148 Airbag system
-The Advanced Airbag System can deploy
in accordance with the .,low risk" option
for 3- and 6-year-old children under the U.S . Federal Standard if a child with elec
trical capacitance greater than the com bined capacitance of a typical one-year
old infant restrained in one of the for
ward facing or rearward-facing child
seats with which your vehicle was certi
fied is on the front passenger seat and
the other conditions for airbag deploy ment are met.
- Accident statistics have shown that chil
dren are generally safer in the rear seat
area than in the front seating position.
- For their own safety, all children, espe
cially 12 years and younger, should al
ways ride in the back properly restrained
for their age and size.
Advanced front airbag system
Your vehicle is equipped with a front Advanced
Airbag System in compliance with United
States Federal Motor Vehicle Safety Standard
208 as applicable at the time your vehicle was manufactured.
The front Advanced Airbag System supple
ments the safety belts to provide additional
protection for the driver's and front passeng
er's heads and upper bodies in frontal crashes .
The airbags inflate only in frontal impacts
when the vehicle deceleration is high enough.
The front Advanced Airbag System for the
front seat occupants is not a substitute for
your safety belts. Rather, it is part of the over all occupant restraint system in your vehicle.
Always remember that the airbag system can
only help to protect you, if you are sitting up
right, wearing your safety belt and wearing it
properly . This is why you and your passengers
must always be properly restrained, not just
because the law requires you to be.
The Advanced Airbag System in your vehicle has been certified to meet the "low risk" re
quirements for 3 and 6 year-old children on
the passenger side and very small adults on the driver side. The low risk deployment crite
ria are intended to help reduce the risk of in
jury through interaction with the front 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 Standard, to turn off the front
airbag for infants 12 months old and younger
who are restrained on the front passenger
seat in child restraints that are listed in the
Standard
c::> page 170, Child restraints and
Advanced front airbag system.
"Suppression" requires the front airbag on the
passenger side to be turned off if:
- a child up to about one year of age is re
strained on the front passenger seat in one
of the rear-facing or forward-facing infant
restraints listed in 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 US Safety Standard
i=>page 170,
-When a person is detected on the front pas
senger seat that has an electrical capaci
tance that is more than the total electrical
capacitance of a child that is about 1 year
old restrained in one of the rear-facing or
forward -facing infant restraints (listed in
Federal Motor Vehicle Safety Standard 208
with which the Advanced Airbag System in
your vehicle was certified) , the front airbag
on the passenger side may or may not de
ploy.
The
PASSENGER AIR BAG OFF light comes on
when the electronic control unit detects a to
tal electrical capacitance on the front passen ger seat that requires the front airbag to be
turned off. If the
PASSENGER AIR BAG OFF
light does not come on, the front airbag on
the passenger side has not been turned off by
the control unit and can deploy if the control unit senses an impact that meets the condi -
tions stored in its memory. ..,_
150 Airbag sys te m
backrest must be adjusted to an uprigh t
posit ion.
- Always make sure that there is nothing
on the front passenger seat that will
cause the capacitive passenger detection
system in the seat to s ignal to the A irbag
System that the seat is occupied by a
person when it is not, or to signal that it
is occupied by someone who is heavier
than the pe rson actually s itting on t he
seat. The presence of additiona l objects
cou ld cause the passenger front airbag
to be t urned on w hen it sho uld be off, or
cou ld cause the airbag to work in a way
that is different from the way it wou ld
have worked without the object on the
seat.
- Make sure that the
PASSENGER AIR BA G
OFF
light comes on and stays on all the
t ime w henever the ignition is switched
on.
Advanced Airbag System components
The front passenger seat in you r veh icle has a
l ot of very important pa rts of the Advanced
A irbag System in it . These parts include the
capacitive passenge r de tect ion sys tem, wir
ing, brac kets, and more . The cont ro l uni t
monitors the system on the front passenger
seat when the ignition is switc hed on and
turns the airbag indicato r light on when a
malfunction in the one of the system compo
nents is detected
c::;, page 155 . Because the
fro nt passenge r seat contains important pa rts
of the Advanced Airbag System , you must
take ca re to p revent it from being damaged.
