sensor AUDI A5 2015 Owner´s Manual
Page 145 of 264
M N 
0 loo 
rl I.O 
"' N 
"' rl 
@ For the  sake of the  environment 
Undep loyed  airbag  modu les  and  pretension
ers  might  be  classified  as  Perchlorate  Mater ial 
-special  handling  may  apply,  see 
www.dtsc.ca.gov/hazardouswaste/perchlo rate.  When  the  vehicle  or  parts  of  the  re
straint  system  includ ing  a irbag  modules  safe
ty  belts  with  pretensioners  are  scrapped,  a ll 
app licable  laws  and  regu lations  must  be  ob
served.  Your author ized  Audi dealer  is fam iliar 
w ith  these  requirements  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  A irbag  System 
performs  in a  crash.  For example,  using  t ire-rim 
comb inat ions  not  approved  by Audi,  lowering  the 
vehicle,  chang ing  the  stiffness  of  the  s uspension, 
including  the  springs,  suspension  struts,  shock 
absorbers  etc . can  change  the  forces  that  are 
measured  by the  airbag  sensors  and  sent  to  the 
e lectronic  control  un it.  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 wou ld  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  s uspension  including 
use  of  unapproved  tire-rim  combinations  can 
change  Advanced  Airbag  performance  and  in 
crease  the  risk  of  ser ious  personal  injury  in  a 
crash. 
- Never  install  suspens ion  components  that 
do  not  have  the  same  performance  charac
teristics  as  the  components  or iginally  instal
led  on  your  veh icle. 
- Never  use  tire-rim  combinations  that  have 
not  been  approved  by Audi. 
Ai rb ag  system 
A WARNING 
-Items  stored  between  the  safety  be lt  buckle 
and  the  center  console  can  cause  the  sensors  i n the  buckle  to  send  the  w rong  informat ion 
to  the  electronic  control  module  and  prevent 
the  Advanced  A irbag  System  from  wor king 
properly. 
- Always  ma ke  sure  that  nothing  can  interfere 
wit h the  safety  belt  buckles  a nd  that  they 
are  not  obstr ucted. 
Knee  airbags 
Description  of  knee airbags 
Appl ies to  vehicles:  wit h knee airbags 
The knee  airbag system  can provide supplemen
tal protection  to properly  restrained  front  seat 
occupants. 
Fig.  136 Dr iver 's knee ai rbag 
T he  driver  knee  airbag  is  in  the  instrument  panel 
u nderneath  the  steer ing  whee l~ 
fig.  136, the 
knee  airbag  for  the  passenger  is at  abou t the 
same  height  in the  instrument  pane l underneath 
the  g love  compartment. 
T he  knee  airbag  offe rs additional  p rotection  to 
the  driver's  and  passenge r's  knees  and  uppe r and 
lower  thigh  areas  and  supp lements  the  protec
tion  provided  by the  safety  belts. 
If  the  front  a irbags  dep loy, the  knee  a irbags  also 
deploy  in fronta l co llisions  when  the  dep loyment 
th resho ld  stored  in the  control  unit  is  met 
~ page  13 7, More important  things  to  know 
about  front  airbags. 
In  add ition  to  their  normal  sa fety  f unct ion,  safe-
ty  be lts  he lp keep  the  driver  or  fro nt  passenger  in  .,. 
143  
Page 148 of 264
Airbag  syste m 
-the  e lectronic  control  module  and  external  side 
impact  sensors 
- the  two  side  airbags  located  in the  sides  of the 
front  backrests 
- the  a irbag  warning  light  in the  inst rument  clus-
ter. 
The airbag  system  is  monitored  electron ica lly to 
make  certa in that  it  is functioning  properly  at  all 
times.  Each  time  you  tu rn  on  the  ignition,  the  a ir
bag  system  indicator  light  will come  on  for  a  few 
seconds  (se lf  diagnostics). 
The s ide  a irbag  system  supplements  the  safety 
be lts  and  can  he lp to  reduce  the  r isk  of  injury  to 
the  driver's  and  front  passenger's  upper  torso  on 
the  side  of the  vehicle  that  is struck  in a  side  col
lision.  The  airbag  dep loys  only  in side  impacts 
and  only  when  the  vehicle  accelerat ion  registered 
by the  control  unit  is high  enough.  If  this  rate  is 
below  the  reference  value  programmed  into  the 
control  unit,  the  side  airbags  will  not  be  trig
gered,  even  though  the  car  may  be  bad ly dam
aged  as  a  result  of the  coll is ion.  It  is  not  poss ible 
to  define  an  airbag  triggering  range  that  will cov
er  every  possible  ang le  o f  impact , since  the  c ir
cumstances  wi ll vary  considerably  between  one 
collision  and  another . Important  factors  include, 
for  examp le,  the  nature  (hard  or  soft)  of the  im 
pacting  object,  the  ang le  of  impact,  vehicle 
speed,  etc.  ¢ 
page  147,  Important  safety  in
structions  on  the side  airbag system . 
