2012 AUDI A7 belt

backrest must be adjusted to an upright
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 signa l that it
is occupied by som eone who is heavier
than t he pe rson actually s itting on t he
sea t. T he presence of addition al obje cts
cou ld cause the passenger front airbag
to be t urned on when it sho uld be off, or
cou ld cause t he 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 BAG
OFF
light comes on and stays on all the
t ime w henever the ignition is switc hed
on.
Advanced Airbag System components
The front passenger seat in your vehicle has a
l ot of very important parts of the Advanced
A irbag System in it. These parts incl ude t he
c a pac itive passenger de te ct ion sys tem, wir­
ing, b racke ts, and more . The cont ro l uni t
monitors the system o n the front passenger
seat when the ign ition is switched on and
turns the airbag indicator light on w hen a
malfunct ion in the one of the system compo­
nents is detected ¢
page 150. Because the
fro nt passenge r seat contains important parts
of the Advanced Airbag System, you must
take care to p revent it from bei ng damaged.
D amage to the seat may preven t the Ad ­
vanced A irbag System for the front passenger
seat from doing its job in a crash .
The front Advanced Airbag System
consists of the following:
-Crash sensors in the front of the veh icle tha t
measure ve hicle acceleration/dece le ration
to provide information to the Advanced Air­ bag System about the severity of the crash.
A irbag system 145
- An elect ron ic contro l unit, with integrated
crash sensors fo r front and side impacts .
T he control un it "decides" whether to f ire
the front a irbag s based on the informat ion
received from the crash sensors. The control
unit also "decides" whether the safety belt
prete nsione rs should be act iva ted .
- An Advanced A irbag w it h gas generator and
cont ro l valve for the driver ins ide the steer ­
ing wheel h ub.
- An Advanced A irbag w ith gas generator and
cont ro l valve inside the instrument pa nel for
the front passenger .
- A capacit ive passenger detection system un ­
de rneath the front passenger seat cover .
This system measu res the ele ct rical capac i­
t ance of the perso n in the seat. The informa ­
t ion regis tered is se nt cont inuo usly to the
elec tronic con trol un it to regu late dep loy­
ment of the front Advanced A irbag on the
passenger side.
-An airbag monitoring system an d ind icator
light in the instr ument cluster ¢
page 149.
-A senso r in each front seat registers the dis ­
tance between the respective seat a nd the
steering whee l or instrument panel. The in­
formation registered is sent cont inuo usly to
the electron ic contro l unit to regulate de­
ployment of the front Adva need A irbags .
- The
PASSENGER AIR BAG OFF li ght comes
on and stays on in the center of the instr u­
ment panel ¢
page 150, fig. 144 and tells
you whe n the front Advanced Airbag on the
passenger side has been tu rned off.
- A senso r in t he safety belt latch fo r the d riv ­
er and fo r the front seat passenger that
senses whethe r th at safety belt is latched or
no t and tra nsmi ts this informa tion to the
elec tro nic con trol un it.
A WARNING
D amage to the fron t passenger se at can
p revent the front air bag from work ing
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.
-
•
•

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 airbags 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
tan t information about safety and heed the
WARNINGS in this chapter .
Deployment of the Advanced A irbag 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 passenge r 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 . T he
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 150 .
Airba g sy stem 14 7
A WARNING
To reduce the risk of injury w hen an airbag
in flates, always wear safety be lts p ro perly.
- If you are unrestra ined, leaning forward,
sitt ing s ideways or out of pos ition in any
way, your ris k of injury is m uch 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 137 .
More important things to know about
front airbags
Fi g. 14 3 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
v ide s upplementa l pro tect ion in a fron tal col­
lis ion .
T he front airbags a re des igned to provide ad­
di tional protection fo r the chest and fa ce 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 bli nk of an eye
wi th great force, things you have on your lap
or have placed on the seat cou ld become dan ­
gerous p rojecti les, and be pushed in to you if
t h e 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 .,,.