Da mage to the seat may preven t the Ad
vanced A irb ag System for the fron t passenger
seat from doing i ts job in a c rash .
The front Advanced Airbag System
consists of the following:
-Crash sensors in the front o f the veh icle tha t
measure veh icle acceleration/dece le ration
to provide information to the Advanced Air bag System about the severity of the crash. -
An elect ronic contro l unit, with integrated
crash sensors for front and sid e impacts .
T he control un it "decides" whether to fire
the front a irbags based on the inform at ion
received from the crash sensors. The control
unit also "decides" whether the safety belt prete nsioners shou ld be act ivated .
- An Advanced A irbag w ith gas generator and
contro l valve for the driver inside the steer
ing wheel hub .
- An Advanced A irbag w ith gas generator and
contro l valve inside the inst rument panel for
the front passenger .
- A capacit ive passenger detection system u n
de rneath the front passenger seat cover .
This system measures the elec trical capac i
t ance of the perso n in t he seat. The informa
t ion regis tered is se nt cont inuo usly to the
electronic con trol un it to regu late deploy
ment of the front Advanced Airbag on the
passenger side.
- An airbag monitoring system and indicator
light in the instr ument cluster
c::;, page 154.
- A senso r in each front seat regis ters the dis
tance between the respective seat and the
steering whee l or instrument panel. The in
formation registered is sent cont inuo usly to
the electron ic contro l uni t to regulate de
ployment of the front Adv a need A irbags .
- The
PASSENGER AIR BAG OFF light comes
on and stays on in the center of the instr u
ment panel
c::;, page 155, fig . 162 and tells
you when the front Advanced Airbag on the
passenger side has been t urned off.
- A sensor in the safety belt latch for the driv
er and fo r the front seat passenger that
senses w hether t hat safety belt is latched or
no t and transmi ts this information to t he
elec tronic con trol un it.
A WARNING
D amage to the fron t passenger seat can
prevent the front airbag from working
p roperly.
- Imp roper repai r or disassembly of the
front passenge r and dr iver seat will pre
vent the Advanced Airbag System from
functioning properly .
-
152 Airbag system
things on the sea t cushion can have the
same effect. If the front passenger 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 front Advanced Airbag System and the
side airbags supplement the protection of
fered by the front three -point safety be lts
with pretensioners and load limiters and the
adj ustab le head restraints* to help reduce the
risk of inju ry in a wide range of accident and
crash situa tions. Be sure to re ad the impor
tan t information abou t safe ty and heed the
WARNINGS in this chapter .
Dep loyment of the Advanced Airbag System
and the activat ion of the safety bel t preten
sioners depend on the decelera tion measured
by the crash sensors and registered by the
e lectronic control un it . The amount of i nfla
tion of the front airbags can also be adapted to the front sea t position , depend ing on the
d istance between t he respective front seat
and the steering wheel o r instrument pa nel as
registered by sensors in the seats. Crash se
ver ity depends on speed and dec elerat ion as
well as the mass and st iffness of the vehicle
or objec t invo lved in the crash .
On the passenge r side, regard less of safety
be lt use, the front passenger fronta l a irbag
will be turned off if the e lectrical capacitance
measured by the capac itive passenger de tec
tion system on the front passenger seat is less
than the amount programmed in the electron
i c co ntrol unit . The front passenger frontal air
bag will a lso be turned off if the capa cita nce
measured by the system for the front passen
ge r seat eq ua ls tha t of an infant of abo ut one
yea r of age in one o f the child sea ts 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 the
front Advanced A irbag System on the passen
ge r side has been turned off~
page 155 .
A WARNING
-To reduce the risk of injury w hen an a irbag
in flates, always wear safety be lts p roperly.
- If you are unrestra ined, leaning fo rward,
sitt ing s ideways or out of pos ition in any
way, your risk of injury is much h igher .
- You will a lso receive se rious injuries and
could even be killed if you a re up aga inst
the airbag o r too close to it when it in
flates - even w ith an Advanced A irb ag
r:::> page 1 4 2 .
