2019 AUDI TT ROADSTER belt

Airbag system

the device is connected to the 12-volt socket or
the cigarette lighter socket;
— make sure that no seat heater has been retrofit-
ted or otherwise added to the front passenger
seat;
— make sure that nothing can interfere with the
safety belt buckles and that they are not ob-
structed;
— make sure that there are no wet objects (such
as a wet towel) and no water or other liquids on
the front passenger seat cushion.
If the PASSENGER AIR BAG OFF &; light still
does not come on...
If the PASSENGER AIR BAG OFF 3, light still
does not come on and does not stay on continu-
ously (when the ignition is switched on),
— take the child restraint off the front passenger
seat and have the airbag system inspected by
your Audi dealer immediately.
The PASSENGER AIR BAG OFF 3; light
should NOT come on...
The PASSENGER AIR BAG OFF 3%; light should
NOT come on when the ignition is on and an adult
is sitting in a proper seating position on the front
passenger seat. If the PASSENGER AIR BAG OFF
#¥; light comes on and stays on while driving, un-
der these circumstances, make sure that:
— the adult on the front passenger seat is proper-
ly seated on the center of the seat cushion with
his or her back up against the backrest and the
backrest is not reclined,
— the adult is not taking weight off the seat by
holding on to the passenger assist handle
above the front passenger door or supporting
their weight on the armrest,
— the safety belt is being properly worn and that
there is not a lot of slack in the safety belt web-
bing,
— there are no aftermarket seat covers or cush-
ions or other things (such as blankets) on the
front passenger seat that might cause the ca-
pacitive passenger detection system to miscal-
culate electrical capacitance.
202
Important safety instructions on
monitoring the Advanced Airbag System
ZA WARNING
— If the status of the Advanced Airbag System
has changed while the vehicle is moving, the
PASSENGER AIR BAG OFF #¥; ON ® light
blinks for about 5 seconds to catch the driv-
er's attention. If this happens, always stop
as soon as it is safe to do so and check the
steps described above.
— If the PASSENGER AIR BAG OFF %; light
does not go off when an adult who is not
very small is sitting on the front passenger
seat after taking the steps described above,
have the airbag system inspected by your
authorized Audi dealer before transporting
anyone on the front passenger seat.

ZA WARNING
An airbag system that is not functioning prop-
erly cannot provide supplemental protection
in a frontal crash.
— If the airbag indicator light > page 18
comes when the vehicle is being used, have
the system inspected immediately by your
authorized Audi dealer. It is possible that
the airbag will inflate when it is not sup-
posed to, or will not inflate when it should.

ZA\ WARNING
If the front airbag inflates, a child without a
child restraint, or in a rearward-facing child
safety seat, or in a forward-facing child re-
straint that has not been properly installed
will be seriously injured and can be killed.
— If you must install a rearward-facing child
seat on the front passenger seat because of
exceptional circumstances and the PASSEN-
GER AIR BAG OFF #¥; light does not appear
and stay on, have the airbag system inspect-
ed by your Audi dealer.
— If, in exceptional circumstances, you must
install a forward-facing child restraint on
the front passenger seat, always move the
seat into its rearmost position in the seat's
fore and aft adjustment range, as far away

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
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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.

8S58012721BA
Airbag system

Remember too, airbags will deploy only once and
only in certain kinds of accidents - your safety
belts are always there to offer protection in those
accidents 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 after the first collision.
This is just one of the reasons why an airbag is
not a substitute for the safety belt. The airbag
system works most effectively when used with
the safety belts. Therefore, always wear your
safety belts correctly.
It is important to remember that while the sup-
plemental knee airbag system is designed to re-
duce the likelihood of serious injuries, other inju-
ries, for example, swelling, bruising and minor
abrasions and friction burns can also occur when
an airbag inflates.
The knee airbag system basically consists of:
— The electronic control module
— Two inflatable airbags (airbag and gas genera-
tor), one for the driver and one for the front
Passenger
— The airbag warning light in the instrument clus-
ter
The knee airbag system will not deploy:
— when the ignition is switched off
— in frontal collisions when the deceleration
measured by the control unit is too low
— in side collisions
—in rear-end collisions
—in rollovers
— in the event of a system malfunction (warning/
indicator light is on) > page 18.


