Page 145 of 306

Safety belt preten
sioners
How safety belt pretensioners work
In fron t, side and rear-end collisions above a
parti cular severi ty and in a rollover, safety
b e lts ar e te nsion ed automatically .
Reversible safety belt tensioners
The safety belts on the front seats are equip
ped wit h power reve rsible tensioners . T he fo l
l ow ing f un ct ions are available w hen the dr iv
e r' s/fron t passenger 's sa fety bel ts are fas
tened :
- Automatic tensioners: at the start of a d rive,
the safety be lts automatically adjust to the
passenge r aft er a certai n time period o r ve
hicle speed. To switch the automa tic ten
s ioners off, select the fo llow ing in the M MI:
I CAR I funct ion button > (Car )* systems > Ve·
hide sett ings
> Seats > Driver 's seat or Pas
senger's seat
> Automat ic belt tensione r >
Off.
-In certa in driving situations, the safety belts
may t ighten with a reversib le tensioning
function
¢ page 190.
-The safety belts may also tighten w ith this
r evers ible tension ing funct ion in mino r colli
s ions .
Pyrotechnic safety belt pretensioners
The safety be lts are equipped with safety be lt
pretensioners. The system is activated by sen
s o rs in fron t, side and rear-end collisions of
great severity and in a rollover . Th is tightens
the bel t and takes up be lt slack ¢&.
in Service
and disposal of safety belt pre tensioner on
page 144.
T aking up the s lack helps to redu ce
forward occup ant movemen t during a colli
sion.
A WARNING
- It is possib le for the pre tensioners to de
ploy i ncor rect ly .
- T he pyrotechnic sys tem can only provide
protection for one co llision. If the pyro -
Safety belts 143
technic pretensioners deploy, the preten
sioning system must be replaced .
(D Tips
The pyro technic safety be lt pretensioners
ca n only deploy once .
- T he safety bel t pretensioners do not de
ploy in minor frontal and s ide collisions,
in rear-end co llisions, i n rollovers and in
co llisions involving very little impact
f o rce.
- A fine dust is released w hen the py ro
technic safety be lt pretensioners dep loy.
Th is is normal and is not caused by a fire
in the vehicle.
- The re levant safety requi rements must
be observed when the vehicle or compo
nents of the system are scrapped . A
qualified dealership is fam iliar with
these regulations and will be please d to
pa ss o n the information to yo u.
- Be sure to observe all safety, env iron
ment al and ot her regu la tio ns if t he ve hi
cle or ind ividu al p ar ts of t he system, par
t ic ular ly the s afe ty belt or airbag, are to
be disposed. We recommend you have
your authorized A udi dealer perform this
service fo r you .
Service and disposal of safety belt
pretensioner
The safety belt pretens ione rs are parts of the
saf ety be lts on your Aud i. Insta lling, remov
i ng, se rv ici ng o r repair ing of be lt pre tension
ers can dam age the safe ty belt sy stem and
prevent it from working correctly in a co lli
sio n.
T he re a re some impo rtan t thi ngs you have to
kn ow to m ake su re th at the effectiveness o f
t h e sys tem w ill not be impaired and tha t dis
ca rded components do not cause injury o r pol -
lu te the environment . ..,_ •
•
Page 146 of 306

144 Safety belts
,8. WARNING
Improper care, servicing and repair proce
dures can increase the risk of personal in
jury and death by preventing a safety belt
pretens ioner from act ivat ing when needed
or act ivat ing it unexpectedly:
- The belt pretensioner system can be acti
vated only once. If belt pretens ioners
have been act ivated, the system must be
replaced.
- Never repair, adjust, or change any parts
of the safety belt system.
- Safety belt systems includ ing safety be lt
pretensione rs cannot be repaired. Spe
ci al procedures are required for removal,
installation and disposal of this system.
- For any work on the safety belt system,
we strongly recommend that you see
your authorized Audi dealer or qualified
technician who has an Audi approved re
pair manual, training and specia l equip
ment necessary.
@ For the sake of the environment
Undep loyed airbag modu les and preten
sioners might be classified as Perchlorate
Material -specia l hand ling may apply, see
www.dtsc.ca.gov/haza rdou swaste/per
chlorate. When the vehicle or parts of the
restraint system including airbag modules
safety belts w ith pretens ioners are scrap
ped, all applicable laws and regulations
must be observed. Your authorized Aud i
deale r is familiar with these requ irements
and we recommend that you have your
dea ler perform this service for you.
Page 147 of 306

