Page 161 of 306

things on the seat cushion can have the
same eff ect. I f the front passen ger fron
tal airbag is turned on, the
PASSENGER
AIR BAG OFF
light light will go out.
How the Advanced Airbag System
components work together
The fron t Advanced Airbag System and the
side airbags supplement the protection of
fered by the front three -point safety be lts
with p retensioners and load limiters and the
adjustab le head restraints to he lp reduce the
risk of injury in a wide range of accident and
crash situat ions. Be sure to read the impor
tant information about safety and heed the
WARNINGS in this chapter .
Dep loyment of the Advanced Airbag System
and the act ivation of the safety be lt preten
sioners depend on the dece lerat ion measured
by the crash sensors and registered by the
e lectronic control un it. The amount of infla
tion of the front airbags can also be adapted to the front seat posi tion, depend ing on the
d istance between the respective front seat
and the steering whee l or instrument panel as
registe red by sensors in the seats. Crash se
verity depends on speed and deceleration as
well as the mass and stiffness of the vehicle
or object involved in the crash .
On the passenger s ide, regard less of safety
be lt use, the front passenger f ronta l airbag
will be turned off if the electrical capacitance
measured by the capac itive passenger detec
tion system on the front passenger seat is less
tha n the amount programmed in the electron
ic control unit. The front passenger fronta l air
bag will a lso be turned off if the capa cita nce
measured by the system for the front pa ssen
ger seat equa ls t hat of an infant of abo ut one
yea r of age in one o f the child seats that was
used to cert ify the Advanced Airbag System
under Federal Motor Vehicle Safety Standard
208. The
PASSENGER AIR BAG OFF li ght
comes on and stays on to tell you when t he
front Adva nced Airbag System o n the passen
ger s ide has been turned off~
page 162 .
Airba g sy stem 159
A WARNING
To reduce the risk of injury w hen an airbag
in flates, always wear safety be lts p ro perly.
- If you are unrestra ined, leaning forward,
sitt ing s ideways or o ut of pos ition in any
way, your ris k of injury is m uc h higher.
- You will a lso receive serious injuries and
co uld even be killed if yo u are up aga inst
the airbag o r too close to it when it in
flates -even w it h an Advanced A irbag
~ page 149.
More important things to know about
front airbags
Fi g. 16 3 In flated front a irbags
Safety belts a re important to he lp keep front
seat occupants in the proper seated position
so that ai rbags can unfold p roper ly and pro
v ide s upplement al pro tect ion in a fron tal col
lis ion .
T he front airbags a re des igned to provide ad
di tional protection fo r the chest and fa ce of
the driver a nd the front seat p assenger when :
- safety belts are worn properly,
- the seats have been positioned so that the
occupant is properly seated as far as poss i
b le from th e airbag,
- and the head restraints have been properly adjusted .
Because airbags inflate in the bli nk of an eye
with great force, th ings you have on your lap
or have p laced on the seat cou ld become dan
gerous p ro jecti les, and be pushed in to you if
t h e a irbag inf lates.
When an airbag deploys, fine dust is re leased.
This is norma l and is not caused by a fire i n .,,.
Page 162 of 306

160 Airbag sys te m
the vehicle. This dust is made up most ly of a
powder used to lubricate the airbags as they
deploy . It cou ld irritate sk in .
I t is important to remember that whi le the
supp lemental airbag system is designed to re
duce the likelihood of serious injuries, other
in ju ries, for example swelling, bruising and
minor abrasions, can also happen when air
bags inflate. Airbags do not protect the arms
or the lower parts of the body . Front airbags
supplement the three-poi nt safety belts only
in some frontal co llisions in which the vehicle
dece lera tion is high enough to deploy the air
bags.
Front airbags will not d eploy:
- if the ignit ion is switched off when a crash
occurs,
- in s ide collisions,
- in rear-end collisions,
- in ro llovers,
- when the crash deceleration measured by
the airbag system is less than the minimum
threshold needed for airbag deployment as
registered by the electronic control unit.
