instrument panel AUDI TT 2013 Owner´s Manual

It is not possible to define a range of vehicle
speeds that will cover every possible kind and
angle of impact that will always trigger the
airbags, since the circumstances will vary con­
siderably between one collision and another.
Important factors include, for example, the nature (hard or soft) of the object which the
car hits, the angle of impact, vehicle speed ,
etc. The front airbags will also not inflate in
side or rear collisions, or in roll-overs .
Always remember: Airbags will deploy only
once, and only in certain kinds of collisions.
Your safety belts are always there to offer pro­
tection in those situations in which airbags
are not supposed to deploy , or when they have
already deployed ; for example , when your ve­
hicle strikes or is struck by another after the
first collision.
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 effectively when used with the
safety belts. Therefore, always properly wear
your safety belts
c::;, page 100 .
A WARNING
Sitting too close to the steering wheel or
instrument panel will decrease the effec­
tiveness of the airbags and will increase
the risk of personal injury in a collision.
- Never sit closer than 10 inches (25 cm)
to the steering wheel or instrument pan­
el.
- If you cannot sit more than 10 inches
(25 cm) from the steering wheel, investi­
gate whether adaptive equipment may
be available to held you reach the pedals
and increase your seating distance from
the steering wheel.
- If you are unrestrained, leaning forward,
sitting sideways or out of position in any
way, your risk of injury is much higher.
- You will also receive serious injuries and could even be killed if you are up against
the airbag or too close to it when it in­
flates -even with an Advanced Airbag.
Airbag system 109
-To reduce the risk of injury when an air­
bag inflates, always wear safety belts
properly
c::;, page 104, Safety belts.
- Always make certain that children 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 properly .
- Never ride with the backrest reclined .
- Always sit as far as possible from the
steering wheel or the instrument panel
c::;, page 91, Proper occupant seating po­
sitions .
- Always sit upright with your back against
the backrest of your seat.
- Never place 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 serious injuries to the legs
and hips if the airbag inflates.
-Never recline the front passenger's seat
to transport objects. Items can also
move into the area of the side airbag or
the front airbag during braking or in a
sudden maneuver. Objects near the air­ bags can become projectiles and cause
injury when an airbag inflates .
A WARNING
Airbags that have deployed in a crash must
be replaced.
- Use only original equipment airbags ap­
proved by Audi and installed by a trained
technician who has the necessary tools
and diagnostic equipment to properly re­
place 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. •
•

110 Airbag sys te m
Child restraints on the front seat - some
important things to know
• Be sure to read the impo rtant in formation
and head the WARNINGS for important de­
ta ils about ch ildren and Advanced Airbags
i=> page 130.
Even though your vehicle is equipped with an
Advanced Airbag System, make certain that
all children, especially those 12 years and
younger, a lways ride in the back seat properly
restra ined 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 safety seat. It
can be a very dangerous place for a n infan t or
a child in a rearward-facing seat.
The Advanced Airbag System i n your veh icle
has been certified to comply with the Requ ire­
men ts of United States Federa l Mo to r Veh icle
Safety Standard 208 as applicable at the time
your vehicle was manufact ured.
The Standa rd requires the fron t air bag on t he
passenger side to be turned off ("sup­
p ressed") if a ch ild up to about one yea r of
age restrained in one of the rear-facing or for­
ward-facing infant restraints listed in Federal
Motor Vehicle Safety Standard 208 with which
the Advanced A irbag System in your vehicle
was certified has been installed on the front passenger seat . For a listing of the child re ­
straints that were used to certify compliance
with the US Safety Standard
c> page 132.
The PASSENGE R AIR BAG OFF light in the in­
strument panel tells you when the front Ad­
vanced A irbag on the passenger side has been
turned off by t he e lectronic control unit.
