sensor AUDI Q3 2018 Owner's Manual
Page 126 of 230
Airbag  syste m 
-Never  h old  things  i n your  hands  or  on  your 
lap  whe n 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  dur
ing  brak ing  or  other  sudden  maneuver  and 
become  dangerous  projectiles  that  can 
ca use  serious  personal  injury  if the  a irbags 
inflate. 
- Never  place  or  attach  accessor ies  or  other 
objects  (such  as  cupholders,  telephone 
brackets,  large,  heavy  o r bulky  objects)  on 
the  doors,  over  or  nea r the  area  marked 
"AIRBAG" on  the  steering  wheel,  instru
ment  pane l,  seat  backrests  or  between 
those  areas  and  yourself.  These  objects  could  cause  injury  in  a  c rash,  especially 
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  a ir
bag  dur ing  braking  or  in a sudden  maneu
ver.  Objects  near  the  airbags  can  become  projectiles  and  cause  injury,  particularly 
when  the  seat  is  reclined. 
A WARNING 
The fine  dust  created  when  airbags  deploy  can 
cause  breathing  p roblems  for  people  w ith  a 
his to ry of  asthma  or  o ther  b reathing  condi
tions . 
- T o reduce  the  risk of  brea thing  problems, 
those  w ith  asthma  or  o ther  respiratory  con
ditions  should  get  fresh  air  right  away  by 
getting  out  of the  vehicle  or o pening  win
dows  or doors. 
- If you  are  in  a collision  in which  airbags  de 
ploy,  wash  your  hands  and  face  with  mild 
soap  and  water  before  eat ing. 
- Be careful  not  to  get  the  dust  into  your  eyes, 
or  into  any  cuts  or  scratches. 
- If  the  resid ue  should  get  into  your  eyes, 
flush  them  with  water . 
124 
Monitoring  the 
Advanced  Airbag  System 
!f Airbag  monitoring  indicator  light 
Two separate  indicators  monitor  the  function  of 
the  Advanced  Airbag System:  the  airbag  moni 
toring indicator  light  and  the 
PASSENGER  AIR 
BAG OFF 
light. 
The Adva nced  A irbag  System  as  well  as  the  side 
airbags  and  s ide  curta in a irbags  w ith  ejection 
mitigation  features  (including  the  electronic  con 
tro l unit,  sensors  and  system  wiring)  a re all 
monitored  cont inuo usly to  make  sure  that  they 
are  functioning  properly  whenever  the  ignition  is  on.  Each time  you  turn  on  the  ignit ion,  the  airbag 
monitoring  i ndicator  light 
m w ill come  on  for  a 
few  seconds  (self  d iagnostics) . 
The system  mu st  be inspected when  the 
indicator  light 
E,I: 
- does  not  come  on  when  the  ignition  is  sw itched 
on, 
- does  not  go  out  a few  seconds  after  you  have 
sw itched  on  the  ignit ion,  or 
- comes  on  while  driv ing. 
If  an  airbag  system  malfunction  is detected,  the 
i ndicato r light  will  come  on  to  serve  as  a  constant 
reminder  to  have  the  system  inspected  immedi
ate ly. 
If  a  ma lfunction  occurs  that  turns  the  front  air
bag  on  the  passenger  side  off,  the 
PASSENGER 
AIR  BAG OFF 
light  will come  on  and  stay  on 
whenever  the  ignition  is  on. 
A WARNING 
A n  airbag  system  that  is  not  functioning  prop
erly  cannot  provide  sup plemental  pro tect ion 
i n  a fro nta l crash. 
- If  the  airbag  ind icator  light ¢ 
page 14 
comes  when  the  veh icle  is  being  used,  have 
the  system  inspected  immediately  by your 
author ized  Audi  dealer.  It  is  possib le  that 
t he  air bag  will  i nflate  when  i t is no t sup 
posed  to,  or wi ll not  inflate  when  it  should .  
Page 127 of 230
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PASSENGER  AIR  BAG  OFF  light 
Fig.  115 Sect ion from  the  instrument  panel:  PASSENGER 
AIR  BAG O FF light 
The PA SSENGER AIR  BAG O FF ligh t  is located  i n 
the  center  of the  instrument  panel¢ 
fig.  115 . 
The PASSENGER AIR  BAG OFF light  will come  on 
and  stay  on  to  tell  you  when  the  front  Advanced 
Ai rbag  on  the  passenger  side  has  been  turned  off 
by the  electronic  control  unit . Each time  you  turn 
on  the  ignition,  the 
PASSEN GER AIR  BAG  OFF 
light  will flash  for  a few  seconds  and: 
- will stay  on  if the  front  passenger  sea t is not 
occupied, 
- will stay  on  if the re  is a  small  child  or  child  re
straint  on  the  front  passenger  seat, 
- will go  ou t if the  front  passenge r seat  is occu
pied  by an  adul t as  reg istered  by the  weight
sensing  mat. 