148 Airbag sys tem
the vehicle. This dust is made up most ly o f a
powder used to lubricate the airbags as they
deploy . It cou ld irritate sk in .
I t is important to remember that whi le the
supp lemental airbag system is designed to re ­
duce the likelihood of serious injuries, other
in ju ries, 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 le ra ti on is high enough to deploy the air­
bags.
Front airbags will not deploy:
- if the ignit io n 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 e lectronic 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 electron ic control unit
(the
PASSENGER AIR BAG OFF light
<> page 150 and how they wo rk comes on
and stays on).
.&_ WARNING
Sitting in the wrong posi tion can inc rease
the risk of serious injury in crashes .
- To reduce the r is k of i njury 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 whe
re
the airbags a re located .
- Occupants who are unbelted, out of posi­
tion or too close to the airbag can be se­
rio us ly injured by an airbag as it unfolds
with great force in the blink of an eye
<> page 139 .
.&_ WARNING
--A child in a rearward-fac ing ch ild seat in -
stalled on the front passenger seat wi ll be
se riously in ju 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 infan t ca rrier with grea t for ce and will
smash the child sea t and chi ld against
the backrest, center armrest, door or
roof.
- Always install rear -fac ing ch ild seats on
the rear seat.
- If you m ust ins ta ll a rearw ard fac ing
chi ld 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
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 nc rease the r is k of injury in a crash by in­
terfer ing 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 t he a rea
of the front p assenger sea t. Objects
could move into the a rea of the front a ir­
bags du ring 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. ..,.

150 Airbag system
continuously to serve as a constant reminder
to have the system inspected immediately.
If a malfunction occurs that turns the front
airbag on the passenger side off, the
PASSEN­
GER AIR BAG OFF
light 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 comes on, it
means that there may be somet hing
wrong with the Advanced Airbag System.
It is possible that the airbag will inflate
when it is not supposed to, or will not in­
flate when it should.
- Have the airbag system inspected imme­
diately by your Audi dealer.
PASSENGER AIR BAG OFF light
Fig. 144 Sect ion from the instrument pa nel: PASS EN­
GER AIR BAG OFF light
The PASSENGER AIR BAG OFF Light is Located
in the cen ter of the instr ument panel
~fig. 144.
The PASSENGER AIR BAG OFF Light will come
on and stay on to tell you when the front Ad­
vanced A irbag on the passenger side has been
turned off by the electronic control unit. If the
bulb for the
PASSENGER AIR BAG OFF Light
burns out, the airbag indicator 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
longer be possible to use the
PASSENGER AIR BAG OFF
Light to make su
re that the airbag
on/off status is correct for the occ upant on
the front passenger seat . Have the airbag sys ­
tem inspected immediately by your author­
ized Audi dealer.
The PASSENGER AIR BAG OFF Light will blink
for about
5 seconds when:
- the ignition is sw itched on and
- t he capacitive passenger detection system,
whi ch switches the front seat 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
light stops blinking, always make sure that
t h e airbag status (on or off) as shown by the
PASSENGER AIR BAG OFF 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 properly fastened .
The PASSENGER AIR BAG OFF light will
show the status of the front seat passenger's
frontal Advanced Airbag a few seconds after
the ignition is 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 electrical capacitance
measured by the capacitive passenger de­
tection system for the front passenger seat
equals the combined capacitance of an in­
fant up to about one year of age and one of
the rearward-facing o r forward-facing child
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 w ith the U.S. Safety Standard
~page 165.
-will go out if the front passenger seat is oc­
cupied by an adult as registered by the ca­
pacitive passenge r detect ion system.
...