Each t ime you tur n on the ignition, the
PAS ­
SENGER AIR BAG OFF
l ight will come on for a
few seconds and:
- will stay on if the front passenger seat is not
occupied ,
- will stay on if there is a small child or child
restraint on the front passenger seat, -
will go off if the front passenger seat is oc ­
cupied by an adult as registered by the
weight -sensing mat
r::!) page 119, Monitor­
ing the Advanced Airbag System.
T he PASSENGER AIR BAG OFF light comes on
when the control unit detects a tota l weight
on the front passenger seat that req uires the
front a irbag to be turned off .
If the total weight on the front passenge r
seat is more than that of a typica l 1 year -old
c h ild b ut less than the weight of a small
adult, the front airbag on the passenger side
can deploy (the
PASSENGER AIR BAG OFF
li ght does not come on). If the PAS SENGER
AIR BAG OFF
light does not come on, the
front a irbag on the passenger side has not
been turned off by the elect ronic con trol unit
and can deploy if the control uni t se nses an
impact that meets the cond itions stored in its
memory .
For exampl e, th e airbag ma y deplo y if:
-a small ch ild that is heav ie r than a typical 1
year-old ch ild is on the front passenger seat
( r egard less of whethe r the child is in one of
the child safety seats listed
<:!) page 132), or
- a child who has outgrown ch ild restraints is
on t he front passenger seat.
If the front passenger airbag is turned off, the
PASSENGER AIR BAG OFF light comes on in
the instrument pane l and stays on .
The front airbag on the passenger side may
not deploy (the PASSENGER AIR BAG OFF
light does not illum inate and stay lit) even if a
small adult o r teenager, or a passenger who is
not sitt ing up rig ht w ith their back against a
non- re cli ned ba ck res t w it h thei r feet on the
vehicle floor in front of the sea t is on the front
passenge r seat
c::> page 91, Proper seating po ­
sition for the driver.
If the front passenger a irbag dep loys, the
F ede ra l St andard req uires the airbag to meet
the "low risk" dep loyment criteria to reduce
the risk of injury t hro ugh interaction wit h the
airbag. "Low risk" dep loyment occ urs in those
crashes that take place at lower dece lerat ions ..,_

112 Airbag system
-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
safety seat or carrier.
- Never place additional items on the seat
that can increase the total weight regis­ tered by the weight-sensing mat and can
cause i njury in a crash .
Front airbags
Description of front airbags
The airbag system con provide supplemental
protection to properly restrained front seat
occupants.
Fig. 104 Location of driver airbag: in stee ring wheel
Fig. 105 Location of front passenger's air bag : in the in ­
st rume nt panel
Your veh icle is equipped with an "Advanced
A irbag System" in compliance w ith United
States Federal Motor Vehicle Safety Standa rd
(FMVSS) 208 as applicab le at the time your
vehicle was manufactured. The safety belts
for the front seats have "pretensioners" that
help to take slack out of the belt system. The pretensioners are a
lso activated by the e lec­
tronic contro l unit for the airbag system.
T he front safety belts also have lo ad lim ite rs
to help reduce the fo rces applied to the body
in a crash .
T he airbag for the d river is in the steering
wheel hub~
fig. 104 and the ai rbag for the
fron t passenger is in the instrument panel
~ fig. 105 . The general locat ion of the ai rbags
is marked "AIRBAG".
T he re is a lot you need to know about t he a ir­
bags in you r vehicle. We urge yo u to read the
detailed information abo ut airbags, safety
belts and child safety in this and the other
chapters that make up the owner's literature .
P lease 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 alo ne for protection .
- Even when they deploy, airbags provide
only supplemental protect ion.
- Airbag work most effective ly when used
with properly worn safety belts.
- Therefore, always wear your safety belts
a nd make sure that eve rybody in your ve­
h icle is p roperly rest rained.
A WARNING
A person on the front passenger seat, es­
pec ially infants and sma ll children, w ill re­
ceive serio us injuries and can even be kil-
l ed by be ing too close to the ai rbag when
i t inflates .