The 
PASSENGER AIR  BAG OFF light  mu st  come 
on and  stay  on 
if  the  ignition  is  on  and 
- a  car  bed  has  been  installed  on  t he front  seat, 
o r 
- a  rearward-facing  child  restraint  has  been  in
stalled  on  the  front  passenger  seat,  or 
- a forward-facing  child  restra int  has  been  instal
led  on  the  front  passenger  seat,  or 
- the  weight  registered  on  the  front  passenger 
seat  is equal  to  or  less  than  the  combined 
weight  of  a typical  1 year-old  restrained  in one 
of  the  rear-facing  or forward-fac ing  infant  re
straints  listed  in Federal  Motor  Vehicle  Safety 
Sta ndard  208  w ith  w hic h the  Adva nced  A irbag 
System  in your  veh icle  was  certified. 
I f the  front  passenger  seat  is not  occupied,  the 
front  a irbag  w ill not  deploy,  and  the 
PASSENGER 
Airb ag  sys tem 
AIR  BAG OFF light  wi ll stay  on.  Never  install  a 
rearward-facing  child  restraint  on  the  front  pas
senger  seat,  the  safest  place  for  a ch ild  in any 
k ind  of  child  restraint  is at  one  of the  seating  po
sitions  on  the  rear  seat¢ 
page  115,  Child re
straints  on  the  front  seat  -some  important 
things  to  know 
and ¢ page  134,  Child safety. 
If  the  PAS SENGER AIR  BAG OFF light  comes  on 
when  one  of the  conditions  listed  above  is met, 
be  su re to  check  the  light  regularly  to  make  cer 
ta in that  the 
PASSENGER AIR  BAG OFF li ght 
stays  on  continuously  whenever  the  ignition  is 
on.  If the 
PASSENGER AIR  BAG OFF li ght  does 
not  appear  and  not  s tay o n all the  time,  stop  as 
soon  as  it  is safe  to  do  so  and 
- reactivate  the  system  by turning  the  ignit ion 
off  and  then  t urning  it on  again; 
- remove  and  re insta ll the  child  restraint . Make 
sure  that  the  child  restraint  is properly  insta l
led  and  tha t the  safety  belt  for  the  fro nt  pa s
senger  seat  has  bee n correct ly routed  around 
the  child  res traint  as  desc ribed  in the  c hild  re 
stra int  man ufactu rer's  instructions; 
- make  sure  that  the  convert ible  lo ck ing  retrac
t or on  the  safety  belt  for  the  front  passenger 
seat  has  been  activated  and  that  the  safety  belt 
has  been  pulled  tight.  The  belt  m ust  not  be 
loose  or  have  loops  of  slack  so  that  the  sensor 
below  the  safety  belt  latc h on  the  seat  can  do 
its  job¢ 
page  144 . 
-make  sure  that  things  that  may  increase  the 
weight  of the  child  and  ch ild  safety  seat  are  not 
be ing  transported  on  the  front  passe nger  seat; 
- make  sure  that  the  safety  be lt  tens ion  sensor  is 
not  blocked . Shake  the  safety  belt  latch  on  the 
front  passe nger  seatback  and  forth; 
- If a  strap  or  tether  is being  used  to  tie  the  child 
safety  seat  to  the  front  passenger  seat,  make 
sure  that  it  is not  so  tight  that  it  causes  the 
weight-sens ing  mat  to  measu re  more  weight 
t han  is actually  on  the  seat. 
If  th e PA SS ENGER AIR  BA G OFF light  still  does 
not  come  on 
and  does  not  stay  on  continuously 
(whe n the  ignition  is switc hed  on), 
- take  the  child  restraint  off  the  front  passenger 
seat  and  insta ll it  properly  at  one  of the  rear 
Iii--
125  
Page 130 of 230
Airbag system 
service  action  is  entered  in your  Audi  War
ranty 
& Maintenance  book let  under AIRBAG 
REPLACEMENT RECORD. 
@ For the  sake  of  the  environment 
Undeployed  airbag  modules  and  pretension
ers  might  be classified  as  Perchlorate  Materi
al  -special  handling  may  apply,  see 
www.dtsc.ca.gov/hazardouswaste/perchlo
rate.  When  the  vehicle  or  parts  of  the  re
straint  system  including airbag  modules  safe
ty  belts  with  pretens ioners  are  scrapped,  al l 
applicable  laws and regulat ions  must  be  ob
served.  Your authorized  Audi  dealer  is familiar 
with  these  requ irements  and we recommend 
that  you  have  your  dealer  perform this  service 
for  you. 
