2015 AUDI S3 airbag

158 Airbag system
- and if the electrica 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 Vehicle 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
PAS ­
SENGER AIR BAG OFF
light will stay on . Nev­
er insta ll a rearward-facing child restraint on
the front passenger seat, the safest place for
a child in any kind of child restraint is at one
of the seat ing positions on the rear seat
¢ page 146, Child restraints on the front seat
- some important things to know
and
¢ page 170, Child Safety .
If the PASSENGER AIR BAG light comes
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
PASSENGER AIR BAG
OFF
light stays on cont inuously whenever the
ignit ion is on . If the
PASSENGER AIR BAG
OFF
l ight does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- reactivate the system by turning the ignition
off for more than 4 seconds and then turn­
i ng it on again;
- remove and re install the child restraint.
Make su re that the child restraint is properly
installed and that the safety belt fo r the
front passenger seat has been correctly
routed 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 activated and that the
safety belt has been pulled tight.
- make sure that no e lectrica l device (such as
a laptop, CD playe r, electronic games device,
power inverter or seat hea ter for child seats)
is placed or used on the front passenger seat
if the device is connected to the 12-volt
socket or the cigarette lighter socket;
- ma ke sure that no seat heater has been ret­
rofitted or 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
(such as a wet towe l) and no water or other
liquids on the front passenger seat cushion.
If the PASSENGER AIR BAG light still
does not come on ...
If the PASSENGER AIR BAG OFF light still
does not come on and does not stay on con ­
tinuous ly (when the ignition is switched on),
- take the child restraint off the front passen -
ger seat and install it properly at one of the
rear seat positions. Have the airbag system
inspected by your Audi dealer immed iately.
- move the child to a rear seat position and
make sure that the child is properly restrain­
ed in a ch ild restra int that is appropriate for
its size and age .
The PASSENGER AIR BAG light should
NOT come on ...
The PASSENGER AIR BAG OFF light should
NO T come on when the ignition is on and an
adult is s itting in a proper seating position on
the front passenger seat. If the
PASSENGER
AIR BAG OFF
light comes on and stays on or
flashes for about S seconds wh ile d riving, un­
der these circumstances, make sure that:
- the adult on the front passenger seat is
properly seated on the cente r of the seat
cushion with his or her back up aga inst the
backrest and the backrest is not reclined,
- the adult is not taking weight off the seat by
holding on to the passenger assist handle
above the front passenger door or support­
ing their weight on the armrest ,
- t he safety belt is being properly wo rn and
that there is not a lot of s lack in the safety
be lt webbing,
- there are no aftermarket seat covers or
cushions or other things (such as blankets) .,..

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on the front passenger seat that might cause the capa citive passenger detecti on
system to miscalcu late electrical capac i­
tance.
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
- If the status of the Adv a need Airb ag Sys­
tem has changed while the vehicle is
moving, the
PASSENGER AIR BAG OFF
light b links for about S 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
PASSENGER 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 pos it ions. Have the a irbag sys­
tem inspected by your authorized Audi
dealer before transporting anyone on the
front passenger seat .
A WARNING
An airbag system that is not funct ioning
properly cannot provide supplemental pro­
tection in a frontal crash.
- If the airbag indicator light
c> page 21
comes when the vehicle is be ing used,
have the system inspected immediately
by you r autho rized Aud i dea le r. It is pos­
sible that the a irbag will inf late when it
is not s upposed to, or w ill not inflate
when it sho uld.
A WARNING
If the front airbag infla tes, a ch ild witho ut
a child restraint, or in a rearward -facing
child safety seat, or in a forward-facing
child rest raint that has not been properly
installed will be serio usly injured and can
be killed.
-
A irbag system 159
-Even tho ugh you r vehicle is equipped
with an Advanced A irbag System, make
certa in that all children, espec ia lly 12
yea rs and younger, always ride on the
back seat prope rly rest rained for their
age and size .
- Always install forward o r rear-facing
child seats on the rear seat -even with
an Advan ced A irbag System.
- I f you must install a rearwa rd fac ing
child safety seat on the front passenger
seat because of exceptional circumstan­
ces and the
PASSENGER AIR BAG OFF
light does no t come on an d stay on, im­
mediately insta ll the rearward -fac ing
child safety seat in a rear seating posi­
tion and have the airbag system inspect­
ed by your authorized Audi dealer .
- If, in exceptiona l circumstances, you
m ust install a forward-fac ing ch ild 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 rang e, as fa r away from the a irbag
as poss ible. The backrest must be ad just­
ed to an upright pos ition. Make su re that
the
PASSENGER AIR BAG OFF light
comes on and stays on all the time when ­
eve r the ignit ion is switched on .
A\_ WARNING
-
-If the PASSENGER AIR BAG OFF light
does not go out when an a dult 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 le r before transporting
a nyone on the front passenger sea t.
(D Tips
If the capacitive passenger detection sys ­
tem determ ines that the front passenger
seat is empty, the fronta l airbag on the
passenger side will be t urned off, and the
PASSENGER AIR BAG OFF ligh t will s tay
on. •
•
•

