Control AUDI A4 2018 Owners Manual

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about children and Advanced Airbags
¢page 295 .
Even though yo ur vehicle is equipped with an Ad­
vanced Airbag System, make certain that all chil­
dren, especially those 12 years and younger,
a l­
ways ride in the back seat properly restrained for
their age and size. The airbag on the passenger
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 forward-facing child
safety seat .
It can be a very dangerous place for
a n infant or a child in a rearward-fac ing seat.
The Advanced Airbag System in your veh icle has
been certified to comply with the requirements
of United States Federal Motor Vehicle Safety
Standa rd (FMVSS) 208, as well as Canada Motor
Veh icle Safety Standa rd (CMVSS) 208 as applica­
b le a t the time your veh icle was m an ufact ured.
Accord ing to requirements, the front Advanced
Airbag System on the passenger side has been
certified for "suppression" for infants of about 12 month old and younger and for "low risk
de­
ployment" for children aged 3 to 6 years old (as
defined in the standard) .
The
PASSENGER AIR BAG O FF ~ ; light in the
headliner tells you when the front Advanced Air­
bag on the passenger side has been turned off by
the electronic control unit.
Each time yo u turn on the ignition, the
PASSEN ­
GER AIR BAG OFF
~; ON @ light will come on
for a few seconds and:
- PASSENGER AIR BAG OFF ~; will come on if
the front passenger seat is not occupied
- PASSENGER AIR BAG OFF ~; will come on if
the e lectrica l capacitance measured by the
ca­
pacitive passenger detection system for the
front passenger seat equa ls the comb ined
ca­
pacitance of an infant up to about one year of
age and one of the rearward-facing or forward ­
facing child restra ints listed i n Federa l Moto r
Vehicle Safety Standard ( FMVSS) 208 with
wh ich the Advanced Airbag System i n your veh i­
cl e was certified . Fo r a listing of the child
re ­
straints that were used to ce rtify you r vehicle 's
compliance with the Safety Standard
¢ page 297 .
Airb ag sys tem
-PAS SENGER AIR BAG OFF ~; will come on if
there is a small chi ld or child restraint on the
front passenger seat
- PASSENGER AIR BAG ON @ will come on if the
front passenger seat is occupied by an ad ult as
registered by the capacit ive passenger detec­
tion system
¢ page 283, Monitoring the Ad­
vanced Airbag System .
The PASSENGER AIR BAG OFF ~; light comes on
when e lectrical capacitance registered on the
front passenger seat is equal to or less than the
combined capacitance of a typical 1 year-old
in­
fant and one of the rearward-facing or forward ­
facing child restrai nts listed in Federal Motor Ve­
hicle Safety Standard ( FMVSS) 208 with wh ich
the Advan ced Airbag System in yo ur vehicle was
ce rtified.
If the total electr ical capacitance reg istered on
t h e front passenger seat is mo re than that of a
typ ical 1 year -old ch ild but less than the weight
of a sm all adult, the front air bag on the passen­
ger side can deploy (the
PASSENGER AIR BAG
OFF ~; light does not come on) .
If the
PASSENGER AIR BAG OFF ~; light does
not come on, the front airbag on the p assenger
s ide has not been turned off by the electronic
contro l unit and can deploy if the contro l unit
senses an impact that meets the conditions stor­
ed in its memory.
For example , the airbag may deploy if :
-a small c hild that is heav ier than a typ ica l 1
year -o ld child is on the front passenger se at
(regardless o f whethe r the child is in one o f the
child sa fe ty seats listed
¢ page 29 7), o r
- a child who has outgrown c hild rest raints is on
t he front passenge r seat .
If the front passenge r airbag is t urned off, the
PASSENGER AIR BAG OFF ~; light comes on i n
t h e headliner a nd stays o n.
If the front passenger a irbag deploys, the Feder­
al Standard requi res the airbag to meet the "low
r isk " dep loymen t criteria to redu ce the r isk of
in­
j u ry through interaction w it h t he airbag. "Low
risk" deployment oc curs in those crashes that
take place at lowe r decelerations as defined in
Ill>
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Airbag syste m
the electronic control unit¢ page 283, PASSEN­
GER AIR BAG
OFF~; ON@ light.
