
132 Airbag system
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-r im combinations not approved by Aud i,
lowering the vehicle, changing the stiffness of
the suspension, including the sp rings, suspen
sion struts, shock absorbe rs etc. can change
the forces that are measured by the a irbag
sensors a nd sent to the electron ic control
un it. Some suspension changes ca n, for exam
p le, increase the force levels measured by the
sensors and make the airbag system deploy in
crashes in which it would not dep loy 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 .
The sensors in the safety belt buckle for the driver and front passenger seat tell the elec
tronic con trol module if the safety bel t is
latched or not .
If the safety belt is being used,
the front a irbag will deploy at a slightly high
e r rate of vehicle deceleration than if the safe
ty belt i s not being used. Therefo re, i n a par
ticular co llision, it is poss ible that an a irbag
will not deploy at a seati ng position where the
safety be lt is being used but will inflate at the
position where the safety belt is not being
used. It is important that nothing interfere
with the safety belt buckles so that the sen
sors can send the correct information about
safety belt use to the electron ic control unit .
A WARNING
Changing the vehicle 's s uspension includ
ing use of unapproved tire-rim combina
t ions can change Advan ced Airbag per
formance and increase the risk of ser io us
personal in jury in a crash.
- Never install suspens io n components
that do not have the same performance
characteristics as the components origi
nally installed on your vehicle .
- Never use tire -rim combinat ions that
have not been approved by Audi.
A WARNING
-Items stored between the safety be lt
buckle and the center console can cause
the sensors in the buckle to send the
wrong information to the e lectronic con
trol module and prevent the Advanced Air
bag System from wo rking properly.
- Always ma ke sure that nothing can inter
fere wi th the safety belt buckles a nd that
they are not obstruc ted .
@ For the sake of the env ironment
Undeployed airbag modules and preten
s ione rs might be classified as Perchlorate
Ma teria l - specia l hand ling may apply, see
www .d tsc.ca.gov/hazardouswaste/per
ch lorate. W hen the vehicle or parts of t he
restraint system including airbag modu les
and safety belts with pretensioners are
scrapped, all applicab le laws and regu la
tions must be observed. Your authorized
Audi dealer is familia r with these require
ments and we recommend that you have
your dealer perform this service fo r you.
Knee airbags
Description of knee airbags
The airbag system can provide supplemental
protection to properly restrained front seat occupants .
Fig. 1 26 D river 's ai rb ag
The airbag for the driver is Located in the in
strument panel underneath the steering
whee l
c::> fig. 126, the airbag for the passenger
is at about the same height in the inst rument
panel underneath the g love compartment . ..,_

The knee airbag offers additional protect ion
to the driver's and passenger's knees and up
per and lower thigh areas as a supplement to
the safety belts.
I f the front airbags deploy , the knee airbags
also deploy in fronta l collisions above acer
tain severity ¢
page 126, More important
things to know about front airbags.
Besides their normal safety function, safety
be lts work to help keep the driver or front
passenger in posit ion in case of a frontal colli
sion so that the airbags can provide protec
tion .
The airbag system is not a s ubstitute for your
safety be lt . Rather, it is part of the overall oc
cupant restraint system in your veh icle. Al
ways remember that the airbag system can
only help to protect you if you are wearing
your safety belt and wear ing it properly. Th is
i s why you shou ld always wear you r safety
be lt, not jus t because the law requires you to
do so¢
page 110, Why safety belts?.
The safety belt buck le for the dr iver and front
seat passenge r have switches that tell the a ir
bag control mod ule if the safety belt is being
used or not. If the safety be lt is being used,
the knee airbag will deploy at a slightly higher
rate o f deceleration than if the belt is not be
ing used . Therefore, in a partic ular collision, it
is poss ible that an airbag will not deploy at a
seating position where the safety belt is being
used but will inflate at the position where the
safety belt is not be ing used.
Remember too, airbags will deploy only once
and only in certain kinds of accidents -your
safety belts are always there to offer protec
tion in those acc idents in which airbags are
n ot supposed to deploy or when they have al
ready deployed, fo r example when your veh i
cle strikes o r is struck by anothe r after the
fi rst coll is ion.
This is just one of the reaso ns why an a irbag is
not a substitute for the safety belt. The airbag
system wo rks most effective ly w hen used with
the safe ty belts. The refore, always we ar your
safety be lts correctly.
A irbag system 133
It is important to remembe r that wh ile the
supplementa l airbag system is designed to re
duce the like lihood of serious injur ies, othe r
injur ies, for example, swelling, bru is ing, and
minor abrasions can also be assoc iated with
airbags .
The knee airbag sy stem basic ally consi sts
of:
- The e lectronic control module
- Two inflatable airbags (a irbag and gas gen-
erator), one for the driver and one for the
front passenger
- The a irbag indicator light in the instrument
panel
The knee airbag sy stem will not deploy:
- when the ignit ion is tu rned off
- in front-end collisions when the de celeration
meas ured by the con tro l unit is too low
- in side collisions
- in rear-end co llisions
- in rollovers
- in the event of a system malfunction (warn-
ing/ind icator light illuminated) ¢
page 17.
_& WARNING
-Safety belts and the airbag system can
only provide protection when occupants
are in the proper seating position
¢page 126.
- If the a irbag ind icator light comes o n
when the vehicle is being used, h ave the
sys tem inspected immedi ately by your
author ized Audi dealer . The airbag may
not work properly when the ve hicle ac
celeration in a side collis ion is high
enough to deploy the airbag. See also
¢page 17.
-
•
•