Other  things  that  can affect  Advanced 
Airbag  performance 
Changing  the  vehicle's  suspension  system  can 
change  the  way  that  the  Advanced  Airbag  System 
performs  in a  crash.  For  examp le,  using  t ire-rim 
combinations  not  approved  by Audi,  lower ing the 
veh icle,  changing  the  stiffness  of the  suspens ion, 
including  the  springs , suspension  struts,  shock 
absorbers  etc . can  change  the  forces  that  are 
measured  by the  airbag  sensors  and  sent  to  the 
electronic  control  unit.  Some  suspension  changes 
can,  for  example,  increase  the  force  levels  meas
ured  by the  sensors  and  make  the  airbag  system 
deploy  in  crashes  in which  it would  not  deploy  if 
the  changes  had  not  been  made . Other  kinds  of 
changes  may  reduce  the force levels  measured  by 
the  sensors  and  prevent  the  airbag from  deploy
ing  when  it  should . 
A WARNING 
Changing the vehicle's  suspension  including 
use  of  unapproved  tire-rim  combinations  can 
change  Advanced  Airbag performance  and  in 
crease  the  risk of  serious  personal  in jury  in  a 
crash. 
- Never  install  suspension  components  that 
do  not  have  the  same  performance charac
teristics  as  the  components  originally  instal
led  on  your  veh icle . 
128 
. 
-Never  use  tire-rim combinations  that  have 
not  been  approved  by Aud i. 
A WARNING 
Items  stored between the  safety  belt  buckle 
and  the  center  conso le  can  cause  the  sensors 
in the  buckle  to  send  the  wrong  information 
to  the  electronic  control  module  and  prevent 
the  Advanced  A irbag  System  from  wo rking 
p roperly. 
-Always  make  sure  that  nothing  can  interfere 
w ith  the  safety  belt buckles  and that  they 
are  not  obstructed. 
Side  airbags 
Description  of  side  airbags 
The airbag system  can provide  supplemental 
protection  to properly  restrained  occupants. 
Fig. 116  Sid e a irbag  locatio n in  the  dr ive r's seat 
The  side  airbags  are  located  in the  s ides  of  the 
front  seat  backrests 
~ fig . 116 facing  the  doors . 
They  are  identified  by the  word  "AIRBAG ". 
The  side  airbag system  basically consists of: 
-the  electronic  control  module  and  external  side 
impact  sensors 
- the  two  airbags  located  in the  sides  of  the  front 
backrests 
- the  airbag  warning  light  in the  instrument  clus-
ter. 
The  airbag  system  is  mon itored  electron ically to 
make  certain  that  it is  functioni ng properly  at  a ll 
times.  Each time  you  turn  on  the  ignition,  the  air 
bag  system  indicator  light  will come  on for  a few 
seconds  (self  diagnostics).  .,,_  
Page 131 of 230
The  side  airbag  system  supplements  the  safety 
be lts  and  can  h elp  to  reduc e th e risk of  injury  to 
the  dr iver's  and  front  passenge r's  upper  torso  on 
t he  side  of  the vehicle  th at  is  struck  in  a side  col 
lis ion . The  airbag  deploys  on ly in  side  impac ts 
and  only  when  the  vehicle  acceleration  reg istered 
by the  control  unit  is  h igh  enough.  If  this  rate  is 
be low  the  reference  va lue  programmed  into  the 
control  unit,  the  s ide  airbags  will  not  be  tr ig 
gered,  even  though  the  car  may  be  badly  dam 
aged  as  a  result  of  the  collision. 
It i s  not  possib le 
to  define  an  airbag  triggering  range  that  wi ll cov
er  ev ery possible  angl e of  impact,  since  th e  cir 
cumstances  will vary  conside rably  between  one 
coll is ion  and  another . Important  factors  include , 
for  example , the  nature  (hard  or  soft)  of the  im
pacting  object,  the  ang le  of  impact,  vehicle 
speed , etc . 
r::;;, page  130 , Important  safety  in
structions  on  the  side  airbag  system . 
Aside from  their  normal  safety  function,  safety 
be lts  work  to  he lp  keep  the  driver  or front  pas 
senger  in  pos it ion  in the  event  of  a side  collision 
so  that  the  s ide  a irbags  can  provide  p rotection . 
The airbag  sys tem  is 
no t a  substitu te for  your 
safety  belt . Rather,  it  is  part  of the  overall  occu 
pant  restraint  system  i n your  veh icle . Always  re
member  that  the  s ide  airbag  system  can  only 
he lp  to  p rotect  yo u if you  a re wea ring  your  safety 
be lt  and  wea ring  it  properly.  This  is another  rea
son  why you  shou ld  always  wear  your  saf ety 
be lts,  not  just  because  the  law  requi res  you to  do 
so 
r::;;, page  106 , General  information. 
It is  important  to  remember  that  while  the  s up
p lemental  side  ai rbag  system  is designed  to  re
duce  the  like lihood  of serious  injur ies,  oth er inju
ri es, for  example,  sw elling , bru is ing,  and  minor 
abrasions  can  a lso  be  associated  with  deployed 
side  airbags.  Remember  too , side  airbags  will de
ploy  only  once  and  only  in certain  kinds  of  a cci
dents  -your  safety  belts  are  always  t here  to  offer 
p rotection . 