A lways remember, a child safety seat or infant
carrier installed on the front seat may be struck
and knocked out of position by the rapid ly inflat­
ing passenger's airbag in a fronta l co llision. The
airbag cou ld greatly reduce the effect iveness of
the child restraint and even seriously injure the
child during inflation.
For this reason, and because the back seat is the
safest place for ch ildren
-when properly restra in­
ed according to the ir age and size
-we strong ly
recommend that children always sit in the back
seat ¢ page 295, Child safety.
A WARNING
A child in a rearward-facing child safety seat
installed on the front passenger seat w ill be
ser iously injured and can be killed if the fron t
airbag infla tes
-even w ith an Advanced Ai rbag
System.
- T he inflating a irbag w ill hit the child safety
seat or infant carrier with great force and
will smash the chi ld safety seat and child
against the backrest, center armrest, door
or roof.
- Always install rear -facing child safety seats
on the rear seat .
- If you must install a rearward facing ch ild
safety seat on the front passenger seat be­
cause of exceptiona l circumstances and the
PA SSENGER AIR BAG OFF ~; light does not
come on and stay on, immed iately install
the rear-fac ing ch ild safety seat in a rear
seat ing pos ition and have the airbag system
inspected by your authorized Audi dea ler.
- Forward-facing ch ild safety seats installed
on the front passenger's seat may interfere
with the deployment of the airbag and ca use serio us pe rsonal injury to the child.
A WARNING
If, in except ional circumstances, you must i n­
stall a forward -facing chi ld res train t on the
front passenger's seat:
- Alw ays make sure the forward-facing seat
has been designed and ce rt ified by its man-
274
ufacturer for use on a front seat with a pas­
senger front and side airbag.
- Never put the forward-facing child restraint
up against or very near the instrument pan­
el.
- Always move the front passenger seat to
the highest posit ion in the up and down ad­
justment range and move it back to the
rearmost posit ion in the seat's fore and aft
ad justment range, as far away from the a ir­
bag as poss ible, before installing the for­
ward-facing chi ld restraint.
- Always make sure that the safety be lt upper
anchorage is behind the ch ild rest raint and
not next to o r in front of the child rest raint
so th at the safety be lt will be p roperly posi­
tioned.
- Ma ke sure that the
PASSENGER AIR BAG
OFF
~; light comes on and stays on all the
time wheneve r the ign it ion is switched on .
A WARNING
To reduce the risk of serious injury, make sure
that the PASSENGER AIR BAG OFF~; light
will be disp layed whenever a ch ild restraint is
installed on the front passenger seat and the
ignit ion is switched on.
- If the
PASSENGER AIR BAG OFF ~; light
does not stay on, perform the checks descri­
bed
¢ page 283, Monitoring the Advanced
Airbag System.
- Take the child restra int off the front passen­
ger seat and install it properly at one of the rear seat positions if the
PASSENGER AIR
BAG
OFF ~ light does not stay on .
- Have the airbag system inspected by your author ized Audi dealer immed iate ly.
- Always carefully follow instructions from
child restraint manufacturers when instal­
ling child restra ints.
A WARNING
If, in exceptional ci rcumstances, you must in­
stall a forward or rearward-fac ing child re-
stra int on the fron t passenger's seat:
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The front Advanced Airbag System for the front
seat occupants is not a substitute for your safety be lts. Rather, it is part of the overa ll occupant re ­
straint system in your vehicle. A lways remember
that the airbag system can on ly help to protect
you, if you are sitting upr ight, wear ing your safe­
ty belt and wear ing it properly. This is why you
and your passengers must always be properly re­
stra ined, not just because the law requ ires you to
be.
The Advanced Airbag System in your ve hicle has
been certified to meet the
"low r isk" require­
ments for 3 and 6 yea r-old children o n the pas­
senger side and very sma ll adults on the drive r
side . The low r isk dep loyment cr iteria are intend­
ed to help reduce the risk of injury through inter­
action with the front airbag that can occur, for
examp le, by being too close to the steering wheel
and instrument pane l when the airbag inflates.
I n addition, the system has been certified to
comp ly with the "supp ression" requirements of
the Safety Standard, to turn off the front a irbag
for infants 12 months old and younger who are
restrained on the front passenger seat in child re­
stra ints that are listed in the Standard
c::> page 297, Child restraints and Advanced Air­
bags.
