158 Airbag system
& WARNING
An airbag system that is not funct ioning
properly cannot provide supplemental pro
tect ion in a frontal crash.
- If the airbag indicator light
c:> page 19
comes when the vehicle is be ing used,
hav e the system inspected immed iate ly
by you r aut ho rized Aud i dea le r.
It is pos
sible that t he a irbag will inf late when it
i s n ot s upposed to, or w ill not in flate
when it sho uld .
PASSENGER AIR BAG OFF light
Fig . 160 Section from th e in strument panel: PASSEN
GER AIR BAG OFF ligh t
The PASSENGER AIR BAG OFF light is located
i n the center of the instrument panel
c> fig.160 .
The PASSENGER AIR BAG OFF light will come
on and stay on to tell you when the front Ad
vanced A irbag on t he passenger side has been
turned off by the e lectronic control unit. If the
bulb for the
PASSENGER AIR BAG OFF light
bu rns out, the a irbag ind icator light
II w ill
come on to s ignal a malfunction in the Ad
vanced A irbag System . Although the burned
ou t bu lb will no t change the way the front
passenger's frontal ai rbag wor ks, it w ill no
l onger be possib le to use the
PASSENGER AIR
BAG OFF
light to make sure tha t the airbag
on/off stat us is correct for the occupant on
the front passenger seat. Have the airbag sys
tem inspected immed iate ly by your author
ized A udi dealer.
The PASSENGER AIR BAG OFF light will blink
for about S se conds when:
- the ignition is switched on and
- t he capa citi ve passenger detection system,
which switc hes the front sea t 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
li ght stops b linking, a lways make sure that
the a irbag status (on or off) as shown by the
PASSENGER AIR BAG OF F 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 prope rly fastened .
The PASSENGER AIR BAG OFF l ight will
show the status of the front seat passenger 's
frontal Advanced Airbag a few s econds after
th e ignition i s switched on and the airbag in
dicator light goes off. The PASSENGER AIR
BAG OFF light :
- will stay on if the front passenger seat is not
occupied;
- will stay on if the electr ical capacitance
meas ured by the capacitive passenger de
tect ion system for th e front passenger s eat
equa ls the combined capacitance of a n in
fa nt up to abou t one ye ar of age and one o f
the rearward -facing or forw ard-f acin g ch ild
restraints listed i n Fede ral Motor Vehicle
Safety Standard 208 with which the Ad
vanced Airbag System in your vehicle was
cert ified; For a listing of the child restraints
that were used to certify your vehicle's com
pliance w ith the U.S . Safety Standard
c>page 173.
-will go out if the fro nt passenger seat is oc
cupied by an adult as registered by the ca
pacitive passenge r detection system .
- The
PASSENGER AIR BAG OFF light must
come on and stay on if the ignition is on
and . ..
- a car bed has been installed on the front
passe nger seat, or
- a rearward -facing child restraint has been
installed on the front passenger seat, or
- a forward-fac ing ch ild restra int has been in-
stalled on the front passenger seat, ..,_
M N
0 <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
-and if the e lectr ica l capacitance 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
PA S
SENGER AIR B AG OFF
light w ill stay on . Nev
er insta ll a rearward-fac ing ch ild restra int on
the front passenger seat, the safest place for
a child in any kind of child restraint is at one
of the seating positions on the rear seat
¢ page 147, Child restraints on the front seat
- some important things to know
and
¢ page 171, Child Safety.
If the PASSENGER AIR BAG light com es
on ...
If the PASSENGER AIR BAG OFF light 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 inuously whenever the
i gnit io n is on . If the
PASSENGER AIR B AG
OFF
light does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- 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 child restraint .
Make su re that the child rest raint is prope rly
installed and that the safety be lt fo r the
fron t passenger seat has been corre ct ly
ro uted through the child restraint as descri
bed in the chi ld restraint man ufacturer's in
structions;
- make sure that the convertible locking re
tractor on the safety belt for the front pas
senger seat has been act ivated and that the
safety belt has been pulled tight.