Aside  from  their  normal safety  function,  safety 
be lts  work  to  help  keep  the  dr iver  or front  pas
senger  in  pos it ion  in  the  event  of  a s ide  collision 
so  that  the  side  a irbags  can  provide  protect ion. 
The airbag  system  is 
not a  substitute  for  your 
safety  belt.  Rather,  it  is  part  of  the  overall  occu pant  restraint  system  in your  vehicle.  Always  re
member  that  the  s ide  airbag  system  can  only 
help  to  protect  you  if you  are  wear ing your  safety 
be lt  and  wearing  it  properly . This  is another  rea
son  why you  should  always  wear  you r safety 
be lts,  not  j ust  because  the  law  requ ires  you  to  do 
so ¢ 
page  121,  General information. 
It is  important  to  remember  that  while  the  sup
p lemental  side  a irbag  system  is des igned  to  re
duce  the  likelihood  of  serio us  in juries, o ther  inj u-
146 
ries , fo r example,  swelling,  bruising,  and  minor 
abrasions  can  a lso  be  associated  with  dep loyed 
s ide  a irbags.  Remember  too,  side  a irbags  w ill de
ploy  only  once  and  only  in certain  kinds  of  acci
dents  - your  safety  belts  are  always  there  to  offer 
protection . 
Vehicle  damage,  repair  costs  or  even  the  lack  of 
vehicle  damage  are  not  necessarily  an  indication 
of  over-sensitive  or  failed  airbag  activation . In 
some  collisions,  both  front  and  side  airbags  may  i nflate . Remembe r too,  that  a irbags  w ill deploy 
o nl y once  and  only  in certa in  kinds  of  collisions  -
you r safety  be lts  a re a lways  there  to  offer  p rotec
t ion  in those  accidents  in wh ich  airbags  are  not 
supposed  to  deploy  or  when  they  have  a lready 
deployed . 
The side  airbag  system  will  not  deploy: 
-when  the  ignit ion  is turned  off 
- in side  collisions  when  the  accelerat ion  meas -
ured  by the  sensor  is  too  low 
- in front-end  collis ions 
- in  rear-end  collisions 
- in  rollovers. 
In  some  types  of  accidents  the  front  airbags,  side 
cu rtain  airbags  and  side  a irbags  may  be triggered 
together . 
A WARNING 
-Safety  belts  and  the  airbag  system  will  only 
provide  protection  when  occupants  are  in 
the  proper  seating  position¢ 
page  147. 
-If  the  airbag  ind icator  light¢ page  19 
comes  when  the  veh icle  is  being  used,  have 
the  system  inspected  immediately  by your 
author ized  Audi  dealer.  It  is  possible  that 
the  airbag  will  inflate  when  it  is not  sup
posed  to,  or  will not  inflate  when  it  should.  
Page 150 of 264
Airb ag  syst em 
by being  pushed  into  you as t he airbag  in
flates. 
- Never p lace or  attach  accessories or other 
objects  (such as cupholders,  telephone  brackets,  or  even large,  bulky  objects)  on 
the  doors,  over or  near the  area marked  "AIRBAG" on the  seat  backrests. 
- Su ch ob jects and ac cessories can become 
dangerous  projecti les and cause  injury 
when  the  supplemental  side airbag  de 
p loys . 
- Never carry  any objects  or  pets  in the  de 
p loyment  space between  them  and the 
airbags  or allow  chi ldren  or  other  passen
gers to  trave l in this  position . 
- 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 a irbags from  be ing 
damaged  by heavy objects  knocking  against 
o r  hitting  the  sides of  the  seatbacks . 
- The airbag  system  can only  be triggered 
once . If  the  airbag  has been triggered,  the 
system  must  be rep laced by an authorized 
Audi  dealership. 
- Damage (c racks, deep scratches  etc.)  to  the 
o riginal  seat covers or  to  the  seam in the 
area of  the  side airbag  module  must  a lways 
be repaired  immedia tely  by an authori zed 
Audi  dealer . 
-If children  a re seated  improperly,  their  risk 
of  injury  i ncreases in  the  case of  an a ccident 
~ page  151,  Child safety . 
-Never a ttempt  to  modify  any com po nents  of 
the  a irbag  sys tem  in  any way . 
- In  a side  collision,  s ide a irbags w il l  not  fu nc
t ion  prope rly  if  sensors canno t correc tly 
measure increas ing air  pressure inside  the 
doors when  air escapes through  larger,  un
closed openings  in the  door  panel. 
- Never drive  w ith  inter io r doo r tr im  panels 
removed . 
- Never drive  when  parts  have been re 
moved from  the  ins ide door  panel and the 
open ings they  leave hav e not  bee n prope r
ly  closed. 
