
152 Airbag system
-If the air bag indicator light ¢ page 18
comes when the vehicle is be ing used,
have the system inspected immediately
by your autho rized Aud i dea ler . It is pos
s ible that the airbag will inflate when it
is not s upposed to, or w ill not inflate
when it sho uld.
PASSENGER AIR BAG OFF light
Fig. 162 Sect ion from t he in st rument pa nel : PASS EN
GER AIR BAG O FF ligh t
The PASSENGER AIR BAG OFF light is located
in the cen ter o f the instr ument panel
¢ fig . 162.
The PASSENGER AIR BAG OFF light will come
on an d stay on to te ll you when the fron t Ad
v a nce d Airb ag on t he passenger side h as been
turned off by the e lectronic control unit . If the
b ul b for the
PASSENGER A IR BAG O FF light
burns o ut, the airbag ind icator light
II wi ll
come on to signal a malfunction in the Ad
vanced A irbag System . Although the burned
out bulb w ill not change the way the front
passenger's frontal airbag works, it w ill no
longer be possib le to use the
PASSENGER AIR
BAG OFF
light to make sure that the ai rbag
on/off s tat us is correct for the occupant on
the front passenger seat. Have the airba g sys
tem i nspected immediate ly by your autho r
ized A udi dealer.
The PASSENGER AIR BAG OFF light will blink
for about 5 se cond s when :
-the ignit ion is switched on and
- the capac itive passenger detect ion system,
wh ich sw itches the front seat passenger 's
fron tal Advanced Airbag on and off, detects a change in the status of the front passen
ger seat.
As soon as the
PASSENGER AIR BAG OFF
li gh t stops b linking, a lways make sure tha t
the airbag s tatus (on or off) as shown by the
PASSENGER AIR BAG OFF light is proper for
the age, size and e lectrica l capacitance of the
person occupy ing the front passenge r seat.
Always make sure that the safety belt for the
front passenger seat is properly fastened .
The PASSENGER AIR BAG OFF light will
show the status of the front seat passenger 's
frontal Advanced Airbag a few seconds after
the ignition is sw itched on and the airbag in
dicator light go es off . The PASSENGER AIR
BAG OFF light :
-will stay on if the front passenger seat is not
occ upied;
- will stay on if the electrical capacitance
measured by the capacitive passenger de
tect ion system for the front passenger seat
equa ls the combined capacitance of an in
hnt up to abou t one year of age and one of
the rearw ard-facing o r forward-fac ing ch ild
restrai nts listed i n Fede ral Motor Vehicle
Safety Stan dard 2 08 wi th which the Ad
vanced Airbag System in your vehicle was certified; For a listing of the child restraints
that we re used to certify your vehicle's com
pliance w ith the U.S. Safety Standard
¢ page 167.
-will go out if the front passenger seat is oc
cupied by an adult as registered by the ca
pacitive passenger detection system .
- The
PASSENGER AIR BAG OFF light must
come on and stay on if the ignition is on
and ...
- a car bed has been installed on the front
passenger seat, or
- a rearward-facing child restraint has been
installed on the front passenger seat, or
- a forward-facing ch ild restra int has been in
stalled on the front passenger seat,
- and if the electrical capacitance registered
on t he front passenger seat is equal to or
less than the combined capaci tance of a typ-
ical 1 year-o ld i nfant and one of the
1111>

M N
0:: <.J 'SI: ,...., \!) 1.1"1 ,...., 1.1"1 ,....,
rearward-facing or forward-facing chi ld re
straints listed in Federa l Motor Vehicle Safe
ty Standard 208 w ith which the Advanced
Airbag System in your vehicle was certif ied.
I f the front passenger seat is not occupied,
the front airbag will not deploy, and the PAS
SENGER AIR BAG OF F light w ill stay on. Nev
er insta ll a rearward-fac ing ch ild restra int on
the front passenger seat, the safest place for
a child in any kind of child restraint is at o ne
of the seating positions on the rear seat
¢ page 141, Child restraints on the front seat
- some important things to know
and
¢ page 165, Child Safety .
