2019 AUDI TT ROADSTER steering

8S8012721BA
Airbag system

Airbag system
Important information
area e eo MIT a a Lee)
sitting properly
Airbags are only supplemental restraints. For
airbags to do their job, occupants must always
properly wear their safety belts and be in a prop-
er 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 178,
> Adjust the front passenger's seat properly
=> page 179,
> Wear safety belts properly > page 184,
> Always properly use the proper child restraint
to protect children > page 210.
In a collision airbags must inflate within the blink
of an eye and with considerable force. The sup-
plemental airbags can cause injuries if the driver
or the front seat passenger is not seated proper-
ly. Therefore in order to help the airbag to do its
job, it is important, both as a driver and as a pas-
senger to sit 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
completely and provide supplemental protection
in certain frontal collisions > page 178, Correct
passenger seating positions. For details on the
operation of the seat adjustment controls
=> page 46.
It's especially important that children are proper-
ly restrained > page 210.
There is a lot that the driver and the passenger
can and must do to help the individual safety fea-
tures installed in your Audi work together as a
system.
Proper seating position is important so that the
front airbag on the driver side can do its job. If
you have a physical impairment or condition that
prevents you from sitting properly on the driver
seat with the safety belt properly fastened and
reaching the pedals, or if you have concerns with
regard to the function or operation of the Ad-
vanced Airbag System, please contact your au-
thorized Audi dealer or qualified workshop, or
call Audi Customer Relations at 1-800-822-2834
for possible modifications to your vehicle.
When the airbag system deploys, a gas generator
will fill the airbags, break open the padded cov-
ers, and inflate between the steering wheel and
the driver and between the instrument panel and
the front passenger. The airbags will deflate im-
mediately after deployment so that the front oc-
cupants can see through the windshield again
without interruption.
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 nothing should be
in their way when they deploy. Front airbags in
combination with properly worn safety belts slow
down and limit the occupant's forward move-
ment. Together they help to prevent the driver
and passenger from hitting parts of the inside
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 frontal
collisions. The triggering of the airbag system de-
pends on the vehicle deceleration rate caused by
the collision and registered by the electronic con-
trol unit. If this rate is below the reference value
programmed into the control unit, the airbags
will not be triggered, even though the car may be
badly damaged as a result of the collision. Vehi-
cle damage, repair costs or even the lack of vehi-
cle damage is not necessarily an indication of
whether an airbag should inflate or not.
Since the circumstances will vary considerably
between one collision and another, it is not possi-
ble to define a range of vehicle speeds that will
cover every possible kind and angle of impact
that will always trigger the airbags. 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 >
189

Airbag system

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 protection in those
situations in which airbags are not supposed to
deploy, or when they have already deployed; for
example, when your vehicle strikes or is struck by
another vehicle after the first collision.
This is just one of the reasons why an airbag is a
supplementary restraint and is not a substitute
for a safety belt. The airbag system works most
effectively when used with the safety belts.
Therefore, always properly wear your safety belts
=> page 182.

— 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 pre-
vent serious injuries to the legs and hips if
the airbag inflates.


ZA WARNING
Sitting too close to the steering wheel or in-
strument panel will decrease the effective-
ness of the airbags and will increase the risk
of personal injury in a collision.
— Never sit closer than 10 in (25 cm) to the
steering wheel or instrument panel.
— If you cannot sit more than 10 in (25 cm)
from the steering wheel, investigate wheth-
er 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, sit-
ting 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 inflates -
even with an Advanced Airbag.
— To reduce the risk of injury when an airbag
inflates, always wear safety belts properly
=> page 185, Safety belts.
— If children are not properly restrained, they
may be severely injured or killed when an
airbag inflates.
— Never let children ride unrestrained or im-
properly restrained in the vehicle. Adjust the
front seats properly.
— Always sit as far as possible from the steer-
ing wheel or the instrument panel
=>page 178.
ZA 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 replace
any airbag in your vehicle and assure system
effectiveness ina crash.
— Never permit salvaged or recycled airbags to
be installed in your vehicle.



190
Child restraints on the front seat - some
important things to know

> Be sure to read the important information and
head the WARNINGS for important details
about children and Advanced Airbags
=> page 210.
The airbag on the passenger side makes the front
seat a potentially dangerous place for a child to
ride. The front seat is not the safest place for a
child in a forward-facing child safety seat. It can
be a very dangerous place for an infant or a child
in a rearward-facing seat.
The Advanced Airbag System in your vehicle has
been certified to comply with the requirements
of United States Federal Motor Vehicle Safety
Standard (FMVSS) 208, as well as Canada Motor
Vehicle Safety Standard (CMVSS) 208 as applica-
ble at the time your vehicle was manufactured.
According to requirements, the front Advanced
Airbag System on the passenger side has been
certified for “suppression” for infants of about
12 month old and younger and for “low risk de-
ployment” for children aged 3 to 6 years old (as
defined in the standard).