- Al tho ugh the Advanced Airbag System in
your veh icle is designed to tur n
off the
front passenge r 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
b le situat ions that may happen during
-
the useful life of your vehicle . ~

-The Advanced Airbag System can deploy
in accordance with the "low risk" option
under the U .S . Federal Standard if a child
that is heavier than the typical one-year
old child is on the front passenger seat
and the other conditions for airbag de­
ployment 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
manufac tured.
The front Advanced Airbag System supple­ ments the safety belts to provide additional
protection for the driver's and front passeng­
er's head s and upper bodies in frontal crashes.
T he airbags inflate only in frontal impacts
when the vehicle deceleration is high enough.
T he 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
Airbag system 113
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 ¢
page 132 , Child restraints and
Advanced Airbags .
"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
¢page 132,
-weight less than a threshold level stored in
the control unit is detected on the front pas­
senger seat.
When a person is detected on the front pas­ senger seat, weighing more than the total
weight of a child that is about 1 year old re­
strained in one of the rear-facing or forward­
facing infant restraints (listed in Federal Mo­
tor Vehicle Safety Standard 208 with which
the Advanced Airbag System in your vehicle
was certified), the front airbag on the passen­ ger side may or may not deploy.
The
PASSENGER AIR BAG OFF light comes on
when the electronic control unit detects a to­
tal weight on the front passenger seat that re­
quires 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 conditions stored in
its memory.
If the total weight on the front passenger
seat is more than that of a typical 1 year-old , ..,. •
•

114 Airbag sys te m
but less than the weight of a small adu lt, the
front airbag on the passenger side may deploy (the
PASSENGER AIR B AG OFF light does not
come on).
F or exa mple , the air b ag m ay depl oy if:
- a small child that is heavier than a typical 1
year-o ld child is on the front passenger seat
(regardless of whe ther the child is in one of
the chi ld safety seats listed
~ page 132),
- a ch ild who has outgrown child rest raints is
on the front passenger seat.
If the front passenger airbag is turned off, the
PA SSENGER AIR BAG OFF light in the cente r
of the instrument panel w ill come on and stay
on.
The front a irbag on the passenger side may
not deploy (the PAS SENGER AIR BAG OFF
light does not illuminate and stay lit) if:
- a small adult or teenager is on the front pas­
senger seat
- a passenger who is not sitt ing upright with
their back against a non-reclined backrest
with their feet on the veh icle floo r in front
of the seat is on the front passenger seat.
If the front passenger airbag deploys, the Federal Standard requires the airbag to meet
the "low risk " deployment criteria to help re­
duce the risk of inju ry through interaction
with the airbag . "Low risk" deployment occurs
in those crashes that take place at lower de­
celerations as defined in the e lectronic control
un it
~ page 119.
Alw ays re m emb er: Even tho ugh you r vehicle
is equipped with Advanced Airbags, the safest
p lace for children is properly restrained on the
back seat . Please be sure to read the impor­
tant information in the sect ions that follow
and be sure to heed all of the WARNINGS.
A WARNING
To reduce the risk of injury when an airbag
inf lates, always wear safety belts properly.
- If you are unrestrained, lean ing forward,
sitting sideways or out of position in any
way, your risk of in jury is much higher . -
You will a lso receive serious injuries and
could even be killed if you are up aga inst
the airbag or too close to it when it in­
flates - even w ith an Advanced A irbag
~ page 108 .
A WARNING '"----
A child in a rearward-fac ing ch ild safety
seat installed on the front passenger seat
will be serious ly injured and can be killed if
the front airbag infla tes - even with an Ad­
vanced A irbag System.
- Altho ugh the Advanced Airbag System in
your veh icle is de signed to turn off the
front airbag when a rearward -facing
child restraint has been installed on the
front passenger seat, nobody can abso­
lutely g uarantee that dep loyment is im­
possible in all conceivable situations that
may happen dur ing the usefu l life of your
veh icle.
- The inflating airbag will h it the ch ild
safety seat or infant carrier with great
force and will smash the child safety seat and child aga inst the bac krest, door, or
roof .