Z\ WARNING
— Safety belts and the airbag system can only
provide protection when occupants are in
the proper seating position > page 198.
— If the airbag indicator light > page 18
comes when the vehicle is being used, have
the system inspected immediately by your
authorized Audi dealer. It is possible that
the airbag will inflate when it is not sup-
posed to, or will not inflate when it should.

aati S1e Rel
The risk of injury to the leg area can be reduced
by fully inflated knee airbags.
> 8 e z S
>...
Fig. 160 Inflated airbags protecting in a frontal collision

The knee airbag system has been designed so
that the airbags for the driver and front passen-
ger deploy in certain but not all frontal collisions.
If the front airbags deploy, the knee airbags also
deploy in frontal collisions when the deployment
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 > page 198, fig. 157.
Although they are not a soft pillow, they can
“cushion” the impact and in this way they can
help to reduce the risk of injury to the lower ex-
tremities.
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 important for
occupant safety that nothing should be in their
way when they deploy.
Fully inflated airbags in combination with proper-
ly worn safety belts slow down and limit the oc-
cupant's forward movement and help to reduce
the risk of injury.
205

Airbag system

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airbag system
Airbags are only supplemental restraints. Always
wear safety belts correctly and ride in a proper
seating position.
There is a lot that you and your passenger must
know and do to help the safety belts and airbags
to provide supplemental protection.

ZA WARNING
An inflating knee airbag can cause serious in-
jury. Wearing safety belts incorrectly and im-
proper seating 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 adjusting their
seat positions, it is important that both the
driver and the front passenger keep their
upper bodies and knees at the following
minimum safe distances:
—at least 10 in (25 cm) between the chest
and
the steering wheel/instrument panel.
—at least 4 in (10 cm) between the knees
and the lower part of the instrument pan-
el.
— 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 wear-
ing your safety belt. The risk increases even
more should the airbag deploy.
— Always make sure that the knee airbag can
inflate without interference. Objects be-
tween you and the airbag can increase the
risk of injury in an accident by interfering
with the way the airbag deploys or by being
pushed into you as the airbag deploys.
— Never let anybody, especially children or
animals ride in the footwell in front of the
passenger seat. If the airbag deploys, this
can result in serious or fatal injuries.
— Never carry objects of any kind in the foot-
well area in front of the driver's or pas-
senger's seat. Bulky objects (shopping
bags, for example) can interfere with or
prevent proper deployment of the airbag.

206

Small objects can be thrown through the
vehicle if the airbag deploys and injure you
or your passenger.
— Make sure there are no cracks, deep scratch-
es or other damage in the area of the instru-
ment panel where the knee airbags are lo-
cated.
— If children are incorrectly seated, their risk
of injury increases in a collision > page 210,
Child safety.

Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.

The side airbags are located in the sides of the
front seat backrests > fig. 161 facing the doors.
They are identified by the word “AIRBAG”.
The side airbags installed for the front seating
positions have been designed and certified to
help reduce the risk of injury that can be caused
by airbags when they inflate, particularly when
the occupant sitting next to it is not seated prop-
erly. The side airbag for the front passenger seat
can be used with properly installed child re-
straints. Please be sure to read the important in-
formation and warnings whenever using a child
restraint in a vehicle: Safety belts > page 182,
Airbag system > page 189, Child safety
=> page 210.
The side airbag system basically consists of:
— the electronic control module and external side
impact sensors

8S58012721BA
Airbag system

— the two side airbags located in the sides of the
front backrests
— the airbag warning light in the instrument clus-
ter.
The airbag system is monitored electronically to
make certain that it is functioning properly at all
times. Each time you turn on the ignition, the air-
bag system indicator light will come on for a few
seconds (self diagnostics).
The side airbag system supplements the safety
belts and can help to reduce the risk of injury to
the driver's and front passenger's upper torso on
the side of the vehicle that is struck in a side col-
lision. The airbag deploys in side impacts and on-
ly when the vehicle acceleration registered by the
control unit is high enough. If this rate is below
the reference value programmed into the control
unit, the side airbags will not be triggered, even
though the car may be badly damaged as a result
of the collision. It is not possible to define an air-
bag triggering range that will cover every possi-
ble angle of impact, since the circumstances will
vary considerably between one collision and an-
other. Important factors include, for example,
the nature (hard or soft) of the impacting object,
the angle of impact, vehicle speed, etc.
= page 208, Important safety instructions on
the side airbag system.
Aside from their normal safety function, safety
belts work to help keep the driver or front pas-
senger in position in the event of a side collision
so that the side airbags can provide 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 side airbag system can only
help to protect you if you are wearing your safety
belt and wearing it properly. This is another rea-
son why you should always wear your safety
belts, not just because the law requires you to do
so > page 182, General notes.
It is important to remember that while the sup-
plemental side airbag system is designed to re-
duce the likelihood of serious injuries, other inju-
ries, for example, swelling, bruising, friction
burns and minor abrasions can also be associated
with deployed side airbags. Remember too, side
airbags will deploy only once and only in certain
kinds of accidents - your safety belts are always
there to offer protection.
Vehicle damage, repair costs or even the lack of
vehicle damage are not necessarily an indication
of over-sensitive or failed airbag activation. In
some collisions, both front and side airbags may
inflate. Remember too, that airbags will deploy
only once and only in certain kinds of collisions -
your safety belts are always there to offer protec-
tion in those accidents in which airbags are not
supposed to deploy or when they have already
deployed.
The
side airbag system will not deploy:
— when the ignition is switched off
— in side collisions when the acceleration meas-
ured by the sensor is too low
—in front-end collisions
—in rear-end collisions
—in rollovers.
In some types of accidents the front airbags and
side airbags may be triggered together.