Th e front pa ssenger airbag al so will not
d epl oy :
-when the front passenger seat is not occu
pied,
- when the electrical capacitance measured by
the capacitive passenger detection system
for the front passenger seat indicates that
the passenger side frontal airbag must be
switched off by the electronic control unit (the
PASSENGER A IR B AG OFF light
c::> page 162 and how they wo rk comes on
and stays on).
.&_ WARNING
Sitting in the wrong position can inc rease
the risk of serious injury in crashes .
- To reduce the r isk of injury when the air
bags inflate, the driver and passengers
must always sit in an upright position,
must not lean against or place any part of their body too close to the area where
the airbags are
located .
- Occupants who are unbelted, out of posi
tion or too close to the airbag can be se
rious ly injured by an airbag as it unfolds
with great force in the blink of an eye
c::> page 151 .
.&_ WARNING
--A child in a rearward-fac ing ch ild seat in -
stalled on the front passenger seat will be
se riously inju red and can be killed if t he
front ai rbag inflates - even w ith an Ad
vanced A irbag System.
- The inflating airbag will h it the c hild seat
or infant car rier with great force and will
smash the child sea t and chi ld against
the backrest, center armrest, door or
roof.
- Always install rear -fac ing chi ld seats on
the rear seat.
- If you m ust insta ll a rearward fac ing
chi ld seat on the front passenger seat
because of exceptional circumstances
and the PAS SENGER AIR BAG O FF light
does not come on and stay on, immed i
ately install the rear-facing child seat in a rear seat ing pos ition and have the airbag
system inspected by you r Audi dealer .
.&_ WARNING
= -
Objects between you and the airbag will
i ncrease the r is k of injury in a crash by in
terfering with the way the a irbag unfolds
or by be ing p ushed in to you as the airbag
i nflates.
- Neve r hold things in yo ur hands or on
your lap when the veh icle is in use.
- Never transpo rt items on o r in the a rea
of the front p assenger sea t. Objects
could move into the a rea of the front air
bags during braking or other sudden ma
neuvers and become dangero us projec
tiles that can cause ser ious personal in-
jury if the a irbags inf late. ..,.
Page 163 of 306

-Never place or attach accessories or o th
er objects (such as cup hol ders, tele
phone brackets, large, heavy or bulky ob
jects) on the doors, over or near the area
marked ''AIRBAG" on the steering wheel,
instrument panel, seat backrests or be
tween those a reas and yourself. These
objects co uld cause injury in a crash, es
pecially when the airbags inflate .
- Never recline the front passenger's seat
to transport objec ts. Items can also
move into the area o f the side airbag or
the front airbag during braking or in a
sudden maneuver . Objects near the air
bags can become project iles and cause
injury, part icularly when the seat is re
cl ined .
- Never place or transport ob jects on the
front passenger seat. Objects on the
front passenger seat could cause the ca pacitive senso r in the seat to s ignal to
airbag system that the seat is occupied
by a person when it in fa ct is not, o r that
the person on the se at is he avier than he
or she actually is. The change in electric
capacitance beca use of such objects can
cause the passenger front airbag to be
turned on when it sho uld be
off, or can
cause the airbag to work in a way that is
different from the way it wou ld have
worked w ithout objects on the seat.
- Always make sure that there is nothing
on the front passenger seat that will
cause the capacitive passenge r detection
system in the s eat to s ignal to the A irbag
System that the seat is oc cupied by a
pers on when it is not, or to sign al that it
is occupied by someone who is heavier
than the pe rson actually s itting on the
seat . The presence of an object co uld
cause the passenger front a irbag to be
turned on when it sho uld be
off, or co uld
cause the airbag to work in a way that is
different from the way it wou ld have
worked w ithout the object on the seat. A
irbag
sys tem 161
A WARNING
The fine dust created when airbags deploy
can cause breathing prob lems fo r people
with a history of as thma or other breath
ing cond itions.
- To reduce the risk of breath ing problems,
those wi th asthma o r other respiratory
conditions s hou ld get fresh air r ight
away by get ting o ut o f the veh icle or
open ing win dows or do ors.