- Always install rearward-facing ch ild re­
straints in the back seat.
- If you must install a rearward fac ing
child safety seat on the front passenger
seat be cause of exceptiona l circumstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
mediately insta ll the rear -fac ing child
safety seat in a rear seating position and
have the airbag system inspected by your
Aud i dealer.
A WARNING
If, in exceptional circumstances, you must
i nstall a forward-facing child restraint on
the front passenger's seat:
- Always make sure the forward-facing
seat has been designed and certified by
its manufacture r fo r use on a front seat
with a passenger front and s ide a irbag .

-Never put the forward-facing child re­
straint up against or very near the instru­
ment panel.
- Always move the passenger seat into its
rearmost position in the seat's fore and
aft adjustment range, as far away from
the airbag as possible, before installing
the forward-facing child restraint . The
backrest must be adjusted to an upright
position.
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the
time whenever the ignition is switched
on.
Advanced Airbag System components
The front passenger seat in your vehicle has a
lo t of very important parts of the Advanced
Airbag System in it. These parts include the
weight-sens ing mat, sensors, wiring, brack­
ets, and more. The function of the system in
the front passenger seat is checked by the
electronic control unit when the ignition is on.
The control unit monitors the Advanced Air­
bag System and turns the airbag indicator
light on when a malfunction in the system
components is detected. The function of the
airbag indicator light is described in greater
detail below. Because the front passenger
seat contains important parts of the Ad­
vanced Airbag System, you must take care to
prevent it from being damaged. Damage to
the seat may prevent the Advanced Airbag 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 vehicle that
measure vehicle acceleration/deceleration
to provide information to the Advanced Air­
bag System about the severity of the crash.
-An electronic control unit, with integrated
crash sensors for front and side impacts .
The control unit "decides" whether to fire
the front airbags based on the information
r eceived from the crash sensors. The control
Airbag system 115
unit also "decides" whether the safety belt
pretensioners should be activated.
- An Advanced Airbag with gas generator for
the driver inside the steering wheel hub.
- An Advanced Airbag with gas generator in­
side the instrument panel for the front pas­
senger.
- A weight-sensing mat under the upholstery
padding of the front passenger seat cushion
that measures the total weight on the seat.
The inform ation registered is sent continu­
ously to the electronic control unit to regu­
late deployment of the front Advanced Air­
bag on the passenger side.
- An airbag monitoring system and indicator
light in the instrument cluster
c:;. page 119.
-The PASSENGER AIR BAG OFF light comes
on and stays on in the center of the instru­
ment panel
c:;. page 119, fig. 107 and tells
you when the front Advanced Airbag on the
passenger side has been turned off.
- A sensor below the safety belt latch for the
front seat passenger to measure the tension
on the safety belt. The tension on the safety
belt and the weight registered by the
weight-sensing mat help the control unit
"decide" whether the front airbag for the
front passenger seat should be turned off or
not
c:;. page 110, Child restraints on the
front seat -some important things to
know.
- A sensor in the safety belt latch for the driv­
er and for the front seat passenger that
senses whether that safety belt is latched or
not and transmits this information to the
electronic control unit .
.&_ WARNING
Damage to the front passenger seat can
prevent the front airbag from working
properly.
- Improper repair or disassembly of the
front passenger and driver seat will pre­
vent the Advanced Airbag System from
functioning properly.
- Repairs to the front passenger seat must
be performed by qualified and properly
-
trained workshop personnel. 111>
•
•

-If the residue should get into your eyes,
flush them with water.
Monitoring the
Advanced Airbag System
~ Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advanced Airbag System : the airbag
monitoring indicator light and the
P ASS EN­
GER AIR BA G OFF
light .
The Advanced Airbag System (including the
electronic control un it, sensor circuits and sys­
tem wiring) is monitored continuously to make sure that it is functioni ng properly
whenever the ignit ion is on . Each time you
turn on the ignition , the airbag monitoring in­
d icator light
I will come on fo r a few seconds
(self diagnos tics) .
