2013 AUDI A6 warning light

154 Airbag system
-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 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 or power inverter) on the
front passenger seat if the device is con­ nected to the 12-volt socket or the ciga­
rette lighter socket. Such devices can in­
fluence the capacitance registered by the
capacitive passenger detection system,
so that incorrect information is provided
to the airbag 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.
_& 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
frontal a irbag is turned on, the
PASSEN ­
GER AIR BAG OFF
light light will go out.
How the Advanced Airbag System
components work together
The front Advanced Airbag System and the
side ai rbags supplement the pro tection of­
fe red by the fro nt three -point safety be lts
with pretensioners and load limiters and the
adj ustab le head restra ints to he lp reduce the
risk of injury in a wide range of accident and
crash situations. Be sure to read the impor­
tant information about safety and heed the
WARNINGS in this chapter.
Deployment of the Advanced Airbag System
and the act ivation of the safety be lt preten­
sioners depend on the decelerat ion measured
by the crash sensors and registered by the
electronic control un it. The amount of infla­
tion of the front airbags can also be adapted
to the front seat position, depending on the d istance between the respe ctive front seat
and the steering whee l or inst rument panel as
registered by sensors in the seats. Crash se­
verity depends on speed and deceleration as
well as the mass and stiffness of the vehicle
or object invo lved in the crash .
On the passenger s ide, regard less of safety
be lt use, the front passenger fronta l airbag
will be t urned off if the electrical capacitance
measured by the capacitive passenger detec­
tion system on the front passenger seat is less
than the amount programmed in the electron­
ic control unit . The front passenger fronta l air­
bag will a lso be turned off if the capac itance
measured by the system for the front passen­
ger seat eq ua ls tha t of an infant o f abo ut one
year of age in one o f the child seats that was
used to cert ify the Advanced Airbag System
under Fede ral Motor Vehicle Safety Standard
208 . The
PASSENGER AIR BAG OF F light
comes on and stays on to tell you when the
front Advanced Airbag System on the passen­ ger s ide has been turned off
c:> page 158 .
Airba g sy stem 155
A WARNING
To reduce the risk of injury w hen an airbag
in flates, always wear safety be lts p roperly.
- If you are unrestra ined, leaning forward,
sitt ing s ideways or out of pos ition in any
way, your risk of injury is much higher.
- You will a lso receive serious injuries and
could even be killed if you are up aga inst
the airbag o r too close to it when it in­
flates -even w it h an Advanced A irbag
¢ page 145 .
More important things to know about
front airbags
F ig. 158 In flated front a irbags
Safety belts are important to help keep front
seat occupants in the proper seated position
so that ai rbags can unfold p roper ly and pro­
vide s upplementa l pro tect ion in a fron tal col­
lis ion .
T he front airbags are des igned to provide ad­
di tional protection fo r the chest and face of
the d river a nd the front seat passenger when :
- safety belts are worn properly,
- the seats have been positioned so that the
occupant is properly seated as far as poss i­
b le from the airbag,
- and the head restraints have been properly adjusted .
Because airbags inflate in the blink of an eye
with great force, things you have on your lap
or have placed on the seat could become dan­
gerous p rojecti les, and be pushed into you if
the a irbag inf lates.
When an airbag deploys, fine dust is re leased.
This is norma l and is not caused by a fire in .,,.