Airbag system Important things to know
Importance of wearing safety belts and
sitting properly
Airbags are only supplemental restraints. For
airbags to do their job , occupants must al
ways properly wear their safety belts and be
in a proper seating position.
For your safety and the safety of your passen
gers, before driving off, always:
"" Adjust the driver's seat and steering wheel
properly ¢
page 12 7,
"" Adjust the front passenger's seat properly
¢page 51,
"" Wear safety be lts properly ¢ page 139,
"" Always properly use the proper child re-
straint to protect chi ldren ¢
page 171.
In a collision, airbags must inflate within the
blink of an eye and with considerable force.
The supplemental airbags can cause injuries if
the driver or the front seat passenger is not
seated properly . Th erefore in order to help the
a ir bag to do its job, it is important, both as a
driver and as a passenger to s it properly at all
times.
By keeping room between your body and the
steering wheel and the front of the passenger
compartment, the airbag can inflate fully and
comp letely and provide supplemental protec
tion in certain frontal collisions ¢
page 12 7,
Proper occupant seating positions. For details
on the operation of the seat adjustment con
trols
¢ page 51.
It's especially important that children a re
properly restrained ¢
page 171.
There is a lot that the driver and the passen
gers can and must do to help the individual
safety features installed in your Aud i work to
gether as a system.
Proper seating pos ition is important so that
the front airbag on the driver side can do its
job. If yo u have a physical impa irment or con-
Airbag system 145
dition that prevents you from sitting properly
on the driver seat with the safety belt properly
fastened and reach ing the peda ls, or if you
have concerns with regard to the function or
operation of the Advanced Airbag System,
please contact your author ized Audi dealer or
qualified workshop, or call Audi Customer Re
l ations at 1-800-822-2834 for poss ible modi
fications to your vehicle.
When the airbag system dep loys, a gas gener
ator will fill the a irbags, break open the pad
ded covers, and inflate between the steer ing
whee l and the driver and between the instru
ment pane l and the front passenger. The air
bags will deflate immediately after deploy
ment so that the front occupants can see
through the windshield again without inter ruption .
All of th is takes place in the blink of an eye, so
fast that many people don't even realize that
the airbags have deployed. The airbags a lso
inflate with a great dea l of force and nothing
should be in their way when they deploy.
Front airbags in combination with properly
worn safety belts slow down and lim it the oc
cupant's forward movement . T ogether they
help to prevent the driver and front seat pas
senger from hitting parts of the inside of the
vehicle while reducing the forces acting on the
occupant during the crash . In this way they
help to reduce the risk of injury to the head
and upper body in the crash. Airbags do not
protect the arms or the lower parts of the
body.
Both front airbags will not inflate in all fronta l
collisions . The triggering of the airbag system
depends on the vehicle dece leration rate
caused by the collision and registered by the
electron ic control unit. If th is rate is below
the reference value programmed into the con
trol unit, the airbags will not be trigge red,
even though the car may be bad ly damaged as
a result of the collision . Ve hicl e damage, re
pair costs or even the lack of veh icle damage
is not necessarily an indication of whether an
airbag should inflate or not . .,. •
•
Page 148 of 306