Vehicle  damage , repair  costs  or  even  the  lack  of 
vehicle  damage  are  not  necessarily  an  indication 
~ of  over -sensitive  o r failed  airbag  activation . In 
~ some  coll is io ns,  both  front  and  s ide  a irbags  may r--. 
~ in flate.  Remember  too,  that  airbags  will deploy 0 
g only  once  and  only  in  ce rtain  k inds  of  coll is ions  -(X) 
Airb ag  sys tem 
your safety  belts  are  always  there  to  offer  protec
tion  in  those  accidents  in which  a irbags  are  not 
s u pposed  to  deploy  or  when  they  have  already 
deployed . 
The side airbag  system w ill  n ot  deploy: 
- when  t he  ignit io n  i s t urned  off 
- in  side  co llisions  whe n the  acceleration  meas-
ured  by the  sensor  is too  low 
- in front -end  coll is io ns 
- in  rear-end  col lisions 
- in  rollovers . 
In  some  types  of  accidents  the  front  airbags,  side 
curtain  airbags  and  side  airbags  may  be  triggered 
together . 
A WARNING 
--Safety  belts  and  the  airbag  system  will  only 
p rov ide  protect ion  when  occupants  are  i n 
the  prope r seat ing  pos ition 
r::;;, page  130 . 
- If  the  ai rbag  ind icator  light r::;:, page  14 
comes  when  the  veh icle  is  being  used,  have 
the  system  inspected  immedia tely  by your 
a uthor ized  Audi  dealer. 
It is  possib le  th at 
t he  airbag  will  inflate  when  i t is not  sup
posed  to,  or w ill not  inf late  w hen  it  should. 
How  supplemental  side airbags  work 
Side  airbags  deploy  ins tan tly and  can help  re
duce  the  risk of  upper  torso  injuries for  occu
pants  who ore properly  restrained. 
F ig.  117 In fla ted  s ide airba gs  on  lef t side of ve hicl e 
When  the  system  is triggered,  the  airbag  is filled 
with  prope llant  gas  and  breaks  through  a  seam  in 
the  seat  s urface  area  marked  "AIRBAG" . 
It ex-
pands  between  the  side  trim  panel  a nd the  .,. 
129  
Page 133 of 230
a 
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-Damage  (cracks,  deep  scratches  etc.)  to  the 
original  seat  covers  or  to  the  seam  in the 
area  of  the  side  a irbag  module  must  always 
be  repaired  immed iately  by an  authorized 
Audi  dealer . 
-If children  are  seated  improperly,  their  risk 
of  injury  increases  in the  case  of  an  acc ident 
¢ page  134,  Child safety . 
-Never  attempt  to  modify  any  components  of 
the  a irbag  system  in  any  way. 
- In  a  side  collision,  s ide  airbags  will  not  func
tion  properly  if sensors  cannot  correctly 
measure  increasing  air  pressure  inside  the 
doo rs when  air escapes  through  larger,  un
closed  open ings  i n the  door  panel. 
- Never  drive  with  interior  door  trim  pane ls 
removed. 
- Never  drive  when  parts  have  been  re
moved  from  the  inside  door  panel  and  the 
openings  they  leave  have  not  been  proper
ly closed. 
- Never  drive  when  loudspeakers  in the 
doors  have  been  removed  unless  the 
speaker  ho les  have  been  properly  closed. 
- Always  make  certain  that  openings  are  covered  or  fi lled  if additiona l speakers  or 
other  equ ipment  is  installed  in the  inside 
door  panels. 
- Always  have  work  on  the  doors  done  by an 
author ized  Audi  dealer  or  qualified  work
shop. 
Airb ag  sys tem 
Side  curtain  airbags 
Description  of  side curtain  airbags 
The side  curtain  airbag  system  can provide  sup
plemental  protection  to  properly  restrained  oc 
cupants. 
F ig . 118 Side curta in system,  driver 's s ide: side curtain  a ir
bag locat ion 
T he  side  curtain  airbags  are  located  on  both  sides 
of  the  inter ior  above  the  front  and  rear  side  w in
dows ~ 
fig.  118. They  a re  identified  by the  word 
"A IRBAG" on  the  windshie ld frame  and  the  cen
te r roo f pilla r. 
The  side  c urtain  airbags  contain  features  that 
provide  ejection  mitigation  to  help  prevent  veh i
cl e  occupants  or  parts  o f their  bodies  from  be ing 
complete ly or  part ially  ejected  from  the  veh icle 
interior  i n certain  side  impacts  and  vehicle  roll 
overs. 
The  side  c urtain  airbag  system  supplements  the 
safety  belts  and  can  help  to  reduce  the  risk  of  in
jury  for  occupants'  heads  and  upper  torso  on the  s ide  of  the  vehicle  that  is str uck  in a  side  colli
sion . The  side  curtain  airbag  inflates  in side  im
pacts  and  only  when  the  vehicle  acce leration  reg
istered  by the  control  unit  is high  enough.  If this 
rate  is  be low  the  reference  va lue  programmed  in
to  the  control  unit,  the  side  curtain  airbag  will  not  be  t riggered,  even  though  the  car  may  be 
badly  damaged  as  a  resu lt  of  the  co llision . 
