2012 AUDI A6 steering

146 Airbag system
-Always carefully follow instructions from
child restraint manufacturers when in­
stalling child restraints.
_& WARNING
If, in exceptional circumstances, you must
install a forward or rearward -facing child
restraint on the front passenger's seat:
- Improper installation of child restraints
can reduce their effectiveness or even
prevent them from providing any protec­
tion.
- An improperly installed child restraint
can interfere with the airbag as it de­
ploys and seriously injure or even kill the
child -even with an Advanced Airbag
System.
- Always carefully follow the manufactur­
er's instructions provided with the child
seat or carrier .
- Always make sure that there is nothing
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 occupied by a person when it is not, or to signal that it
is occupied by someone who is heavier
than the person actually sitting on the
seat . The presence of additional 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 different from the way it wou ld
have worked without the object on the
seat.
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occupants .
Fig. 144 Locatio n of drive r ai rbag: in steering wh eel
Fig. 145 Locat io n of fron t passenger' s air bag: in the in·
st rument panel
Your vehicle is equipped with an "Advanced
Airbag System" in compliance with United
States Federal Motor Vehicle Safety Standard
(FMVSS) 208 as applicable at the time your
vehicle was manufactured. The system senses
the position of the front seats and controls
front airbag inflation with a valve , depending
on the distance between the respective seat
and the steering wheel or instrument panel.
The safety belts for the seats have "preten­
sioners" that help to take slack out of the belt
system. The pretensioners are also activated by the electronic control uni t for the airbag
system .
The front safety belts also have load limiters
to help reduce the forces applied to the body in a crash.
The airbag for the driver is in the steering
wheel hub
¢ fig. 144 and the airbag for the
front passenger is in the instrument panel

q fig. 145. The general location of the airbags
is marked "AIRBAG".
There is a lot you need to know about the air­ bags in your vehicle. We urge you to read the
detailed information about airbags, safety
belts and child safety in this and the other
chapters that make up the owner's literature.
Please be sure to heed the WARNINGS -they
are extremely important for your safety and
the safety of your passengers, especially in ­
fants and small children .
A WARNING
Never rely on airbags alone for protection.
- Even when they deploy, airbags provide only supplemental protection .
- Airbag work most effectively when used
with properly worn safety belts .
- Therefore, always wear your safety belts
and make sure that everybody in your ve­
hicle is properly restrained .
- Always hold the steering wheel with both
hands on the outside of the steering
wheel rim at the 9:00 o'clock and 3:00 o'clock positions to help reduce the risk
of personal injury if the driver's airbag in­
flates.
- Never hold the steering wheel at the 12
o'clock position or with your hands any­
where inside the steering wheel or on the
steering wheel hub. Holding the steering
wheel the wrong way increases the risk
of severe injury to the arms, hands, and
head if the driver airbag deploys .
A WARNING
Objects between you and the airbag will
increase the risk of injury in a crash by in­
terfering with the way the airbag unfolds
and/or by being pushed into you as the air­
bag inflates.
- Always make sure nothing is in the front
airbag deployment zone that could be
struck by the airbag when it inflates.
- Objects in the zone of a deploying airbag
can become projectiles when the airbag
Airbag system 147
deploys and cause serious personal in­
Jury.
- Never hold things in your hands or on
your lap when the vehicle is in use.
- Never place accessories or other objects
(such as cup holders, telephone brackets,
note pads, navigation systems, or things
that are large, heavy, or bulky) on the
doors; never attach then to the doors or
the windshield; never place them over or
near or attach them to the area marked
,,AIRBAG" on the steering wheel, instru­
ment panel or the seat backrests; never
place them between these areas and you
or any other person in the vehicle.
- Never attach objects to the windshield
above the passenger front airbag, such
as accessory GPS navigation units or mu­
sic players. Such objects could cause seri­
ous injury in a collision, especially when
the airbags inflate.