148 
- Never drive when  loudspeakers  in the 
doors  have been  removed  unless the 
speaker ho les have bee n properly  closed. 
- Always  make certain  that  openings  are 
covered or f illed if  add itiona l speakers or 
other  equipment  is installed  i n the  inside 
door  panels. 
- Always  have work  on the  doors done  by an 
autho rized Aud i dea le r or  q ualified  work
shop . 
Side  curtain  airbags 
Description  of  side curtain  airbags 
The side  curtain  airbag  system  can provide  sup
plemental  protection  to properly  restrained  oc
cupants . 
Fig. 1 40 Sid e  curt ain system , driver's s ide : side  c urtain  ai r
bag  loca tion 
The side  curtai n airbags  are located  on both  sides 
of  the  inter ior  above the  front  and  rear side win
dows 
~ fig.  140 . They are identif ied by the  word 
"AIRBAG" on the  windsh ield frame  and the  cen 
ter  roof  pi llar. 
The side  curtai n airbag  system  supplements  the 
safety  belts  and can help  to  reduce the  risk  o f  in
jury  for  occupants'  heads and upper  torso  on the  s ide of  the  vehicle  that  is struck  in  a side coll i
s io n. The  side curtain  ai rbag inflates  in side  im
pacts and only  when  the  veh icle acceler ation  reg
istered  by the  cont ro l unit  is high  enough . If  t his 
rate  is below  the  reference value  prog ram med  in
to  the  control  un it,  the  side a irbags w ill not  be 
trigge red, even thoug h the  ca r  may be bad ly 
damaged  as a resul t of  t he coll is ion.  It  is no t po s
s ible to  define  an airbag  triggering  range that 
will  cover every possible angle  of  impact,  since  .,._  
Page 151 of 264
M N 
i? co 
the circumst ances wi ll vary considerably  between 
one co llision  and another . Important  facto rs in
clude,  for  example,  t he nature  (hard  or  soft)  of 
the  impacting  object,  the  angle  of  impact,  vehicle 
speed, etc . 
¢ page  149, How side  curtain  air
bags  work . 
Aside from  the ir norma l safety  func tion,  safety 
be lts  work  to  help  keep the  dr iver or front  pas
senger  in  posit ion  in the  event  of  a collision  so 
that  the  side curta in a irbags  can provide  protec 
tion . 
The airbag  system  is not  a subst itute  for  your 
safety  belt.  Rather,  it  is part  of  the overall  occu
pant  restraint  system  in your  vehicle . Always re
member  that  the  airbag  system  can only  help  to 
p rotect  you  if  you are wear ing your  safety  be lt 
and wear ing  it  prope rly.  This is another  reason 
why you should  a lways we ar your  safety  belts, 
not  just  because the  law  req uires you  to  do  so 
¢ page  121,  General information. 
It is impor tant  to  remember  that  whi le  the side 
cur tain a irbag  sys tem is designed  to  he lp redu ce 
the  like lihood  o f serious  injuries,  other  injur ies, 
for  example,  swe lling,  bruising,  and minor  abra 
sions  can a lso be associated  with  these  airbags . 
Remember  too,  these  airbags  wi ll dep loy only 
once and only  in certain  k inds of  accidents  -yo ur 
safety  belts  are always there  to  offer  protect ion. 
The side curt ain airbag  sy stem  basically 
con sists of : 
-The electronic  control  mod ule and externa l side 
impact  sensors 
- The side curtain  airbags  above the  front  and 
rear side w indows 
- The airbag  indicator  light  in the  instrument 
panel 
The airbag  system  is monitored  elect ronica lly to 
make certain  it  is f unctioning  proper ly at  a ll 
times.  Eac h time  you turn  on the  ign ition,  the  a ir
bag system  ind icator  light  will  come  on for  a few 
seconds (self  diagnostics). 
The side curt ain airbag  is not  activated: 
- if  the  ignitio n is turned  off, 
~ - in s ide coll isions when  the  acce leration  meas-.,., 
~ u red by the  sensor  is too  low, ,...., 
Airbag  syste m 
- in  rear -end co llisions, 
- in  rollove rs. 
A WARNING 
-
- Safety  belts  and  the airbag  system  will  only 
p rovi de p rotection  when  occ upants  are in 
the  proper  seating  position 
¢ page  54, 
Seats and  storage. 
- If  the  ai rbag indicator  light ¢ page  19 
comes when  the  veh icle  is being  used,  have 
the  system  inspected  immediately  by your 
author ized Audi  dealer.  It  is possib le that 
the  airbag  will  inflate  when  it  is not  sup 
posed  to, or  will  not  infla te when  it  s hould. 
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 . 