It is 
not  possible  to  define  an  airbag  triggering  range 
that  w ill cover  every  possible  angle  of  impact, 
since  the  circumstances  w ill vary  considerably  be 
tween  one  collision  and  another.  Important  fac-
tors  include,  for  example,  the  nature  (hard  or  ..,. 
131  
Page 134 of 230
Airbag system 
soft)  of  the impacting  object,  the  angle  of  im
pact,  vehicle  speed,  etc . 
q page  132,  How side 
curtain  airbags  work. 
Aside  from their  normal  safety  function,  safety 
belts  work  to  help  keep  the  driver  or  front  pas
senger  in  position  in the  event  of  a collision  so 
that  the  side  curtain  airbags  can  provide protec
tion . 
The  airbag  system  is  not  a substitute  for your 
safety  belt.  Rather, it  is part  of the  overa ll occu
pant  restraint  system  in your  vehicle.  Always  re member  that  the  airbag  system  can  only  help  to 
protect  you  if you  are  wearing  your  safety  belt 
and  wearing  it properly . This  is another  reason 
why you  should  always  wear  your  safety  belts,  not  just  because  the  law requires  you  to  do  so 
q page  106,  General information. 
It  is  important  to  remember  that  while  the  side 
curtain  airbag  system  is des igned  to help  reduce 
the  likelihood  of  serious  injuries, other  injuries, 
for  example,  swe lling,  bruising,  and  m inor  abra
sions  can  also  be  associated  with  these airbags. 
Remember  too, these  airbags  will  dep loy o nly 
once  and  only  in certain  kinds  of  accidents  -your 
safety  belts  are  always  there  to  offer  protection . 
The side curtain  airbag  system  basically 
consists of: 
- The  electronic  control  module  and  external  side 
impact  sensors 
- The  side  curtain  airbags  above  the  front  and 
rear  side  windows  with  ejection  mitigation  fea
tures 
- The  airbag  indicator  light  in the  instrument 
panel 
The  airbag  system  is  monito red  electronically  to 
make  certa in  it  is fun ction ing  properly  at all 
times.  Each  time  you  turn on  the  ignition,  the  air
bag  system  indicator  light  will come  on  for  a few 
seconds  (self  diagnostics) . 
The side  curtain  airbag  is not  activated: 
-if the  ignit ion  is tu rned off, 
- in s ide collisions  when  the  accelerat io n  meas-
ur ed  by  the  sensor  is  too  low, 
- in  rear-end  collisions. 
132 
A WARNING 
-Safety  belts  and  the  airbag  system  will only 
provide  protect ion  when  occupants  are  in 
the  proper  seating  position 
~ page  42, 
Front seats . 
-If  the  airbag  ind icator  light q page  14 
comes  when  the  veh icle is being  used, have 
the  system  inspected  immediately  by your 
authorized  Audi  dealer. It is possible  that 
the  airbag  will  inflate when  it is  not  sup
posed  to, or will  not  inflate when  it  should. 
How  side curtain  airbags  work 
Side curtain  airbags can work  together  with side 
airbags  to help reduce  the risk  of head  and  upper 
torso  injuries for  occupants  who  are properly  re
strained. 
Fig. 119 Il lustratio n of  pr inciple: I nflated  s ide  curta in air 
bags  on t he  le ft  s ide 
The  side  curtain  airbags  inflate  between  the  oc
cupant  and  the  w indows  on  the  side  of the  veh i
cle  that  is struck  in a  side  collision 
~ fig.  119. 
When  the  system  is triggered,  the side  curta in 
airbag  is filled  with  propellant  gas  and  breaks 
through  a  seam  above  the  front  and  rear side 
windows  identified  by the  AIRBAG  label. In  order 
to  help  provide  this  additional  protection,  the 
side  curtain  airbag  must  inflate  within  the  blink 
of  an  eye  at  very  high  speed  and  with  great  force . 
The  side  curtain  airbag  could  injure  you  if your 
seat ing  position  is not  prope r or  upright  or  if 
i tems  a re located  in  the  area where the supple
mental  sid e cu rtain airbag  inflates.  This applies 
especially  to children ~ 
page 134. 
Although  they are  not  a  soft  pillow,  side  curtain 
airbags  can  "cush ion"  the  impact  and  in  this  way  .,.  
Page 138 of 230
Child  safety 
Advanced Airbags  and the  weight-sensing mat  in the  front  seat 
The  Advanced  Airbag  System  in your  vehicle  de
tects  the  presence  of  an  infant  or  child  in a  child 
restraint  on  the  front  passenger  seat  using  the 
weight -sensing  mat  in the  seat  cushion  and  the 
sensor  below  the  safety  belt  latch  on  the  front 
passenger  seat  that  measures  the  tension  on  the 
safety  belt . 