"Suppress ion" requ ires the front a irbag on the
passenger side to be turned off if:
- a ch ild up to about one year of age is restrained
on the front passenger seat in one of the rear­
facing or forward-fac ing infant restra ints listed
in Federal Motor Vehicle Safety Standard 208
with wh ich the Advanced Airbag System in your
vehicle was ce rt ified. For a listi ng of the ch ild
restra ints tha t were used to certify your veh i­
cl e's compl iance with the US Safety St andard
c::> page 297,
- When a person is dete cted on the front passen­
ger seat that has an electrical capacitance that
is more than the tota l electrical capac itance of
a ch ild that is about 1 year old restrained in one
of the rear-facing or forward-facing infant re­
straints (listed in Federal Motor Vehicle Safety
Standard 208 w ith which the Advanced A irbag
System in your veh icle was certified), the front
Airb ag sys tem
airbag on the passenger side may or may not
dep loy.
T he
PASSENGER AIR BAG OFF ~; ligh t comes on
whe n the elect ronic con trol uni t detects a tota l
electrical capacitance on the front passenger seat
that requires the front airbag to be turned off. If
the
PASSENGER AIR BAG OF F~; light does not
come on, the front airbag on the passenger side
has not been turned
off by the contro l unit and
can deploy if the contro l unit senses a n impact
that meets the cond itions stored in its memory.
If the total e lectr ica l capacitance reg istered on
the front passenger seat is more than that of a
typ ical 1 year-old, b ut less than the weight of a
small ad ult, the front a irbag on the passenger
s ide may dep loy (the
PASSENGER AIR BAG OFF
~; light does not come on).
For example, th e airbag may deploy if:
- a small ch ild that is heav ier than a typ ical 1
year-o ld child is on the front passenger seat
(regardless of whether the child is in one of the
child safety seats listed
c:> page 297),
- a child who has outgrown c hild restraints is on
the front passenger seat.
If the front passenger airbag is t urned
off, the
PASSENGER AIR BAG OFF ~; light in the head­
liner w ill come on and stay on.
If the front passenge r airbag deploys, the Feder­
al Standard requ ires the a irbag to meet the " low
risk" deployment criteria to help reduce the r isk
of inj ury through interaction with the airbag.
"Low risk" deployment occurs in those crashes
that take place at lower decelerations as defined
i n the electronic control unit .
c::>page 283
Always remember: Even though your vehicle is
equipped with Advanced Airbags, the safest place
for childre n is properly restrained on the back
seat. Please be sure to read the impor tant infor­
mation in the sec tions that fo llow and be sure to
heed all of the WARNINGS.
_& WARNING
To redu ce the risk of injury when an airbag in-
f lates, always wear safe ty belts properly.
llill-
277

Airbag syste m
-If you are unrestrained, leaning forward, sit­
ting sideways or out of position in any way,
your risk of injury is much higher.
- You will also receive serious injuries and
could even be killed if you are up aga inst the
airbag or too close to it when it inflates
-
even with an Advanced Airbag ¢ page 2 71.
A WARNING
A child in a rearward-facing child safety seat
installed on the front passenger seat w ill be
ser iously injured and can be killed if the front
airbag inflates
-even w ith an Advanced Airbag
System.
- Although the Advanced A irbag System in
yo ur vehicle is designed to turn off the front
airbag when a rearward-facing child re­
straint has been insta lled on the front pas­
senger seat, nobody can absolutely guaran­
tee that deployment is impossible in all con­ ceivable s ituations that may happen during
the useful life of your vehicle.
- The inf lating airbag will hit the child safety
seat or infant carrier with great force and
will smash the chi ld safety seat and child
against the backrest, center armrest, door,
or roof.
- Always install rearward-facing ch ild re­
straints on the rear seat.
- If you must install a rearward fac ing ch ild
safety seat on the front passenger seat be­
cause of exceptiona l circumstances and the
PAS SENGER AIR BAG OFF ~; light does not
come on and stay on, immed iate ly install
the rear-fac ing ch ild safety seat in a rear
seating position and have the airbag system
inspected by your authorized Audi dea ler.