Z\ WARNING
— Safety belts and the airbag system will only
provide protection when occupants are in
the proper seating position > page 208.
— If the airbag indicator light > page 18
comes when the vehicle is being used, have
the system inspected immediately by your
authorized Audi dealer. It is possible that
the airbag will inflate when it is not sup-
posed to, or will not inflate when it should.

207

Airbag system

How supplemental side airbags work
Side airbags deploy instantly and can help re-
duce the risk of upper torso injuries for occu-
pants who are properly restrained.

S /
Fig. 162 Inflated side airbag on left side of vehicle
When the system is triggered, the airbag is filled
with propellant gas and breaks through a seam in
the seat surface area marked “AIRBAG”. It ex-
pands between the side trim panel and the pas-
senger. In order to help provide this additional
protection, the side airbag must inflate within a
fraction of a second at very high speed and with
great force. The supplemental side airbag could
injure you if your seating position is not proper or
upright or if items are located in the area where
the supplemental side airbag expands. This ap-
plies especially to children > page 210, Child
safety. Supplemental side airbags inflate be-
tween the occupant and the door panel on the
side of the vehicle that is struck in certain side
collision = fig. 162.
Although they are not a soft pillow, they can
“cushion” the impact and in this way they can
help to reduce the risk of injury to the upper part
of the body.
A fine dust may develop when the airbag deploys.
This is normal and does not mean there is a fire
in the vehicle.
208

Important safety instructions on the side
airbag system
Airbags are only supplemental restraints. Always
properly wear safety belts and ride in a proper
seating position.
There is a lot that you and your passengers must
know and act accordingly to help the safety belts
and airbags do their job to provide supplemental
protection.

Z\ WARNING
An inflating side airbag can cause serious or
fatal injury. Improperly wearing safety belts
and improper seating positions increase the
risk of serious personal injury and death
whenever a vehicle is being used.
— In order to reduce the risk of injury when the
supplemental side airbag inflates:
— Always sit in an upright position and never
lean against the area where the supple-
mental side airbag is located.
— Never let a child or anyone else rest their
head against the side trim panel in the
area where the supplemental side airbag
inflates.
— Always make sure that safety belts are
worn correctly,
— Do not let anyone sitting in the front seat
put their hand or any other parts of their
body out of the window.
— 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 de-
ploy.
— 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.
— Objects between you and the airbag can in-
crease the risk of injury in an accident by in-