If the PASSENGER AIR BAG light comes
on ...
If the PASSENGER AIR BAG OFF light comes
on when one of the cond itions l isted above is
met, be sure to check the light regularly to
make certain that the PASSENGER AIR BAG
OFF light stays on continuo usly whenever the
ignition is on.
If the PASSENGER AIR BAG
OFF light does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- reactivate the system by turning the ignition
off for more than 4 seconds and then turn ing it on again;
- remove and reinstall the chi ld restraint .
Make sure that the child restraint is properly
installed and that the safety belt for the
front passenger seat has been correct ly
routed through the child restraint as descri
bed in the chi ld restraint manufactu rer's in
structions;
- make sure that the convert ible locking re
t ractor on t he safety be lt for the front pas
senger seat has been act ivate d and that the
sa fety belt has been pulled tight .
- make su re that no electr ica l device (such as
a laptop, CD player, elect ro nic games devi ce,
power inverter or seat heater for chi ld seats)
is p laced or used on the front passenge r
seat if the device is connected to the 12-volt
socket or the c igarette lighter socket;
A irbag system 153
- make sure that no seat heater has been ret
rofitted o r otherwise added to the front pas
senge r seat;
- make sure that nothing can interfere with
the safety belt buck les and that they are not
obstructed;
- make sure t hat there are no wet objects
(s uch as a wet towe l) and no water or other
liquids on the front passenger seat cushion .
If the PASSENGER AIR BAG light still
do es not c ome on ...
If the PASSENGER AIR BAG OFF light still
does not come on and does not stay on con
ti nu ously (when the ignition is switched on),
- take the child restraint off the front passen -
ger seat and install it proper ly at one of the
rear seat positions. Have the airbag system
inspected by your Audi dealer immed iate ly.
- move the child to a rear seat position and
make sure that the c hild is properly restra in
ed in a ch ild restra int that is appropriate for
its size and age.
Th e PASSENGER AIR BAG light should
NOT come on .. .
The PASSENGER AIR BAG OFF light should
NOT come on when the ignit io n is on and an
adult is s itting in a proper seating posit ion on
the front passenge r seat. If the PASSENGER
AIR BAG OFF light comes on and stays on o r
fla shes for about S seconds wh ile d riving, un
der these c ircumstances, make sure that:
- the adult on the front passenge r seat is
p rope rly seated on the ce nte r of the sea t
cushion with his or her back u p ag ainst the
backrest and the backrest is not re clined,
- t he adult i s not tak ing we ight off the sea t by
holding on to the passenger assis t handle
above the fron t passenger door or s upport
ing their weight on the armrest,
- the sa fe ty belt is being proper ly wo rn and
that the re is not a lot of s lack in the safety
be lt webbing,
- t here are no aftermar ket seat covers o r
cushions or other things (s uch as blankets)
on the front passenger seat that might
cause the capacitive passenger detect ion
•
•

154 Airbag sys te m
system to miscalcu late electrical capac i
tance .
Important safety instructions on
monitoring the Advanced Airbag System
.8_ WARNING
-If the s tatus of the Adv a need A irbag Sys
tem has changed while the vehicle is moving, the
PASSENGE R AI R BAG OFF
light blinks for about 5 seconds to catch
the driver's attent ion. If this happens, al
ways stop as soon as it is safe to do so
and check the steps described above.
- If the
PASSEN GER AI R BAG OFF light
does not go off when an adult who is not
very small is sitting on the front passen ger seat after taking the steps descr ibed
above, make sure the adult is properly
sea ted and rest rained at one of the rear
sea ting pos it ions. Have the a irbag sys
tem inspected by your authorized Audi
dealer before transporting anyone on the
front passenger seat.
.8_ WARNING
An air bag system that is not funct io ning
properly cannot provide supplemental pro
tect ion in a frontal crash.