The system mu st be inspect ed when the
indicator light
I :
- does not come on when the ignit ion is
switched on,
- does not go out a few seconds after you
have switched on the ignition, o r
- comes on wh ile driving .
If an airbag system malfunction is detected,
the indicator light will first start flashing to
catch the driver's attention and then stay on
continuously to serve as a constant reminder
to have the system inspected immediately.
If a malfunction occurs that tur ns the front
a irbag on the passenger side off, the
P A SSEN­
GER AIR BAG OFF
li ght will come on and stay
on whenever the ignition is on.
_& WARNING
An airbag system that is not funct ioning
properly cannot provide supp lemental pro­
tection in a frontal crash .
- If the airbag indica tor light comes on, it
means that there may be someth ing
wrong wit h the Advanced Ai rbag System.
-
A irba g sy stem 119
It is possible that the airbag wi ll inflate
when it is not supposed to, or will not in­
flate when it should.
- Have the airbag system inspected imme­
diate ly by your Audi dealer.
PASSENGER AIR BAG OFF light
F ig . 107 Sect io n fro m t he in str ument pa nel: PASSEN ­
GER AIR BAG O FF lig ht
The PAS SENGER AIR BAG OFF light is located
in the center of the instrument panel
~ fig . 107 .
The PASS ENGER AIR BAG OFF light will come
on and stay on to tell you when the front Ad­
vanced Airbag on the passenger s ide has been
turned off by the electron ic control unit . Each
t ime you turn on the ignit ion , the
PA SS EN­
GER A IR BAG OFF
light will f lash for a few
seco nds and:
- will stay on if the front passenger seat is not
occup ied,
- w ill stay on if the re is a small ch ild or child
restrai nt on the front passenger seat,
- will go out if the front passenger seat is oc­
cupied by an adult as registered by the
we ight-sensing mat .
The
PAS SENGER AIR BAG OFF l ight must
come on and sta y on
if the ignition is on and
- a car bed has been installed on the front
seat, or
- a rearward-facing child restraint has been
installed on the front passenger seat, or
- a forward-facing chi ld restraint has been in-
stalled on the front passenger seat, or ..,.

-a safety be lt extender has not been left in
the safety belt latch for the front passenger
seat .
I n addition to the
P ASS ENGER AIR B AG OFF
light in the center of the instrument panel,
the message
PA SSENGE R AIR BAG OFF or
PASSENGER AI R BAG ON will briefly appear
in the instrument cluster display. Th is is to in­
form the driver of the current front passenger
airbag status .
Important safety instructions on
monitoring the Advanced Airbag System
A 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 someth ing
wrong with the Advanced Airbag System .
It is possible that the airbag will inflate
when it is not supposed to, or w ill not in­
flate when it should.
- Have the airbag system inspected imme­
diately by your Aud i dealer.
A WARNING
If the front airbag inflates, a ch ild without
a child restra int, in a rearward-facing child
safety seat or in a forward-facing chi ld re­
straint that has not been properly insta lled
wi ll be seriously injured and can be ki lled .
- Even though your veh icle is equipped
with an Advanced Airbag System, make certain that a ll children, especially 12
years and younger, a lways ride on the
back seat properly restrained for their
age and size.
- Always install forward or rear-facing
child safety seats on the rear seat -even
with an Advanced Airbag System.
- If you must install a rearward-facing
child safety seat on the front passenger
seat because of exceptional circumstan­ ces and the
PAS SENG ER AIR BAG OFF
light does not appear and stay on, imme-
A irbag system 12 1
diately install the rear- facing child safety
seat in a rear seat ing pos ition and have
the airbag system inspected by your Audi
deale r.
- A t ight tether or other strap on a rear­
ward-facing child restraint attached to
the front passenger seat can put too much p ressu re on the weight-sensing
mat in the seat and reg ister more weight
than is a ctually on the seat. The heavier
weight regis tered can make the system
wo rk as tho ugh an adult we re on the seat
and deploy the Advanced Airbag when it
m ust be suppressed causing serious or
even fata l injury to the ch ild.