- If you are in a collision in which airbags
deploy, was h your ha nds and fa ce with
mild soap and wate r be fore eating.
- Be ca reful not to get the dust in to your
eyes, o r into any c uts or sc ratches.
- If the resid ue should get into your eyes,
f lus h t hem w ith wa te r.
Monitoring the
Advanced Airbag System
fl~ Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advan ced Airbag System: the airbag
monitoring indi cator light and the
PASSEN
GER AIR BAG O FF
light.
The Advanced A irbag System ( includ ing the
electron ic co ntro l unit, sensor circu its and sys
tem wir ing) is monitored con tinuously to
make sure that it is functio ning properly
whenever the ignition is on. Each time you
switch on the ignition, the airbag monitor ing
indicator light
fl will come on for a few sec
onds (self diagnost ics).
The sy stem must be in spected when the
indicator light
I :
- does not come on when the ignition is
sw itched on,
- does not go out a few seconds after you
have switched on the ignit ion, or
- comes on while driv ing.
If an airbag system malfunc tion is detec ted,
the indicator light wi ll first start f lashing to
catch the driver's attention and then stay on
llo-
•
•
Page 164 of 306

162 Airbag system
continuously to serve as a constant reminder
to have the system inspected immediately.
If a malfunction occurs that turns the front
a ir bag on the passenger side off, the
PAS SEN
GER AIR BAG OFF
light will come on and stay
on whenever the ignition is on.
.&_ WARNING
An airbag system that is not functioning
properly cannot provide supplemental pro
tection in a frontal crash.
- If the airbag indicator light
c::> page 19
comes when the vehicle is be ing used,
have t he system inspected immediately
by your authorized Aud i dea ler . It is pos
sible that the airbag will inf late when it
is not supposed to, or w ill not inflate
when it sho uld.
PASSENGER AIR BAG OFF light
Fig. 164 Section from the inst rument panel : PASSEN
GER AIR BAG O FF light
The PAS SENGER AIR BAG OFF Light is Located
in the cen ter of the instrument panel
c::>fig . 164.
The PASSENGER AIR BAG OFF Light will come
on and stay on to tell you when the front Ad
vanced A irbag on the passenger side has been
turned off by the e lectronic control unit . If the
bu lb for the
PAS SENGER AIR BAG OFF Light
burns out, the a irbag ind icator light
fl will
come on to signal a malfunction in the Ad·
vanced Airbag System . Although the burned
out bulb will not change the way the front
passenger's frontal airbag works, it w ill no
L onger be possib le to use the
PASSENGER AIR
BAG OFF
Light to make sure tha t the ai rbag on/off status is correct for the occ
upant on
the front passenger seat . Have the airbag sys
tem inspected immediately by your author
ized Audi dea ler.
The PASSENGER AIR BAG OFF light will blink
for about 5 second s when:
- t he ignition is sw itched on and
- the capacit ive passenger detection system,
which switc hes the front seat passenger's
frontal 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
l igh t stops b linking, a lways make sure tha t
the a irbag status (on or off) as shown by the
PAS SENGER AIR BAG OFF Light is proper for
the age, size and e lectrical capacitance of the
person occupy ing the front passenger seat.
Always make sure that the safety belt for the
front passenger seat is properly fastened .
The PASSENGER AIR BAG OF F light will
s ho w the status of the front seat pass enger 's
frontal Ad van ced Air bag a few seconds after
the ign ition is sw itched on and the airbag in
dicator light go es off. The PA SSENG ER AIR
BAG OFF li ght :
-will stay on if the front passenger seat is not
occupied;
- will stay on if the e lectrical capacitance
measured by the capacitive passenger de
tect ion system for the front passenger seat
equa ls the combined capacitance of an in
fant up to about one yea r of age and one of
the rearward-facing or forward-fac ing ch ild
restrai nts listed i n Federal Motor Vehicle
Safety Standard 208 with which the Ad
vanced Airbag System in your vehicle was
certified; For a Listing of the child restraints
that were used to certify your vehicle's com
pliance with the U.S. Safety Standard
c::> page 177.