156 Airbag sys te m
the vehicle. This dust is made up most ly of a
powder used to lubricate the airbags as they
deploy . It cou ld irritate sk in .
I t is important to remember that while the
supp lemental airbag system is designed to re­
duce the likelihood of serious injuries, other
in juries, for example swelling, bruising and
minor abrasions, can also happen when air­
bags inflate. Airbags do not protect the arms
or the lower parts of the body . Front airbags
supplement the three-poi nt safety belts only
in some frontal co llisions in which the vehicle
dece lerat ion is high enough to deploy the air­
bags.
Front airbag s will not d eploy:
- if the ignit ion is switched off when a crash
occurs,
- in s ide collisions,
- in rear-end collisions,
- in ro llovers,
- when the crash deceleration measured by
the airbag system is less than the minimum
threshold needed for airbag deployment as
registered by the electronic control unit.
Th e front pa ssenger airbag al so will not
d epl oy :
-when the front passenger seat is not occu ­
pied,
- when the electrical capacitance measured by
the capacitive passenger detection system
for the front passenger seat indicates that
the passenger side frontal airbag must be
switched off by the electronic control unit (the
PASSENGER A IR B AG OFF light
c::> page 158 and how they wo rk comes on
and stays on).
.&_ WARNING
Sitting in the wrong position can inc rease
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 their body too close to the area where
the airbags are
located .
- Occupants who are unbelted, out of posi­
tion or too close to the airbag can be se­
rious ly injured by an airbag as it unfolds
with great force in the blink of an eye
c::> page 147 .
.&_ WARNING
--A child in a rearward-fac ing ch ild seat in -
stalled on the front passenger seat will be
se riously inju red and can be killed if t he
front ai rbag inflates - even w ith an Ad­
vanced A irbag System.
- The inflating airbag will h it the c hild seat
or infant carrier with great force and will
smash the child sea t and chi ld against
the backrest, center armrest, door or
roof.
- Always install rear -fac ing chi ld seats on
the rear seat.
- If you m ust insta ll a rearward fac ing
chi ld seat on the front passenger seat
because of exceptional circumstances
and the PAS SENGER AIR BAG O FF light
does not come on and stay on, immed i­
ately install the rear-facing child seat in a rear seat ing pos ition and have the airbag
system inspected by you r Audi dealer .
.&_ WARNING
= -
Objects between you and the airbag will
i ncrease the r is k of injury in a crash by in­
terfering with the way the a irbag unfolds
or by be ing p ushed in to you as the airbag
i nflates.
- Neve r hold things in yo ur hands or on
your lap when the veh icle is in use.
- Never transpo rt items on o r in the a rea
of the front p assenger sea t. Objects
could move into the a rea of the front air­
bags during braking or other sudden ma ­
neuvers and become dangero us projec­
tiles that can cause ser ious personal in-
jury if the a irbags inf late. ..,.

-Never place or attach accessories or o th ­
er objects (such as cup hol ders, tele­
phone brackets, large, heavy or bulky ob­
jects) on the doors, over or near the area
marked ''AIRBAG" on the steering wheel,
instrument panel, seat backrests or be­
tween those a reas and yourself. These
objects co uld cause injury in a crash, es­
pecially when the airbags inflate .
- Never recline the front passe nger's seat
to transport objec ts. Items can also
move into the area o f the side airbag or
the front airbag during braking or in a
sudden maneuver . Objects near the air­
bags can become project iles and cause
injury, part icularly when the seat is re­
cl ined .
- Never place or transport ob jects 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 person when it in fa ct is not, o r that
the person on the se at is he avier than he
or 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 s eat to s ignal to the A irbag
System that the seat is oc cupied by a
pers on when it is not, or to sign al th at it
is occupied by someone who is heavier
than the pe rson actually s itting 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
worked w ithout the object on the seat. A
irbag
sys tem 157
A WARNING
The fine dust created when airbags deploy
can cause breathing prob lems fo r people
with a history of as thma or other breath­
ing cond itions.
- To reduce the risk of breath ing problems,
those wi th asthma o r other respiratory
conditions s hou ld get fresh air r ight
away by get ting o ut o f the veh icle or
open ing win dows or do ors.
- If you are in a collision in which airbags
deploy, was h your ha nds and fa ce with
mild soap and wate r be fore eating.
- Be ca reful not to get the dust in to your
eyes, o r into any c uts or sc ratches.
- If the resid ue should get into your eyes,
f lus h t hem w ith wa te r.
Monitoring the
Advanced Airbag System
fl~ Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advan ced Airbag System: the airbag
monitoring indi cator light and the
PASSEN­
GER AIR BAG O FF
light.
The Advanced A irbag System ( includ ing the
electron ic co ntro l unit, sensor circu its and sys­
tem wir ing) is monitored con tinuously to
make sure that it is functio ning properly
whenever the ignition is on. Each time you
switch on the ignition, the airbag monitor ing
indicator light
fl will come on for a few sec­
onds (self diagnost ics).
The sy stem must be in spected when the
indicator light
I :
- does not come on when the ignition is
sw itched on,
- does not go out a few seconds after you
have switched on the ignit ion, or
- comes on while driv ing.
If an airbag system malfunc tion is detec ted,
the indicator light wi ll first start f lashing to
catch the driver's attention and then stay on
llo-
•
•

