2014 AUDI A7 steering

154 Airbag system
~fig. 162. 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 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
,,A IRBAG" 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.
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.
~

-The Advanced Airbag System can deploy
in accordance with the .,low risk" opt ion
for 3- and 6-year-old children under the U.S. Federal Standard if a child w ith elec­
trical capac itance greater than the com­
bined capacitance of a typical one-year
old infan t restra ined in one of the for­
ward fac ing or rearward-fac ing ch ild
seats with which you r vehicle was cer ti­
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, sho uld al­
ways ride in the back properly restrained
for their age and size.
Advanced front airbag system
Your veh icle is equipped w ith a front Advanced
A irbag System in compliance with Un ited
States Federal Motor Vehicle Safety Standard
208 as applicab le at the time your vehicle was
manufactured.
The front Advanced Airbag System supple­ ments the safety belts to provide add it ional
p rotection fo r the driver's and front passeng­
e r' s heads and upper bodies in frontal crashes.
The airbags inflate only in frontal impacts
when the vehicle dece leration is high enough .
The front Advanced Airbag System for the
front sea t occ upants is no t a substit ute for
your safety bel ts. Rather, it is par t of the over­
all occupant restraint system in your veh icle.
A lways remember that the airbag system can
only help to protect yo u, if you are s itting up­
right, wearing yo ur 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 veh icle
has been certified to meet the "low r isk" re­
qu irements for 3 and 6 year-o ld children on
the passenge r side and very small adults on
A irbag system 15 5
the driver side . The low risk deployment crite­
ria are intended to help reduce the risk of in­
j u ry 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 add ition, the system has been certified to
comply with the "s uppression" requirements
of the Safety Standard, to turn off the front
airbag for infants 12 months old and younger
who are restrained on the fro nt passenger
seat in child restraints that are l isted in the
Standard
¢ page 177, Child restraints and
Advanced front airbag system.
"Suppress ion " requires the front a irbag 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 i n one
of the rear-fac ing or forward-facing infant
restraints listed in Federal Motor Vehicle
Safety Standard 208 with wh ich the Ad­
vanced Airbag System in your ve hicl e was
certified. For a listing of the chi ld restraints
tha t were used to certify your vehicle's com ­
pliance with the US Safety Standard
¢ page 177,
-When a person is detected on the front pas ­
senger seat that has an electrical capaci­
tance that is more than the tota l electrical
capacitance of a child that is about 1 year
old restrained in one of the rear-facing o r
forward -facing infant restraints (listed in
Federal Motor Vehicle Safety Standard 208
w ith which the Advanced A irbag System in
your veh icle was certified), the front airbag
on the passenger side may or may no t de­
p loy.
T he
PASSENGER AIR BAG OFF light comes on
whe n the elect ro ni c cont ro l unit de tects a to­
ta l elec trical c apac itance on the front passen­
ger seat that requi res 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 .
IJJ,,
•
•

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 162. 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 157
- 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 161.
-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 162, fig . 164 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.
-
•
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things on the seat cushion can have the
same eff ect. I f the front passen ger fron­
tal airbag is turned on, the
PASSENGER
AIR BAG OFF
light light will go out.
How the Advanced Airbag System
components work together
The fron t Advanced Airbag System and the
side airbags supplement the protection of­
fered by the front three -point safety be lts
with p retensioners and load limiters and the
adjustab le head restraints to he lp reduce the
risk of injury in a wide range of accident and
crash situat ions. Be sure to read the impor­
tant information about safety and heed the
WARNINGS in this chapter .
Dep loyment of the Advanced Airbag System
and the act ivation of the safety be lt preten­
sioners depend on the dece lerat ion measured
by the crash sensors and registered by the
e lectronic control un it. The amount of infla­
tion of the front airbags can also be adapted to the front seat posi tion, depend ing on the
d istance between the respective front seat
and the steering whee l or instrument panel as
registe red 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 involved in the crash .
On the passenger s ide, regard less of safety
be lt use, the front passenger f ronta l airbag
will be turned off if the electrical capacitance
measured by the capac itive passenger detec­
tion system on the front passenger seat is less
tha n the amount programmed in the electron­
ic control unit. The front passenger fronta l air­
bag will a lso be turned off if the capa cita nce
measured by the system for the front pa ssen­
ger seat equa ls t hat of an infant of abo ut one
yea r of age in one o f the child seats that was
used to cert ify the Advanced Airbag System
under Federal Motor Vehicle Safety Standard
208. The
PASSENGER AIR BAG OFF li ght
comes on and stays on to tell you when t he
front Adva nced Airbag System o n the passen­
ger s ide has been turned off~
page 162 .
Airba g sy stem 159
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 o ut of pos ition in any
way, your ris k of injury is m uc h higher.
- You will a lso receive serious injuries and
co uld even be killed if yo u 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 149.
More important things to know about
front airbags
Fi g. 16 3 In flated front a irbags
Safety belts a re important to he lp keep front
seat occupants in the proper seated position
so that ai rbags can unfold p roper ly and pro­
v ide s upplement al 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 driver a nd the front seat p assenger 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 th e airbag,
- and the head restraints have been properly adjusted .
Because airbags inflate in the bli nk of an eye
with great force, th ings you have on your lap
or have p laced on the seat cou ld become dan ­
gerous p ro jecti 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 i n .,,.

-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 passenger'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 that 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 161
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-
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-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 165
- 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 ...
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166 Airbag system
experience, informat ion and specia l
too ls 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 a irbag modu les and preten­
sioners might be classified as Perchlorate Material - special handling may apply, see
www.dtsc.ca.gov/haza rdo uswaste/per­
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety bel ts w it h pretens ioners are
s crapped, a ll applicable laws and regula­
tions mus t be observed. Your au thori zed
Aud i dea le r i s familiar with these requ ire­
ments an d we recommend that you have
your dea ler perfo rm this se rv 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 combina tions not app roved by Aud i,
lowe ring the vehicle, ch anging the stiffness o f
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 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 re d 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 p asse 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 collisio n, 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 combin a­
tions can change Advanced Airbag per­
formance an d increase the risk of serious
pe rsonal injury in a crash .
- Never install s uspension 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 65 Driver 's knee a irbag
T he dr iver knee airbag is in the ins trument
pane l underneath the steering wheel
~ fig. 165, the airbag for the passenger is at
about the same height in the instrument pan-
el underneat h the glove compartment. .,.

168 Airbag system
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.
Fig. 166 Inflated airbags protecting in a frontal colli·
s io n
The knee airbag system has been designed so
that the a irbags for the driver and front pas­
senger deploy in certain but not all frontal
coll isions.
If the front airbags deploy, the knee airbags
a lso 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
Q page 159,
fig . 163.
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 noth ing
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. Important safety instructions on the
knee airbag system
Applies
to vehicles: with 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 supplementa l protect ion.
A WARNING
-An inflating knee airbag can cause serious
i n jury. Wearing safety belts incorrectly and
improper seat ing 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 are seated too close
to any of the airbag locations. When ad­
justing their seat pos itions, it is impor­
tant that both the driver and the front passenger keep the ir upper bodies and
knees at the following m inimum 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
p loy .
- Always make sure that the knee airbag
can inflate without interference. Objects
between you and the airbag can increase
the risk of inju ry in an accident by inter­
fering w ith the way the airbag deploys or
by being pushed into you as the airbag
deploys.
- Never let anybody, espec ially children
or animals ride in the footwell in front