E 
Fig. 14 1 Illus trati on  of  pr inc ip le : Inf lat ed  s ide  curtain  a ir
bags  o n  the  left  s ide 
The side curtai n airbags  inflate  betwee n the  oc
cupant  a nd the  w indows  on the  side of  the  ve hi
cl e that  is st ruck in a side collision 
¢ fig.  141. 
When  the  system  is triggered,  the  side curta in 
airbag  is filled  with  prope llant  gas and  breaks 
t hr ough  a seam above the  front  and  rear side 
windows  ident ified  by the  AIR BAG  label.  In o rder 
to  help  provide  this addi tional  p rotec tion , the 
s ide cu rtain airbag  mus t in flate  w it hi n the  blin k 
of  an eye at  very  high  speed and wi th great  force. 
The side c urtain  airbag  co uld  inj ure you  if  yo ur 
seating  position  is not  proper  or  upright  or  if 
items  are  located  in the  area where  the  s upple
mental  s ide curtain  airbag  inflates.  This applies 
especially  to  ch ildren 
¢ page  lSl.  .,.. 
149  
Page 154 of 264
Child  safety 
exceptional  circumstances  and  the PASSEN
GER AIR  BAG OFF 
light  does  not  come  on 
and  stay  on,  immediately  install  the  rear
ward-facing  child  safety  seat  in a  rear  seat
ing  position  and  have  the  airbag  system  in
spected  immediately  by your  authorized 
Audi  dealer. 
_& WARNING 
If,  in  exceptional  circumstances,  you  must  in
stall  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  man
ufacturer  for  use  on  a front  seat  with  a pas
senger  front  and  side  airbag. 
- Always follow  the  manufacturer's  instruc
tions  provided  with  the  child  safety  seat  or 
carrier. 
- Always  move  the  passenger  seat  into its 
rearmost  position  in the  seat's  fore  and  aft 
adjustment  range,  as  far away  from  the  air
bag  as  possible  before  installing  the  child 
restraint.  The  backrest  must  be  adjusted  to 
an  upright  position. 
- Always  make  sure  that  the 
PASSENGER AIR 
BAG OFF 
light  comes  on  and  stays  on  all  the 
time  whenever  the  ignition  is switched  on. 
(D Tips 
Always  replace  child  restraints that  were  in
stalled  in a vehicle  during  a  crash.  Damage  to 
a  child  restraint  that is not  visible  could  cause 
it to  fail  in another  collision  situation. 
Advanced front  airbag  system  and  children 
Your vehicle  is equipped  with  a front  "Advanced 
Airbag  System"  in compliance  with  United  States 
Federal  Motor  Vehicle  Safety  Standard (FMVSS) 
208  as applicable  at  the time  your  vehicle  was 
manufactured. 
The  Advanced  Airbag  system  in your  vehicle  has 
been  certified  to meet  the  "low-risk"  require
ments  for  3- and 6-year  old  children  on  the pas
senger  side  and  small  adults  on  the  driver  side. 
The  low risk deployment  criteria  are  intended  to 
152 
reduce  the  risk of  injury  through  interaction with 
the  airbag  that  can  occur,  for  example,  by being 
too  close  to  the  steering  wheel  and  instrument  panel  when  the  airbag  inflates.  In  addition,  the 
system  has been  certified  to  comply  with  the 
"suppression"  requirements  of the  Safety  Stand 
ard,  to  turn  off  the front  airbag  for  infants  up  to 
12  months  who  are  restrained on  the  front  pas
senger  seat  in child restraints  that are  listed  in 
the  Standard. 
Even though  your  vehicle  is equipped  with  an  Ad
vanced  Airbag  system,  all  children,  especially 
those  12 years  and younger,  should  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 
larger  child  in  a  rearward-facing  seat. 
· 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  offered 
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 together 
with  the  weight  ranges of typical  infants  and  typ-
ical  1  year-old  child  have been  stored  in the  .,..  
Page 155 of 264
M N 
i? co ,...., \!) Ll'I 
N Ll'I ,...., 
control unit  of  the  Advanced  Airbag  System . 
When  a  child  restraint  is  being  used  on  the  front  passenger  seat  with  a  typical  1 year -o ld  chi ld,  the 
Advanced  Airbag  System  compares  the  weight  measured  by the  weight  sensing  mat  with  the  in
formation  stored  in the  electron ic contro l unit . 
T he  electronic  control  unit  a lso  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 
usi ng  the  safety  belt  as  compared  to the  tens ion 
on  the  belt  w hen  it  is  used  to  attach  a  chi ld  re
straint  to  the  sea t. The  senso r below  the  latch  fo r 
the  safe ty belt  for  the  fron t seat  passenger 
measures  the  tension  on  the  be lt.  The  inp ut  from 
this  sensor  is then  used  with  the  weight  to  "de 
cide",  whether  the re  is a  child  restraint  wit h a 
typical  1 year-old  chi ld  on  the  front  passenger 
seat  and  whether  or  not  the  airbag  must  be 
turned 
off . 
