2015 AUDI A6 warning light

154 Airbag system
-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 wires from it.
- Never carry sharp objects in your pockets
or put them on the seat. The capacitive
passenger detection mat in the front
passenger seat will not function properly
if it is punctured .
- Never carry things on your lap or carry objects on the front passenger seat.
Such objects can influence the capaci­
tance registered by the capacitive pas ­
senger detection system, so that incor­
rect information is provided to the airbag
control unit.
- Never store items under the front pas­
senger seat. Parts of the Advanced Air­
bag System under the passenger seat
could be damaged, preventing them and
the airbag system from working proper­
ly.
- Never place seat covers or replacement upholstery that have not been specifical­
ly approved by Audi on the front seats.
- Seat covers can prevent the Advanced Airbag System from recognizing child re­
straints or occupants on the front pas­
senger seat and prevent the side airbag
in the seat backrest from deploying prop­
erly.
- If a seat heater has been retrofitted or
otherwise added to the front passenger
seat, never install any child restraint sys­
tem on this seat .
- Never use cushions, pillows, blankets, or similar items on the front passenger
seat. The additional layers prevent the
capacitive passenger detection system
from accurately measuring the capaci­
tance of the child safety seat and/or the
person on the seat and thus keep the Ad­
vanced Airbag System from working properly.
- 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 light­
er socket . Such devices can influence the
capacitance registered by the capacitive passenger detection system, so that in­
correct information is provided to the air­
bag control unit.
- If you must use a child restraint on the
front passenger seat and the child re­
straint manufacturer's instructions re­
quire the use of a towel, foam cushion or
something else to properly position the
child restraint, make certain that the
PASSENGER AIR BAG OFF light comes
on and stays on whenever the child re­
straint is installed on the front passen­
ger seat.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, immedi­
ately install child restraint in a rear seat­
ing position and have the airbag system inspected by your Audi dealer.
,8. WARNING
If the front passenger seat gets wet, dry it
immediately.
- If liquid soaks into the front passenger
seat, this can keep the airbag system
from working properly and may, for in­
stance, deactivate the passenger frontal
airbag. If this happens, the
PASSENGER
AIR BAG OFF
light will come on and stay
on together with the airbag indicator light
fl in the instrument cluster .
- If liquid is pooled on the seat, but has
not soaked in, this may also keep the air­
bag system from working properly and
cause the passenger frontal airbag to be
enabled (turned on), even though there is a properly installed child restraint sys­
tem on the seat . Wet towels or other wet
things on the seat cushion can have the
same effect. If the front passenger fron­
tal airbag is turned on, the
PASSENGER
AIR BAG OFF
light light will go out.