- Never recline the front passenger seat to
transport objects. Items can also move
into the deployment area of the side air­
bags or the front airbag during breaking
or in a sudden maneuver. Objects near
the airbags can fly dangerously through
the passenger compartment and cause injury, particularly when the seat is re­
clined and the airbags inflate.
WARNING
A person on the front passenger seat, es­
pecially infants and small children, will re­
ceive serious injuries and can even be kil­
led by being too close to the airbag when
it inflates.
- Although the Advanced Airbag System in
your vehicle is designed to turn off the
front passenger airbag if an infant or a
small child is on the front passenger
seat, nobody can absolutely guarantee
that deployment under these special conditions is impossible in all conceiva­
ble situations that may happen during
the useful life of your vehicle . .,.
•
•

148 Airbag system
-The Advanced Airbag System can deploy
in accordance with the .,low risk" option
for 3- and 6-year-old children under the U.S . Federal Standard if a child with elec­
trical capacitance greater than the com­ bined capacitance of a typical one-year
old infant restrained in one of the for­
ward facing or rearward-facing child
seats with which your vehicle was certi­
fied is on the front passenger seat and
the other conditions for airbag deploy­ ment are met.
- Accident statistics have shown that chil­
dren are generally safer in the rear seat
area than in the front seating position.
- For their own safety, all children, espe­
cially 12 years and younger, should al­
ways ride in the back properly restrained
for their age and size.
Advanced front airbag system
Your vehicle is equipped with a front Advanced
Airbag System in compliance with United
States Federal Motor Vehicle Safety Standard
208 as applicable at the time your vehicle was manufactured.
The front Advanced Airbag System supple ­
ments the safety belts to provide additional
protection for the driver's and front passeng­
er's heads and upper bodies in frontal crashes .
The airbags inflate only in frontal impacts
when the vehicle deceleration is high enough.
The front Advanced Airbag System for the
front seat occupants is not a substitute for
your safety belts. Rather, it is part of the over­ all occupant restraint system in your vehicle.
Always remember that the airbag system can
only help to protect you, if you are sitting up­
right, wearing your safety belt and wearing it
properly . This is why you and your passengers
must always be properly restrained, not just
because the law requires you to be.
The Advanced Airbag System in your vehicle has been certified to meet the "low risk" re­
quirements for 3 and 6 year-old children on
the passenger side and very small adults on the driver side. The low risk deployment crite­
ria are intended to help reduce the risk of in­
jury through interaction with the front airbag
that can occur, for example, by being too close to the steering wheel and instrument
panel when the airbag inflates.
In addition, the system has been certified to
comply with the "suppression" requirements
of the Safety Standard, to turn off the front
airbag for infants 12 months old and younger
who are restrained on the front passenger
seat in child restraints that are listed in the
Standard
c::> page 170, Child restraints and
Advanced front airbag system.
"Suppression" requires the front airbag on the
passenger side to be turned off if:
- a child up to about one year of age is re­
strained on the front passenger seat in one
of the rear-facing or forward-facing infant
restraints listed in Federal Motor Vehicle
Safety Standard 208 with which the Ad­
vanced Airbag System in your vehicle was
certified. For a listing of the child restraints
that were used to certify your vehicle's com­
pliance with the US Safety Standard
i=>page 170,
-When a person is detected on the front pas­
senger seat that has an electrical capaci­
tance that is more than the total electrical
capacitance of a child that is about 1 year
old restrained in one of the rear-facing or
forward -facing infant restraints (listed in
Federal Motor Vehicle Safety Standard 208
with which the Advanced Airbag System in
your vehicle was certified) , the front airbag
on the passenger side may or may not de­
ploy.
The
PASSENGER AIR BAG OFF light comes on
when the electronic control unit detects a to­
tal electrical capacitance on the front passen­ ger seat that requires the front airbag to be
turned off. If the
PASSENGER AIR BAG OFF
light does not come on, the front airbag on
the passenger side has not been turned off by
the control unit and can deploy if the control unit senses an impact that meets the condi -
tions stored in its memory. ..,_

150 Airbag sys te m
backrest must be adjusted to an uprigh t
posit ion.
