
172 Airbag system
dealer is familiar with these requirements
and we recommend that you have your
dealer perform this service for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced 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.
The sensors in the safety belt buckle for the
driver and front passenger seat tell the elec
tronic control module if the safety belt is
latched or not.
If the safety belt is being used,
the front airbag will deploy at a slightly high
er rate of vehicle deceleration than if the safe
ty belt is not being used. Therefore, in a par
ticular collision, it is possible 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 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 electronic control unit.
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.
A WARNING
= -
Items stored between the safety belt
buckle and the center console can cause
the sensors in the buckle to send the
wrong information to the electronic con
trol module and prevent the Advanced Air
bag System from working properly.
- Always make sure that nothing can inter
fere with the safety belt buckles and that
they are not obstructed.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 169 Side a irbag location in the driver's seat
The side airbags are located in the sides of the
front seat backrests¢
fig. 169 and the rear
backrest* facing the doors. They are identified
by the word "AIRBAG".
The side airbag system basically consists of:
-the electronic control module and external
side 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 monitored electronically
to make certain that it is functioning properly ..,.

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 s ide a irbag sys tem supp lements the safe
ty belts and can help to reduce the risk of in
jury to the driver's and front passenge r's up
per torso on the side of the vehicle that is
struck in a side co llision. The airbag deploys
only in s ide impacts and on ly when the veh icle
acceleration registered by the control u nit is
h igh enough . If this rate is below the refer
ence va lue programmed into the control 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
fine an ai rbag triggering range that will cover
every possible angle of impact, since the cir
cumstances wi ll vary considerably between
one co llision and another. Important factors
include, for examp le, the nat ure (hard or soft)
of the impacting object, the ang le of impact,
veh icle speed, etc. c::>
page 174, Important
safety instructions on the side airbag system.
Aside from the ir norma l safety function, safe
ty belts work to he lp keep the driver or front
passenger in posit ion in the event of a side
coll is ion so that the side a irbags can provide
p rotection.
The airbag system is
not a substitute for your
safety bel t. Rathe r, it is pa rt of the overall oc
cupant restraint system i n your veh icle . Al
ways remember that the side airbag sys tem
can only he lp to p rotec t you if yo u are wear ing
your safety belt and wear ing it properly. This
is another reason w hy you sho uld a lways wear
your safety belts, not just beca use the law re
q uir es you to do soc::>
page 149, General
notes.
It is important to remember that while the
supp lemental side a irbag system is designed
to reduce the like lihood of serious injur ies,
other in juries, for example, swell ing, bruising,
and minor abras ions can also be associated
w ith deployed s ide a irbags. Remember too,
side a irbags w ill deploy on ly once and o nly in
certain kinds of accidents - you r safety belts
are a lways there to offer prote ction.
A irbag system 173
Vehicle damage, repair costs o r even t he lack
of ve hicle damage are not necessarily a n indi
cation o f ove r-sensitive or failed airbag activa
tion. In some coll is ions, both front and side
airbags may i nflate. Remember too, that air
bags will deploy only o nce a nd only in certain
ki nds of coll is ions -your safety belts are al
ways t he re to offe r protection in those acc i
den ts in which a irbags a re no t supposed to
deploy or when they have already deployed .
The side airbag system will not deploy:
-when the ignit io n is turned off
- in side co llisions whe n the acceleration
measured by the sensor is too low
- in front-end collisions
- in rear -end co llisions
- in rollove rs .
In some types of ac cidents the front airbags,
s ide cu rtain air bags and s ide air bags may be
trigge red togethe r.
&_ WARNING ~
- Safety belts and the airbag system wi ll
only provide protection when occupants
are in the proper seating position
c::>page 174.
-If the airbag ind icator light c::> page 16
comes when the veh icle is being used,
have the system inspected immediate ly
by your authorized Audi dealer. It is pos
sible t hat the airbag will inflate when it
is not supposed to, or will not infla te
when it should.
•
•