- will go out if the front passenger seat is oc
cupied by an adult as registered by the ca
pacitive passenger detection system.
Page 165 of 306

-The PA SS ENGER AIR BAG OFF light must
come on and stay on if the ignition is on
and . ..
- a car bed has been insta lled on the front
passenger seat, or
- a rearward -facing chi ld restraint has been
installed on the front passenger seat, or
- a fo rward-facing child restraint has been in
stalled on the front passenger seat,
- and if the e lectr ica l capaci tance registered
on the front passenger seat is equal to or
l ess than the combined capacitance of a typ
ical 1 year-old infant and one of the rear
ward-facing or forward -facing child re
stra ints listed in Federal Motor Veh icle Safe
ty Standard 208 w ith which the Advanced
Airbag System in your vehicle was certified.
If the front passenger seat is not occupied,
the front airbag will not deploy, and the
P A S·
SE NG ER AIR BA G OFF
light w ill stay on . Nev
er install a rearward-fac ing ch ild restra int on
the front passenger seat, the safest place fo r
a child in any ki nd of child restraint is at o ne
of the seati ng positions on the rear seat
¢ page 151, Child restraints on the front seat
- some important things to know
and
¢ page 175, Child Safety .
If the PASSENGER AIR BAG light com es
on ...
If the PASSENGER AIR BAG OFF li ght comes
on when one of the conditions listed above is met, be sure to check the light regularly to
make certa in that the
PA SSENGER AIR BAG
OFF
light stays on cont inuous ly whenever the
ignit ion is on.
If the PA SS ENG ER A IR BAG
OFF
li ght does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- react ivate the system by turning the ignition
off for more than 4 seconds and then turn
i ng it on again;
- remove and reinstall the chi ld restraint .
Make sure that the child restraint is properly
installed and that t he safety be lt fo r the
front passenger seat has been correct ly
ro uted through the child rest raint as descr i-
A irbag system 163
bed in the child restraint manufacturer's in
structions;
- make sure that the convertible locking fea
ture on the safety belt for the front passen
ger seat has been activated and that the
safety belt has been pulled tight.
- make sure t hat no e lectrical device (such as
a laptop, CD p layer, e lectronic games device,
power inverter or seat heater for ch ild seats)
is placed or used on the front passenger
seat if the dev ice is connected to the 12-volt
socket or the cigarette l ighter socket;
- make sure that no seat heater has been ret
rofitted or othe rwise added to the front pas
senger seat;
- make sure that nothing can interfere with
the safety belt buckles and that they are not
obst ructed;
- 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 .
If the PASSENGER AIR BAG light still
does not come on ...
If the PASSENGER AIR BAG OFF light still
does not come on and does not stay on con
tinuously (whe n the ignition is switched on),
- take the child restra int off the front passen-
ger seat and install it properly at one of the
rear seat positions . Have the airbag system
inspected by yo ur Audi dealer immed iate ly.
- move the ch ild to a rear seat position and
make sure t hat the c hild is properly restra in
ed in a ch ild restra int that is app rop riate fo r
its size and age.
The PASSENGER AIR BAG light should
NOT come on .. .
The PAS SENGER AIR BAG OFF lig ht sho uld
NOT come on when t he ignit io n i s on and an
adult is s itting in a proper seating position on
the front passenger seat . If the
PASSENGER
AIR BAG O FF
light comes on and stays on or
flashes for about 5 seconds wh ile driving, un
der these c ircumstances, make sure that:
- the adult on the front passenger seat is
properly seated on the center of the seat
•
•
Page 166 of 306

164 Airbag sys te m
cushion wit h his or her back up against the
backrest and the backrest is n ot reclined,
- the adu lt is not taking weight off the seat by
holding on to the passenger assist handle
above the front passenger door or support
ing their weight on the armrest,
- the safety be lt is being properly worn and
that there is not a lot of slack in the safety
belt webbing,
- there are no aftermarket seat covers or
cushions or other things (such as b lankets)
on the front passenger seat that might
cause the capacitive passenger detection
system to miscalculate electrical capac i
tance .