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

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www.dtsc.ca.gov/hazardouswaste/per­chlorate. When the vehicle or parts of the
restraint system includ ing airbag modules
and safety belts with pretensioners are
scrapped, all applicable laws and regula­
tions must be observed. Your authorized
Audi dealer is familiar with these require­
ments and we recommend that you have
your dealer perform this serv 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 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 electron ic 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 .
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 insta lled on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
Airbag system 161
Knee airbags
Description of knee airbags
Applies to vehicles: wi th knee airbags
The knee airbag system can provide supple­
mental protection to properly restrained
front seat occupants.
Fig. 133 Driver's kn ee airbag
The dr iver knee airbag is in the instrument
panel underneath the steering wheel
¢
fig. 133, the airbag for the passenger is at
about the same height in the instrument pan­
el underneath the glove compartment.
The knee airbag offers additional protection
to the driver's and passenger's knees and up ­
per and lower thigh areas and supplements
the protection provided by the safety belts.
If the front airbags deploy, the knee airbags
also dep loy in frontal collisions when the de­
ployment threshold stored in the control unit
is met¢
page 154, More important things to
know about front airbags.
In addition to their normal safety function,
safety belts help keep the driver or front pas­
senger in position in a frontal collision so that
the airbags can provide supplemental protec­
tion.
The airbag system is not a substitute for your
safety belt. Rather, it is part of the overall oc­
cupant restraint system in your vehicle. Al­
ways remember that the airbag system can
only help to protect you if you are wearing
your safety be lt and wearing it properly. This
is why you should always wear your safety
belt, not just because the law requires you to
do so¢
page 135, General notes. ..,_

162 Airbag system
Remember too, airbags will deploy only once
and on ly in certain k inds of accidents -your
safety belts are always there to offer protec­
tion in those accidents in which airbags are
not supposed to deploy or when they have al­
ready deployed, for example when your veh i­
cle strikes or is struck by another after the
first coll is ion .
This is just one of the reasons why an airbag is
not a substitute for the safety belt . The airbag
system works most effectively when used with
the safety belts . Therefore, always wear your
safety be lts correctly .
It is important to remember that while the
supplemental knee airbag system is designed
to reduce the likelihood of serious injuries,
other injuries , for example , swell ing, bruising
and minor abrasions and friction burns can al­
so occur when an airbag inflates.
The knee airbag system basically consists
of:
- The elec tronic con trol module
- T wo inflatab le airbags (airbag and gas gen-
erator), one fo r the driver and one for the
front passenger
- T he airbag indicator light in the instrument
panel
The knee airbag system will not deploy:
-when the ign ition is switched off
- in frontal collisions when the deceleration
measured by the control unit is too low
- in side collisions
- in rear-end collisions
- in rollovers
- i n the event of a system malfunction (warn-
i ng/indicator light is on)
Q page 21.
.8, WARNING
-Safety belts and the airbag system can
only provide protection when occupants
are in the proper seating posit ion
Q page 154.
-If the airbag indicator light¢ page 21
comes when the vehicle is be ing used,
have the system inspected immediately
-
by your authorized Audi dealer. It is pos­
sible 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: wi th knee airbags
The risk of injury to the leg area can be re ­
duced by fully inflated knee airbags.
Fig . 134 Inflated a irbags protecting in a fronta l co lli­
sion
The knee airbag system has been designed so
that the airbags for the driver and front pas ­
senger deploy in certa in but not all frontal
collisions.
If the front airbags dep loy, the knee airbags
also dep loy in frontal collisions when the de­
ployment threshold stored in the control unit
is met.
When the system deploys, the airbags fill
with a compressed propellant gas, and inf late
between the lower part of the instrument
panel and the driver and the lower part of the
instrument panel and the front passenger
Qpage 154, fig. 131 .
Although they are not a soft pillow, they can
"cushion" the impact and in th is way they can
help to reduce the risk of injury to the lower
extremit ies .
All of th is takes place in the blink of an eye, so
fast that many people don't even realize that
the a irbags have deployed . The airbags also
i nflate with a great deal of force and it is im­
portant for occupant safety that nothing
shou ld be in their way when they deploy. ..,.