- Always make sure that there is nothing
on the front passenger seat that will
cause the capacitive passenger detection
system in the seat to s ignal to the A irbag
System that the seat is occupied by a
person when it is not, or to signal that it
is occupied by someone who is heavier
than the pe rson actually s itting on t he
seat. The presence of additiona l objects
cou ld cause the passenger front airbag
to be t urned on w hen it sho uld be off, or
cou ld cause the airbag to work in a way
that is different from the way it wou ld
have worked without the object on the
seat.
- Make sure that the
PASSENGER AIR BA G
OFF
light comes on and stays on all the
t ime w henever the ignition is switched
on.
Advanced Airbag System components
The front passenger seat in you r veh icle has a
l ot of very important pa rts of the Advanced
A irbag System in it . These parts include the
capacitive passenge r de tect ion sys tem, wir­
ing, brac kets, and more . The cont ro l uni t
monitors the system on the front passenger
seat when the ignition is switc hed on and
turns the airbag indicato r light on when a
malfunction in the one of the system compo­
nents is detected
c::;, page 155 . Because the
fro nt passenge r seat contains important pa rts
of the Advanced Airbag System , you must
take ca re to p revent it from being damaged.
Da mage to the seat may preven t the Ad­
vanced A irb ag System for the fron t passenger
seat from doing i ts job in a c rash .
The front Advanced Airbag System
consists of the following:
-Crash sensors in the front o f the veh icle tha t
measure veh icle acceleration/dece le ration
to provide information to the Advanced Air­ bag System about the severity of the crash. -
An elect ronic contro l unit, with integrated
crash sensors for front and sid e impacts .
T he control un it "decides" whether to fire
the front a irbags based on the inform at ion
received from the crash sensors. The control
unit also "decides" whether the safety belt prete nsioners shou ld be act ivated .
- An Advanced A irbag w ith gas generator and
contro l valve for the driver inside the steer­
ing wheel hub .
- An Advanced A irbag w ith gas generator and
contro l valve inside the inst rument panel for
the front passenger .
- A capacit ive passenger detection system u n­
de rneath the front passenger seat cover .
This system measures the elec trical capac i­
t ance of the perso n in t he seat. The informa ­
t ion regis tered is se nt cont inuo usly to the
electronic con trol un it to regu late deploy­
ment of the front Advanced Airbag on the
passenger side.
- An airbag monitoring system and indicator
light in the instr ument cluster
c::;, page 154.
- A senso r in each front seat regis ters the dis­
tance between the respective seat and the
steering whee l or instrument panel. The in ­
formation registered is sent cont inuo usly to
the electron ic contro l uni t to regulate de­
ployment of the front Adv a need A irbags .
- The
PASSENGER AIR BAG OFF light comes
on and stays on in the center of the instr u­
ment panel
c::;, page 155, fig . 147 and tells
you when the front Advanced Airbag on the
passenger side has been t urned off.
- A sensor in the safety belt latch for the driv­
er and fo r the front seat passenger that
senses w hether t hat safety belt is latched or
no t and transmi ts this information to t he
elec tronic con trol un it.
A WARNING
D amage to the fron t passenger seat can
prevent the front airbag from working
p roperly.
- Imp roper repai r or disassembly of the
front passenge r and dr iver seat will pre­
vent the Advanced Airbag System from
functioning properly .
-

152 Airbag system
same effect . If the front passenger
frontal a irbag is turned on, the
PA SSEN ·
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 a irbags supplement the protect ion of­
fered by the front three-point safety be lts
with pretensioners and load limiters and the
ad justab le head restraints to he lp red uce 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 activation of the safety be lt preten­
sioners depend on the dece lerat 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, depend ing on the
d istance between the respective front seat
and the steering wheel or instrument 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 fro nta l airbag
will be turned 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·
i c 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 sea t equa ls tha t of an infant of abo ut one
yea r of age in one of the child sea ts tha t was
used to certify the Advanced Airbag System
u nder Federal Motor Vehicle Safety Standard
208 . T he
PASSENGER AIR BA G OFF light
comes on and stays on to tell you when the
front Advanced A irbag System on the passen­
ger s ide has been turned off
c> page 155 .