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How the Advanced Airbag System
components work together
The front Advanced Airbag System and the
side airbags supplement the protection of­
fered by the front three -point safety be lts
with pretensioners and load limiters and the
adjustable head restra ints* to help reduce the
risk of injury in a wide range of acc ident and
crash situat ions. Be sure to read the impor­
tant information about safety and heed the
WARNINGS i n this chap ter.
Dep loyment of the Advanced Airbag System
and the activat ion of the safety be lt pre ten­
sioners depend on the dece lerat ion meas ured
by the c rash senso rs and registered by the
e lectronic control u nit. Cr ash severity depends
on speed and dece leration as well as the mass
and stiffness of the vehicle or object involved
in the crash.
On the passenge r side, reg ard less of safety
be lt use, the fron t passenger fronta l airbag
will be t urned off i f the electrical capacitance
measured by the capac itive passenger detec­
tion system on the front passenger seat is less
than the amount programmed in the e lectron­
ic control unit. The front passenger frontal air­
bag will also be turned off if the capac itance
measured by the system for the front passen­
ge r seat equa ls that of an infant of about one
year of age in one of the child seats that was
used to cert ify the Advanced Airbag Sys tem
u nder Fede ral Motor Vehicle Safety Standard
208 . The
PASSENGER AIR BAG OFF light
comes on and stays on to tell you when t he
front Advanced Airbag System on the passen­
ger s ide has been turned off¢
page 158.
A WARNING
To reduce the risk of injury when an airbag
inf lates, a lways wear safety belts properly.
- If you are unrestrained, lean ing forward,
sitting sideways or out of position in any
way, yo ur r isk of inj ury is much hig he r.
- You w ill also receive serious injuries and
cou ld eve n be killed if you are up against
the a irbag or too close to it when it in-
A irba g sy stem 155
flates -even w it h an Advanced A irbag
¢page 145.
More important things to know about
front airbags
Fi g. 1 59 In flated front airbags
Safety be lts are important to he lp keep front
seat occupants in the proper seated position
so that airbags can unfold properly and pro­
vide supplementa l protect ion in a frontal col­
li s ion.
The front airbags are des igned to provide ad­
ditional protection for the chest and face of
the driver and the front seat passenger when:
- safety belts are worn proper ly,
- t he seats have been positioned so that the
occupant is properly seated as far as poss i­
ble from the airbag,
- and for ad justab le head restra ints: the head
restraints have been properly adj usted .
Bec ause airbags infl ate in the bli nk of an eye
wi th great force, th ings you have on your lap
o r have p laced on the seat co uld become dan ­
gerous projectiles, and be p ushed into you if
the a irbag inf lates.
When an airbag deploys, fine dust is re le ased.
This is norma l and is not caused by a fi re in
the ve hicle . 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 remembe r that wh ile the
supplementa l airbag system is designed to re­
duce the like lihood of serious injur ies, other
i njur ies, for example swelling, bruis ing and
minor abrasions, can also happen when air-
bags inflate. A irbags do not protect the arms .,_

156 Airbag sys te m
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 air­
bags.
F ront airbag s will not d eplo y:
-if the ignition is switched off when a crash
occurs,
- in side collisions,
- in rear-end collisions,
- in ro llovers,
- when the crash deceleration measured by
the a irbag system is less than the minimum
t h reshold needed for airbag deployment as
registered by the electron ic control uni t.
The f ront pas senger airbag also will not
deploy:
- when the front passenger seat is not occu­
pied,
- when the electrical capac itance measured by
the capacitive passenger detect io n sys tem
for the front passenger seat indicates that
the passenger side fronta l airbag must be
switched off by the e lectronic control unit
(the
PA SSENGER AIR BA G OFF light
c> page 158 and how they work comes on
and stays on).
A WARNING
Sitting in the wrong position can increase
the risk of serious injury in crashes.
- To reduce the r isk of injury when the air­
bags inflate, the driver and passengers
must always sit in an upright position,
must not lean against or place any part
of the ir body too close to the area where
the a irbags are located.
- Occupants who a re unbelted, out of posi­
t ion or too close to the airbag can be se­
riously injured by an airbag as it un folds
with great force in the blin k of an eye
i=>page
147.
A WARNING
A child in a rearward-facing child seat in­
stalled on the front passenger seat will be
-
seriously injured and can be killed if the
front airbag inflates -even w ith an Ad­
vanced Airbag System.
- The inflating airbag will h it the ch ild seat
or infant carrier with great force and will
smash the child seat and child against
the backrest, center armrest, door or
roof.
- Always install rear-fac ing ch ild seats on
the rear seat .
- If you must install a rearward fac ing
child seat on the front passenger seat because of exceptional circumstances
and the
PASSENGER AIR BAG OFF light
does not come on and stay on, immed i­
ately insta ll the rear-facing child seat in a
rea r seat ing pos ition and have the airbag
system inspected by yo ur Audi dealer.
A WARNING
c'-----
Objects between you and the airbag will
increase the r isk of injury in a crash by in­
terfering with the way the airbag unfolds
or by be ing p ushed into you as the airbag
inflates.
- Never hold things in yo ur hands or on
your lap when the veh icle is in use.
-
- Never transport items on or in the area
of the front passenger seat. Objects
could move into the area of the front air­ bags during braking or other sudden ma­
neuvers and become dangero us projec­
tiles that can cause ser ious perso nal in­
jury if the a irbags inflate.
- Never p lace or attach accesso ries o r oth­
er objects (such as cup holders, te le­
p hone bra ckets, large, heavy or bulky ob­
jects) on the doors, over o r near the area
marked "AIRBAG" on the steering whee l,
instr ument panel, seat bac krests o r be­
tween those areas and yourself. These
objects could ca use in jury in a crash, es­
pecially when the airbags inflate.
- Never recline the front passenger 's seat
to transport objects. Items can a lso
move into the a rea of the s ide airbag or
the front airbag during braking or in a