The  weight-sensing  mat  measures  total  weight 
of  the  child  and  the  child  safety  seat  and  a child  blanket  on  the  front  passenger  seat . The  weight 
on  the  front  passenger  seat  is  related  to  the  de
sign  of  the  child  restraint  and  its "footprint ", the 
size  and  shape  of  the  bottom  of  the  child  re
straint  as  it sits  on  the  seat.  The weight  of  a  child 
restraint  and  its  "footprint"  vary  for  different 
kinds  of  child  restraints  and  for the  different 
models  of  the  same  kind of  child  restraint  of
fered  by child  restraint manufacturers. 
The  weight  ranges  for the  individual  types, 
makes  and  models  of  child  restraints  that  the 
NHTSA  has specified  in the Safety Standard to
gether  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  child,  the 
Advanced  Airbag  System  compares the  weight 
measured  by  the weight  sensing  mat with  the  in
formation  stored  in the  electronic  control  unit. 
The  electronic  control  unit  also  registers  the  ten
sion  on  the  front  passenger  safety  belt.  The ten
sion  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  re
straint  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  "de
cide" , 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. 
136 
·  Child  restraints  and  Advanced Airbags 
Regardless  of  the child  restraint  that  you  use, 
make  sure  that  it  has  been  certified  to meet  Safe
ty  Standards  and  has been  certified  by  its manu
facturer  for  use  with  an  airbag.  Always  be  sure 
that  the  child  restraint  is  properly  installed  at 
one  of  the  rear seating  positions . If  in  exception
al  circumstances  you  must  use  it  on  the  front  passenger  seat,  carefully  read  all  of  the  informa
tion  on  child  safety  and  Advanced  Airbags  and  heed  all  of  the  applicable  WARNINGS.  Make cer
tain  that  the  child  restraint  is correctly  recog
nized  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. 
Many types  and models  of  child  restraints  have 
been  available  over  the years,  new  models  are  in
troduced  regularly incorporating  new  and  im
proved  designs  and  older  models  are  taken  out  of 
production.  Child  restraints are  not  standardized. 
Child  restraints  of  the  same  type  typically  have 
differen t weights  and  si zes  and  different  '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  impossible  to certify  compliance 
with  the  requirements  for  advanced  airbags  with 
each  and  every  child restraint  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  National  High
way  Traffic  Safety  Administration  has  published  a 
list  of  specific  type,  makes  and  models  of  child 
restraints  that  must  be  used  to  certify  compli
ance  of  the  Advanced  Airbag  System  in your  vehi
cle with  the  suppression  requirements  of  Federal 
Motor  Vehicle  Safety  Standard  208.  These  child 
restraints  are: 
Subpart  A - Car bed child  restraints 
Model  Manufactured  on or 
after 
Angel  Guard  Angel  September  25,  2007  Ride AA2403FOF  
Page 185 of 230
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A WARNING 1 = -
The  traction  grade  ass igned  to  this  tire  is 
based  on  straight-ahead  braking  traction 
tests,  and  does  not  include  acceleration,  cor nering,  hydroplaning  or  peak  tract ion  charac
teristics. 
A WARNING 
The  temperature  grade  for  this  t ire  is estab
lished  for  a t ire that  is  properly  inflated  and 
no t overloaded.  Excess ive speed,  underinfla
tion,  or  excessive  loading,  either  separately  or 
in  combination,  can  cause  heat  buildup  and 
possible  tire  failure. 
A WARNING 
Temperature  grades  apply  to  tires  that  are  properly  inflated  and  not  over  or  underinflat
ed. 
Tire  pressure  monitoring system 
(!) General  notes 
Applies  to: veh icles with  tire  pressure  monitoring  system 
-
Each tire,  including  the  spare  (if provided), 
should  be  checked  monthly  when  co ld  and  inflat
ed  to  the  inflation  pressure  recommended  by the 
vehicle  manufacturer  on  the  vehicle  placa rd  or 
tire  i nflat ion  pressure  label.  (If your  vehicle  has 
tires  of  a different  s ize tha n the  s ize  indicated  on 
the  veh icle  placard  or  tire  inflation  pressure  la
be l, yo u sh ou ld  de termine  the  prope r tire  infla
tion  pressure  for  those  tires). 
As an  added  safety  feature,  your  veh icle  has  been 
eq uipped  w ith  a  tire  pressu re  monito ring  sys tem 
(TPMS) that  ill uminates  a  low  tire  p ress ure  te ll
tale  when  one  or  more  of  your  tires  is significan t
l y under-inflated.  Accordingly,  when  the  low  tire 
p ressure  tellta le  illuminates,  you  should  stop  and 
check  yo ur tires  as  soon  as  possible,  and  inflate 
them  to  the  proper  pressure.  Driving  on  a s ignifi
cantly  under-i nflated  tire  causes  the  tire  to  over
h eat  and  can  lead  to  t ire  failure . Unde r-inflation 
a lso  reduces  fuel  efficiency  and  t ire  t read  life, 
Wh eel s 
and  may  affect  the  vehicle 's  handling  an d stop 
ping  ability. 