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
-If the status of the Advanced A irbag Sys
tem has changed wh ile the vehicle is
moving, the
PASSENGER AIR BAG OFF
light blinks for about 5 seconds to catch
the drive r's attent ion.
If this happens, al
ways s top as soon as it is safe to do so
and check the steps described above.
- If the
PASSENGER AIR BAG OFF light
does not go off when an adu lt who is no t
very small is sitting on the front passen
ger seat after taking the steps described
above, make sure the adult is properly
seated and restrained at one of the rear
seating pos itions. Have the a irbag sys
tem inspected by your authorized Audi
dealer before transpo rting anyone on the
front passenger seat.
A WARNING , --
An airbag system that is not funct io ning
prope rly cannot provide supplemental p ro
tect ion in a fron tal crash.
- If the airbag indicator light ~ page 19
comes when the vehicle is be ing used,
have t he system inspected immedi ate ly
by yo ur authorized Aud i dea ler .
It is pos
sible that the airbag will inflate when it is not supposed to, or will not
inflate
when it should.
A WARNING
-If the front airbag inflates, a child without
a child restraint, or in a rearward-facing
chi ld safety seat, or in a forward -facing
chi ld restraint that has not been proper ly
i nstalled w ill be seriously injured and can
b e killed.
- Even though you r vehicle is equipped
with an Adva nced A irbag System, make
certain that all children, espe cial ly 12
ye ars and you nger, always ride on the
back seat properly rest rained for their
age and size .
- Always inst all forward o r rear-fa cing
child seats on the rear sea t - even with
an Advanced Airbag System.
- If you must ins tall a rearwa rd -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 have the airbag
sys tem inspected by you r Audi dealer .
- If, in exceptiona l circumstances, you
m ust install a forward-fac ing c hild re
straint on the front passenger seat, al
ways move the seat into its rearmos t po
sition in the se at's fore and aft adjust
men t range, as far away from the a irbag
as poss ible . The backrest mus t be ad just
ed to an upright pos ition . Make su re that
the
PASSENGER AIR BAG OFF light
comes on and stays on all the time when
ever the ignit ion is switched on.
A WARNING
-
- If the PASSENGER AIR BAG OFF light
does not go out when an adult is sitting
on the front passe nger seat after taking
the steps described above, make su re the
adu lt is prope rly seated a nd restra ined at
one o f the rea r seat ing pos itions.
~
Page 167 of 306

-Have the airbag system inspected by
your Audi dealer before transporting
anyone on the front passenger seat.
(D Tips
If the capacitive passenger detection sys
tem determines that the front passenger seat is empty, the frontal airbag on the
passenger side will be turned off, and the
PASSENGER AIR BAG OFF light will stay
on .
Repair, care and disposal of the airbags
Parts of the airbag system are installed at
many different places on your Audi. Installing,
removing, servicing or repairing a part in an
area of the vehicle can damage a part of an
airbag system and prevent that system from
working properly in a collision.
There are some important things you have to know to make sure that the effectiveness of
the system will not be impaired and that dis
carded components do not cause injury or pol
lute the environment.
A WARNING
Improper care, servicing and repair proce
dures can increase the risk of personal in
jury and death by preventing an airbag from deploying when needed or deploying
an airbag unexpectedly:
- Never cover, obstruct, or change the
steering wheel horn pad or airbag cover
or the instrument panel or modify them
in any way .
- Never attach any objects such as cup
holders or telephone mountings to the
surfaces covering the airbag units.
- For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one
moistened with plain water. Solvents or
cleaners could damage the airbag cover
or change the stiffness or strength of the
material so that the airbag cannot de
ploy and protect properly.
Airbag system 165
- Never repair, adjust, or change any parts
of the airbag system.