More important things to know about
front airbags
Fig . 1 61 In flated fro nt a irbags
Safety belts a re important to he lp keep front
seat o ccupants in the proper seated position
so that a irbags can unfold properly and pro
v ide s upplementa l pro te cti on in a fron tal col
li sion .
T he front airbags are des igned to provide ad
di tional p rotection fo r the ches t and face of
the driver a nd the front seat passenger w hen:
- safety belts are worn properly,
- the seats have bee n positioned so that the
occupant is properly seated as far as poss i
b le from the airbag ,
- and for ad justab le head restra ints: the head
restrai nts have been properly ad justed.
Beca use airbags inflate in the blink 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 projecti les, and be p ushed in to you if
t h e a irbag inflates .
When an airbag deploy s, fine dust is re leased.
This is norma l and is not caused by a f ire in ..,.
154 Airbag sys te m
- Never place or attach accessories or o th
er objects (such as cup holders, tele
phone brackets, large, heavy or bulky ob
jects) on the doors, over or near the area marked "AIRBAG" on the stee ring 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 whe n it in fa ct is not, o r that
the person on the se at is heavie r than he
or she actually is. The change in electric
capacitance because of such objects can
cause the passenger front airbag to be
t u rned 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
wor ked w ithout ob jects 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 occupied by a
person when it is not, or to signa l th at it
is occupied by someone who is heavier
than the pe rson actually s itting on the
seat . The prese nce of an object co uld
cause the passenger front a irbag to be
t ur ned on when it sho uld be
off, or co uld
cause the airbag to work in a way t hat is
different from the way it wou ld have
worked w ithout the object on the seat.
A WARNING
The fine dust created when airbags deploy
ca n cause breathing p rob lems for people
with a history of asthma or ot her breath
i ng cond itions .
- To reduce the risk of breath ing problems ,
those wi th asthma o r othe r respiratory
conditions s hou ld get fresh air right
away by getting o ut of th e veh icle or
open ing windows or do ors .
- If you are i n a collision in which airbags
de ploy, was h your h ands and face wi th
mild soap and wate r before eating.
- Be ca reful not to get the dust into your
eyes, o r into any c uts or sc ratches.
- If the res id ue should get into your eyes,
fl ush them w ith wate r.
Monitoring the
Advanced Airbag System
t~i Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advan ced Airbag Sy stem: the airbag
moni toring indicator light and the
PASSEN
GER AIR BAG O FF
light.
The Adva nced A irbag Sys tem ( incl uding the
ele ct ron ic cont ro l u nit , sensor circu its and sys
tem wir ing) is monitored con tinuously to
make sure that it is functioning properly
whenever the ignition is on. Eac h time you
switch on the ignition, the airbag monitor ing
indicator light
fl w ill come on fo r a few sec
onds (self diagnostics) .
The sy stem mu st 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 malfunction is detected,
the i ndicator lig ht w ill first sta rt flashing to
catch the drive r's attention and then stay on .,..
158 Airb ag sys te m
- Have the airbag system inspected by
your Audi dealer before transporting
anyone on the front passenger seat.
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
P ASS ENGER AIR BA G OFF light w ill stay
on .
Repair, care and disposal of the airbags
Parts of the a irbag system are installed at
many different pla ces 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 co llision.
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 po l
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 deploy ing when needed or deploying
an airbag unexpectedly:
- Never cover, obstruct, or change the
steering wheel ho rn pad or airbag cover
or the instrument pane l or modify them
in any way .
- Never attach any objects such as cup
holders or telephone mountings to the
surfaces covering the airbag uni ts.
- For cleaning the horn pad or instrument
pane l, use only a soft, dry cloth or one
moistened w ith plain water. Solvents or
cleaners co uld damage the airbag cover
or change the stiffness or strength of the
material so that the airbag cannot de
ploy and protect properly. -
Never repair, adjust, or change any parts
of the a irbag system.
- All work on the steering wheel, instru
ment panel, front seats or e lectr ica l sys
tem (including the installation of audio
equ ipment, cellu lar telephones and CB
radios, etc.) must be performed by a
qualified technic ian who has the training
and specia l equipment necessary.