134 Airbag system
How knee airbags work
The risk of injury to the leg area is reduced by
fully deployed knee airbags .
Fig. 127 Inflated airbags protecting in a frontal coll i
sion
The knee airbag system has been designed so
that the airbags for the driver and front pas
senger are deployed in certain but not all
frontal collisions .
If the front airbags deploy, the knee airbags
also deploy in frontal collisions above acer
tain severity .
When the system is deployed, the airbags
start to 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 126, fig. 124.
Although they are not a soft pillow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the lower
extremities.
All this takes place instantaneously, so fast
that many people don't even realize that the
airbags have deployed. The airbags also in
flate with a great deal of force and it is impor
tant 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. Important safety instructions on the
knee airbag system
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.
A WARNING ~
An inflating knee airbag can cause serious injury. Wearing safety belts incorrectly and
improper seating positions increase the
risk of serious personal injury and death
whenever a vehicle is being used.
- The airbag system cannot protect you
properly if you are seated too close to
any of the airbag locations. When adjust
ing their seat positions, it is important
that both the driver and the front pas
senger keep their upper bodies and
knees at the following minimum safe
distances:
- 10 inches (25 cm) between the chest
and the steering wheel/instrument
panel.
- 4 inches (10 cm) between the knees
and the lower part of the instrument
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 yourself and the airbag can in
crease the risk of injury in an accident by
interfering with the way the airbag de
ploys or by being pushed into you as the
airbag deploys.
- No persons (children) or animals
should ride in the footwell in front of

the passenger seat. If the airbag de
ploys, this can resu lt in serious or fatal
injuries.
- No objects of any kind should be car
ried in the footwell area in front of the
driver's or passenger's seat. Bulky ob
jects (shopping bags, for example) can hamper or prevent proper deployment
of the airbag. Small objects can be
thrown through the vehicle if the ai r
bag deploys and injure you or your pas
sengers.
- Make sure there are no cracks, deep
scratches or other damage in the area of
the instrument pane l where the knee air
bags are located.
- If children are incorrect ly seated, their
risk of injury increases in the case of an
accident ¢
page 138, Child Safety.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained front seat occupants.
F ig . 128 Side a irbag location in t he d river 's seat
The s ide airbags are located in the sides of the
front seat backrests
r::} fig . 128 facing the
doors. They are identified by the word "AIR
BAG".
The side airbag system basically consists of:
-the electronic control module and external
side impact sensors
- the two side airbags located in the sides of
the front backrests
Airbag system 135
- the airbag warning light in the instrument
cluster.
The airbag system is mon itored electronically
to make certain that it is functioning p roperly
at all times. Each time you turn on the igni
tion, the airbag system indicator light will
come on for a few seconds (self diagnostics) .
The side airbag system supplements the safe
ty belts and can help to reduce the risk of in
jury to the driver's and front passenger 's up
per torso and head injuries on the side of the
vehicle that is struck in a side collision. The
airbag deploys only in side impacts and only
when the vehicle acceleration 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
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 considerably between one collision and another. Important
factors include, for example, the nature (hard
or soft) of the impacting object, the angle of
impact, vehicle speed, etc.
¢page 137, Im
portant safety instructions on the side airbag
system .
Aside from their normal safety function, safe
ty belts work to help keep the driver or front
passenger in position in the event of a side
collision so that the side airbags can provide
protection.
The airbag system is
not a substitute for your
safety belt . Rather, it is part of the overall oc
cupan t restra int system in your vehicle. Al
ways remember that the side 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 should always wear
your safety be lts, not just because the law re
quires you to do so¢
page 110, Why safety
belts? .
It is important to remember that while the
supplemental side airbag system is designed
to reduce the likelihood of serious injuries,
IIJ>,