- If the airbag indicator light ¢
page 18
comes when the vehicle is be ing used,
have the system inspected immediate ly
by your authorized Aud i dea ler. It is pos
sible that the airbag will inflate when it
is not s upposed to, or w ill not i nflate
w hen it should.
.8_ WARNING
If the front airbag inflates, a c hild witho ut
a child restra int, or in a rearw ard-fa cing
child sa fe ty seat, or in a forward- facing
child restrain t that has not been properly
installed will be serious ly inj ured and can
be killed.
- Even though your vehi cle is equipped
with an Advanced Airbag System, make certain that a ll children, especially 12 years and younger, always
ride on the
back seat properly restrained for their
age and size.
- Always install forward or rear-facing
child seats on the rear seat -even with
an Advanced A irbag System .
- If you must install a rearward-facing
child seat on the front passenger seat
because of exceptional circumstances
and the
PASSENGER AIR BAG OFF light
does not appear and stay on, immediate ly install the rear-facing child seat in a
rea r seat ing pos ition and h ave the airb ag
sys tem inspec ted by yo ur Audi dealer.
- If , in exceptiona l circumstances, you
m ust ins tall a forwar d-fac ing ch ild re
s t raint on the front passenger seat, al
ways move the seat into its rearmost po
sition in the seat's fore and aft adjust
ment range, as far away from the a irbag
as poss ible. The backrest must be ad just
ed to an upright pos ition. Make sure that
the
PASSENGER AIR BAG OFF light
comes on and stays on all the time when
eve r the ignit ion is switched on .
.8_ WARNING
-
- I f the PASSENGER AIR BAG OFF light
does not go o ut when an ad ult is sit ting
on the front passenger se at aft er taking
the steps described above, make sure the
a dul t is prope rly seate d and restrained at
one of the rea r seating positions.
- Have the airbag system inspected by
your Audi dea le r before t ransporting
anyone on the front passenger seat.
(D Tips
If the capac itive passenger detec tion sys
tem determines that the front passenger
seat is empty, the fronta l airbag on the
passenger side will be t urned off, and the
PASSENGER AIR BAG OFF light will stay
on.

156 Airbag system
www.dtsc.ca.gov/hazardouswaste/per
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts with pretensioners are
scrapped, all applicable laws and regula
tions must be observed. Your authorized
Audi dealer is familiar with these require
ments 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 Sys
tem performs in a crash. For example, using
tire-rim combinations not approved by Audi,
lowering the vehicle, changing the stiffness of
the suspension, including the springs, suspen
sion 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 exam
ple, increase the force levels measured 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 meas ured by the sensors and prevent the airbag
from deploying when it should.
A WARNING
Changing the vehicle's suspension includ
ing use of unapproved tire-rim combina
tions can change Advanced Airbag per
formance and increase the risk of serious
personal injury in a crash.
- Never install suspension components
that do not have the same performance characteristics as the components origi
nally installed on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
Knee airbags
Description of knee airbags
Applies to vehicles: with knee airbags
The knee airbag system can provide supple
mental protection to properly restrained
front seat occupants .
Fig. 163 Driver 's knee airbag
The driver knee airbag is in the instrument
panel underneath the steering wheel
¢ fig. 163, the airbag for the passenger is at
about the same height in the instrument pan
el underneath the glove compartment.
The knee airbag offers additional protection
to the driver 's and passenger's knees and up
per and lower thigh areas and supplements
the protection provided by the safety belts.
If the front airbags deploy, the knee airbags
also dep loy in frontal collisions when the de
ployment threshold stored in the control unit
is met
<=> page 149, More important things to
know about front airbags .
In addition to their normal safety function,
safety belts help keep the driver or front pas
senger in position in a frontal collision so that
the airbags can provide supplemental protec
tion.