A WARNING
-To reduce the risk of injury w hen an a irbag
in flates, always wear safety be lts properly.
- 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 h igher .
- You will a lso receive se rious injuries and
could even be killed if you a re up aga inst
the airbag o r too close to it when it in­
flates - even w ith an Advanced A irb ag
<=> page 142 .
More important things to know about
front airbags
Fig . 14 6 Inflated fro nt a irbags
Safety belts a re important to he lp keep front
seat occupants in the proper seated position
so that a irbags can unfold properly and pro­
v ide s upplementa l pro te cti on in a fron tal col­
li sion .
T he front airbags are des igned to provide ad­
ditional p rotection fo r the chest and face of
the driver a nd the front seat passenger w hen:
- safety belts are worn properly,
- the seats have bee n 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
adj usted .
Because airbags inflate in the blink of an eye
with great force, th ings you have on your lap
or have placed on the seat cou ld become dan ­
gerous projecti les, and be p ushed into you if
the a irbag inflates .
When an airbag deploys, fine dust is re leased.
This is norma l and is not caused by a f ire in ..,.

158 Airb ag sys te m
adult is properly seated and restrained at
one of the rear seating positions.
- 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
PA SSEN GER AIR B AG OFF light will stay
on .
Repair, care and disposal of the airbags
Parts of the a irbag system are installed at
many different places on your Audi. Installing,
removing, servicing or repairing a part in an
a rea of the vehicle can damage a part of an
airbag system and prevent that system from
working properly in a co llision.
There are some important things you have to know to make sure that the effect iveness of
the system will not be impaired and that dis­
carded components do not cause injury or po l­
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 deploy ing when needed or deploying
an airbag unexpectedly:
- Never cover, obstruct, or change the steering wheel ho rn pad or airbag cover
or the instrument pane l 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
pane l, use only a soft, dry cloth or one
moistened w ith plain water. Solvents or
cleaners cou ld 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 electr ica l sys­
tem (including the installation of audio
equ ipment, cellu lar telephones and CB
radios, etc .) must be performed by a
qualified technic ian who has the training
and specia l equipment necessary.
- For any work on the airbag system, we strongly recommend that yo u see your
author ized Audi dealer or qualif ied work­
shop.
- Never modify the front b umper or parts
of the vehicle body.
- Always make sure that the s ide airbag
can inflate without inte rfe rence:
- Never install seat covers or rep lace­
ment upholstery over the front seat­
backs that have not been specifically
approved by Audi.
- Never use additional seat c ushions that
cover the areas where the side airbags
inflate.
- Damage to the orig inal seat covers or
to the seam in the area of the side a ir­
bag module must a lways be repaired
immediately by an author ized Audi
dealer .
- The airbag system can deploy on ly once.
After an a irbag has been deployed, it
must be replaced w ith new replacement
pa rts des igned and app roved especially
for your Aud i model version. Replace­
men t of comple te airbag systems or air­
bag components must be performed by
qua lified wor kshops only . Make sure that
any airbag service action is entered in
your Aud i Warranty
& Maintenance book­
let under
AIRBAG REPLACEMENT RE­
CORD.
- For safety reasons in severe accidents,
the alternator and starter a re separated
from the veh icle battery with a pyrotech-
n ic circuit inte rrupter . ..,.

-Work on the pyrotechnic circu it inter­
rupter must on ly be performed by a
qualified technic ians who have the ex­
perience, information and special tools necessary to perform the work safely.
- If the veh icle or the circuit interrupter
is sc rapped, all applicable safety pre­
cautions must be followed.