Please  note  tha t the  TPM S is  not  a  s ubstitute  fo r 
prope r ti re  maintenance,  a nd  it  is the  dr iver's  re
spons ibility  to  maintain  co rrect  t ire  pressure, 
even  if  under-inflatio n has  not  reached  the  level 
to  t rigge r ill umination  of  the  TPMS low t ire  pres
s ur e te lltale . 
Yo ur vehicle  has  also  been  equipped  with  a  TPMS 
malfunction  indicator  to  indicate  when  the  sys
tem  is  not  ope rating  properly.  The  TP MS ma l
funct ion  indicator  is combined  with  the  low  t ire 
pressure  telltale.  When  the  system  detects  a 
malfu nction,  the  telltale  w ill flash  for  app roxi
mately  one  m inute  and  t hen  rema in continuously 
illuminated . Thi s  seque nce  w ill cont inue  upon 
s u bsequent  vehicle  star t-ups  as  long  as  the  mal
funct ion  exists. 
When  the  malfunction  indicator  is  illum inated, 
the  system  may  not  be  able  to  detect  o r signal 
l ow  tire  p ressure  as  intended.  TPMS malfunct ions 
may  occur  fo r a  v arie ty of  reaso ns,  including  the 
insta llation  o f  replacement  or  al ternate  tires  or 
whee ls  on  the  vehicle  that  p revent  the  TPMS 
from  functioning  proper ly . Always  check  the 
TPMS ma lf u nction  te lltale  after  replac ing  one  or 
more  tires  or  wheels  on  yo ur vehicle  to  ensure 
that  the  rep lacement  or  a lt ernate  tires  and 
wheels  allow  the  TPMS to  continue  to  function  prope rly. 
' If  the  Tire Pressure Monitoring  System 
indicator  appears 
Applies  to: vehicles wi th Tire  Pressur e Mon ito ring  System  in· 
dicator 
The  tire pressure  indicator in the  ins trument 
cluster  informs you  if the  tire pressure  is too  low 
or if  there  is a system  malfunction . 
Using  the  ABS sensors,  the  tire  pressure  monitor
ing  system  compares  the  tire  tread  c ircumfer
ence  and  v ibration  characterist ics  of  the  ind ividu 
al  tires.  If  the  pressure  changes  in  one  o r more 
whee ls,  this  is indicated  in the  inst rument  cl uste r 
display  with  t he 
[IJ indica to r  light  and  a  mes
sage . If  only  one  tire  is  affec ted,  the  locat ion  of 
that  tire  w ill be  indicated.  .,,. 
183  
Page 187 of 230
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Care  and  cleaning 
General  information 
Regular,  proper  care  helps  to  maintain  your vehi 
cle's  value.  It  can  a lso  be a  requirement  when 
submitting  warranty  claims  for  corrosion  damage 
and  paint  defects  on the  body. 
The necessary  care  products  can  be obtained 
from  an authorized  Audi dealer  or authorized 
Audi Service  Facility . Read  and  follow  the  instruc
tions  for  use  on the  packaging. 
A WARNING 
- Us ing clean ing and  care  products  incorrectly 
can  be dangerous  to  your  health. 
- Always store  clean ing and  care  products  out 
of  reach  of children  to  reduce  the  r isk of  po i
son ing . 
@ For the  sake of the  environment 
- Preferably  purchase  env ironmenta lly-friend
l y cleaning  products. 
- Do not d ispose of leftover cleaning and care 
products  with  household  trash. 
Car  washes 
T he  longer  that  deposits  remain  on the  vehicle, 
the  more  the  surface  may  be damaged.  High 
temperatures  such  as  those  caused  by sunlight  increase  the  damag ing  effect. 
Befor e washing,  rinse 
off heavy depos its  with 
p lenty  of water. 
S tubborn  depos its  such  as  bird  droppings  or  tree 
sap  are  best  removed  with  plenty  of  water  and  a 
microfiber  cloth. 
A lso,  wash  t he un derside  of yo ur vehicle  once 
road  sa lt  stops  being  used  for  the  season . 
Pressure washers 
When  washing your ve hicle w ith  a pressure  wash
e r, a lways fo llow the  operating  instructions  pro
vided wi th the  p ressure  washer.  This is especially 
i mportant  in  rega rd to  the  pressure  and  sp raying 
d istance . Do not  aim  the  spray  directly  at  seals  on 
side  windows,  doors,  the  hood,  the  luggage  com-
Ca re  and  cleaning 
partment  lid or the  panorama  glass  roof* or  at 
tires,  rubber  hoses,  insulating  material,  sensors * 
o r camera  lenses* . Keep a distance  of  at  least  16 
in 
(40 cm). 