-Objects between you and the airbag can
increase the risk of injury in an accident
by interfering with the way the airbag
unfolds or by being pushed into you as
the airbag inflates .
- Never place or attach accessories or
other objects (such as cupholders, tele
phone 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 use the built -in coat hooks only
for lightweight clothing . Never leave any
heavy or sharp-edged objects in the
pockets that may interfere with side air
bag deployment and can cause personal
injury in an accident.
- Always prevent the side a irbags from be
ing damaged by heavy objects knocking
against or hitting the sides of the seat
backs.
- The airbag system can only be trigge red
once.
If the airbag has been triggered,
the system must be replaced by an au
thorized Audi dealership .
- 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 ~ page 178, Child Safety .
- Never attempt to modify any compo
nents of the airbag system in any way .
- In a side collision, side airbags will not
function properly if sensors cannot cor rectly measure increasing air pressure in
side the doors when air escapes through
Airbag system 175
larger, unclosed openings in the door
panel.
- Never drive with interior door trim pan
els removed .
- Never drive when parts have been re
moved from the inside door panel and
the open ings they leave have not been
properly closed.
- Never drive when loudspeakers in the
doors have been removed unless the
speaker holes have been p roperly
closed.
- Always make certain that openings are
covered or filled if additiona l speakers
or other equipment is installed in the
inside door panels .
- Always have work on the doors done by
an authorized Audi dealer or qualified
workshop.
Side curtain airbags
Description of side curtain airbags
The side curtain airbag sy stem can provide
supplemental protection to properly restrain
ed occupants .
e R
'
a: a, m
Fig. 171 Side curta in syst em , dri ver's side: sid e cur tain
airb ag loc ation
The side curtain airbags are located on both
sides of the interior above the front and rear
side windows ~ fig . 171 . They are identified
by the word "AIRBAG" on the windshield
frame and the center roof pillar.
T he side curtain airbag system supplements
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 .,.

17 6 Airbag syst em
in a side collision. The side curtain airbag in
f lates in side impacts and on ly when the vehi
cle acce lerat ion reg istered by the contro l unit
is high enough. If this rate is below the refer
ence value programmed into the control unit,
the side airbags will not be triggered, even
though the car may be badly damaged as a re
sult of the collision.
It is not possible to de
fine an a irbag tr igger ing range that will cover
every possible angle of impact, since the c ir
cumstances w ill vary considerably between
one co llision and another . Important factors
include, for examp le, the nat ure (hard or soft)
of the impacting object, the ang le of impact,
vehicle speed, etc.
c:> page 176, How side cur
tain airbags work.
Aside from their 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 curtain airbags can pro
vide p rotection.
The airbag system is not a subst itute for your
safety belt. 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 wea ring
your safety be lt and wear ing it prope rly. This
i s ano ther reason why you shou ld always wear
your safety be lts, not jus t be ca use the law re
qu ires you to do soc;,
page 149, General
notes.
It
is important to remember that whi le the
side curtain a irbag sys tem is designed to he lp
reduce the like lihood o f serious injuries, other
inj uries, for example, swelling, bruising, and
minor abrasions can also be associated with
these airbags. Remember too, these airbags
will dep loy only once and only in certain k inds
of acc idents - your safety belts are always
there to offer protection.
The side curtain airb ag system b asic all y
consists of:
- The electronic control module and externa l
s ide impact sensors
- The side curtai n airbags above the front and
rear side w indows -
The airbag indicator light in the instrument
panel
T he airbag system is mo nitore d elec tronically
to make certain i t is func tioning properly at all
t imes . Each t ime yo u turn on the ignition, the
airbag system indicator light will come on for
a few seconds (sel f diagnostics).
The side curtain airbag is not activated:
- if the ignition is tur ned off,
- in side co llisions whe n the accele ration
mea sured by the sensor is too low,
- in rear-end col lisions.
A WARNING
- Safety belts and the airbag system will
only provide pro te ction when occupant s
are i n the proper seating posi tion
c:>page 61, General recommendations.
- If th e airbag ind ic a tor light c:>page 16
comes when the veh icle is being used,
have the system ins pected 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.
How side curtain airbags work
Side curtain airbags can work together with
side airbags to help reduce the risk of head
and upper torso injuries for occupants who
are properly restrained.
Fi g. 172 Illustration of p rinciple: I nflated side curtai n
a irbags on the left side
The side c urtain airbags inflate be tween the
occupant and the windows on the s ide of the
Ill-