8S58012721BA
Airbag system

Front airbags

pyre al eee mice a TLeey-le (4
The airbag system can provide supplemental
protection to properly restrained front seat occu-
pants.
= x 2
z 6


BFV-0063

iff i
Fig. 156 Location of front passenger's airbag: in the instru-
ment panel
Your vehicle is equipped with an “Advanced Air-
bag System” in compliance with United States
Federal Motor Vehicle Safety Standard
(FMVSS) 208, as well as Canada Motor Vehicle
Safety Standard (CMVSS) 208 as applicable at
the time your vehicle was manufactured.
The airbag for the driver is in the steering wheel
hub > fig. 155 and the airbag for the front pas-
senger is in the instrument panel © fig. 156. The
general location of the airbags is marked “AIR-
BAG”.
There is a lot you need to know about the airbags
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 infants and small children.

ZA\ 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 vehicle 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 po-
sitions to help reduce the risk of personal in-
jury if the driver's airbag inflates.
— 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.

ZA\ WARNING
Objects between you and the airbag will in-
crease the risk of injury in a crash by interfer-
ing with the way the airbag unfolds and/or by
being pushed into you as the airbag inflates.
— Always make sure nothing is in the front air-
bag 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 injury.
— 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 them to the doors or the wind-
shield; never place them over or near or at-
tach them to the area marked ,,AIRBAG“ on
the steering wheel, instrument panel or the
seat backrests; never place them between


193

Airbag system


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 music
players. Such objects could cause serious in-
jury in a collision, especially when the air-
bags inflate.

ZA\ WARNING
A person on the front passenger seat, espe-
cially infants and small children, will receive
serious injuries and can even be killed by be-
ing 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 un-
der these special conditions is impossible in
all conceivable situations 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 deployment are met.
— For its own safety, a child should always ride

properly restrained for its 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 (FMVSS)
208, as well as Canada Motor Vehicle Safety
Standard (CMVSS) 208 as applicable at the time
your vehicle was manufactured.

The front Advanced Airbag System supplements
the safety belts to provide additional protection
for the driver's and front passenger's heads and
upper bodies in frontal crashes. The airbags in-
flate only in frontal impacts when the vehicle de-
celeration is high enough.
The front Advanced Airbag System for the front
seat occupants is not a substitute for your safety
194
belts. Rather, it is part of the overall occupant re-
straint system in your vehicle. Always remember
that the airbag system can only help to protect
you, if you are sitting upright, wearing your safe-
ty belt and wearing it properly. This is why you
and
your passengers must always be properly re-
strained, not just because the law requires you to
be.
The Advanced Airbag System in your vehicle has
been certified to meet the “low risk” require-
ments for 3 and 6 year-old children on the pas-
senger side and very small adults on the driver
side. The low risk deployment criteria are intend-
ed to help reduce the risk of injury through inter-
action with the front airbag that can occur, for
example, by being too close to the steering wheel
and instrument panel when the airbag inflates.
In addition, the system has been certified to
comply with the “suppression” requirements of
the Safety Standard, to turn off the front airbag
for infants 12 months old and younger who are
restrained on the front passenger seat in child re-
straints that are listed in the Standard
= page 212, Child restraints and Advanced front
airbag system.
“Suppression” requires the front airbag on the
passenger side to be turned off if:
—a child up to about one year of age is restrained
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 Advanced Airbag System in your
vehicle was certified. For a listing of the child
restraints that were used to certify your vehi-
cle's compliance with the US Safety Standard
=>page 212,
— When a person is detected on the front passen-
ger seat that has an electrical capacitance that
is more than the total electrical capacitance of
a child that is about 1 year old restrained in one
of the rear-facing or forward-facing infant re-
straints (listed in Federal Motor Vehicle Safety
Standard 208 with which the Advanced Airbag
System in your vehicle was certified), the front
airbag on the passenger side may or may not
deploy.