The airbag system is not a substitute for your
safety belt . Rather, it is part of the overall oc
cupant restraint system in your vehicle. Al
ways remember that the airbag system can
only help to protect you if you are wearing
your safety belt and wearing it properly. This
is why you should always wear your safety
belt, not just because the law requires you to
do so
¢ page 130 , General notes. ..,.

"' N
a:: I.J "". rl I.O
"' rl
"' rl
Remember too, airbags will deploy only once
and only in certain kinds of accidents -your
safety belts are a lways there to offer protec
tion in those acc idents in which airbags are
not supposed to deploy or when they have al
ready deployed, for example when your vehi
cle str ikes or is struck by another afte r the
fi rst coll is ion.
This is just one of the reasons why an a irbag is
not a substitute for the safety belt . The airbag
system wo rks most effectively when used with
the safety belts . Therefore, always wear your
safety bel ts correctly .
It is important to remember that while the
supplemental knee a irbag system is des igned
to reduce the like lihood of serious injur ies,
o ther in juries, fo r example, swel ling , bruising
and minor abras io ns and frict ion bu rns ca n al
so occur when an airbag in flates.
The knee airbag system basically consists
of :
-The elec tronic control mod ule
- T wo inf latab le airbags (airbag and gas gen-
erato r), one for the driver and one for the
front passenger
- T he airbag ind icator light in the instrument
pane l
The knee airbag system will not deploy:
-when the ign ition is switc hed off
- in frontal collisions w hen the decelerat ion
measured by the control unit is too low
- in s ide collisions
- in rear-end collisions
- in ro llovers
- in the event of a system malfunct io n (wa rn -
i ng/indicator ligh t is on)
r::!>page 18.
& WARNING
- Safety belts and the airbag system can
only p rov ide protection when occ upants
are in the proper seating posit ion
c::>page 149.
-If the airbag indicator light c::> page 18
comes when the vehicle is be ing used,
have the system inspected immediately
A irba g sy stem 15 7
by your authorized A udi dealer. It is pos
sib le that the airbag will inflate when it
is not supposed to , or will not inflate
when it should .
How knee airbags work
Applies to vehicles: with knee airbags
The risk of injury to the leg area can be re
duced by fully inflated knee airbags.
~ N 0 :..c---0
i::....---ali
Fi g. 164 In flated a irbags protect ing in a fronta l coll i·
s ion
The knee airbag system has been designed so
that the airbags for the driver and front pas
senger deploy in certain but not all frontal
collisions.
If the front airbags dep loy, the knee airbags
also dep loy in fronta l collisions when the de
ployment th resho ld stored in the control unit
is met.
When the system deploys, the ai rbags fill
with a propellant gas, and inflate between the l ower part of the instrument pane l and the
driver and t he lower part of the instrument
panel and the front passenger
c::> page 149,
fig . 161 .
Although they are not a soft pi llow, they can
"cushion" the impact and in t his way they can
help to reduce the risk of injury to the lower
extremit ies .
A ll of th is takes place in the blink o f an eye, so
fast that many people don't even realize that
the a irbags have deployed. The airbags a lso
i nfla te with a g reat dea l of fo rce and i t is im
po rtant for occupant safety t hat nothing
sho uld be in their way whe n they deploy. ..,.

M N
0:: <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
caused by airbags when they inflate, particu
l arly when the occupant sitting next to it is
not seated properly. The s ide a irbag for the
front passenger seat can be used with proper ly installed chi ld restraints. Please be sure to
read the important information and warnings
whenever us ing a child restraint in a veh icle :
Safety belts
c::;, page 130, A irbag system
c::;, page 139, Child safety ~ page 165.
The side airbag system basically con sists of:
- the e lectronic control module and external
s ide impact sensors
- the two airbags located in the sides of the
front backrests and the two airbags* located
in the rear backrest
- the airbag warning light in the instrument
cluster.
The airbag system is monito red elect ron ica lly
to make certain that it is functioning properly
at all times. Each time you switch on the igni
tion, the airbag system indicator light will
come on for a few seconds (self diagnostics) .