vehicle that is struck in a side collision
~fig. 172.
When the system is triggered , the side curtain
airbag is filled with propellant gas and breaks
through a seam above the front and rear side
windows identified by the AIRBAG label. In or
der to help provide this additional protection,
the side curtain airbag must inflate within the
blink of an eye at very high speed and with
great force. The side curtain airbag could in
jure you if your seating position is not proper
or upright or if items are located in the area
where the supplemental side curtain airbag
inflates . This applies especially to children
~page 178.
Although they are not a soft pillow, side cur
tain airbags can "cushion" the impact and in
this way they can help to reduce the risk of in
jury to the head and the upper part of the
body.
A fine dust may develop when the airbag de
ploys. This is quite normal and does not mean
there is a fire in the vehicle.
Important safety instructions on the
side curtain 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 do to help the safety belts and
airbags do their job to provide supplemental
protection.
A WARNING
Improperly wearing safety belts and im
proper seating positions increase the risk
of serious personal injury and death when
ever a vehicle is being used.
- Never let occupants place any parts of
their bodies in the area from which the
side curtain airbags inflate.
-Always make sure that the side curtain
airbags can inflate without interference.
Unsuitable accessories fitted inside the
Airbag system 177
expansion range of a head airbag can
dangerously interfere with its function. A
deploying head airbag develops enough
force to catapult any piece of add-on
component out of its path of inflation
and into the passenger compartment. An
occupant hit by such a projectile can suf
fer serious injury or death~
page 296,
Technical Modifications.
-Do not swivel the sun visors to the side if
you have any objects clipped onto them
(for example pens). If the airbag should
deploy, you could be injured by these ob
jects.
- Use the built-in coat hooks only for light
weight clothing. Never leave any heavy or sharp-edged objects in the pockets that
may interfere with airbag deployment
and can cause personal injury in an acci
dent.
- Never use hangers to hang clothing from
the hooks.
- Only use factory-installed sun shades or,
in the case of shades installed after the
vehicle leaves the factory, only Audi roll up sunscreens may be used
~ page 295,
Additional accessories and parts re
placement.
- Always sit in proper seating position and
wear safety belts while traveling so that
the side curtain airbags can help provide
protection.
- 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 or qualified work
shop.
-Always have work involving the side cur
tain airbag system, removal and installa
tion of the airbag components, or other repairs performed by an authorized Audi
dealer or qualified workshop. Otherwise
the airbag system may not work correct
ly.
- Never attempt to modify any compo
nents of the airbag system in any way.
•
•

-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
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.
(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
Child Safety 1 79
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 .
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 ..,.
•
•

180 Child Saf ety
seat. The weight of a child restraint and its
"footprint" vary for different kinds of chi ld re
straints and for the d ifferent models of the
same kind of child restraint offered by child
restra int manufacturers .
The weight ranges for the individual types, makes and mode ls of ch ild restra ints that the
NHTSA has specified in the Safety Standard
together with the we ight ranges of typical in
fants and typical 1 year-old child have been
stored in the control unit of the Advanced A ir
bag System. When a ch ild restrai nt is being
used on the front passenger seat with a typi
cal 1 yea r-old ch ild, the Advanced Airbag Sys
tem compares the we ight measured by the
weight sensing mat with the in formation stor
ed in the electronic contro l unit.
The ele ctron ic cont rol unit also registers the
tension on the front passenge r safety belt.
The tension on the safety be lt fo r the front
passenger seat will be different for an ad ult
who is properly using the safety belt as com
pared to the tension on the be lt when it is
used to attach a child restraint to the seat.
The sensor below the latch for the safety belt
for the front seat passenger measu res the
tension on the be lt . T he input from this sen
sor is then used with the we ight to "dec ide",
whe ther there is a ch ild restraint w ith a typ ica l
1 year-o ld child on the front passenger seat
and whether or not the airbag must be turned
off .
Child restraints and Advanced Airbags
Regardless of the child restraint that you use,
make sure that it has been certified to meet
United States Federal Motor Vehicle Safety
Standards a nd has been certified by its manu
facture r fo r u se w ith an airbag . Always be s ure
that t he ch ild res traint is p rope rly insta lled at
one o f th e rear seat ing pos itions . If in excep
tional c ircu mstances you must use it on the
front passenger seat, caref ully read all of the
info rmation on c hild safety and Advanced Air
bags and heed a ll of the applicable WARN
INGS. Make certain that the child restraint is
correctly recognized by the weig ht-sensing mat
inside the front passenger seat, that the
front passenger airbag is turned off and that
the a irbag stat us is a lways cor rect ly signa led
by the
PASSENGER AIR BAG OFF light.
Many types and models of child res traints
have been available over the years, new mod
els are introduced regu larly incorporating new
and improved des igns and o lder models are
taken out of product ion. Ch ild restraints are
not standard ized . Child restraints of the same
type typically have d ifferent weights and sizes
and diff erent 'footpr ints,' the s ize and shape
of the bo ttom of the ch ild restra int that sits
o n t he seat, when they a re inst alled on a vehi
cle sea t. Th ese d ifferences make i t vir tually
impossible to certify compliance with the re
quirements for advanced airbags with eac h
and every ch ild restra int that has ever been
sold in the past or will be sold over the course of the useful life of your veh icle.
For t his reason, the United States National
Highway Traffic Safety Adm inistrat ion has
published a list of spec ific type, makes and
models of child restraints that mus t be used
to certify comp liance of the Advanced Airbag
System i n your veh icle w ith the suppression
requirements of Federal Motor Vehicle Safety
Standa rd 208. These chi ld restraints are :
Subpart A - Car bed child restraints
Model Manufactured on or
after
A ngel Guard A ngel September 25, 200 7
R ide AA 2403FOF
Subpart B - Rear-facing child restraints
Model Manufactured on or
after
Ce ntury Smart Fit Decembe r 1, 1999
4543
Cosco Arriva September 25, 2007
22-013PAW and base 22-999WHO
E venflo Discovery Ad -December 1, 1999
just Right 212