Child  restraints  and  Advanced  Airbags 
Regardless  of  the  chi ld  restraint  that  you  use, 
make  sure  that  it  has  been  ce rtified  to  meet  Un it
ed  States  Fede ral  Motor  Vehicle  Safety  Standards 
and  has  been  certified  by i ts  manufac turer  for 
use  w ith  an  airbag . A lways  be  sure  tha t the  child 
restra int  is  properly  installed  at  one  o f the  rear 
seating  positions . If  in exceptiona l circumstances 
you  must  use  it  on  the  front  passenger  seat,  care fu lly read  all  of  the  information  on  child  safety 
and  Advanced  Airbags  and  heed  all  of  the  appli
cable  WARNINGS . Make  certain  that  the  ch ild  re 
straint  is correctly  recognized  by the  weight-sens
i ng  mat  i nside  the  front  passenge r seat,  that  the 
fr ont  passenger  airbag  is  tu rned 
off and  that  the 
air bag  status  is always  corre ct ly signaled  by the 
PASSENGER  AIR  BAG OFF li ght . 
Many types  and  models  of  ch ild  rest ra ints  have 
b een  ava ilable  over  the  yea rs,  new  models  are  i n
t roduced  regul arly incorpo rat ing  new  and  im
p roved  des igns  and  o lder  models  a re taken  o ut  o f 
p ro du ction.  Child  rest raints  a re  not  standardized. 
Child  restra ints  of  the  same  type  typically  have 
d ifferent  weights  and  s iz es  and  different  'foot
prin ts,'  the  si ze  and  shape  of  the  bottom  of  the 
child  restraint  that  sits  on  the  seat , when  they 
Child  sa fety 
are  insta lled  on  a vehicle  seat.  These  differences 
make  it virtua lly impossib le  to  certify  compliance 
with  t he  requirements  for  advanced  airbags  with 
each  and  every  chi ld  restraint  that  has  ever  been 
sold  in the  past  or  will  be  sold  over  the  course  of 
the  usefu l life  of your  vehicle. 
For t his  reason,  the  United  States  National  High 
way  Traffic Safety  Adm inistrat ion  has  published  a 
li st  of  spec ific type,  makes  and  models  of  child 
restraints  that  must  be  used  to  cert ify  compli
ance  of  the  Advanced  Airbag  System  in your  ve hi
cle w ith  the  s uppression  r equirements  of  Federal 
Motor  Veh icle  Safety  S tanda rd  208.  These  child 
rest rain ts a re: 
Subpart  A  -Car bed  child  restraints 
Model  Manufactured on or 
after 
A ngel  Gua rd  A ngel  September  2S , 200 7 
R ide  AA2403FOF 
Subpart  B  -Rear-facing  child  restraints 
Model  Manufactured on or 
after 
Century  Smart Fit  4543  Decembe r 1,  1999 
Cosco  Ar riva  September  25,  2007 
22-013PAW  and  base 
22-999WHO 
E venflo  Discovery  Ad -December  1,  1999 
just  Right  212 
E venflo  First  Choi ce  De cembe r 1,  1999 
204 
Graco  Infant  8457  Decembe r 1,  1999 
Graco  Sn ug ride  September  25,  200
7 
Peg  Perego  Pr imo  Viag- September  2S,  2007 
g io  SIP  IMUNOOUS 
Subpart  C  -Forward-facing  and  convertible 
child  restraints 
Model  Manufactured on or 
after 
B rit a x Roundabout  September  2S,  200 7 
E 9L02xx 
Cosco To uriva 02519  December  1,  1999 
153  
Page 177 of 264
M N 
i? co ,...., \!) ..,., 
N ..,., ,...., 
The  all-wheel drive concept  is designed  for  high 
engine  power . Your vehicle  is  exceptionally pow
erful  and  has  excellent  driving  character istics 
both  under  normal  driving  conditions  and  on 
snow  and  ice.  Always  read  and  follow  safety  pre
cautions  <=> 
,&. 
Winter  tire s 
When  driving  in the  winter,  your  vehicle  with  all
wheel  drive  has  an  advantage,  even  with  regular 
tires.  In  winter  road  conditions  it  may  be  advisa
ble  to  mount  w inter  tires  (or  all-season  tires) for 
improved  driveability  and  braking:  these tires 
must  be  mounted  on 
all four  wheels. See  also 
<=> page 220, Winter  tires. 
Tire  chains 
Where  tire  chains  are  mandatory  on  certain 
roads,  this  normally  also  applies  to  vehicles  with 
all-wheel  drive <=> 
page 220, Snow  chains. 
Replacing  wheels/tires 
Vehicles  with  all-wheel  drive  must  a lways  have 
tires  of  the  same  size.  Also  avoid  tires  with  differ
ent  tread  depths.  For details  see  page 
<=> 
page  212,  New  tires  or wheels. 