terfering with the way the airbag unfolds or

Child safety

Child safety
Important information
Introduction
The physical principles of what happens when
your vehicle is in a crash apply also to children
=> page 183, What happens to occupants not
wearing safety belts?. But unlike adults and
teenagers, their muscles and bones are not fully
developed. In many respects children are at
greater risk of serious injury in crashes than
adults.
Because children's bodies are not fully developed,
they require restraint systems especially de-
signed for their size, weight, and body structure.
Many countries and all states of the United
States and provinces of Canada have laws requir-
ing the use of approved child restraint systems
for infants and small children.
Ina frontal crash at a speed of 20-35 mph
(30-56 km/h) the forces acting on a 13 lbs (6 kg)
infant will be more than 20 times the weight of
the child. This means the weight of the child
would suddenly be more than 260 lbs (120 kg).
Under these conditions, only an appropriate child
restraint properly used can reduce the risk of seri-
ous injury. Child restraints, like adult safety belts,
must be used properly to be effective. Used im-
properly, they can increase the risk of serious in-
jury in an accident.
If you must install a child restraint on the front
passenger seat in exceptional circumstances, be
sure to read and heed the important information
and warnings > page 190. Infants and other chil-
dren who are properly restrained in an appropri-
ate child restraint that is for their size and age
can benefit from the protection that supplemen-
tal side airbags provide in some kinds of crashes.
For more information please see information pro-
vided by the:
— National Highway Traffic Safety Administration
(NHTSA), currently at : http://www.safercar.gov
(for the USA)
— Transport Canada Information Centre, currently
at: http://www.tc.gc.ca (for Canada)
210
Consult the child safety seat manufacturer's in-
structions in order to be sure the seat is right for
your child's size > page 213, Important safety
instructions
for using child safety seats. Please
be sure to read and heed all of the important in-
formation and WARNINGS about child safety, Ad-
vanced Airbags, and the installation of child re-
straints in this chapter.
There is a lot you need to know about the Ad-
vanced Airbags in your vehicle and how they work
when infants and children in child restraints are
on the front passenger seat. Because of the large
amount of important information, we cannot re-
peat it all here. We urge you to read the detailed
information in this owner's manual about airbags
and the Advanced Airbag System in your vehicle
and the very important information about trans-
porting children on the front passenger seat.
Please be sure to heed the WARNINGS - they are
extremely important for your safety and the safe-
ty of your passengers, especially infants and
small children.

ZA WARNING
All vehicle occupants and especially children
must be restrained properly whenever riding
in a vehicle. An unrestrained or improperly re-
strained child could be injured by striking the
interior or by being ejected from the vehicle
during a sudden maneuver or impact. An un-
restrained or improperly restrained child is al-
so at greater risk of injury or death through
contact with an inflating airbag.

ZA WARNING
Children on the front seat of any car even with
Advanced Airbags can be seriously injured or
even killed when an airbag inflates. A child in
a rearward-facing child safety seat installed
on the front passenger seat will be seriously
injured and can be killed if the front airbag in-
flates.
— 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, center armrest, or
door.

8S8012721BA
Child safety


— Never install a rearward facing child safety
seat on the front passenger seat if the PAS-
SENGER AIR BAG OFF 3%; light does not
turn on and stay on. Have the system in-
spected immediately by an authorized Audi
dealer or authorized Audi Service Facility.


ZA\ WARNING
— Forward-facing child seats installed on the
front passenger seat may interfere with the
deployment of the airbag and cause serious
personal injury to the child.
— If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety and
well-being require the following special pre-
cautions to be taken:
— Always make sure that the forward-facing
seat has been designed and certified by its
manufacturer for use on a front passenger
seat with a front and side airbag.
— Always carefully follow the manufacturer's
instructions provided with the child seat or
infant carrier.
— Never put the forward-facing child re-
straint up against or very near the instru-
ment panel.
— Always move the front passenger seat to
the highest position in the up and down
adjustment range and move it back to the
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.
— Always make sure that the safety belt up-
per anchorage is behind the child restraint
and not next to or in front of the child re-
straint so that the safety belt will be prop-
erly positioned.
— Always make sure that nothing prevents
the front passenger's seat from being
moved to the rearmost position in its fore
and aft adjustment range.
— Never place objects on the seat (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child
seats). These may influence the electrical

capacitance measured by the capacitive
passenger detection system and can also
fly around in an accident and cause serious
personal injury.
— Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heat-
er for child seats) on the front passenger
seat if the device is connected to the 12-
volt socket or the cigarette lighter socket.
— Ifa seat heater has been retrofitted or
otherwise added to the front passenger
seat, never install any child restraint sys-
tem on this seat.
— Make sure that there are no wet objects
(such as a wet towel) and no water or oth-
er liquids on the front passenger seat
cushion.
— Always make sure that the PASSENGER
AIR BAG OFF #; light comes on and stays
on all the time whenever the ignition is
switched on.
— Never install a forward-facing child safety
seat on the front passenger seat if the
PASSENGER AIR BAG OFF %; light does
not turn on and stay on. Have the system
inspected immediately by an authorized
Audi dealer or authorized Audi Service Fa-
cility.
— Always buckle the child seat firmly in place
even if a child is not sitting in it. A loose
child seat can fly around during a sudden
stop or in a collision.
— Always read and heed all WARNINGS
whenever using a child restraint in a vehi-
cle > page 182, Safety belts, > page 189,
Airbag system and > page 210, Important
information.


G) Tips
Always replace child restraints that were in-
stalled in a vehicle during a crash. Damage to
a child restraint that is not visible could cause
it to fail in another collision situation.
211