136 Airbag system
o ther injuries, for example, swelling, bruising,
and minor abrasions can also be associated
with deployed side airbags. Remember too,
side airbags wi ll deploy only once and on ly in
certain kinds of accidents - your safety belts
are a lways there to offer protect ion .
Vehicle damage, repa ir costs or even the lack
of vehicle damage are not necessarily an indi
cation of over-sensitive or failed airbag activa
tion . In some co llisions, both front and side
a irbags may inflate. Remember too, that air
bags will dep loy only once and only in certain
kinds of collisions -your safety be lts a re al
ways there to offer protec tion in those acci
dents in wh ic h ai rbags are not supposed to
deploy or when they have already deployed .
The side airbag system will not deploy:
- when the ignition is turned off
- in s ide collisions when the acceleration
measured by the sensor is too low
- in front-end collisions
- in rear-end collisions
- in rollovers.
I n some types of acc idents the front a irbags
and side a irbags may be triggered together.
A WARNING
- Safety belts and t he ai rbag system will
only provide protection when occ upants
are in the proper seating posit ion
¢page 137.
-If the airbag indicator light comes on
when the veh icle is being used, have the
system inspected immediately by your
authorized Audi dealer. The a irbag may
not work p roperly when the vehicl e ac
celeration in a side co llision is h igh
enough to activa te the airbag.
-
How supplemental side airbags work
Side airbags deploy instantly and can help re
duce the risk of upper torso injuries for occu
pants who are properly restrained.
F ig . 1 29 Inflated s ide a irbags on left s ide of veh icle
When the system is triggered, the airbag is
filled with propellant gas and b reaks through
a seam in the seat surface area ma rked "AIR
BAG".
It expands between the side trim panel
and the passenger. In order to help provide
t hi s additional protection, the side airbag
must inflate w ithin a fraction of a second at
very h igh speed and with great force . The sup
pleme nta l side airbag could injure you if your
seat ing pos it ion is not proper or upright or if
items are loca ted in the area where the s up
pleme nta l side airbag expands. This applies
especially to children ¢
page 138, Child Safe
ty .
Supplemental side airbags inflate between
the occ upant and the door panel on the side
of the vehicle that is struck in certain side col
lis ion ¢
fig. 129.
Although they are not a soft pi llow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the upper
part of the body.
A fine dust may deve lop when the airbag de
ploys. This is normal and does not mean there
is a fire in the vehicle.

Important safety instructions on the
side airbag system
Airbags are only supplemental restraints. Al
ways properly wear safety belts and ride in a
proper seating position.
There is a lot that you and your passengers
must know and act accordingly to help the
safety belts and airbags do their job to pro
vide supplemental protection .
A WARNING
An inflating side airbag can cause serious
or fatal injury. Improperly wearing safety
belts and improper seating positions in
crease the risk of serious personal injury
and death whenever a vehicle is being
used .
- In order to reduce the risk of injury when
the supplemental side airbag inflates:
-Always sit in an upright position and
never lean against the area where the
supplemental side airbag is located.
- Never let a child or anyone else rest
their head against the side trim panel
in the area where the supplemental
side airbag inflates.
- Always make sure that safety belts are worn correctly,
- Do not let anyone sitting in the front
seat put their hand or any other parts
of their body out of the window.
- 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
deploy.
- 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.
Airbag system 137
- Objects between you and the airbag can
increase the risk of injury in an accident
by interfering with the way the airbag
deploys or by being pushed into you as
the airbag inflates.
- Never place or attach accessories or
other objects (such as cup holders, tel ephone brackets, or even large, bulky
objects) on the doors, over or near the
area marked "AIRBAG" on the seat backrests .
- Such objects and accessories can be come dangerous projectiles and cause injury when the supplemental side air
bag deploys.
- Never carry any objects or pets in the
deployment space between them and
the airbags or allow children or other passengers to travel in this position .
- Always prevent the side airbags from be
ing damaged by heavy objects knocking
against or hitting the sides of the seat backs.
- The airbag system can only be triggered
once . If the airbag has been triggered,
the system must be replaced by an au
thorized Audi dealer.
- Damage (cracks, deep scratches etc.) to
the original seat covers or to the seam in
the area of the side airbag module must
always be repaired immediately by an au
thorized Audi dealer.
- If children are seated improperly , their
risk of injury increases in the case of an
accident
c:> page 138, Child Safety.
- Never attempt to modify any compo
nents of the airbag system in any way .
•
•