Off-Road  driving? 
Your Audi  does  not  have  enough  ground  clear
ance  to  be  used  as  an  off-road  vehicle.  It  is there
fore  best  to  avoid  rough tracks  and  uneven ter
rain  as  much  as  possible.  Also  refer  to 
<=>page  177. 
A WARNING 
Always  adjust  your  driving to road  and  traffic 
conditions.  Do not  let  the extra  safety  afford
ed  by  all-wheel  drive tempt  you into  taking 
extra  risks. 
- Although  the  all-wheel  dr ive  is very  effec
t ive,  always  remember  that braking  capacity 
is  limited  by tire  traction.  You should  there
fore  not  drive  at  excessive  speeds  on  icy or 
slippery  road surfaces. 
- On  wet  road  surfaces,  be careful  not  to  dr ive 
too  fast  because  the  front wheels  could  be 
gin  to  slide  on  top  of  the  water  (aquap lan
ing).  If  this  shou ld occur,  you  will  have  no 
Smart  Technology 
warning  from  a sudden  increase  in engine 
speed  as  with  a front-wheel  drive  vehicle. 
Always  drive  at  speeds  which  are  suited  to  the  road  conditions  -risk  of  crash. 
Energy  management 
Starting  ability  is optimized 
Energy management  controls  the  distribution  of 
electrical  energy  and  thus  optimizes  the  availa
bility  of  electrical  energy  for  starting  the engine. 
If  a vehicle  with  a  conventional  energy  system  is 
not  driven  for  a  long  pe riod  of  time,  the  battery 
is  discharged  by  idling  current  consumers  (e.g. 
i mmobil izer).  In  certain  circumstances  it  can  re
su lt in  there  being  insufficient  energy  available  to 
start  the  engine. 
Intelligent  energy  management  in your  vehicle 
hand les  the  distribution  of  electrical  energy. 
Starting  ability  is markedly  improved  and  the  life 
of  the  battery  is extended. 
Basically,  energy  management  consists  of 
bat
tery  diagnosis , idling  current  management 
and 
dynamic  energy management. 
Battery  diagnosis 
Battery  diagnosis  continuously  determines  the 
state  of  the  battery . Sensors  determine  battery 
vo lta ge,  battery  current  and  battery tempera
tu re.  This  determines  the  current  state  of  charge 
and  the  power of  the  battery. 
Idling  current  management 
Idling  current  management  reduces energy  con
sumption  whi le  the  vehicle  is standing.  With  the 
ignition  switched  off,  it contro ls  the  energy  sup
ply to  the  various  electrical  components.  Data 
from  battery  diagnosis  is considered. 
Depending  on the  battery's  state  of  charge,  indi
vidual  consumers  are  gradually  turned  off  to pre
vent  excessive  discharge  of  the battery  and  thus 
maintain  starting  capability . 
Dynamic  energy  management 
While  the  vehicle  is  being  driven,  dynamic  energy 
management  distr ibutes  the  energy  generated  ..,. 
175  
Page 186 of 264
Care  and cleaning 
Care  and  cleaning 
General  information 
Regular,  proper  care  he lps  to  maintain  your  vehi 
cle's  value. 
It can  also  be  a  requirement  when 
submitting  warranty  claims  for  corrosion  damage 
and  paint  defects  on  the  body. 
The  necessary  care  products  can  be  obtained 
from  your  authorized  Audi  dealer . Read  and  fol
low  the  instructions  for  use  on  the  packaging. 
A WARNING 
-Using  cleaning  and  care  products  incorrectly 
can  be  dangerous  to  your  health. 
- Always  store  cleaning  and  care  products  out  of  reach  of  children  to  reduce  the  risk  of  poi
soning . 
@ For the  sake of the  environment 
-Preferably  use  environmentally-friendly 
products  when  buying  cleaning  agents. 
- Do not  dispose  of  leftover  cleaning  and  care 
products  with  household  trash . 
Car  washes 
The longer  that  deposits  remain  on  the  vehicle, 
the  more  the  surface  may  be  damaged.  High 
temperatures  such  as  those  caused  by sunlight 
increase  the  damaging  effect. 
Before  washing,  rinse 
off heavy  deposits  with 
p lenty  of  water. 
Stubborn  deposits  such  as bird  dropp ings  or  tree 
sap  are  best  removed with  plenty  of  water  and  a 
microfiber  cloth . 
A ls o, wash  the  underside  of your  veh icle  once 
road  salt  stops  be ing used  for  the  season . 
Pressure washers 
When  washing  your  veh icles  with  a  pressure 
washer,  always  follow  the  operating  instructions 
provided  with  the  pressure  washer.  This is espe
cially  important  in  regard  to  the  p ressure  and 
spray ing  distance.  Do  not  aim the spray  directly 
at  seals  on  side  windows,  doors,  the  hood,  the 
rear  lid or  the  sunroof*  or  at  tires,  rubber hoses, 
184  insulating 
material,  sensors*  or  camera  lenses*. 