Airbag system


— Always make sure that the safety belt upper
anchorage is behind the child restraint and
not next to or in front of the child restraint
so that the safety belt will be properly posi-
tioned.
— 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 some-
one who is heavier than the person actually
sitting on the seat. The presence of addi-
tional objects could cause the passenger
front airbag to be turned on when it should
be off, or could cause the airbag to work ina
way that is different from the way it would
have worked without the object on the seat.
— Make sure that the PASSENGER AIR BAG
OFF 7%; light comes on and stays on all the
time whenever the ignition is switched on.
PET ew elem me eae
The front passenger seat in your vehicle has a lot
of very important parts of the Advanced Airbag
System in it. These parts include the capacitive
passenger detection system, wiring, brackets,
and more. The control unit monitors the system
on the front passenger seat when the ignition is
switched on and turns the airbag indicator light
on when a malfunction in the one of the system
components is detected > page 200. Because the
front passenger seat contains important parts of
the Advanced Airbag System, you must take care
to prevent it from being damaged. Damage to
the seat may prevent the Advanced Airbag Sys-
tem for the front passenger seat from doing its
job ina 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 Airbag
System about the severity of the crash.
— An electronic control unit, with integrated
crash sensors for front and side impacts. The
196
control unit “decides” whether to fire the front
airbags based on the information received from
the crash sensors. The control unit also “de-
cides” 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 inside
the instrument panel for the front passenger.
— A capacitive passenger detection system under-
neath the front passenger seat cover. This sys-
tem measures the electrical capacitance of the
person in the seat. The information registered
is sent continuously to the electronic control
unit to regulate deployment of the front Ad-
vanced Airbag on the passenger side.
— An airbag monitoring system and indicator
light Ea in the instrument cluster.
—Asensor in each front seat registers the dis-
tance between the respective seat and the
steering wheel or instrument panel. The infor-
mation registered is sent continuously to the
electronic control unit to regulate deployment
of the front Advanced Airbags.
— The PASSENGER AIR BAG OFF #%; light comes
on and stays on in the headliner > page 200,
fig. 158 and tells you when the front Advanced
Airbag on the passenger side has been turned
off.
—Asensor in the safety belt latch for the driver
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.

ZA WARNING
Damage to the front passenger seat can pre-
vent the front airbag from working properly.
— Improper repair or disassembly of the front
passenger and driver seat will prevent the
Advanced Airbag System from functioning
properly.
— Repairs to the front passenger seat must be
performed by qualified and properly trained
workshop personnel.
— Never remove the front passenger or driver
seat from the vehicle. >

8S8012721BA
Airbag system

— when the electrical capacitance measured by
the capacitive passenger detection system for
the front passenger seat indicates that the pas-
senger side frontal airbag must be switched off
by the electronic control unit (the PASSENGER
AIR BAG OFF %; light > page 200 and how they
work comes on and stays on).


ZA\ WARNING
Sitting in the wrong position can increase the
risk of serious injury in crashes.
—To reduce the risk of injury when the airbags
inflate, the driver and passengers must al-
ways sit in an upright position, must not
lean against or place any part of their body
too close to the area where the airbags are
located.
— Occupants who are unbelted, out of position
or too close to the airbag can be seriously in-
jured by an airbag as it unfolds with great
force in the blink of an eye > page 190.

Z\ WARNING
A child in a rearward-facing child seat instal-
led on the front passenger seat will be seri-
ously injured and can be killed if the front air-
bag inflates - even with an Advanced Airbag
System.
— The inflating airbag will hit the child seat or
infant carrier with great force and will
smash the child seat and child against the
backrest, center armrest, door or roof.
— Never install a rearward facing child safety
seat on the front passenger seat unless the
PASSENGER AIR BAG OFF %; light comes
on and stays on. If the PASSENGER AIR
BAG OFF #%; light does not come on and stay
on, the inflating airbag will hit the child
safety seat or infant carrier with great force
and will smash the child safety seat and
child against the backrest, door or roof.
Have the airbag system inspected immedi-
ately by your authorized Audi dealer.

ZA WARNING
Objects between you and the airbag will in-

ing with the way the airbag unfolds or by be-
ing pushed into you as the airbag inflates.
— Never hold things in your hands or on your
lap when the vehicle is in use.
— Never transport items on or in the area of
the front passenger seat. Objects could
move into the area of the front airbags dur-
ing braking or other sudden maneuver and
become dangerous projectiles that can
cause serious personal injury if the airbags
inflate.
— Never place or attach accessories or other
objects (such as cup holders, telephone
brackets, large, heavy or bulky objects) on
the doors, over or near the area marked
“AIRBAG” on the steering wheel, instrument
panel, seat backrests or between those
areas and yourself. These objects could
cause injury in a crash, especially when the
airbags inflate.
— Never recline the front passenger's seat to
transport objects. Items can also move into
the area of the side airbag or the front air-
bag during braking or in a sudden maneuver.
Objects near the airbags can become projec-
tiles and cause injury, particularly when the
seat is reclined.
— Never place or transport objects on the front
passenger seat. Objects on the front passen-
ger seat could cause the capacitive sensor in
the seat to signal to airbag system that the
seat is occupied by a person when it in fact is
not, or that the person on the seat is heavier
than he or she actually is. The change in
electric capacitance because of such objects
can cause the passenger front airbag to be
turned on when it should be off, or can
cause the airbag to work in a way that is dif-
ferent from the way it would have worked
without objects on the seat.
— 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 some-
one who is heavier than the person actually