A WARNING
If, in exceptional circumstances, you must in­
stall a forward-facing chi ld restraint on the
front passenger's seat:
- Always make sure the forward-facing seat
has been designed and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and side a irbag.
278
- Never put the forward-facing child restraint
up against or very near the instrument pan­
el.
- Always move the front passenger seat to
the highest posit ion in the up and down ad­
justment range and move it back to the rearmost posit ion in the seat's fore and aft
ad justment range, as far away from the a ir­
bag as poss ible, before install ing the for­
ward-facing chi ld restraint.
- Always make sure that the safety be lt upper
anchorage is behind the ch ild rest raint and
not next to o r in fron t of the child rest raint
so that the safety be lt will be properly posi­
tioned.
- Always make sure th at there is noth ing on
the front passenger seat that will cause the
capacitive passenger detection system in
the seat to signal to the Airbag System that
the seat is occup ied by a person when it is
not, or to signal that it is occupied by some­
one who is heavier than the person actually
sitt ing on the seat. The presence of addi­
tional objects could cause the passenger
front airbag to be turned on when it should
be off, or could cause the airbag to work in a
way that is d ifferent from the way it wou ld
have worked withou t the objec t on the seat .
- Ma ke sure that the
PASSENGER AIR BAG
OFF
"1; light comes on and stays on all the
time wheneve r the ignit ion is switched on .
' Advanced Airbag System components
The front passenger seat in your vehicle has a lot
of very important parts of the Advanced Airbag
System in it. These parts include the capacitive passenger detection system, wir ing, brackets,
and more. The control unit monitors the system
on the front passenger seat when the ignit ion is
switched on and turns the airbag indicato r light
o n when a malfunction in the one of the system
components is detec ted
¢ page 283. Because
t h e fron t passenger seat contains impo rtant
parts of the Advanced Ai rbag System, you must
take care to prevent it from being damaged .
Damage to the seat may prevent the Advanced
.,.

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Airbag System for the front passenger seat from
doing its job in a crash.
The f ront Ad vanced Airb ag S ystem con sists
of t he follo wing :
-Crash sensors in the front of the vehicle that
measure vehicle acceleration/deceleration to
provide information to the Advanced Airbag
System about the severity of the crash.
-An electronic control un it, with integrated
crash sensors for front and side impacts. The
control unit "decides" whether to fire the front
airbags based on the information received from
the crash sensors. The control unit also
"de­
c ides" whether the safety belt pretens ioners
shou ld be activated .
-An Advanced Airbag with gas generator and
contro l valve for the driver ins ide the steer ing
wheel hub.
-An Advanced Airbag with gas generator and contro l valve inside the instrument pane l for
the front passenger.
-A capac itive passenger detect io n system unde r­
neath the front passenger seat cover. This sys­
tem measures the elect rical capac ita nce of the
person in the seat. The i nformation registe red
is sent continuously to the electron ic control
unit to regulate deployment of the front Ad­
vanced Airbag on the passenger side.
-An airbag monitoring system and indicator
light
m in the instrument cluster .
-A sensor in each front seat reg isters the dis­
tance between the respective seat and the
steering wheel or instrument panel. The infor­
mation reg istered is sent continuously to the
electronic control unit to regulate deployment
of the front Advanced A irbags.
-The PA SS EN GER AIR BAG OFF ~; ON@ light
comes on in the
headliner¢ page 283,
fig. 241 and tells you the status of the Ad­
vanced Airbag on the passenge r side .
-A sensor in the safety belt latch for the dr iver
and for the front seat passenger that senses
whether that safety belt is latched or not and
transm its this info rmat ion to the elect ronic
contro l unit.
Airb ag sys tem
_& WARNING
Damage to the front passenger seat can pre­
vent the front airbag from working properly.
- Improper repair or disassembly of the front
passenger and driver seat will prevent the
Advanced Airbag System from funct ion ing
properly.
- Repairs to the front passenger seat must be
performed by qualified and properly trained
workshop personnel.
- Never remove the front passenger or driver seat from the vehicle.
- Never remove the upholstery from the front
passenger seat.
- Never disassemble or remove parts from the
seat or disconnect w ires from it.