- For any wo rk on the airbag system, we
strongly recommend that yo u see your
author ized Audi dealer or qualified work
shop.
- Never modify the front bumper or parts
of the vehicle body.
- Always make sure that the s ide airbag
can inf late without inte rfe rence:
- Never install seat covers or rep lace
ment upholstery over the front seat
backs that have not been specifically
approved by Audi.
- Never use additional seat c ushions that
cover the areas where the side a irbags
inflate.
- Damage to the orig inal seat covers or
to the seam in the area of the side a ir
bag module must a lways be repaired
immediately by an author ized Audi
dealer .
- The airbag system can deploy on ly once .
After an a irbag has been deployed, it
must be replaced w ith new replacement
pa rts des igned and app roved es pecially
for your Aud i mo del ve rsion. Replace
ment of comple te airbag systems or air
bag components must be performed by
qualified wor kshops 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 a re sepa rated
from the veh icle battery with a pyrotech
n ic circuit inte rrupte r.
- Work on the pyrotechnic circuit inter
rupter must only be performed by a
qualified technicians who have the
llll-
experience, informat ion a nd specia l
too ls necessary to perform the work
safely.
- If the veh icle or the circuit interrupter
is scrapped, all applicable safety pre
cautions must be followed.
@ For the sake of the environment
Undep loyed airbag modu les and preten
sioners might be classified as Perchlorate Material - special handling may apply, see
www.dtsc.ca .gov/hazardouswaste/per
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts w ith pretens ioners are
scrapped, all applicable laws and regula
tions must be observed. Your author ized
Aud i dea ler is familiar with these requi re
ments an d we recommend that yo u have
your dea ler perform this se rvice 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 combinations not app rove d by Aud i,
l owering the vehicle, changing the stiffness o f
the suspension, incl uding the springs, s uspen
sion struts, shock absorbers etc. can change
the forces that a re measured by the airbag
sensors and sent to the elect ronic control
u ni t. Some suspension changes can, for exam
p le, increase the force levels measured by the
se nsors and make the airbag system deploy in
crashes in wh ich it would not dep loy if the
changes had not been made . Ot her k inds of
change s may reduce the force levels meas
u red by the sensors and prevent the a irbag
from deploying when it shou ld .
The sensors in the safety belt buckle fo r the
d river and front passenger sea t tell the elec
tronic control module if the safety belt is
l atched or not . If the safety belt is be ing 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 pa r-
A irba g sy stem 159
ticular coll is io n, it is possible t hat an airbag
w ill not deploy at a seating position where the
safety belt is be ing used b ut w ill inflate at the
position where the safety belt is not be ing
used . It is important that nothing interfere
with the safety be lt buckles so that the sen
sors can send the cor rect info rmation about
safe ty be lt use to the electronic control un it .
A WARNING .
Changing the vehicle's suspension includ
i ng use of unapp roved tire-r im combin a
tions can cha nge Advanced Airbag per
formance and increase the risk of se rious
personal injury in a crash.
- Never install s uspension componen ts
that do not have the same performance characteristics as the components origi
na lly 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: wit h knee airbags
The knee airbag system can provide supple
mental protection to properly restrained
front seat occupants .
Fig. 1 63 Driver 's k nee airbag
T he driver knee airbag is in the ins trumen t
pane l underneath the steering wheel
r:::> fig. 163, the airbag for t he passenger is at
about the same height in the instrument pan-
el underneath the glove compartment. ..,.
How knee airbags work
Applies to vehicles: with knee airb ags
The risk of injury to the leg area can be re
duced by fully inflated knee airbags.
Fig. 164 Inflated airbags protecting in a frontal coll i
sio n
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 deploy, the knee airbags
also deploy in frontal collisions when the de ployment threshold stored in the control unit
is met .
When the system deploys, the airbags fill
with a propellant gas, and inflate between the lower part of the instrument panel and the
driver and the lower part of the instrument panel and the front passenger¢
page 152,
fig. 161.