- make sure that no electrica l device (such as
a laptop, CD player, electronic games device,
power inver ter or seat heater for child seats)
is p laced or used on the front passenger
A irbag system 159
seat if the device is connected to the 1 2-volt
socket or the cigarette lighter socket;
- make sure that no seat heater has been ret
rofitted o r otherwise added to the front pas
senger seat;
- make s ure that nothing can interfere with
the safety belt buck les and that they are not
obstructed ;
- make sure that there are no wet objects
(s uch as a wet towe l) and no water or other
liquids on the front passenger seat cushion .
If the PASSENGER AIR BAG light still
doe s not c ome on ...
If the PASSENGER AIR BAG OFF light still
does not come on and does not stay on con
tinuously (when the ignition is switched on),
- take the child rest raint off the front passen -
ger seat and install it proper ly at o ne of the
rear seat positions. Have the airbag system
inspected by your Audi dealer immed iate ly.
- move the child to a rear seat position and
make sure that the child is properly restra in
ed in a ch ild restra int that is appropriate for
its size and age.
Th e PASSENGER AIR BAG light should
NOT come on ...
The PASSENGER AIR BAG OFF light should
NOT come on when the ignit io n is on and an
adult is s itting in a proper seating position on
the front passenge r seat . If the
PASSENGER
AIR BAG OFF
light comes on and stays on o r
flashes fo r about S seconds wh ile d riving, un
der these circumstances, make sure that:
- the adult on the front passenger seat is
prope rly seated on the cente r of the seat
cushion with his o r her back up aga inst the
backrest and the backrest is no t recli ned,
- the adult i s not tak ing weight off the seat by
holding on to the passenger assist handle
above the fron t passenger door or s upport
ing their weight on the armrest,
- the sa fe ty belt is bei ng properly wo rn and
tha t the re is not a lot o f slack in the safety
be lt webbing,
- there are no aftermar ket seat covers or
cushions or other things (s uch as blankets)
IJI>
•
•
160 Airbag sys te m
on the front passenger seat that might
cause the capacitive passenger detection
system to miscalcu late electrical capac i
tance.
Important safety instructions on
monitoring the Advanced Airbag System
_&. WARNING
- If the status of the Adv a need Airbag Sys
tem has changed while the vehicle is
moving, the
PA SSE NGER AIR BAG O FF
light blinks for about 5 seconds to catch
the driver's attent ion. If this happens, al
ways stop as soon as it is safe to do so
and check the steps described above.
- If the
PA SSE NGER AIR BAG OFF light
does not go off when an adult who is not
very small is sitting on the front passen ger seat after taking the steps descr ibed
above, make sure the adult is properly
seated and restrained at one of the rear
seating positions. Have the a irbag sys
tem inspected by your authorized Audi dealer before transporting anyone on the
front passenger seat.
_&. WARNING
An airbag system that is not funct ioning
properly cannot provide supplemental pro
tect ion in a frontal crash .
- If the airbag indicator light
c:> page 19
comes when the vehicle is be ing used,
have the system inspected immediate ly
by you r autho rized Aud i dea le r.
It is pos
sible that the airbag will inflate when it
is not s upposed to, or w ill not inflate
when it should.
_&. WARNING
If the front air bag infla tes, a ch ild witho ut
a child restra int, or in a rearward -fac ing
child safety seat, o r in a forward-facing
child restraint that has not been properly
installed will be serious ly injured and can
be killed. -
Even tho ugh you r vehicle is equipped
with an Advanced A irbag System, make
certain that all children, especially 12
years and younger, always ride on the
back seat p roperly restrained for their
age and size .
- Always install forward o r rear-facing
child seats on the rear seat -even with
an Advanced A irbag System.