158 Airbag system
con tinuously to se rve as a constant remin der
to have the system inspected immed iately.
I f a malfu nction oc curs that turns the fron t
a ir bag on the passenger side off, the
PASSEN­
GER AIR BAG OFF
li ght will come on and stay
on whenever the ignition is on .
.&_ WARNING
An airbag system that is not functioning
properly cannot provide supplemental pro­
tection in a frontal crash.
- If the airbag indicator light
c::> page 19
comes whe n the vehicle is be ing used,
have t he system inspected immed iate ly
by yo ur autho rized Aud i dea ler . It is pos­
sible that t he airbag will inf late when it
is not s upposed to, or w ill not inflate
w hen it sho uld.
PASSENGER AIR BAG OFF light
Fig . 1 S9 Sect ion from th e in str ument p anel: PASS EN­
GER AIR BAG O FF ligh t
The PASSENGER AIR BAG OFF Light is Locate d
in the center o f the instr ument panel
c::> fig . 159.
The PASSENGER AIR BAG OFF Light will come
on and stay on to tell you when the fron t Ad­
vanced A irbag on the passenger side has been
turned off by the e lectronic control unit . If the
b ul b for the
PASSENGER AIR BAG OFF Light
burns out, the a irbag ind icator light
fl will
come on to signal a malfunction in the Ad·
vanced A irbag System . Although the burned­
out bulb will not change the way the front
passenger's frontal airbag works, it w ill no
L onger be possib le to use the
PASSENGER AIR
BAG OFF
Ligh t to make sure tha t the ai rbag on/off status
is correct fo r the occ upant on
t h e front passenger seat . Have the airbag sys­
tem inspected immediately by your author­
i z ed Audi dea ler.
The PASSENGER AIR BAG OFF light will blink
for about 5 seconds when:
- t he igniti on is sw itched on and
- t he capac itive passenger detection system,
whi ch swit ches the front sea t passenger's
front al Adv anced Air bag on and off, detects
a change in t he status of the fron t passen­
ge r seat.
As soon as the
PASSENGER AIR BAG OFF
lig ht stops b linking, a lw ay s make sure tha t
the a irbag s tatus (on or off) as shown by the
PASSENGER AIR BAG OFF Light is prope r for
t h e age , size and e lectrical capacitance of the
person occupy ing the front passenger seat.
Always make sure that the safe ty belt for the
front passenger sea t is properly fastened .
The PASSENGER AIR BAG OFF light will
show the status of the front seat passenger 's
frontal Ad vanced Ai rbag a few seconds after
the ignition is sw itched 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 i f the e lectrical capacitance
meas ured by the capacitive passenger de­
tect ion system for the front passenger seat
equa ls the combined capacitance of a n in­
fant up to about one yea r of age and one of
the rearwa rd- facing or forward-fac ing ch ild
restrai nts listed i n Federal Motor Vehicle
Safety Standard 208 wi th which the Ad ­
vanced Airbag System in your ve hicle was
certified; For a List ing of the child restraints
that were used to certify your vehicle's com ­
pliance with the U.S . Safety Standard
c::>poge 173.
- will go out i f the front passenger seat is oc­
cupied by an adult as registered by the ca­
pacitive passenger detection system .