crease the risk of injury in a crash by interfer-

199

8S8012721BA
Airbag system


from the airbag as possible. 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.


ZA 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, have the airbag system in-
spected by your Audi dealer before transport-
ing anyone on the front passenger seat.

@ Tips
If the capacitive passenger detection system
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 3; 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, remov-
ing, 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 discarded
components do not cause injury or pollute the
environment.

ZA WARNING
Improper care, servicing and repair proce-
dures can increase the risk of personal injury
and death by preventing an airbag from de-
ploying when needed or deploying an airbag
unexpectedly:
— Never cover, obstruct, or change the steer-
ing wheel horn pad or airbag cover or the in-
strument panel or modify them in any way.
— Never attach any objects such as cup holders
or telephone mountings to the surfaces cov-
ering the airbag units.


— For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one mois-
tened 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 deploy and protect
properly.
— Never repair, adjust, or change any parts of
the airbag system.
— All work on the steering wheel, instrument
panel, front seats or electrical system (in-
cluding 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 au-
thorized Audi dealer or qualified workshop.
— 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 replacement
upholstery over the front seatbacks that
have not been specifically approved by Au-
di.
— Never use additional seat cushions that
cover the areas where the side airbags in-
flate.
— Damage to the original seat covers or to
the seam in the area of the side airbag
module must always be repaired immedi-
ately by an authorized Audi dealer.
— The airbag system can deploy only once. Af-
ter an airbag has been deployed, it must be
replaced with new replacement parts de-
signed and approved especially for your Audi
model version. Replacement of complete
airbag systems or airbag components must
be performed by qualified workshops only.
Make sure that any airbag service action is
entered in your Audi Warranty & Mainte-
nance booklet under AIRBAG REPLACEMENT
RECORD.
— For safety reasons in severe accidents, the
alternator and starter are separated from


203

Airbag system


the vehicle battery with a pyrotechnic circuit
interrupter.
— Work on the pyrotechnic circuit interrupter
must only be performed by a qualified
technicians who have the experience, in-
formation and special tools necessary to
perform the work safely.
— If the vehicle or the circuit interrupter is
scrapped, all applicable safety precautions

must be followed.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System
performs ina crash. For example, using tire-rim
combinations not approved by Audi, lowering the
vehicle, changing the stiffness of the suspension,
including the springs, suspension 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 example, increase the force levels meas-
ured 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 measured by
the sensors and prevent the airbag from deploy-
ing when it should.

Z\ WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced Airbag performance and in-
crease the risk of serious personal injury ina
crash.
— Never install suspension components that
do not have the same performance charac-
teristics as the components originally instal-
led on your vehicle.
— Never use tire-rim combinations that have
not been approved by Audi.

204

Knee airbags
Pye al) CooL Aide}
The knee airbag system can provide supplemen-
tal protection to properly restrained front seat
occupants.
2 8
2
z 6

Fig. 159 Driver's knee airbag
The driver knee airbag is in the instrument panel
underneath the steering wheel > fig. 159, the
airbag for the passenger is at about the same
height in the instrument panel underneath the
glove compartment.
The knee airbag offers additional protection to
the driver's and passenger's knees and upper and
lower thigh areas and supplements the protec-
tion provided by the safety belts.
If the front airbags deploy, the knee airbags also
deploy in frontal collisions when the deployment
threshold stored in the control unit is met
= page 198, More important things to know
about front airbags.
In addition to their normal safety function, safe-
ty belts help keep the driver or front passenger in
position in a frontal collision so that the airbags
can provide supplemental protection.
The airbag system is not a substitute for your
safety belt. Rather, it is part of the overall occu-
pant restraint system in your vehicle. Always re-
member that the airbag system can only help to
protect you if you are wearing your safety belt
and wearing it properly. This is why you should al-
ways wear your safety belt, not just because the
law requires you to do so > page 182, General
notes.