Keep  a  distance  of  at  least  16 inches  (40  cm). 
Do  not  remove  snow  and  ice with  a pressure 
washe r. 
Never  use rotary  nozzles  or  high pressure  noz
zles. 
The  water  temperature  must  not  be  above  140  °F 
(60 °() . 
Automatic  car washes 
Spray off the  vehicle  before  washing. 
Make  sure  that the  w indows  and  roof*  are  closed 
and  the  windshie ld  wipers  are  off.  Follow  instruc
tions  from  the  car  wash  operator,  especially  if 
there  are  accessories  attached  to  your  vehicle. 
If  possible,  use  car  washes  that  do  not  have 
brushes. 
Washing by hand 
Clean  the  veh icle  starting  from  the  top and  work
i ng  down  using  a soft  sponge  or  cleaning  b rush . 
Use  solvent-free  cleaning  p roducts. 
Washing  vehicles with  matte  finish  paint by 
hand 
To avoid  damaging  the  paint  when  washing,  first 
remove  dust and large particles  from  your vehi
cle.  Insects,  grease  spots  and  fingerprints  are 
best  removed  with  a special  cleaner  for  matte 
finish  paint. 
Apply the  p roduct  using a  microfiber  cloth.  To 
avoid  damaging  the  paint  surface,  do  not  use  too 
much  pressure. 
Rinse  the  ve hicle thoroughly  with  water.  Then 
clean  using a neutra l shampoo  and a soft  micro
fiber  cloth . 
Rinse  the  veh icle  thoroughly  again  and  let  it  air 
dry.  Remove  any  water  residue using  a  shammy. 
A WARNING 
-On ly wash  the vehicle  when  the ignition  is 
off and  follow  the  instructions  from  the  car 
wash  operator  to  reduce the  risk  of  acc i
dents. 
- 
Page 200 of 264
Checking  and  F ill in g 
blink until you add  coo lant  and the  level has  been 
restored  to  normal.  Even though  there  is an e lec
tr ic coo lant  level sensor,  we still  recommend  you 
check the  coo lant  level from  t ime to  time. 
Coolant  los s 
Coolant  loss  may indicate  a leak in t he cooling 
system.  In the  event  of coolant  loss, the  cooling 
system  should  be inspected  immediately  by your 
authorized  Audi dealer.  It  is not  enough  merely 
to  add  coolant. 
I n a 
s e a led system,  losses  can occur only if the 
boiling point  of the  coo lant  is exceeded  as a  re
sult  of overheating. 
A WARNING 
The cooling system  is under  pressure  and  can 
get  very hot.  Reduce the  risk of scalding from 
hot  coolant  by following  these  steps . 
- Turn off the  engine  and  allow it to  coo l 
down . 
- Protect  your face,  hands  and  arms  from  es
caping fluid  and  steam  by covering the  cap 
with  a  large, thick  rag . 
-Turn the  cap slowly and  very carefully in a 
counter-clockw ise  d irection while applying 
light,  downward  pressure  on the  top  of the 
cap. 
- To avoid being  burned,  do not  spill ant i
freeze  or coolant  on the  exhaust  system  or  hot  eng ine parts . Under ce rtain  conditions, 
the  ethy lene  g lycol  in engine  coolant  can 
catch fire. 
{il) Note 
Do not  add  any type  of rad iator  leak sealant 
to your veh icle's  engine  coolant . Adding radia
to r repair f lu id  may adverse ly affect  the  func
tion  and  performance  of your  cooling  system 
and  could  resu lt  in damage  not covered  by 
your  New Vehicle Limited Warranty. 
Adding  coolant 
Be very careful  when  adding  engine  coolant . 
Before you check anything  in the  engine  compart
ment, 
alway s  re ad  an d heed  all WARN ING S 
198 
¢ A in Working  in the  engine  compartment  on 
page  191. 
Req uirement:  There must  be a  res idual amo unt 
of coo lant  in the  expans ion tank 
~CD-
.,,.  Turn off the  engine . 
.,,.  Let the  engine  cool down. 
.,,.  Place a thick rag ove r the  coolant  expansion 
tank 
¢ page  197,  fig.  164 and car efull y turn 
the  cap counter-clockwise 
~ .&_ . 
.,,. Add coo lant  mixed in the  correct  ratio 
~ page  196,  Coolant up to  the  MAX marking . 
.,,.  Make sure  that  the  flu id  level remains  stab le. 
Add more  coolant  if necessa ry . 
.,,.  Twist the  cap on aga in 
tightly . 
Replacement  engine  coo lant  must  conform  to  ex
act  specifications ¢ 
page  196,  Coolan t. 