Do not  remove  snow  and  ice with  a pressure 
washer. 
Never use  cone  nozz les  o r high  press ure nozzles . 
T he water  temperatu re must  not  be  above 
140 °F 
(60 °(). 
Automatic  car washes 
Spray  off the  vehicle  before  washing. 
Make s ure that  the  windows  and  roo f* are  closed 
and  the  windshie ld wipers  are 
off . Follow  instruc 
tions  from  the  car wash  ope rator,  especially  if 
there  are  accessories  attached  to  your vehicle. 
If possible,  use  car  washes  that  do  not  have 
brushes . 
Washing by hand 
Clean the ve hicl e starting  from  the  top  and  wor k
i ng  down  using  a soft  sponge  o r cleaning  br ush. 
U se  solven t-free  cleaning  produ cts. 
Washing  vehicles with  matte  finish  paint by 
hand 
T o avo id damag ing the  pa int  w hen washi ng, fi rst 
remove  dust  and  large  pa rticl es  from  you r vehi
cle . Insects,  grease  spots  and  fingerprints  are 
best  removed  w ith  a special  cleaner  for  matte 
finish  paint. 
Apply t he  product  using  a microf iber  cloth . To 
avoid damaging  the  paint  surface,  do  not  use  too 
much  pressure. 
Rinse the  ve hicl e  thoroug hly w ith  wate r.  Then 
cl ean  usi ng a  neutral  shampoo  and  a soft  micro
fiber  cloth . 
Rinse the  ve hicl e  thorough ly aga in and  let  it  air 
dry. Remove  any wate r residue  using  a  chamois. 
WARNING 
-On ly wash  the  vehicle  when  the  ign ition  is 
off and  follow the  instr uctions  from  the  car 
185  
Page 188 of 230
Care  and  cleaning 
wash  operator  to reduce the risk of  acci
dents. 
- To reduce  the risk  of  cuts,  protect  yourself 
from  sharp  metal  components  when  wash ing  the  underbody  or  the  inside  of the  wheel 
housings. 
- After  washing  the  vehicle,  the  braking effect 
may  be  delayed  due  to  moisture  on  the 
brake  rotors  or  ice  in the  winter.  This  in
creases  the  risk of  an  accident.  The  brakes 
must  be dried  first  with  a few  careful  brake 
applications. 
(D Note 
- If  you wash  the  vehicle  in  an  automatic  car 
wash,  you  must  fold  the  exterior  mirrors  in 
to  reduce  the  risk  of  damage to  the mirrors. 
Power  folding  exterior  mirrors* must  only 
be  folded  in and  out using  the  power  folding 
function. 
- To reduce  the  risk of  paint  damage,  do not 
wash  the vehicle  in  direct sunlight.  -
To  reduce  the risk of  damage  to  the  surface, 
do  not  use  insect  removing  sponges,  kitchen 
sponges  or similar  items. 
- Matte  finish  painted  vehicle  components: 
- To reduce  the  risk  of  damage  to  the  sur-
face,  do  not  use  polishing  agents  or  hard 
wax. 
- Never  use protective  wax.  It  can  destroy 
the  matte  finish  effect. 
- Do not  place  any  stickers  or  magnetic 
signs  on  vehicle  parts  painted with  matte 
finish  paint.  The  paint  could  be  damaged 
when  the stickers  or  magnets  are  re
moved. 
@ For the  sake of the  environment 
Only wash  the  veh icle  in facilities  spec ially  de
signed  for  that  purpose.  This will  reduce the 
risk of  dirty  water  contaminated  with oil from 
entering  the sewer  system. 
Cleaning  and  care  information 
When  clean ing  and  caring for individual  vehicle 
components,  refer  to  the  following tables.  The 
information  contained there  is simply  recom
mendations.  For quest ions  or for  components  that  are 
not  listed,  consult  an  authorized  Aud i 
dealer  or  authorized  Audi  Service  Facility. Also 
follow  the information  found  in¢&.. 
Exterior  cleaning 
Component  Situation  Solution 
Windshield  wiper 
Deposits ¢ page  39, Cleaning  the  wiper  blades 
blades 
Headlights/ 
Deposits  Soft  sponge  with  a  mi ld  soap  solutiona > 
Tail lights 
Sensors/ 
Deposits  Sensors:  soft  cloth  with  solvent-free  cleaning  solution 
Camera lenses Camera  lenses:  soft  cloth  with  alcohol-free  cleaning  solu-
tion 
Snow/ice  Hand  brush/so
lvent-free  de -icing  spray 
Wheels Road  salt  Water 
Brake  dust  Acid-free  special  cleaning  solution 
Exhaust tail  pipes Road  salt  Water,  cleaning  solution  suitable  for  stainless  steel,  if 
necessary 
Decorative  parts/ Deposits  Mild soap  solution al, a cleaning  solution  suitable  for 
Trim stainless  steel,  if necessary 
186