T he side airbag system supplements the safe
ty belts and can help to reduce the risk of in
jury to the driver's, front and rear passenger's upper torso on t he side of the vehicle that is
struck in a side collision . The airbag deploys
only in s ide impac ts and on ly when the veh icle
acceleration registered by the control u nit is
hi gh enough . If this rate is below the refer
e nce va lue progr ammed i nto the con trol un it,
the side airbags will not be triggered, even
though the ca r may be badly damaged as a re
sult of the collision . It is not possible to de
f ine an a irbag trigger ing range that will cover
eve ry possible angle of impact, since the cir
cumstances will vary considerably between
one co llision and another . Important facto rs
in clude, for examp le, the natu re (hard o r soft)
of the impacting objec t, the ang le of impact ,
ve hicl e speed, etc. ~
page 1 60, Impor tan t
safety instructions on the side airbag sy stem.
Aside from the ir no rmal safety function, safe
ty belts wor k to he lp keep the d river or front
passenger in posi tion in the event of a side
Airbag system 159
collision so that the side airbags can provide
protection.
T he airbag system is
not a substi tute fo r your
s af ety belt . Ra ther, it is part o f the over all oc
cupant restra int system in you r vehicle . A l
ways remember that the side airbag system
can on ly help to protect yo u if you are wearing
your safety be lt and wearing it proper ly. This
is another reason why you should always wear
your safety be lts, not just because the law re
quires you to do so c::;,
page 130, General
notes.
It is important to remember that wh ile the
suppleme nta l side airbag system is desig ned
to r educe the likelihood of ser ious injuries,
othe r injur ies, for exampl e, swelling, bru is ing ,
friction bur ns and m ino r abrasions can a lso be
associ ated w ith dep loye d side airbags. Re
member too, si de a irbags w ill dep loy o nly
once an d only in ce rtain kinds of accidents -
yo ur safety be lts a re a lways there to offer p ro
tection .
Vehicle damage, repair costs o r even the lack
of ve hicle damage are not necessarily a n indi
cation of ove r-sensitive or failed airbag activa
tion. In some coll is ions, both front and side
a irbags may inflate. Remember too, that air
bags will deploy only once a nd only in certain
ki nds of col lisions - you r safety belts a re a l
ways t he re to offe r protection in those acc i
dents i n which a irbags are not supposed to
deploy or when they have a lready deployed .
The side airbag system will not deploy:
-when the ignit io n is switched off
- in side co llisions whe n the acceleration
meas ured by t he sensor is too low
- in front-end collisions
- in rear -end co llisions
- in rollove rs .
In some types of accidents the front airbags,
s ide cu rtain airbags and s ide a irbags may be
t rigge red together. .,,. •
•

162 Airbag sys tem
The side curtain airbags are located on both
sides of the interior above the front and rear
side windows ~
fig. 167. They are ident ified
by the word "AIRBAG" on the windshie ld
frame and the center roof p illar.
The side curtain airbag system supp lements
the safety belts and can help to reduce the
risk of injury for occupants' heads and upper
torso on the side of the vehicle that is struck
in a side co llision . The side curtain airbag in
flates in s ide impacts and only when the veh i
cle acce lerat ion reg istered by the contro l unit
is high enoug h. If th is rate is below the refe r
ence va lue programmed i nto the control un it,
the side curtain airbag wi ll not be triggered,
even though the car may be badly damaged as
a result of the collision . It is not possible to
define an airbag triggering range that will
cover every possible angle of impact, since the
circumstances will vary cons iderably between
one co llision and another. Important factors
i nclude, for example, the nature (hard or soft)
of the impacting object, the ang le of impact,
vehi cle speed, etc.
~ page 163, How side cur
tain airbags work.
As ide from the ir normal safety function, safe
ty belts work to he lp keep the driver or front
passenger in position in the event of a co lli
sion so that the side curta in airbags can pro
vide protection.