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sudden maneuver. Objects near the
airbags can become projectiles and cause
injury, particularly when the seat is re­
cl ined .
- Never place or transport objects on the
front passenger seat. Objects on the
front passenger seat could cause the ca­
pacitive senso r in the seat to s ignal to
airbag system that the seat is occupied
by a pe rson whe n it in fact is not, o r that
the person on the sea t is heavier than he
o r she actually is. The change in electric
capacitance beca use of such objects can
cause the passenger front airbag to be
turned on when it sho uld be off, or can
cause the airbag to work in a way that is
different from the way it wou ld have
worked w ithout objects on the seat.
- Always make sure that there is nothing
on the front passenger seat that will
cause the capacitive passenge r detection
system in the seat to s ignal to the A irbag
System that t he seat is occupied by a
pers on when it is not, or to sign al t hat it
is occupied by someone who is heavier
than the pe rson actually sitting on the
seat . The presence of an object co uld
cause the passenger front a irbag to be
turned on when it sho uld be off, or co uld
cause the airbag to work in a way that is
different from the way it wou ld have
wor ked w ithout the object on the sea t.
A WARNING
The fine dust created when a irbags dep loy
c an cause b reathing problems for peop le
w ith a his to ry o f asthma o r other brea th­
ing condi tio ns .
- T o reduce the r is k of b rea thing prob lems,
those w it h a sthma or o ther resp iratory
c ondit ions should ge t fresh a ir right
away by getting out of the vehicle o r
opening windows or doo rs .
- If you are in a coll is ion in which a irbags
deploy, wash yo ur hands and face with
mild soap and water befo re eating.
A irbag system 157
-Be ca reful not to get the d ust into your
eyes, or into any c uts o r scratches.
- If the resi due s hou ld get into your eyes,
f lush them w ith water.
Monitoring the
Advanced Airbag
System
tli Airbag monitoring indicator light
Two seporate indicators monitor the function
of the Advanced Airbag System: the airbag
monitoring indicator light and the
PASSEN ­
GER AIR BAG OFF
light.
The Advanced Ai rbag System as well as t he
s ide airbags and side curta in a irbags w ith
eject ion mit igat ion features (includi ng the
electron ic co ntrol unit, se nsors and system
wiring) are all mon itored continuously to
make su re that they are function ing p roper ly
whe never the ignition is on . E ve ry time you
tu rn o n the ignition, the airbag sys tem indica­
tor lig ht
II will c ome on fo r a few seconds
(funct ion check) .
The system must be inspected when the
indicator light
II:
- does not come on when the igni tion is
switched on,
- does not go out a few seconds after you
have switched on the ignit ion, or
- come s on while driv ing.
If an airbag system malfunction is detected,
the indicator lig ht w ill first sta rt flash ing to
catch the d rive r's atte ntio n and the n stay on
continuously to serve as a constant rem inder
t o have the sys tem inspected immedi ate ly.
If a ma lfu nction occurs that turns the front
airbag on the passenger s ide off, the
PASSEN­
GER AIR BAG OFF
light will come on and st ay
o n wheneve r the igni tion is on.
•
•

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, ..,_

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.

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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.
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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. ..,.

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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. .,,. •
•