146 Airbag sys te m
Since the cir cumstances will vary considerab ly
between one collision and anot her, it is not
possib le to def ine a range of vehicle speeds
that will cover every possible k ind and angle
of impact t hat will always trigger the airbags.
Important factors include, for example, the
nature (hard or soft) of the object which the
car h its, the ang le of impact, vehicle speed,
etc. The front airbags will also not inflate in
side or rea r collisions, or in ro ll-overs .
Always rememb er: Airbags will deploy only
once, and only in certa in k inds of co llisions.
Your safety belts are always there to offer pro
tection in those s ituations in which airbags
a re not supposed to deploy, or when they have
a lready deployed; for example, when your ve
hicle strikes or is struck by another vehicle af
ter the first co llision.
This is just one of the reasons why an airbag is
a supplementary restraint and is not a substi
tute for a safety belt . The airbag system
works most effect ively when used with the
safety belts. Therefore, always properly wear
your safety belts¢
page 136.
A WARNING
Sitting too close to the steer ing wheel or
instrument panel will dec rease the effec
t iveness of the airbags and will increase
the risk of personal injury in a collision .
- Never sit closer than 10 inches (2S cm)
to the stee ring wheel or instrument pan
el.
- If you cannot sit more than 10 inches
( 2 5 cm) from the s teer ing whee l, investi
gate whethe r adaptive equipmen t may
be available to help you reach the pedals
and increase your seating distance from
the steering wheel.
- If you are unrestrained, lean ing fo rward,
sitting sideways or out of position in any
way, your risk of in jury is much higher.
- You will also receive serio us injuries and
cou ld even be killed if you are up against
the airbag or too close to it when it in
flates - even with an Advanced Airbag. -
To reduce the risk of injury when an a ir
bag inflates, always wear safety be lts
properly ¢
page 139, Safety belts.
-Always make certain that ch ildren age 12
or younger always ride in the rear seat. If
children are not properly restrained, they
may be severely injured or killed when an
airbag inflates.
- Never let children ride unrestrained or
improperly restrained in the vehicle. Ad
just the front seats prope rly .
- Never ride with the back rest reclined.
- Always sit as far as possible from the
steer ing whee l or the instrument pane l
¢page 127.
-Always sit upright with your back against
the backrest of your seat .
- Never p lace your feet on the instrument
panel or on the seat. Always keep both
feet on the floor in front of the seat to
help prevent serio us in ju ries to the legs
and h ips if the airbag inflates.
- Never recline the front passenger 's seat
to transport objects , Items can a lso
move into the a rea of the s ide airbag or
the front a irbag du ring bra king or in a
sudden maneuve r. Objects nea r the air
bags can become projectiles and cause
in jur y when an airbag inflates.
A WARNING ~
Airbags that have deployed in a crash must
be replaced.
- Use on ly orig inal equipment airbags ap
proved by Aud i and installed by a trained
technician who has the necessary too ls
and d iagnost ic equipment to properly re
p lace any airbag in your vehicle and as
sure system effectiveness in a crash .
- Never permit salvaged or recycled air
bags to be installed in your vehicle.
Page 149 of 306

Child restraints on the front seat - some
important things to know
.. Be sure to read the important information
and heed the WARNINGS for important de
tails about chi ldren and Advanced Airbags
~ page 171.
Even though your vehicle is equipped with an
Advanced Airbag System, make certain that
a ll chi ldren, especially those 12 years and
younger, always ride in the back seat properly restrained for their age and size. The airbag
on the passenger side makes the front seat a potentially dangerous place for a child to r ide .
The front seat is not the safest place fo r a
chi ld in a fo rward-facing chi ld seat. It can be a
very dange ro us p lace for an infant or a ch ild in
a rearward -facing seat.
The Advanced Airbag System i n your veh icle
has been cert ified to comp ly with the require
men ts of United States Federa l Mo to r Veh icle
Safety Standard 208 as applicable at the time
your vehicle was manufactured.
The Standard requires the front a irbag on the
passenger side to be t urned off ("sup
p ressed") if a chi ld up to about one year of
age restrained in one of the rear -facing or for
ward -facing infant restraints listed i n Federal
Motor Vehicle Safety Standard 208 with wh ich
the Advanced Airbag System in your vehicle
was certified has been installed o n the front
passenger seat. For a listing of the child re
straints that were used to certify compliance
with the US Safety Standard ~
page 173.
The PASS ENG ER AIR BAG OFF light in the in
strument panel te lls you when the front Ad
vanced A irbag on the passenger side has been
turned off by the e lectronic control u nit.
Each t ime you sw itch on the ignit ion, the
PAS
SENGER AIR BAG OFF
light w ill come on for a
few seconds and:
- 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 passenge r seat
A irbag sys tem 147
equa ls the combined capacitance of an in
fant up to about one year of age and one of the rearwa rd-facing or forward-facing ch ild
restraints listed in Federal Motor Vehicle
Safety Standard 208 with which the Ad
vanced Airbag System in your ve hicle was
cert ified. For a listing of the child restraints
that were used to certify your vehicle's com p lia nce w ith the U.S. Safety Standard
~page 173.
-w ill stay on if t he re is a small ch ild or child
restrai nt on the front passenge r seat,
- w ill go off if the front passenger seat is oc
cupied by an adult as registered by the ca
pacitive passenger det ection sys tem
~ page 15 7, Monitoring the Advanced Air
bag System.
T he PASSENGER AIR BAG OFF lig ht comes on
when e lec trica l capacitan ce registe red on the
front passenger seat is eq ua l to or less than
the combined capacitance of a typical 1 year
o ld infant and one of the rearward-facing or
forward -facing chi ld restraints listed in Feder
al Motor Vehicle Safety Standard 208 with
which the Advanced Airbag System in your ve
hicle was certified.
If the total e lectr ica l capacitance registered
on the front passenger seat is more than that
of a typical 1 year-o ld child but less than the
weight of a small adu lt, the front airbag on
the passenger side can deploy (the
PASSEN
GER AIR BAG OFF
light does not come on).
If the
PASSENGER AIR BAG OFF light does
not come on, the front airbag on the passen
ger side has not been turned off by the e lec
tron ic contro l unit and ca n deploy if the con
t rol unit senses an impact that mee ts the co n
di tions s to red in its memo ry.
For example, th e airbag may deploy if:
-a small ch ild that is heav ier than a typical 1
year-old chi ld is on the front passenger seat
(regard less of whether the child is i n one of
the ch ild seats listed~
page 173), or
- a child who has outgrown child restraints is
on the front passenge r seat. .,,. •
•
Page 150 of 306