- If you must install a rearwa rd-facing
child seat on the front passenger seat
because of ex ceptional circumstan ces
and the
PASSENGER AIR BAG OFF light
does not appear and s tay on, immediate
ly install the rear -facing child seat in a
rea r seating position and have the airbag
system inspected by you r Audi dealer.
- If, in exceptiona l circumstances, you
m ust install a forward-facing child re
straint on the front passenger seat, al
ways move the seat into its rearmost po sition in the seat's fore and aft adjust
ment range, as far away from the a irbag
as poss ible. The backrest must be adjust
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
eve r the ignit ion is swit ched on.
_&. WARNING
=
- If the PASSENGER AIR BAG OFF light
does not go out when an ad ult is sitting
on the front passenger seat after taking
the steps described above, make sure the
adu lt is properly seated and restra ined at
one of the rea r seat ing pos itions.
- Have the airbag system inspected by
your Aud i dea ler before t ransporting
anyone on the front passenger seat.
(D Tips
If the capac itive passenger detection sys
tem determ ines that the front passenger
seat is empty, the fronta l airbag on the
passenger side will be turned off, and the
PASSENGER AIR BAG OFF l ight will stay
on.
162 Airbag system
www .dtsc.ca.gov/hazardouswaste/per
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts wit h pretens ioners are
scrapped, all applicable laws and regula
tions must be observed. Your authorized
Aud i dea ler is familiar wit h these requ ire
ments and we recommend that you have
your dea le r 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 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 springs, suspen
sion st ruts, shock absorbers etc. can change
the forces that are measured by the a irbag
sensors and se nt to the electron ic control
un it. Some suspension changes can, for exam
p le, increase the force levels meas ured 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 a irbag
from deploying when it should.
A WARNING
Changing the vehicle's suspension includ
ing use of unapproved tire -rim combina
tions can change Advan ced A irbag per
formance and increase the risk of serio us
personal in jury in a crash.
- Never install suspension components
that do not have the same performance character istics as the components origi
nally installed on your vehicle.
- Never use tire-rim combinatio ns that
have not been approved by A udi.
Knee airbags
Description of knee airbags
Applies to vehicles: with knee airbags
The knee airbag system can provide supple
mental protection to properly restrained
front seat occupants.
F ig . 1 61 Driver's knee airbag
The driver knee airbag is in the ins trumen t
pane l underneath t he steering wheel
¢ fig. 161, the airbag for the passenger is at
about the same height in the instrument pan
el underneat h the glove compartment.
T he knee airbag offe rs additional p rotection
to the driver 's and passenger's knees and up
per and lower th igh areas and supplements
the protection provided by the safety belts.
If t he front airbags dep loy , the knee ai rbags
also dep loy in frontal coll isions when the de
ployment threshold stored in the contro l unit
is met
<=> page 155, More important things to
know about front airbags.
In addition to their norma l safety function,
safety belts help keep the dr iver or front pas
senger in position in a fronta l collision so that
the a irbags can provide supplemental protec
t ion .
The airbag system is not a substit ute for your
safety belt. Rather, it is part of the overa ll oc
cupant restra int system in your vehicle. Al
ways remember that the a irbag system can
o nly help to protect you if you are weari ng
your safety belt and wea ring i t properly. This
is why you should always wear your safety
belt, not just beca use the law requi res you to
do so
r::!;>page 136, General notes . ..,.
M N
0 I.J "". rl I.O
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"' rl
Remember too, airbags will deploy only once
and only in certain kinds of accidents -your
safety belts are a lways there to offer protec
tion in those acc idents in which airbags are
not supposed to deploy or when they have al
ready deployed, for example when your vehi
cle str ikes or is struck by another afte r the
fi rst coll is ion.
This is just one of the reasons why an a irbag is
not a substitute for the safety belt . The airbag
system wo rks most effectively when used with
the safety belts . Therefore, always wear your
safety bel ts correctly .