Although they are not a soft pillow, they can
"cush ion" the impact and in this way they can
help to reduce the risk of injury to the lower
extremities.
All of this takes place in the blink of an eye, so
fast that many people don't even realize that
the airbags have deployed . The airbags also
inflate with a great deal of force and it is im
portant for occupant safety that nothing
should be in their way when they deploy.
Fully inflated airbags in combination with
properly worn safety belts slow down and lim
it the occupant's forward movement and help
to reduce the risk of injury.
Airbag system 161
Important safety instructions on the
knee airbag system
Applies to vehicles: wit h knee airbags
Airbags are only supplemental restraints . Al
ways wear safety belts correctly and ride in a
proper seating position.
There is a lot that you and your passengers
must know and do to help the safety belts and
airbags to provide supplemental protection.
_&. WARNING .. -
An inflating knee airbag can cause serious injury. Wearing safety belts incorrectly and
imprope r seating positions increase the
risk of serious personal injury and death
whenever a vehicle is being used.
- The knee airbag system cannot protect
you properly if you a re seated too close
to any of the airbag locations. When ad
justing their seat positions, it is impor
tant that both the driver and the front passenger keep their upper bodies and
knees at the following minimum safe
distances:
- at least 10 inches (25 cm) between the
chest and the steering wheel/instru
ment panel.
- at least 4 inches (10 cm) between the
knees and the lower part of the instru
ment panel.
- The risk of personal injury increases if
you lean forward or to the side, or if the seat is improperly positioned and you are
not wearing your safety belt . The risk in
creases even more should the airbag de
ploy.
- Always make sure that the knee airbag
can inflate without interference. Objects
between you and the airbag can increase
the risk of injury in an accident by inter
fering with the way the airbag deploys or
by being pushed into you as the airbag
deploys.
- Never let anybody, especially children
or animals ride in the footwell in front
1 70 Child Safety
-Always read and heed all WARNINGS
whenever using a child restraint in ave
hicle
q page 133, Safety belts,
q page 142, Airbag system and
q page 168, Important things to
know.
(D Tips
Always replace child restraints that were
installed in a vehicle during a crash. Dam
age 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 "Ad
vanced 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" re
quirements for 3- and 6-year old children on
the passenger side and small adults on the
driver side. The low risk deployment criteria
are intended to 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 "sup
pression" requirements of the Safety Stand
ard, to turn
off the front airbag for infants up
to 12 months who are restrained on the front
passenger seat in child restraints that are list
ed in the Standard .
Even though your vehicle is equipped with an
Advanced Airbag system, all children, espe
cially those 12 years and younger, should al
ways ride in the back seat properly restrained
for their age and size. The airbag on the pas
senger 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 for
ward -facing child safety seat. It can be a very dangerous place
for an infant or a larger child
in a rearward-facing seat.
The vehicle's Advanced Airbag System has a
capacitive passenger detection system in the
front passenger seat cushion that can detect
the presence of a baby or a child in a child re
straint system on this seat.
The capacitive passenger detection system
registers the changes that result in an electri
cal field when a child, a child restraint, and a
baby blanket are on the front passenger seat .
The change in the measured capacitance due
to the presence of a child, a child restraint,
and a baby blanket on the front passenger
seat is related to the child restraint system
resting on the seat. The measured capacitance
of a child restraint system varies depending
on the type of system and specific make and
model.
The electrical capacitance of the various
types, makes, and models of child restraints
specified by the U.S.National Highway Traffic
Safety Administration (NH TSA) in the relevant
safety standard are stored in the Advanced
Airbag System control unit together with the capacitances typical of infants and a 1-year
old child. When a child restraint is used on the
front passenger seat with a typical 1 year-old infant, the Advanced Airbag System compares
the capacitance measured by the capacitive passenger detection system with the data
stored in the electronic control unit. Child restraints and Advanced front
airbag system
Regardless of the child restraint that you use,
make sure that it has been certified to meet
United States Federal Motor Vehicle Safety
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 excep
tional circumstances you must use it on the
front passenger seat, carefully read all of the
information on child safety and Advanced Air-
bags and heed all of the applicable .,..