-The PA SS ENGER AIR BAG OFF light must
come on and stay on if the ignition is on
and . ..
- a car bed has been insta lled on the front
passenger seat, or
- a rearward -facing chi ld restraint has been
installed on the front passenger seat, or
- a fo rward-facing child restraint has been in­
stalled on the front passenger seat,
- and if the e lectr ica l capaci tance registered
on the front passenger seat is equal to or
l ess than the combined capacitance of a typ­
ical 1 year-old infant and one of the rear­
ward-facing or forward -facing child re­
stra ints listed in Federal Motor Veh icle Safe­
ty Standard 208 w ith which the Advanced
Airbag System in your vehicle was certified.
If the front passenger seat is not occupied,
the front airbag will not deploy, and the
P A S·
SE NG ER AIR BAG OFF
light w ill stay on . Nev­
er install a rearward-fac ing ch ild restra int on
the front passenger seat, the safest place fo r
a child in any ki nd of child restraint is at o ne
of the seati ng positions on the rear seat
¢ page 139, Child restraints on the front seat
- some important things to know
and
¢ page 163, Child Safety.
If the PASSENGER AIR BAG light com es
on ...
If the PA SSENGER AIR BAG OFF light comes
on w hen one of the conditions listed above is
met, be sure to check the light regular ly to
make certa in that the
PA SSENGER AIR BA G
OFF
light stays on cont inuous ly whenever the
ignit ion is on.
If the PA SS ENGER A IR BA G
OFF
l ight does not appear on and does not
stay on all the time, stop as soon as it is safe
to do so and
- react ivate the system by turning the ignition
off for more than 4 seconds and then turn­
i ng it on agai n;
- remove and reinstall the child restraint .
Make sure that the child restraint is properly
installed a nd that the safety be lt fo r the
front passenger seat has been correct ly
ro uted through the child rest raint as descr i-
A irbag system 15 1
bed in the child restraint manufacturer's in­
structions;
- make sure that the convertible locking fea ­
t u re on the safety belt for the front passen­
ger seat has been activated and that the
safety belt has been pulled tight.
- make sure t hat no electrical device (s uch as
a laptop, CD p layer, e lectronic games device
or power inverter) is p laced or used on the
front passenger seat if the device is connect­
ed to the 12-volt socket or the cigarette
lighter socket;
- make sure that no seat heater has been ret­
rofitted or otherwise added to the front pas ­
senger seat;
- make sure that nothing can interfere with
the safety belt buckles and that they are not
obstructed;
- make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion .
If the PASSENGER AIR BAG light still
does not come on ...
If the PASSENGER AIR BAG OFF light still
does not come on and does not stay on con­
ti nuously (whe n the ignition is sw itched on),
- take the child restraint off the front passen-
ger seat and install it properly at one of the
rear seat positions . Have the airbag system
inspected by yo ur Audi dealer immed iate ly.
- move the ch ild to a rear seat position and
ma ke sure that the c hild is properly restra in­
ed in a c hild restra int that is app rop riate fo r
its size an d age.
The PASSENGER AIR BAG light should
NOT come on .. .
The PAS SENGER AIR BAG OFF lig ht sho uld
NOT come on when t he ignit io n i s on and an
adult is sitting in a proper seating position on
the front passenger seat . If the
PASSENGER
AIR BAG O FF
light comes on and stays on or
flashes for about 5 seconds wh ile driving, un­
der these c ircumstances, make sure that:
- the adult on the front passenger seat is
properly seated on the center of the seat •
•

152 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 comes on, it
means that the re may be someth ing
wrong with the Advance d Airbag System .
It is possible that the airbag will inflate when it is not supposed to, or will not
in­
f late when it sho uld.
- Have the airbag system inspected imme­
diate ly by yo ur Audi dealer.
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 restrai nt that has not been proper ly
i nstalled w ill be seriously injured and can
be killed.
- Even though you r vehicle is equipped
with an Adva nced A irbag System, make
certain that all childre n, espec ially 12
ye ars and younger, always ride on the
b ack seat properly rest rained for their
age and size .
- Always inst all f orward o r rear-facing
child sea ts on the rear sea t - even with
an Advanced Airbag System.
- If you m ust ins tall a rearw ard-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
system inspected by you r Audi dealer .
- If, in exceptiona l circumstances, you
must install a forward-fac ing c hild 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
men t range, as far away from t he a irb ag
a s 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 passenger seat after taking
the steps described above, make su re the ..,.

154 Airbag system
-Work on the pyrotechnic circu it inter­
rupter must on ly be performed by a
qua lified technicians who have the ex­
perience, information and special tools necessary to perform the work safely .
- If the vehicle or the c ircuit interrupter
is scrapped, all applicable safety pre­
cautions must be followed.
@ For the sake of the environment
Undeployed airbag modules and preten­
sioners might be classified as Perchlorate Material -special handling may apply, see
www .dtsc.ca .gov/hazardouswaste/per­
chlora te. When th e vehicle o r parts of the
restraint system including airbag modules
a nd safety bel ts w ith p retens ioners are
scrapped, all applicable laws and regula­
tions must be observed. Your authorized
Audi dea ler is familiar wit h these requ ire­
ments and we recommend that you have
your dealer 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 th at the Advanced A irbag Sys ­
tem pe rforms in a crash. For example, using
tire -rim combinations not app roved by Audi,
lowering the vehicle, changing the stiffness of
the suspension, incl uding the springs, s uspen­
sion struts, shock absorbers etc. can change
the forces that are measured by the a irbag
sensors and se nt to the electron ic control
u ni t. Some suspension changes ca n, for exam­
p le, increase th e forc e levels meas ure d by t he
se nsors a nd make the airbag system deploy in
crashes in w hich it would not dep loy if the
cha nges had not been ma de. Ot her kinds of
cha nges may reduce the force levels meas ­
ured by the sensors and prevent the airbag
from deploy ing when it sho uld.
The sen so rs in the safety belt buckle fo r th e
driver an d front passenger seat tell the elec ­
tronic control module if the safety belt is
latched or not. If the safety belt is being used,
the front airbag will deploy at a slightly high- er rate of ve
hicle deceleration than i f the safe ­
ty belt is not being used. Therefore, in a par­
t icu lar coll is ion, it is possible that an airbag
will not deploy at a seat ing pos ition w here the
safety belt is be ing used but will inflate at the
pos ition where t he safety belt is not be ing
u sed. It is important that noth ing interfere
with the safety be lt buckles so that the s en­
sors can send the correct info rmation abou t
sa fe ty belt use to the elec troni c con trol un it .
A WARNING
-Changi ng the vehicle's suspension includ ­
ing use of unapp roved tire -rim combina ­
tions can change Advanced Airbag per­
formance and increase the r isk o f serious
personal injury in a crash.
- Never install suspension components
that do not have the same performance
characterist ics as the components orig i­
na lly installed on your vehicle .
- Never use tire-rim combinations that
have not been approved by Audi.
Knee airbags
Description of knee airbags
Applies to vehicles : wi th knee airbags
The knee airbag system can provide supple­
mental prot ection to properly restrained
front seat occupants.
Fi g. 14 5 Driver"s air bag
The driver knee airbag is in the instrument
panel underneath t he steering wheel
Q fig . 145, the airbag for the passenger is at
about the same height in the instrument pan-
el underneat h the glove compartment . ...,