@) For the sake of the environment
Undep loyed airbag modules and preten­
sioners might be classified as Perchlorate Mate rial -special handling may apply, see
www.dtsc.ca .gov/haza rdo uswaste/per­
chlorate. When the vehicle or parts of the
restrai nt system inclu ding airbag modules
a nd safety bel ts w ith pretens ioners are
scrapped, a ll applicable laws and regula ­
tions must be observed. Your authorized
Aud i dea ler is familiar w ith these require­
ments and we recommend that you have
your dea ler perform this serv ice for you.
Other things that can affect Advanced
Airbag performance
C hanging the vehicle's suspension system can
ch ange the way that the Advanced A irbag Sys­
tem pe rforms in a crash. For example, us ing
tire-rim combinations not app rove d by Audi,
lowe ring the vehicle, changing the stiffness of
the suspension, incl uding the springs, suspen­
sion struts, shock absorbers etc. can change
the forces that are measured by the a irbag
se nsors and sent to the electron ic control
un it . Some suspension changes can, for exam­
p le, increase the force levels measured by the
se nsors and make the airbag system deploy in
crashes i n w hich it would not dep loy if the
ch an ges had not been made. Ot her kinds of
cha nges may reduce the force levels meas ­
ured by the sensors and prevent the airbag
from deploying when it shou ld.
The senso rs in the safety belt buckle fo r th e
d river and front passenger seat 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 deploy at a slightly high-
A irba g sy stem 159
er rate of vehicle deceleration than i f the safe­
ty belt is not being used. Therefore, in a par ­
ticu lar collis ion, it is possible t hat an airbag
will not deploy at a seating pos ition where the
safety belt is be ing used but w ill inflate at the
position w here the safety belt is not be ing
used. It is impo rtant that noth ing interfere
with the safety be lt b uckles so that the sen­
sors can send the cor rec t info rmation abou t
sa fe ty belt use to the elec tronic con trol un it.
_&. WARNING ~-
Changing the vehicle's suspension includ-
ing use of unapprove d tire -rim combina ­
tions can change Advanced Airbag per­
formance and increase the risk o f serious
personal injury in a crash.
- Never install s uspension components
that do not have the same performance
characteristics as the components origi­
na lly installed on your vehicle .
- Never use tire-rim combinations that
have not been approved by Audi.
Knee airbags
Description of knee airbags
Appl ies to vehicles: wi th knee airbags
The knee airbag system can provide supple­
mental prot ection to properly r estrain ed
front seat occupants.
Fi g. 14 8 Drive r's airbag
T he driver knee airbag is i n the instrument
panel underneath the steering wheel
i=> fig . 148, the airbag for the passenger is at
about the same height in the instrument pan-
el underneath the glove compartment . ..,_

How knee airbags work
Applies to vehicles: with knee airb ags
The risk of injury to the leg area can be re­
duced by fully inflated knee airbags.
Fig. 149 Inflated airbags protecting in a frontal coll i­
sio n
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 deploy, the knee airbags
also deploy in frontal collisions when the de­ ployment threshold stored in the control unit
is met .
When the system deploys, the airbags fill
with a propellant 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 152,
fig. 146.
Although they are not a soft pillow, they can
"cush ion" the impact and in this way they can
help to reduce the risk of injury to the lower
extremities.
All of this takes place in the blink of an eye, so
fast that many people don't even realize that
the airbags have deployed . The airbags also
inflate with a great deal of force and it is im­
portant for occupant safety that nothing
should be in their way when they deploy.
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.
Airbag system 161
Important safety instructions on the
knee airbag system
Applies to vehicles: wit h knee airbags
Airbags are only supplemental 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.
_&. WARNING .. -
An inflating knee airbag can cause serious injury. Wearing safety belts incorrectly and
imprope r 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 a re 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.
- at least 4 inches (10 cm) between the
knees and the lower part of the instru­
ment 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
by being pushed into you as the airbag
deploys.
- Never let anybody, especially children
or animals ride in the footwell in front