The airbag system is not a subst itute for you r
safety belt. Rathe r, it is pa rt of the overall oc
cupant res traint system in your ve hicle. Al
ways remember that the airbag system can
only help to protect you if you are wearing
your safety be lt and wearing it properly. This
is another reason why you sho uld always wear
your safety belts, not just because the law re
qu ires you to do so
Q page 130, General
notes.
It is important to remember that while the
side curta in a irbag system is designed to help
reduce the likelihood of serious injuries, other
injuries, for example, swell ing, bruisi ng, fric
tion burns and m ino r abrasions can also be as
sociated with these a irbags upon deployment.
Remembe r too, these airbags w ill dep loy only once and on
ly in certain kinds of accidents -
your safety belts are always there to offer pro
tection.
The side curtain a irbag system basically
con sists of :
-The e lectronic control module and external
side impact sensors
- The side curtain airbags above the front and
rear side windows
- The airbag indicator light in the instrument panel
T he airbag system is mon itored e lectronically
to make ce rtain i t is func tioning prope rly at all
times . Each time you switch on the ignition,
the airbag system indicator light will come on
for a few seconds (self diagnostics).
The side curtain airbag i s not activated :
-if the ignition is sw itched off,
- in side co llisions when the acceleration
measured by the se nsor is too low,
- in rear-end col lisions.
_&. WARNING
- Safety belts and the airbag system will
only provide protection when occupants
are in the proper seating posi tion
¢ page 53, General recommendations.
- If the ai rbag ind icator light Q page 18
comes when the veh icle is being used,
have the system inspected immediately
by your authorized A udi dealer. It is pos
sible that the airbag will inflate when it
is not supposed to, or will not inflate
when it should.
.

166 Child Safety
-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 in 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 air
bag system inspected immediately by
your Audi dealer.
_&, WARNING
- Forward-facing child seats installed on
the front passenger seat may interfere
with the deployment of the airbag and
cause serious personal injury to the
child.
- If exceptional circumstances require the
use of a forward-facing child restraint on
the front passenger 's seat, the child's
safety and well-being require the follow ing special precautions to be taken:
- Always make sure that the forward-fac
ing seat has been designed and certi
fied by its manufacturer for use on a
front passenger seat with a front and
side airbag.
- Always carefully follow the manufac
turer's instructions provided with the
child seat or infant carrier.
- Never install a child restraint without a
properly attached top tether strap if
the child restraint manufacturer's in
structions require the top tether strap
to be used.
- Never put the forward-facing child re
straint up against or very near the in
strument panel.
- Always set the safety belt upper an
chorage to the adjustment position
that permits proper installation in ac
cordance with the child restraint manu
facturer's instructions.
-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 in
stalling the child restraint. The back
rest must be adjusted to an upright po
sition .
- Always make sure that nothing pre
vents the front passenger's seat from
being moved to the rearmost position
in its fore and aft adjustment range.
- Never place objects on the seat (such
as a laptop, CD player, electronic
games device, power inverter or seat
heater for child seats) . These may in
fluence the electrical capacitance
measured by the capacitive passenger
detection system and can also fly
around in an accident and cause serious
personal injury.
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat
heater for child seats) on the front pas
senger seat if the device is connected
to the 12 -volt socket or the cigarette
lighter socket.
- If a seat heater has been retrofitted or
otherwise added to the front passen
ger seat, never install any child re
straint system on this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or
other liquids on the front passenger
seat cushion .
- Always make sure that the
PASSENGER
AIR BAG OFF
light comes on and stays
on all the time whenever the ignition is
switched on.
- If the PASSENGER AIR BAG OFF light
does not come on and stay on, immedi
ately install the forward-facing child seat in a rear seating position and have
the airbag system inspected by your
authori zed Audi dealer.
- Always buckle the child seat firmly in
place even if a child is not sitting in it.
A loose child seat can fly around during
a sudden stop or in a collision.
~