The knee airbag offers additional protect ion
to the driver's and passenger's knees and up­
per and lower thigh areas and supp lements
the protect ion provided by the safety belts.
I f the front airbags deploy , the knee airbags
also deploy in fronta l collisions when the de ­
p loyment threshold stored in the control unit
is met c>
page 147, More important things to
know about front airbags.
In addition to their normal safety function,
safety be lts he lp keep the driver or front pas ­
senger in posit ion in a frontal coll is ion so that
the airbags can prov ide supplemental protec­
tion .
The airbag system is not a subst itute for yo ur
safety be lt. Rather, it is part of the overall oc­
cupant restraint system in your veh icle. Al­
ways remember that the airbag system can
only help to protect you if you are wea ring
your safety belt and wear ing it prope rly . T hi s
i s why you shou ld always wear you r safety
be lt, not just because the law requires yo u to
do soc>
page 128, General notes.
The safety belt buck le for the dr iver and front
seat passenge r have switc hes that tell the a ir­
bag con trol mod ule if the safety belt is be ing
used or not . If the safety belt is being used,
the knee airbag will deploy at a slightly higher rate of deceleration than if the belt is not be ­
ing used. Therefore, in a particu lar collision, it
is poss ible that an airbag will not deploy at a
seating position where the safety belt is being
used but will inflate at the position whe re the
safety belt is not be ing used.
Remember too, airbags will deploy only once
and only in certain kinds of accidents -your
safety belts are always there to offer protec ­
tion in those acc idents in which a irbags a re
not supposed to deploy or when they have a l­
r eady deployed, fo r example whe n your veh i­
cle strikes or is s truck by another afte r the
fi rst coll is ion .
This is just one of the reasons why an a irbag is
n ot a substi tute fo r the safety belt. The airbag
sys tem works most effective ly when used with
A irbag system 15 5
the safety belts. Therefore, always wear yo ur
safety belts correct ly .
I t i s important to remembe r that w hile the
s u pplementa l knee airbag system is designed
to reduce the likelihood of ser ious injuries,
other injuries, for example, swelling, bruising,
minor abrasions and friction b urns can a lso
occur when an airbag inflates.
The knee airbag system basically consists
of:
- The e lectronic control module
- Two inflatable ai rbags (airbag and gas gen -
erator), one for the driver and one for the
front passenger
- The ai rbag indicator lig ht in the i nstrument
pane l
The knee airbag system will not deploy:
-when the ignit io n is switched off
- in frontal collisions when the deceleration
measu red by t he con trol un it is too low
- in side co llisions
- in rear-end collisions
- in rollovers
- in the event of a system malfunction (warn-
ing/ind icator light is on)
c> page 17.
A WARNING
- Safety belts and the airbag system can
only provide protection when occupants
are in the proper seating position
i=>page 147.
- If the airbag ind icator light comes when
the vehicle is be ing used, have the sys­
tem inspected immediate ly by you r au­
thori zed A udi dealer. The airbag may not
wo rk properly when the vehicle acce le ra­
tion in a side co llision is high enough to
deploy the airbag . See also
i=>page 17.
-
•
•