It is important to remember that while the
supplemental knee a irbag system is des igned
to reduce the like lihood of serious injur ies,
o ther in juries, fo r example, swel ling , bruising
and minor abras io ns and frict ion bu rns c an al
so occur when an airbag in flates.
The knee airbag system basically consists
of :
-The elec tronic control mod ule
- T wo inf latab le airbags (airbag and gas gen-
erato r), one for the driver and one for the
front passenger
- T he airbag ind icator light in the instrument
pane l
The knee airbag system will not deploy:
-when the ign ition is switc hed off
- in frontal collisions w hen the decelerat ion
measured by the control unit is too low
- in s ide collisions
- in rear-end collisions
- in ro llovers
- in the event of a system malfunct io n (wa rn -
i ng/indicator ligh t is on)
r::!>page 19.
& WARNING
- Safety belts and the airbag system can
only p rov ide protection when occ upants
are in the proper seating posit ion
c::>page 155.
-If the airbag indicator light c::> page 19
comes when the vehicle is be ing used,
have the system inspected immediately
A irba g sy stem 163
by your authorized A udi dealer. It is pos
sib le that the airbag will inflate when it
is not supposed to , or will not inflate
when it should .
How knee airbags work
Applies to vehicles: with knee airbags
The risk of injury to the leg area can be re
duced by fully inflated knee airbags.
~ N 0 :..c---0
i::....---ali
Fi g. 162 In flated a irbags protect ing in a fronta l coll i·
s ion
The knee airbag system has been designed so
that the airbags for the driver and front pas
senger deploy in certain but not all frontal
collisions.
If the front airbags dep loy, the knee airbags
also dep loy in fronta l collisions when the de
ployment th resho ld stored in the control unit
is met.
When the system deploys, the ai rbags fill
with a propellant gas, and inflate between the l ower part of the instrument pane l and the
driver and t he lower part of the instrument
panel and the front passenger
c::> page 155,
fig . 159 .
Although they are not a soft pi llow, they can
"cushion" the impact and in t his way they can
help to reduce the risk of injury to the lower
extremit ies .
A ll of th is takes place in the blink o f an eye, so
fast that many people don't even realize that
the a irbags have deployed. The airbags a lso
i nfla te with a g reat dea l of fo rce and i t is im
po rtant for occupant safety t hat nothing
sho uld be in their way whe n they deploy. ..,.
M N
0 <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
caused by airbags when they inflate, particu
l arly when the occupant sitting next to it is
not seated properly. The s ide a irbag for the
front passenger seat can be used with proper
ly installed chi ld res traints. Please be sure to
read the important information and warnings
whenever us ing a child restraint in a veh icle :
Safety belts
c::;, page 136, A irbag system
c::;, page 14 5, Child safety ~ page 171.
The side airbag system basically con sists of:
- the e lectronic control module and external
s ide impact sensors
- the two airbags located in the sides of the
front backrests and the two airbags* located
in the rear backrest
- the airbag warning light in the instrument
cluster.
The airbag system is monito red elect ron ica lly
to make certain that it is functioning properly
at all times. Each time you switch on the igni
tion, the airbag system indicator light will
come on for a few seconds (self diagnostics) .
T he side airbag system supplements the safe
ty belts and can help to reduce the risk of in
jury to the driver's, front and rear passenger's upper torso on t he side of the vehicle that is
struck in a side collision . The airbag deploys
only in s ide impac ts and on ly when the veh icle
acceleration registered by the control u nit is
hi gh enough . If this rate is below the refer
e nce va lue progr ammed i nto the con trol un it,
the side airbags will not be triggered, even
though the ca r may be badly damaged as a re
sult of the collision . It is not possible to de
f ine an a irbag trigger ing range that will cover
eve ry possible angle of impact, since the cir
cumstances will vary considerably between
one co llision and another . Important facto rs
in clude, for examp le, the natu re (hard o r soft)
of the impacting objec t, the ang le of impact ,
ve hicl e speed, etc. ~
page 1 66, Impor tan t
safety instructions on the side airbag sy stem.