- Never carry sharp objects in your pockets or
put them on the seat. The capacit ive pas­
senger detect ion mat in the front passenger
seat will not function p roperly if it is punc­
tured.
- Never carry things on your lap or carry ob­
jects on the front passenger seat. S uch ob­
jects can influence the capacitance reg is­
tered by the capacitive passenger detection
system, so that incorrect informa tion is pro­
vided to the airbag control unit.
- Never store i tems unde r the front passenger
seat . Parts of the Advanced Airbag System
under the passenger seat could be dam­
aged, p reventing them and the airbag sys­
tem from working proper ly.
- Never p lace seat covers or replacement up­
holstery that have not been specifically ap­
proved by Audi on the front seats.
- Seat covers can prevent the Advanced A ir­
bag System from recognizing chi ld re­
stra ints or occupants on the front passenger
seat and prevent the side airbag in the seat
backrest from deploying properly.
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any child restra int system on
this seat.
- Never use cushions, p illows, blankets, or
similar items on the front passenge r seat .
279

Airbag syste m
The additio na l l ayers prevent the capacitive
passenger detection system from accurately
measuring the capac itance of the ch ild safe­
ty seat and/or the person on the seat and
thus keep the Advanced Airbag System from
working p roperly.
- Never place or use any electrical device (such as a laptop, CD player, elect ronic
games dev ice, power inverte r or seat heater
for child seats) on the front passenger seat
if the device is connected to the 12-vol t
socket or the cigarette lighter socket . S uch
devices can infl uence the capacitance regis­
tered by the capacitive passenger detection
system, so that incorrect information is pro­
vided to the airbag control unit.
- If you must use a c hild restraint on the front
passenger seat and the child restraint man­
ufacturer's instructions require the use of a
towel, foam cushion or something else to prope rly position the ch ild restraint, make
certain that the
PASSENGER AIR BAG OFF
~; light comes on and stays on whenever
the chi ld restraint is installed on the front
passenge r seat .
-If the PASSENGER AIR BAG OFF ~; light
does not come on and s tay on , immediate ly
ins tall child restra int in a rea r seating posi­
tion and have the airbag system inspected
by you r A udi dealer.
_& WARNING
If the front passenger seat gets wet, dry it im­
mediately.
- If liquid soaks into the front passenger seat,
this can keep the a irbag system from work ­
ing prope rly and may, for instance, deact i­
vate the passenger frontal airbag. If this happens, the
PASSENGER AIR BAG OFF ~;
light will come on and stay on togethe r with
the a irbag ind icator
light E,I in the inst ru­
men t cluster.
- If liquid is poo led on the seat, bu t has not
soa ked i n, this may also keep the airbag sys­
tem from wo rking properly and ca use the
passenge r frontal a irbag to be enabled
(tu rned on), even though there is a properly
280
installed child rest raint system on the seat .
Wet towels or other wet things on the seat
cushion can have the same effect.
If the
front passenger fronta l airbag is turned on,
t he
PASSENGER AIR BAG OFF ~; light light
w ill go out.
How the Advanced Airbag System
components work together
The front Advanced A irbag System and the side
airbags supp lement the p rotection offered by the
front three-point safety be lts and the adjustable
head restraints to he lp reduce the risk of injury in
a wide range of accident and crash situat ions. Be
sure to read the important i nformat ion about
safety and heed the WARNINGS in this chapter .
Deployment of the Advanced A irbag System and
the activation of the safety belt pretensioners de­ pend on the dece leration measured by the crash
sensors and registered by the elec tronic contro l
u nit . Crash severity depends on speed and decel­
e ration as well as the mass and stiffness of the
vehicle or object invo lved in the cras h.
On the passenger side, regard less of safety be lt
u se, the front passenge r frontal airbag will be
turned off if t he e lectr ica l capaci tance m easured
by the capaci tive p assenge r detection system o n
t h e fron t passenger sea t is less th an the amou nt
programmed in t he e lec tronic cont ro l unit. The
front passenger frontal airbag wi ll also be turned
off if the capacitance measured by the system for
the front passenger seat equals that of an infant
of about one year of age in one of the child seats
that was used to certify the Advanced Airbag Sys­
tem under Federal Motor Vehicle Safety Standard 208. The
PASSENGER AIR BAG OFF ~; light
comes on and stays on to tell you whe n the front
Advanced Airbag System on the passenge r side
has been tu rned
off~ page 283.
