea t  is pro perly  s eate d  on  the 
cent er of  the  seat  cushion  with  his  or  her  back up  against  the  back 
rest and  the  backrest  is  not reclined => page 116, "Proper  occ upant 
seating  positions", 
•  t he  ad ult  is not  ta king  w eig ht  o ff the  sea t  by  hol ding  o n to  the 
passenger  assist  hand le above  the  front  passenger  door  or 
su ppo rting  their w eigh t on  the  arm res t, 
•  the  safety  be lt  is being  proper ly worn  and  that  there  is  not  a  lot 
o f  sla c k in  the  sa fe ty  b elt  web bin g, 
•  accessory  seat  covers  or cushions  or other  things  that  may cause 
an  incorrect  read ing  o r  impression  on  t he w eight -s e nsi ng  m at 
under  the  upho lstery  of  the  seat  have  been  removed  from  the  front 
pass enger  seat, 
•  a safety  be lt  extender  has not  been  left  in the  safety  be lt  latc h for 
th e fro nt  passenger  sea t. 
In addition  to  the 
PASSENGER AIR BAG OFF l ight  in the  center  of the 
instrument  pane l, the  mes sage 
PASSENGER AIR BAG OFF o r 
PASSENGER AIR BAG ON will  br iefly  appear  in the  instrument  cluster  display.  This  is to  inform  the  driver  of  the  curren
t front  passenger 
air bag  status .• 
Important  safety  instructions  on  monitoring 
the  Advanced  Airbag  System 
& WARNING 
An  airbag  system  that  is not  functioning  properly  cannot  provide 
supplemental  protect ion  in a frontal  crash. 
•  If the  airbag  indicator  light  comes  on , it  means  that  there  may 
be  something  wrong  with  the  Advanced  Airbag  System . It  is 
possible that  the  airbag  will  inflate  when  it  is not  supposed  to,  or 
will  not  inflate  when  it  should . 
•  Have the  airbag  system  inspected  immediately  by your  Audi 
dealer . 
& WARNING 
If the  front  airbag  inflates , a  child without  a child  restraint,  in a 
rear ward-facing  child  safety  seat  or 
in a forward-facing  child 
restraint  that  has  not  been  properly  installed  will  be seriously 
injured  and  can  be  killed . 
•  Even though  your vehicle  is equipped  with  an Advanced Airbag 
System , make  certain  that  all  children , espec ially  12 years  and 
younger, always  ride  on the  back seat  properly  restrained  for their 
age  and  size . 
•  Always  install  forward  or  rear -facing  child  safety  seats  on the 
rear  seat  -even with  an  Advanced  Airbag  System . 
•  If you  must  install  a  rearward -facing  child  safety  seat  on the 
front  passenger  seat  be cause of  exceptional  cir cumstances  and 
the  PASSENGER AIR BAG O FF light  does  not  appear  and  stay  on , 
immediately  install  the  rear -facing  child  safety  seat  in a  rear 
~