Aside from the ir no rmal safety function, safe
ty belts wor k to he lp keep the d river or front
passenger in posi tion in the event of a side
Airbag system 165
collision so that the side airbags can provide
protection.
T he airbag system is
not a substi tute fo r your
s af ety belt . Ra ther, it is part o f the over all oc
cupant restra int system in you r vehicle . A l
ways remember that the side airbag system
can on ly help to protect yo u if you are wearing
your safety be lt and wearing it proper ly. This
is another reason why you should always wear
your safety be lts, not just because the law re
quires you to do so c::;,
page 136, General
notes.
It is important to remember that wh ile the
suppleme nta l side airbag system is desig ned
to r educe the likelihood of ser ious injuries,
othe r injur ies, for exampl e, swelling, bru is ing ,
friction bur ns and m ino r abrasions can a lso be
associ ated w ith dep loye d side airbags. Re
member too, si de a irbags w ill dep loy o nly
once an d only in ce rtain kinds of accidents -
yo ur safety be lts a re a lways there to offer p ro
tection .
Vehicle damage, repair costs o r even the lack
of ve hicle damage are not necessarily a n indi
cation of ove r-sensitive or failed airbag activa
tion. In some coll is ions, both front and side
a irbags may inflate. Remember too, that air
bags will deploy only once a nd only in certain
ki nds of col lisions - you r safety belts a re a l
ways t he re to offe r protection in those acc i
dents i n which a irbags are not supposed to
deploy or when they have a lready deployed .
The side airbag system will not deploy:
-when the ignit io n is switched off
- in side co llisions whe n the acceleration
meas ured by t he sensor is too low
- in front-end collisions
- in rear -end co llisions
- in rollove rs .
In some types of accidents the front airbags,
s ide cu rtain airbags and s ide a irbags may be
t rigge red together. .,,. •
•
168 Airbag sys tem
The side curtain airbags are located on both
sides of the interior above the front and rear
side windows ¢
fig. 165. They are ident ified
by the word "AIRBAG" on the windshie ld
frame and the center roof p illar.
The side curtain airbags contain features that provide e jection m itigat ion to he lp prevent ve
h icle occupants or parts of their bodies from
be ing completely or partially ejected from the
ve hicle interior in certain side impacts and ve
h icle rollovers.
The s ide curtain airbag system supp lements
the safety belts and can help to reduce the risk of injury for occupants' heads and upper
torso. The s ide curtain airbag inflates in side
impacts and only when the vehicle acce lera
tion registered by the control u nit is high
enough. If t his rate is below the reference val
ue programmed into the control unit, the s ide
curtain ai rbag 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
f ine an a irbag tr igger ing range that will cover
every possible angle of impact, since the cir
cumstances wi ll vary considerably between
one coll ision and another. Important factors
include, for examp le, the natu re (hard o r soft)
of the impacting object, the ang le of impact ,
ve hicl e speed, etc. ¢
page 169, How side cur
tain airbags work .
Aside from their normal safety function, safe
ty belts wor k to he lp keep t he d river or front
passenger in posi tion in the event of a co ll i
sion so tha t the side curta in ai rbags can pro
vide protection.
The airbag system is not a s ubst itute for your
safety be lt. R athe r, it is p art of the overall oc
cupant restraint system in your ve hicle . Al
ways remember that the airbag system can
on Ly help to protect you if you are wearing
your safety belt and wear ing it properly. Th is
is another reason w hy you should always wear
your safety belts, not just because the law re qu ires you to do so¢
page 136, General
notes .
It is important to remembe r that wh ile the
side curtain airbag system is designed to help
reduce the likelihood of ser ious injuries, other
injur ies, for example, swelling, br uising, fric
t ion burns and minor abras ions can also be as
sociated w ith these airbags upo n deployment .