Model Manufactured on or
after
Evenflo First Choice December 1, 1999
204
Graco Infant 8457 December 1, 1999
Graco Snugride September 25, 2007
Peg Perego Primo Vi -September 25, 200 7
aggio SIP IMUN00US
Subpart C - Forward -fa cing and
c on vert ible child restraint s
Model Manufactured on or
after
Britax Roundabout September 25, 2007
E9L02xx
Cosco Touriva 02519 December 1, 1999
Cosco Summit Deluxe September 25, 2007
H igh Back Booster
22-262
Cosco High Back September 25, 2007
Booster 22-209
Evenflo Tribute V September 25, 200 7
379xxxx
Evenflo Medallion December 1, 1999
254
Evenflo Generations September 25, 2007
352xxxx
Graco Comfo rtSport September 25, 2007
Graco Toddler Safety September 25, 2007
Seat Step 2
Graco Platinum Ca rgo September 25, 200 7
A WARNING
To reduce the risk of serious injury, make
sure that the
P ASSENGER AIR BAG O FF
light comes on and stays on whenever a
child restraint is installed on the front pas
senger seat and the ignition is switched
on.
- Take the child restraint off the front pas
senger seat and install it properly at one
of the rear seat posi tions if the
PASSEN
GER AIR BAG OFF
light does not stay on.
Child Sa fet y 181
-Have the airbag system inspected by
your author ized Audi dealer immediate
ly.
(D Tips
The child seats listed in categories A to C have been statically tested by A udi on ly for
the Advanced A irbag function.
Important safety instructions for using
child safety seats
Correct use of child safety seats substantially
reduces the risk of injury in an accident!
As the driver, you are responsib le for the safe
ty of everybody in the veh icle, especially chil
dren:
... Always use the right child safety seat for
each child and always use it properly
¢page 184.
... Always carefully follow the child safety seat
manufacturer's instruct ions on how to route
the safety belt properly through the child
safety seat .
... When using the vehicle safety belt to install
a child safety seat, you m ust first activate
the convertible locking retractor on the
safety belt to prevent the child safety seat
from moving
¢page 188.
... Push the child safety seat down with yo ur
full weight to get the safety belt really tight
so that the seat cannot move forward or
sideways more than one inch (2 .5 cm) .
... If a strap or tether is be ing used to tie the
child safety seat to the front passenger
seat, make sure tha t it is not so tight that it
causes the weight-sens ing ma t to measure
more weight than is act ually on the seat.
... Secure unused safety belts on the rear seat
¢page 183.
Always remember: Even tho ugh you r vehicle is
equipped with an Advanced Airbag system, all
c h ildren, especially those 12 years and young
er, shou ld always r ide in the back seat proper-
ly restrained for the ir age and size. ..,. •
•