We recommend  using  only coo lant  additive Gl2 + 
+ ,  Gl3 
or in an emergency Gl2+. Do not use a 
different  additive.  In an emergency  use  plain wa
ter  unt il you can get  the  correct  additive  and  can 
restore  the  correct  ratio. This should  be done  as 
soon  as  possible . 
If you have lost  a considerab le amount  of cool
ant,  then you should  add  cold antifree ze and  cold 
water  only when  the  engine  is cold. 
Always use 
new engine  coo lant  when  refilling. 
Do not  fil l coolant  above the  "MAX " mark.  Excess 
coolant  will be forced  out  through  the  pressure 
relief valve in the  cap when  the  engine  becomes 
hot. 
A WARNING 
- The cooling system  is under  pressure  and 
can get  very hot.  Reduce the  risk of scalding 
from  hot  coolant  by following these  steps. 
- Turn off the  eng ine and  allow  it to  coo l 
down. 
- Protect  you r face,  hands  and  arms  from 
escaping  fluid  and  steam  by covering the 
cap with  a large,  thick rag . 
- Turn the  cap s low ly and  ve ry  carefully  in a 
counter-clockw ise  direction  wh ile app ly ing 
li ght,  downward  p ressu re on the  top  o f 
the  cap.  ..,,.  
Page 225 of 264
also reduces  fuel  efficiency  and  tire tread  life, 
and  may  affect  the  vehicle's  handling and  stop
ping  ability . 
Please  note that  the  TPMS  is  not  a  substitute  for 
proper  tire  maintenance,  and  it  is  the driver's  re
sponsibility  to  maintain  correct  tire  pressure, 
even  if under-inflation  has  not  reached  the  level 
to  trigger  illumination  of  the  TPMS low tire  pres
sure  telltale. 
Your vehicle  has  also  been  equipped  with  a TPMS  malfunction  indicator  to  indicate when  the  sys
tem  is not  operating properly.  The TPMS mal
function  indicator  is combined  with  the  low  tire  pressure  telltale . When  the  system  detects  a 
malfunct ion,  the  telltale  will  flash  for  approxi
mately  one  minute  and  then remain  continuously 
illuminated.  This  sequence  will continue  upon 
subsequent  veh icle  start-ups  as long  as  the  mal
function  exists. 
When  the  malfunction  indicator  is illuminated, 
the  system  may  not  be  able  to  detect  or  signal 
low  tire  pressure  as  intended.  TPMS  malfunctions 
may  occur  for a variety  of  reasons, including  the 
installation  of  replacement  or  alternate  tires  or 
wheels  on  the  vehicle  that  prevent  the  TPMS 
from  functioning  properly.  Always  check  the 
TPMS malfunction  telltale  after  replacing  one  or  more  tires  or  wheels  on  your  vehicle  to  ensure 
that  the  replacement  or  alternate  tires  and 
wheels  allow  the  TPMS to  continue  to  function  properly. 
Wheels 
If  the  Tire Pressure Monitoring  System 
indicator  appears 
Appl ies to  vehicles : wi th  t ir e p ress ure mo nito rin g system 
The  tire pressure  indicator  in the  instrument 
cluster  informs  you  if  the  tire pressure  is  too  low 
or if  there  is a system  malfunction. 
Fig. 172 Instrument  cluster:  i ndicator  light  with  message 
Using  the  ABS sensors,  the  tire  pressure  monitor
ing  system  compares  the  tire  tread  circumference 
and  vibration  characteristics  of  the  individual 
tires . 
If the  pressure  changes  in one  or  more 
tires,  this  is indicated  in the  instrument cluster 
display  with  an  indicator  light 
[I] and  a  message . 
If only one  tire  is affected,  the  location  of that 
tire  will  be  indicated . 
The  tire  pressures  must  be stored  in the  Infotain
ment  system  again  each  time  the  pressures 
change  (switching  between  partial  and  full load 
pressure)  or  after  changing  or  replacing  a  tire on 
your  vehicle ¢ 
page  224. The  tire  pressure  moni
toring  system  only  monitors  the  tire  pressure  you  have  stored.  Refer  to  the  tire  pressure  label for 
the  recommended  tire  pressure  for  your  vehicle 
r=> page215,  fig.171. 
Tire  tread  circumference  and  vibration  character
istics  can  change  and  cause  a  tire  pressure  warn
ing  if: 
- the  tire  pressure  in  one  or  more  tires  is too  low . 
- the  tire  has  structural  damage. 
- the  tir e  was  replaced  or the  tire  pressure  was 
changed  and  it  was  not stored  ¢ 
page  224. 
-the  spare  t ire* is  installed. 
Indicator  lights 
[I] Loss of  pressure  in at  least  one  tire¢.& . 
Check the  tires  and  replace  or  repair if necessary . 
liJJ,-
223