138 Child Safety
Child Safety
Important things to know
Introduction
The physical princip les of what happens when
your vehicle is in a crash app ly also to children
¢ page 112. But unlike adu lts and teenagers,
their muscles and bones are not fully devel
oped. In many respects children are at greater risk of serious injury in crashes than adults.
Because children 's bod ies are not fully deve l
oped, they require restraint systems especial ly designed for their s ize, weight, and body
structure . Many countries and all states of the
United States and provinces of Canada have
l aws requ iring the use of approved ch ild re
straint systems fo r infants and small child ren.
In a frontal crash at a speed of 20-35 mph
(30-56 km/h) the forces acting on a 13-pound
(6 kg) infant w ill be more than 20 times the
weight of the child. Thi s means the weight of
the child would s uddenly be more than
260 pounds (120 kg) . Under these conditions,
only an appropriate chi ld restraint properly
used can reduce the risk of serious injury.
Child restraints, like adult safety belts, must
be used properly to be effective. Used improp
erly, they can increase the risk of ser ious in
jury in an accident.
Consult the child safety seat manufacturer's instructions in order to be sure the seat is
right for your ch ild's s ize
c> page 141 , Impor
tant safety instructions for using child safety
seats .
Please be sure to read and heed all of
the impo rtant informat io n and WARNINGS
about child safety, Advanced A irbags, and the
installation of child restraints in this chapter.
There is a lot you need to know about the Ad
vanced A irbags in your vehicle and how they
wo rk when infants and children in chi ld re
straints are on the front passenger seat. Be
cause o f the large amount of important info r
mation, we cannot repeat it all here. We urge
you to read the detailed information in this owner's manual about airbags and the Ad
vanced Airbag System in your vehicle and the
very important information about transport
ing children on the front passenger seat.
Please be sure to heed the WARNINGS - they
are extremely important for your safety and
the safety of your passengers, especially in
fants and small children.
.&, WARNING
-
A ll vehicle occupants and especially chi l
dren must be restrained properly whenev
er riding in a vehicle. An unrestrained or
improperly restrained child could be in
jur ed by str ik ing the interior or by being
ejected from the vehicle dur ing a sudden
maneuver or impact. An unrestra ined or
i mproperly restra ined child is also at great
er risk of injury or death through contact
with an inflat ing airbag.
.&, WARNING
--Children on the front seat of any car even
with Advanced Airbags can be seriously in
jured or even killed when an airbag in
flates. A child in a rearward-fac ing child
safety seat installed on the front passen
ger seat will be seriously injured and can
be killed if the front airbag inflates .
- The inflating airbag will hit the child
safety seat or infant carrier with great
force and will smash the child safety seat
and child aga inst the backrest, door or
roof.
- Never install a rearward facing child safety seat on the front passenger seat
unless the
PASSENGER AIR BAG OFF
light comes on and stays on . If the PAS
SENGER AIR BAG OFF
l ight does not
come on and stay on, the inflating airbag
will hit the child safety seat or infant car
rier w ith great force and will smash the
child safety seat and child against the backrest, door or roof. Have the airbag
system inspected immediately by your
author ized Audi dealer.

A WARNING ,~
If, in exceptional circumstances, you must
install 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 manufacturer for use on a front seat
with a passenger front and side airbag.
-Always follow the manufacturer's in
structions 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 airbag 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.
Advanced front airbag system and children
Your vehicle is equipped with an "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" 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.
Child Safety 139
Even though your vehicle is equipped with an
Advanced Airbag system, a child should al
ways ride in the seat properly restrained for
its age and si ze. The airbag on the passenger
side makes the front seat a potentially dan
gerous 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 dan
gerous 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 detects the presence of an infant or child in a
child restraint on the front passenger seat us
ing the weight -sensing mat in the seat cush
ion 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 design of the child restraint
and its "footprint", the size and shape of the
bottom of the child restraint as it sits on the
seat. The weight of a child restraint and its
"footprint" vary for different kinds of child re
straints 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 in
fants and typical 1 year-old child have been
stored in the control unit of the Advanced Air
bag System. When a child restraint is being
used on the front passenger seat with a typi
cal 1 year-old child, the Advanced Airbag Sys
tem compares the weight measured by the
weight sensing mat with the information stor
ed in the electronic control unit.
The electronic control unit also registers the
tension on the front passenger safety belt. ..,. •
•