_& WARNING
T o reduce the ris k of injury when an airbag in ­
f lates, always wea r safety belts prope rly.
- If you are un res trained, leaning forward, sit­
ting sideways or out of position in any way,
your r isk of injury is much higher.

- You will also receive serious injuries and
could even be killed if you are up aga inst the
airbag or too close to it when it inflates
-
even with an Advanced Airbag 9page 271.
More important things to know about front
airbags
F ig. 2 40 Inflated front a irbags
0 0 M
-.a ;z
Safety belts are important to help keep front
seat occupants in the proper seated position so
that airbags can unfold properly and provide sup­ p lemental protection in a frontal collision.
The front airbags are designed to provide addi­
tional protect ion for the chest and face of the
driver and the front seat passenger when:
- safety belts are worn properly
- the seats have been positioned so that the
oc-
cupant is properly seated as far as possible
from the airbag
- and the head restraints have been properly ad-
justed
Because airbags inflate in the blink of an eye w ith
great force, things you have on your lap or have p laced on the seat could become dangerous pro­
jectiles, and be pushed into you if the airbag in­ flates .
When an airbag deploys, fine dust is released.
This is normal and is not caused by a fire in the
veh icle. This dust is made up mostly of a powder
used to lubricate the airbags as they deploy . It
could irr itate skin .
It is important to remember that while the sup­ plemental airbag system is designed to reduce
the likelihood of ser ious injuries, other injuries,
for example swelling, bruising and minor abra-
Airb ag sys tem
sions, can also happen when airbags inflate. Air­
bags do not protect the arms or the lower parts
of the body. Front airbags supp lement the three­
point safety belts only in some frontal collisions
in which the vehicle dece leration is high enough
to deploy the airbags .
Front airbags will not depl oy :
- if the ignition is switched off when a crash oc-
curs
- in side co llisions
- in rear-end coll isions
- in rollovers
- when the crash deceleration measured by the
ai rbag system is less than the m inimum thresh­
old needed for airbag dep loyment as registe red
by the electronic control un it
The front pass enge r airbag also w ill not
deploy:
- when the fron t passenger seat is not occupied,
- when the e lectr ical capacitance measured by
t he capacit ive passenger detection system for
the front passenge r seat ind icates that the pas­
senger side frontal airbag m ust be switched off
by the electronic control unit (the
PASSENGER
AIR BA G OFF
"1; light 9 page 283 comes on
and stays on).
_& WARNING
Sitting in the wrong position can increase the
risk of ser ious injury in crashes.
- To reduce the risk of injury when the a irbags
inflate, the driver and passengers must al­
ways sit in an upright posit ion, must not
lean aga inst or place any part of their body
too close to the area where the airbags are lo cated.
- Occupants who are unbelted, out of posit ion
or too close to the airbag can be serio usly
inj ured by an airbag as it unfolds wi th g reat
for ce in the blink of an eye
r:!>page 2 72.
_& WARNING
A child in a re arward-fa cing child safety seat
i nsta lled on t he front passenger sea t will be
serious ly in jured and can be ki lled if the front
Iii-
281

Monitoring the
Advanced Airbag System
Airbag monitoring indicator light
Two separate indicators monitor the fun ction of
the A dvanced Airbag System : the
El ligh t and
t he
PASSENGER AIR BAG OFF ~ ; ON @ Light.
The Advanced Airbag System as we ll as the side
a ir bags and side c urta in air bags with ejec tion
m it iga tion fea tures ( in cludi ng the e lectro nic con­
tro l uni t, sensors and sys tem wiring) are a ll
monitored co nti nu ously to ma ke sure that they
are funct ioning properly whenever the ignition is
on. Every t ime you turn on the ignition, the air ­
bag system ind icator
light E,lwill come on for a
few seconds (function check).
The system must be inspected when the
indicato r light
E,I:
- does not come on when the ignit ion is switched
on
- does not go out a few seconds after you have
switched on the ign ition, o r
- comes on w hile driving
If an airbag sys tem malf unct ion is de te cted, the
indicator light w ill come on to serve as a co nstant
remi nder to have the system inspected immedi­
ately .