Remember too, these airbags will deploy only
once a nd on ly in ce rtain kinds of accide nts -
yo ur safety belts a re always the re to offer p ro
tection .
The side curtain airbag system basic ally
consists of:
- The e lectro nic co ntrol module and external
side impa ct sensors
- The side curtain a irbags above the front and
rea r side windows wit h ejection mitigation
fe atu res
- The a irbag i ndicator lig ht in the inst rument
pa nel
The airbag system is mon itored electronically
to make ce rtain it is functioning prope rly at all
t imes. Each time you sw itch on the ign ition,
t h e airbag system ind icator light will come on
f o r a few seconds (sel f diagnos tics) .
The side curtain airbag is not activated:
-if the ignition is sw itched off,
- in side co llisions whe n the acceleration
measu red by the sensor is too low,
- in rear-end collisions.
A WARNING
-Safety belts and the airbag system will
only provide protection when occupants
are in the proper seating posi tion
¢ page 52, General re commendations.
- If the ai rbag ind icator light ¢ page 19
comes when the veh icle is being used,
have the system inspe cted immedia tely
by your au thori zed A udi deale r.
It is pos
sible tha t the airbag will infla te when it
is not supposed to, or will not inflate
when it should.
172 Child Safety
-Always install rear-facing child safety
seats on the rear seat.
- If you must install a rearward facing
child safety seat on the front passenger
seat in exceptional circumstances and
the
PASSENGER AIR BAG OFF light does
not come on and stay on, immediately
install the rear-facing child safety seat in
a rear seating position and have the air
bag system inspected immediately by
your Audi dealer.
_&, WARNING
- Forward-facing child seats installed on
the front passenger seat may interfere
with the deployment of the airbag and
cause serious personal injury to the
child.
- If exceptional circumstances require the
use of a forward-facing child restraint on
the front passenger 's seat, the child's
safety and well-being require the follow ing special precautions to be taken:
- Always make sure that the forward-fac
ing seat has been designed and certi
fied by its manufacturer for use on a
front passenger seat with a front and
side airbag.
- Always carefully follow the manufac
turer's instructions provided with the
child seat or infant carrier.
- Never install a child restraint without a
properly attached top tether strap if
the child restraint manufacturer's in
structions require the top tether strap
to be used.
- Never put the forward-facing child re
straint up against or very near the in
strument panel.
- Always set the safety belt upper an
chorage to the adjustment position
that permits proper installation in ac
cordance with the child restraint manu
facturer's instructions.
-Always move the passenger seat into
its rearmost position in the seat's fore
and aft adjustment range, as far away
.
from the airbag as possible before in
stalling the child restraint. The back
rest must be adjusted to an upright po
sition .
- Always make sure that nothing pre
vents the front passenger's seat from
being moved to the rearmost position
in its fore and aft adjustment range.
- Never place objects on the seat (such
as a laptop, CD player, electronic
games device, power inverter or seat
heater for child seats) . These may in
fluence the electrical capacitance
measured by the capacitive passenger
detection system and can also fly
around in an accident and cause serious
personal injury.
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat
heater for child seats) on the front pas
senger seat if the device is connected
to the 12 -volt socket or the cigarette
lighter socket.
- If a seat heater has been retrofitted or
otherwise added to the front passen
ger seat, never install any child re
straint system on this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or
other liquids on the front passenger
seat cushion .
- Always make sure that the
PASSENGER
AIR BAG OFF
light comes on and stays
on all the time whenever the ignition is
switched on.
- If the PASSENGER AIR BAG OFF light
does not come on and stay on, immedi
ately install the forward-facing child seat in a rear seating position and have
the airbag system inspected by your
authori zed Audi dealer.
- Always buckle the child seat firmly in
place even if a child is not sitting in it.
A loose child seat can fly around during
a sudden stop or in a collision.
~