160 Airbag sys te m
cushion wit h his or her back up against the
backrest and the backrest is n ot reclined,
- the adu lt 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,
- the safety be lt is being properly worn and
that there is not a lot of slack in the safety
belt webbing,
- there are no aftermarket seat covers or
cushions or other things (such as b lankets)
on the front passenger seat that might
cause the capacitive passenger detection
system to miscalculate electrical capac i­
tance .
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
-If the status of the Advanced A irbag Sys­
tem has changed wh ile the vehicle is
moving, the
PASSENGER AIR BAG OFF
light blinks for about 5 seconds to catch
the drive r's attent ion.
If this happens, al­
ways s top 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 adu lt who is no t
very small is sitting on the front passen ­
ger seat after taking the steps described
above, make sure the adult is properly
seated and restrained at one of the rear
seating pos itions. Have the a irbag sys­
tem inspected by your authorized Audi
dealer before transpo rting anyone on the
front passenger seat.
A WARNING , --
An airbag system that is not funct io ning
prope rly cannot provide supplemental p ro­
tect ion in a fron tal crash.
- If the airbag indicator light ~ page 19
comes when the vehicle is be ing used,
have t he system inspected immedi ate ly
by yo ur authorized Aud i dea ler .
It is pos­
sible that the airbag will inflate when it is not supposed to, or will not
inflate
when it should.
A WARNING
-If the front airbag inflates, a child without
a child restraint, or in a rearward-facing
chi ld safety seat, or in a forward -facing
chi ld restraint that has not been proper ly
i nstalled w ill be seriously injured and can
b e killed.
- Even though you r vehicle is equipped
with an Adva nced A irbag System, make
certain that all children, espe cial ly 12
ye ars and you nger, always ride on the
back seat properly rest rained for their
age and size .
- Always inst all forward o r rear-fa cing
child seats on the rear sea t - even with
an Advanced Airbag System.
- If you must ins tall a rearwa rd -facing
child seat on the front passenger seat because of exceptional circumstances
and the
PASSENGER AIR BAG OFF light
does not appear and stay on, immediate ­
ly install the rear-facing child seat in a
rea r seat ing pos ition and have the airbag
sys tem inspected by you r Audi dealer .
- If, in exceptiona l circumstances, you
m ust install a forward-fac ing c hild re­
straint on the front passenger seat, al­
ways move the seat into its rearmos t po­
sition in the se at's fore and aft adjust­
men t range, as far away from the a irbag
as poss ible . The backrest mus t 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
ever the ignit ion is switched on.
A WARNING
-
- If the PASSENGER AIR BAG OFF light
does not go out when an adult is sitting
on the front passe nger seat after taking
the steps described above, make su re the
adu lt is prope rly seated a nd restra ined at
one o f the rea r seat ing pos itions.
~

-Have the airbag system inspected by
your Audi dealer before transporting
anyone on the front passenger seat.
(D Tips
If the capacitive passenger detection sys­
tem determines that the front passenger
seat is empty, the frontal airbag on the
passenger side will be turned off, and the
PASSENGER AIR BAG OFF light will stay
on .
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.
Airbag system 161
- 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 ...
L..._ _____________ _j ...
•
•

162 Airbag system
experience, informat ion and specia l
too ls 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 modu les and preten­
sioners might be classified as Perchlorate Material - special handling may apply, see
www.dtsc.ca.gov/haza rdouswaste/per­
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts w it h pretens ioners are
s crapped, a ll applicable laws and regula­
tions mus t be observed. Your au thori zed
Audi dea le r is familiar with these requi re­
ments and we recommend that you have
your dea ler perfo rm 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 A irbag Sys­
tem pe rforms in a crash. For example, us ing
tire-r im combinations not app roved by Aud i,
lowering the vehicle, ch anging the stiffness o f
the suspension, including the springs, suspen ­
sion struts, shock absorbers etc. can change
the forces that are measured by the a irbag
sensors and sent to the electronic control
un it. Some suspension changes can, for exam­
p le, increase the force levels measured by the
sensors a nd make the airbag system deploy in
crashes in w hich it would not dep loy if the
changes had not been made . Other kinds of
ch an ges may reduce the force levels meas­
u red by the sensors and prevent the airbag
from deploying when it sho uld .
The senso rs in the safety belt buckle fo r th e
d river a nd front passe nger sea t tell the elec ­
tronic control module if the safety belt is
l atched or not .
If the safety belt is being used,
the front airbag will dep loy at a slightly high­
er rate of vehicle deceleration than if the safe­
ty belt is not being used. Therefore, in a par- t
icu lar collision, it is possible that an airbag
will not dep loy at a seat ing position where the
safety belt is be ing used b ut w ill inflate at the
pos ition where the safety belt is not be ing
used. It is important that nothing interfere
with t he safety be lt buckles so that the sen ­
sors can send the correct info rmation about
safety belt use to the electronic control un it .
_&. WARNING
Changi ng the vehicle's suspension includ ­
i ng use of unapp roved tire-rim combina­
tions can change Advanced Airbag per­
formance and increase the risk of serious pe rsonal injury in a crash .
- Never install suspension components that do not have the same pe rformance
characteristics as the components o rigi­
na lly installed on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
Knee airbags
Description of knee airbags
App lies to vehicles : wi th knee airbags
The knee airbag system can provide supple­
mental protection to properly restrained
front seat occupants .
Fig . 1 60 Driver 's knee a irbag
T he dr iver knee airbag is in the ins trument
pane l underneath the steering wheel
~ fig. 160, the airbag for the passenger is at
about the same height in the instrument pan-
el underneat h the glove compartment. .,.