If a mal function occurs that turns the front air­
bag on the passenger side off, the
PASSENGER
AIR BAG
OFF ~. lig ht w ill come o n an d stay on
whenever the ignit ion is on.
A WARNING
An airbag system that is not funct io ning prop­
erly cannot provide supplemental p rotection
in a frontal crash .
- If the airbag indicato r
light¢ page 32
comes whe n the vehicle is be ing used, have
th e sys te m in spect ed immed iate ly by yo ur
au tho riz ed Aud i deale r.
It is possible that
th e air bag will i nflate w hen it i s n ot su p­
p osed to, o r will not i nfla te whe n it shou ld.
Airbag system
PASSENGER AIR BAG OFF '1; ON @ light
Fi g. 241 Sect io n fro m th e headli ner: PASSENGE R AIR BAG
OFF~ ; ON @ lig ht
T he PASSENGER AIR BAG OFF ~; ON@ light is
located in t he
headliner ¢ fig. 241.
The PASSENGER AIR BAG OFF ~; light will come
o n and stay on to tell you w hen t he fro nt Ad­
van ced Air bag o n the p assenge r side has been
tu rned
off by t he e lec tron ic control unit . If the
bulb fo r the
PASSENGER AIR BAG OFF ~; ON@
light b urns o ut, t he a irbag ind icator light El w ill
come on to signal a ma lfunction in the Advanced
Airbag System. Altho ugh the burned-out b ulb
will not change the way the front passenger's
frontal a irbag works , it w ill no longer be possible
to use the
PASSENGER AIR BAG OFF ~; ON@
ligh t to make s ure that the airbag on/off s tatus is
c or rec t fo r th e o ccu pan t on the front passenge r
sea t. Have the airb ag system inspec ted immedi­
ate ly by yo ur au thorized A udi d ealer .
The PASSENGER AIR BAG OFF~; ON@ light
will blink for about S seconds when:
- the capacit ive passenger detection system,
which switc hes the front sea t passe nger's fron ­
tal Advanced Airbag o n and off, detects a
change in the st atus of the front pa sse nger
se at.
As soon as the
PASSENGER AIR BAG OFF ~; ON
@ light s tops blin kin g, a lways make sure that the
air bag st atus (on o r off) as shown by the ligh t is
prope r for the age, size and e lec trica l capacitance
of t he perso n occ up ying the front passenger
seat . Always ma ke sure that the safety be lt fo r
t h e front passenger seat is proper ly fastened .
The PASSENGER AIR BAG OFF~;/ PASSENGER
AIR BAG ON
@ light will show the statu s of the ..,.
283

Airbag system
In addition to their normal safety function, safe­
ty belts help keep the driver or front passenger in
position in a frontal collision so that the airbags
can provide supplemental protection.
The airbag system is not a substitute for your
safety belt. Rather, it is part of the overa ll occu­
pant restraint system in your vehicle. Always re­
member that the airbag system can only help to
protect you if you are wearing your safety belt
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 263, Gener­
al information.
Remember too, airbags will deploy only once and
only in certain k inds of accidents - your safety
belts are always there to offer protection in those
accidents in which airbags are not supposed to
deploy or when they have already deployed, for
examp le when your vehicle str ikes or is struck by
another after the first collision .
This is jus t one of the reasons why an airbag is
not a substitute for the safety belt. The a irbag
system works most effectively when used with
the safety belts. Therefore, always wear your
safety belts correct ly.
It is important to remember that while the sup­
p lemental knee airbag system is designed to re­
duce the likelihood of serious injuries, other inju ­
ries, for example, swe lling, bruising and minor
abrasions and friction burns can also occur when
an airbag inf lates .
The knee airbag system basically consists of:
- T he electronic control module
- T wo inflatab le airbags (airbag and gas genera-
to r), one for the driver and one for the front
pass enger
- The airbag indicator ligh t in the instrument
panel
The knee airbag system will not deploy:
-whe n the ignition is switched off
- in frontal collisions when the deceleration
measured by the control un it is too low
- in side collisions
- in rea r-end collisions
288
-in rollovers
- in the event of a system malfunction (warning/
ind icator light is on)
¢page 32 .