- All work on the steering wheel, instru
ment panel, front seats or electrical sys
tem (including the installation of audio
equipment, cellular telephones and CB radios, etc .) must be performed by a
qualified technician who has the training
and special equipment necessary.
- For any work on the airbag system, we
strongly recommend that you see your
authorized Audi dealer or qualified work
shop.
- Never modify the front bumper or parts
of the vehicle body.
- Always make sure that the side airbag
can inflate without interference:
- Never install seat covers or replace
ment upholstery over the front seat
backs that have not been specifically
approved by Audi.
- Never use additional seat cushions that
cover the areas where the side airbags
inflate.
- Damage to the original seat covers or
to the seam in the area of the side air
bag module must always be repaired
immediately by an authorized Audi
dealer.
- The airbag system can deploy only once .
After an airbag has been deployed, it
must be replaced with new replacement
parts designed and approved especially
for your Audi model version. Replace ment of complete airbag systems or air
bag components must be performed by
qualified workshops only. Make sure that
any airbag service action is entered in
your Audi Warranty
& Maintenance book
let under
AIRBAG REPLACEMENT RE
CORD .
-For safety reasons in severe accidents,
the alternator and starter are separated
from the vehicle battery with a pyrotech
nic circuit interrupter.
- Work on the pyrotechnic circuit inter
rupter must only be performed by a
qualified technicians who have the ...
L..._ _____________ _j ...
•
•
Page 168 of 306

166 Airbag system
experience, informat ion and specia l
too ls necessary to perform the work
safely.
- If the vehicle or the c ircuit interrupter
is scrapped, all applicable safety pre
cautions must be followed.
@ For the sake of the environment
Undeployed a irbag modu les and preten
sioners might be classified as Perchlorate Material - special handling may apply, see
www.dtsc.ca.gov/haza rdo uswaste/per
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety bel ts w it h pretens ioners are
s crapped, a ll applicable laws and regula
tions mus t be observed. Your au thori zed
Aud i dea le r i s familiar with these requ ire
ments an d we recommend that you have
your dea ler perfo rm this se rv ice 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 Sys
tem pe rforms in a crash. For example, us ing
tire-r im combina tions not app roved by Aud i,
lowe ring the vehicle, ch anging the stiffness o f
the suspension, incl uding the springs, s uspen
sion struts, shock absorbers etc. can change
the forces that are measured by the a irbag
sensors and sent to the electronic control
un it. Some suspension changes can, for exam
p le, increase the force levels measured by the
sensors a nd make the airbag system deploy in
crashes in w hich it would not dep loy if the
changes had not been made . Other kinds of
ch an ges may reduce the force levels meas
u re d by the sensors and prevent the airbag
from deploying when it sho uld .
The senso rs in the safety belt buckle fo r th e
d river a nd front p asse nger sea t tell the elec
tronic control module if the safety belt is
l atched or not .
If the safety belt is being used,
the front airbag will dep loy at a slightly high
er rate of vehicle deceleration than if the safe
ty belt is not being used. Therefore, in a par- t
icu lar collisio n, it is possible that an airbag
will not dep loy at a seat ing position where the
safety belt is be ing used b ut w ill inflate at the
pos ition where the safety belt is not be ing
used. It is important that nothing interfere
with t he safety be lt buckles so that the sen
sors can send the correct info rmation about
safety belt use to the electronic control un it .
_&. WARNING
Changi ng the vehicle's suspension includ
i ng use of unapp roved tire-rim combin a
tions can change Advanced Airbag per
formance an d increase the risk of serious
pe rsonal injury in a crash .
- Never install s uspension components
that do not have the same pe rformance
characteristics as the components o rigi
na lly installed on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
Knee airbags
Description of knee airbags
App lies to vehicles : wi th knee airbags
The knee airbag system can provide supple
mental protection to properly restrained
front seat occupants .
Fig. 1 65 Driver 's knee a irbag
T he dr iver knee airbag is in the ins trument
pane l underneath the steering wheel
~ fig. 165, the airbag for the passenger is at
about the same height in the instrument pan-
el underneat h the glove compartment. .,.