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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.
Important safety instructions on the
knee airbag system
A ppl ies to vehicles: with Knee airbags
Airbags are only supplemen tal 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 knee airbag system cannot protect
you properly if you are 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.
- 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 you and the airbag can increase
the risk of injury in an accident by inter­
fering with the way the airbag deploys or
Airbag system 163
by being pushed into you as the airbag
deploys.
- Never let anybody, especially children
or animals ride in the footwell in front
of the passenger seat.
If the airbag de­
ploys, this can result in serious or fatal
injuries.
- Never carry objects of any kind in the
footwell area in front of the driver's or
passenger's seat. Bulky objects (shop­
ping bags, for example) can interfere
with or prevent proper deployment of
the airbag. Small objects can be
thrown through the vehicle if the air­ 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 panel where the knee air­
bags are located.
- If children are incorrectly seated, their
risk of injury increases in a collision
~ page 170, Child Safety .
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 135 S ide a irbag locatio n in the driver's seat
The side airbags are located in the sides of the
front seat backrests~
fig. 135 and the rear
backrest facing the doors.
The side airbags installed for the front seating
positions have been designed and certified to
help reduce the risk of injury that can be
IJJJ,

164 Airbag sys te m
caused by airbags when they inflate, particu ­
l ar ly when the occupant sitting next to it is
not seated proper ly. The s ide a irbag for the
front passenger seat can be used with proper­ ly installed child restraints. Please be sure to
read the important information and warnings
wheneve r us ing a ch ild restrai nt in a vehicle:
Safety belts~
page 135, Airbag system
~ page 144, Child safety ~ page 170.
The si de ai rbag system ba sically 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 monitored elect ronica 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 t he risk of in­
jury to the driver's, front and rear passenger 's
upper torso on the side of the vehicle that is
struck in a side collision . The airbag deploys
only in s ide impacts and o nly when the veh icle
acceleration registered by the control un it is
h igh enough . If this rate is below the refer­
ence va lue programmed into the control u nit,
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 tr igger ing range that will cover
every possible angle of impact, since the cir­
cumstances will vary considerably between
one co llision and another . Important factors
include, for examp le, the nature (hard or soft)
of the impacting object, the ang le of impact ,
ve hicl e speed, etc.
~ page 165, Impor tant
safety instructions on the side airbag system.
Aside from the ir normal safety function, safe­
ty belts work to he lp keep the driver or front
passenger in position in the event of a side collision so that the side airbags can provide
protection.
T he airbag system is
not a substi tute for you r
sa fety belt . Rather, it is part o f the overa ll oc­
c u pant restra int system in you r vehicle . A l­
ways remember that the side airbag system can only help to protect you if you are wearing
your safety belt and wearing it proper ly. This
is another reason why you should always wear
your safety belts, not just because the law re ­
quires you to do so~
page 135, General
notes.
I t is important to remember that w hile the
supplementa l side airbag system is designed
to reduce the likelihood of ser ious inju ries,
other injur ies, for example, swelling, bru is ing ,
fr iction burns and m ino r abrasions can a lso be
associated w ith dep loyed side airbags. Re­
member too, side a irbags w ill dep loy on ly
once and on ly in ce rtain kinds of accidents -
your safety belts a re always the re to offer pro­
tection .
Vehicle damage , repair costs or even the lack
of ve hicle damage are not necessarily an indi ­
cation of over-sensitive or failed airbag activa­
t ion. In some coll is ions, both front and side
airbags may inflate. Remember too, that air­
bags will deploy only once and only in certain
k inds of collisions -your safety belts are a l­
ways the re to offer p rotection in those acc i­
dents in which airbags are not supposed to
deploy or when they have a lready deployed .
The side airbag system will not deploy:
-when the ignit ion is switched off
- in side co llisions when the acceleration
measured by t he senso r 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 togethe r.
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_& WARNING
-Safety belts and the airbag system will
only provide protection when occupants
are in the proper seating position
¢page 165.
-If the airbag indicator light¢ page 21
turns on when the vehicle is being used,
have the system inspected immediately
by your authorized Audi dealer.
It is pos­
sible that the airbag will inflate when it
is not supposed to, or will not inflate
when it should.
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.
Fig. 136 Side impac t protectio n: in flated side a irbags
When the system is triggered, the airbag is
filled with propellant gas and breaks through
a seam in the seat surface area marked "AIR­
BAG" . It expands between the side trim panel
and the passenger. In order to help provide
th is additional protection, the side airbag
must inflate within a fraction of a second at
very high speed and with great force. The sup­
plemental side airbag could injure you if your
seating position is not proper or upright or if
items are located in the area where the sup­
plemental side a irbag expands . This applies
especially to children ¢
page 170, Child Safe­
ty .
Supplemental side airbags inflate between
the occupant and the door panel on the side
~ of the vehicle that is struck in certain side col-o
iii lision ¢fig . 136.
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Airbag system 165
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 upper
part of the body.
A fine dust may develop when the airbag de­ ploys . T his 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 .
_& 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.