A WARNING
-Safety belts and the airbag system can only
provide protection when occupants are in
the proper seating
position ¢ page 281 .
-If the airbag indicator light ¢ page 32
comes when the veh icle is being used, have
the system inspected immediately by your
author ized Audi dealer. It is possible that
the airbag will inflate when it is not sup­
posed to, or will not inflate when it should.
How knee airbags work
The risk of injury to the leg area con be reduced
by fully inflated knee airbags.
Fig. 243 In flated a irbags protect ing in a fro nta l coll ision
The knee airbag system has been designed so
that the airbags for the dr iver and front passen­
ger dep loy in certain but not all fronta l collisions .
If the front airbags deploy, the knee airbags also
deploy in frontal collisions when the deployment
threshold stored in the control unit is met .
When the system deploys, the airbags fill with a
prope llant 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 281, fig. 240 .
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 ex­
tremities.

Airbag system
the occupant sitting next to it is not seated prop­
erly. The side airbag for the front passenger seat
can be used with properly installed child re­
straints. Please be sure to read the important in­
formation and warnings whenever using a child
restraint in a vehicle: Safety belts
Qpage 263,
Airbag system Qpage 271, Ch ild safety
c::;, page 295.
The side airbag system basically consists of:
-the e lectronic control modu le and externa l side
impact sensors
- the two side airbags located in the sides of the
front backrests
- two rear side airbags*
- the airbag warning light in the inst rument clus -
ter.
The airbag system is monitored electronically to make certa in that it is functioning properly at all
times. Each time you turn on the ign it ion, the air­
bag system indicator light will come on for a few
seconds (self diagnostics).
The side airbag system supplements the safety
be lts and can help to reduce the risk of injury to
the driver's, front and rear* passenger 's upper
torso on the side of the vehicle that is struck in a
side co llision. The a irbag dep loys only in side im­
pacts and on ly when the vehicle acceleration reg­
istered by the control unit is high enough . If this
rate is below the reference value programmed in­
to the control un it, the side airbags will not be
tr iggered, even though the car may be badly
damaged as a result of the collision.
It is not pos­
sib le to define an a irbag tr igger ing range that
will cover every possible angle of impact, since
the circumstances will vary considerably between
one collision and another . Important factors in­
clude, for example, the nature (hard or soft) of
the impacting object, the angle of impact, vehicle
speed, etc.
Q page 291, Important safety in­
structions on the side airbag system.
Aside from their normal safety function, safety be lts work to help keep the driver or front pas­
senger in pos it ion in the event of a s ide collision
so that the side a irbags can provide protection.
The airbag system is
not a subst itute for your
safety belt. Rather, it is part of the overall occu-
290
pant res traint system in your vehicle . Always re­
member that the side airbag system can only
help to protect you if you are wear ing your safety
belt and wearing it properly. This is another rea­
son why you should a lways wear your safety
belts, not just because the law requires you to do
soc::;, page 263, General information .
It is important to remember that while the sup­
plemental side airbag system is designed to re­
duce the likelihood of ser ious injuries, other inju­
ries, for example, swelling, bru is ing, friction
burns and minor abrasions can also be assoc iated
with deployed side airbags. Remember too, side
a irbags w ill dep loy only once and only in certa in
kinds of accidents
-your safety belts are always
there to
offer protection.
Vehicle damage, repair costs or even the lack of
vehicle damage are not necessarily an ind icat ion
of over-sens itive or fa iled airbag activation. In
some collisions, both front and side airbags may
inflate. Remember too, that airbags wi ll deploy
on ly once and only in certain kinds of collisions
-
your safety be lts are always there to offer protec­
tion in those accidents in which airbags 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 side co llisions when the acceleration meas -
ured by the sensor is too low
- in front-end collisions
- in rea r-end collisions
- in rollovers.
In some types of accidents the front airbags, side
curta in airbags and side a irbags may be triggered
together .
&_ WARNING
-Safety belts and the airbag system will only
provide protection when occupants are in
the proper seating position
Q page 291.
- If the airbag indicato r light Q page 32
comes when the vehicle is being used, have
the system inspected immediately by your
authorized Audi dealer. It is possible that