- If, in exceptiona l circumstances, you
m ust install a forward-fac ing ch ild 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
ment range, as fa r away from the a irbag
as poss ible. The backrest must be ad just­
ed to an upright pos ition. Make sure that
the
PASSENGER AIR BAG OFF light
comes on and stays on all the time when­
ever the ignition is switched on .
A WARNING
-
-If the PASSENGER AIR BAG OFF light
does not go out when an ad ult is sitting
on the front passenger seat after taking
the steps described above, make sure the adu lt is properly seated and restra ined at
one of the rear seat ing pos itions.
- Have the airbag system inspected by
your Aud i dea ler before transporting
anyone on the front passenger seat.
(l) Tips
If the weight-sensing mat in the front pas­
senger seat detects an empty seat, the
front airbag on the passe nger side will be
turned off, and
PASSENGER AIR BAG OFF
will stay on.
•
•

122 Airbag system
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.
- 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 be activated only
once. After an airbag has inflated, it
must be replaced by an authorized Audi
dealer or qualified technician who has
the technical information, training and
special equipment necessary.
- The airbag system can be deployed only
once. After an airbag has been deployed,
it must be replaced with new replace­
ment parts designed and approved espe­
cially for your Audi model version. Re­
placement of complete airbag systems
or airbag components must be per­
formed by qualified workshops only.
Make sure that any airbag service action
is entered in your Audi Warranty & Main­
tenance booklet under
AIRBAG REPLACE­
MENT RECORD.
- 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 dealer -risk of an accident!
- If the vehicle or the circuit interrupter
is scrapped, all applicable safety pre­
cautions must be followed.

@ For the sake of the environment
Undeployed airbag modules and preten­
sioners might be classified as Perchlorate
Material -special handling may apply, see
www.dtsc.ca .gov/hazardouswaste/per­
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts with pretensioners are
scrapped, all applicable laws and regula­
tions must be observed. Your authorized
Audi dealer is familiar with these require­
ments and we recommend that you have
your dealer perform this service for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag Sys­
tem performs in a crash. For example, using
tire-rim combinations not approved by Audi,
lowering the vehicle, changing the stiffness of
the suspension, including the springs, suspen­
sion struts, shock absorbers etc. can change
the forces that are measured by the airbag
sensors and sent to the electronic control
unit. Some suspension changes can, for exam­
ple, increase the force levels measured by the
sensors and make the airbag system deploy in
crashes in which it would not deploy if the
changes had not been made. Other kinds of
changes may reduce the force levels meas ­
ured by the sensors and prevent the airbag
from deploying when it should.
The sensors in the safety belt buckle for the
driver and 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 vehicle deceleration than if the safe­
ty belt is not being used. Therefore, in a par­
ticular collision, it is possible that an airbag
will not deploy at a seating position where the safety belt is being used but will inflate at the
position where the safety belt is not being
used. It is important that nothing interfere
with the safety belt buckles so that the sen-
Airbag system 123
sors can send the correct information about
safety belt use to the electronic control unit.
A WARNING
Changing the vehicle's suspension includ­
ing use of unapproved tire-rim combina­
tions can change Advanced Airbag per­
formance and increase the risk of serious personal injury in a crash.
- Never install suspension components
that do not have the same performance characteristics as the components origi­
nally installed on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
A WARNING
-
Items stored between the safety belt
buckle and the center console can cause
the sensors in the buckle to send the
wrong information to the electronic con­
trol module and prevent the Advanced Air­
bag System from working properly.
- Always make sure that nothing can inter­ fere with the safety belt buckles and that
they are not obstructed.
Knee airbags
Description of knee a irbags
The knee airbag system can provide supple­
mental protection to properly restrained
front seat occupants.
Fig. 108 Dr iver's airbag
The driver knee airbag is in the instrument
panel underneath the steering wheel
~ fig. 108, the airbag for the passenger is at Ill>