148 Airbag sys tem
If the front passenger airbag is turned off , the
PASSENGER AIR BAG OFF light comes on in
the instrument cluster and stays on .
I f the front passenger airbag deploys, the
F ederal Standard requires the airbag to meet
the " low risk" deployment criteria to reduce
the r isk of in jury through interaction with the
a irbag. "Low ris k" deployment oc curs in tho se
c rashe s that take pl ace a t lower decele ra tions
as defined in the electronic control un it
c::> page 158, PASSENGER AIR BAG OFF light.
A lw ays r emember, a chi ld seat or infant carri
er installed on the front seat may be s truck
and knocked out of position by the rap idly in
flati ng passenger's a irbag i n a frontal colli
sion . The airbag could greatly reduce the ef
fectiveness of t he ch ild restrai nt and even se
r io usly in ju re the child during infla tion.
For this reason, and because the back seat is
the safest place for chi ldren - when p roperly
r estra ined a ccord ing to the ir age and size - we
strongly recommend t hat childre n always si t
in the back seat
c::> page 171, Child Safety .
& WARNING
-
A child in a rearward -facing child seat in
stalled on the front passenger seat will be
ser iously injured and can be killed if the
front airbag inflates - even with an Ad
vanced Airbag System.
- The inflating a irbag will hit the child seat
or infant carrier w ith great force and w ill
smash the ch ild seat and child against
the bac krest , cen ter armres t, door or
roof.
- Always install rear-facing child seats on
the rear seat.
- If you must i nstall a rearward facing
child seat on the front passenge r seat
because of except iona l circumstances
and the
PASSENGER AIR BAG OFF ligh t
does not come on an d stay on, immedi
a tely install the re ar-facin g chi ld seat in a
rear seating position and have the ai rbag
system inspected by your Aud i dealer. -
Forwa rd- facing child seats installed on
the front passenger 's seat may interfere
wit h the dep loyment of the a irbag and
cause serious persona l injury to the
child .
& WARNING
-If, in except ional circumstances, you m ust
i nstall a forward-facing child restraint on
the front passenge r's seat:
- Always make sur e the forward-facing
seat has been designe d and certified by
its m anufacture r for u se on a fron t se at
wit h a passenger fron t and s ide airba g.
- Never p ut t he fo rward -facing child re
s tra int up agains t or ve ry near the instru
men t pa nel.
- Always move the passenge r seat into it s
rearmost pos ition in the seat' s fore and
aft a djustmen t range, as fa r away from
the air bag as possible before installing
the forwar d-facing ch ild restra int . The
backrest must be ad justed to an upright
position.
- Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the
time whenever the ignit ion is switched
on .
& WARNING
-To reduce the risk of serious injury, make
sure that the
PASSENGER AIR BAG OFF
light w ill be display ed whe nev er a child re
straint is insta lled on the front pa ssenger
se at and the ignition is sw itche d on .
- If the
PASSENGER AIR BAG OFF light
does no t stay on, per form the che cks de
scribed
c::> page 15 7, Monitoring the Ad
vanced Airbag System.
- Ta ke t he chi ld restraint off the fron t pas
senger sea t and inst all it prope rly at one
of the rear seat positions i f the
PASSEN
GER AIR BAG OFF
li ght does not stay on.
- Have the airbag system inspected by
your Aud i dea le r i mmediately.
Page 151 of 306

-Always carefully follow instru ctions from
c hild restraint manufacturers when in
sta lling child restraints.
A 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 would
have worked without the object on the
seat .
Airbag system 149
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occupants.
Fig. 156 Loc ation of driver airbag: in steering w heel
Fig. 157 Loc ation of front passenger's a irbag: in the in·
strument 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 pretens ioners are also activated
by the electronic control unit 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
q fig. 156 and the airbag for the
front passenger is in the instrument panel
Page 152 of 306

150 Airbag system
~fig. 157. 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.
~