2015 AUDI TT ROADSTER wheel

108 Airbag sys tem
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.
F or your safety and the safety of your passen­
gers, before driving off, a lways:
• Adjust the driver's seat and steering wheel
properly
c:> page 92,
• Adjust the front passenger's seat properly
c:> page 60,
• Wear safety be lts properly c:> page 102,
• Always properly use the proper child re-
straint to protect children
c:> page 129.
In a collision airbags must inflate within the
blink of an eye and with considerable force .
The supplemental airbags can cause injuries if
the dr iver or the front seat passenger are not
seated properly . Therefore in order to help the
a ir bag to do its job, it is important, both as a
d river and as a passenge r to sit properly at all
times.
By keeping room between your body and the
steering wheel and the front of the passenger
compa rtment, the airbag can inflate fully and
comp letely and provide supp lemental protec­
tion in ce rtain frontal collisions
c:> page 92,
Proper occupant seating positions . For detai ls
on the operat ion of the seat adjustment con­
trols
c:> page 60 and c:> page 61.
I t's especially important that children a re
properly restrained
c:> page 129.
There is a lot that the d river and the passen­
ger can and must do to help the individua l
safety features ins talled in your A udi work to­
gether as a system.
Prope r seat ing pos ition is important so that
the front airbag on the drive r side ca n do i ts
job. If yo u have a physical impa irment or con- dition 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 Advanced Airbag System,
please contact your author ized Audi dealer or
qualified workshop, or call Audi Customer Re­
lations at 1-800-822-2834 for poss ible modi­
fi cat ions to your veh icle.
When the airbag system deploys, a gas gener ­
ator will f ill the a irbags, break open t he pad­
ded cove rs, and inflate between the steering
whee l and the dr ive r and between the instru­
ment pane l and the fron t passenger. The a ir­
bags will deflate immediately after dep loy­
ment so that the front occupants can see
t hr ough the windshie ld again witho ut inter­
ruption .
All of th is takes p lace in the b link of an eye, so
fast that many peop le 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 a irbags in combination wi th properly
worn safety belts slow down and lim it the oc ­
cupant's forward movement . T ogether they
help to prevent the drive r and passenger from
hitting parts of the inside the vehicle while re­
ducing the fo rces acting on t he occ upan t dur­
ing 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 wi ll not inflate in all fronta l
collisions . The triggering of the a irbag system
depends on the vehicle dece leration rate
caused by the co llision and registered by the
electron ic control unit. If th is rate is below
the reference value programmed in to the con­
trol unit , the airbags will not be triggered ,
even though the car may be badly damaged as
a resu lt of the co llision . Ve hicle damage, re­
pair costs o r even the lack of ve hicle damage
is not necessarily an indica tion of whether an
airbag shou ld inflate or not .
It is not possib le to define a range of vehicle
speeds that w ill cove r every possib le 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 ro ll-overs .
A lwa ys
rem ember : Airbags will deploy only
once, and only in certa in kinds of collisions .
Your safety belts are always there to offer pro­
tection in those s ituations in which airbags
are not supposed to deploy , or when they have
a lready deployed ; fo r example , when yo ur ve­
h icle strikes or is struck by another after the
first collision .
This is just one of the reasons why an a irbag is
a supplementary restra int and is not a s ubst i­
tute for a safety belt . The airbag system
works most effectively when used with the
safety belts. Therefore, always properly wear
your safety belts
¢ page 100.
A WARNING
Sitting too close to the steer ing wheel or
instrument panel will decrease the effec­
tiveness of the airbags and will increase
the risk of pe rsonal injury in a co llision .
- Never sit closer than 10 inches (25 cm)
to the stee ring wheel or instrument pan­
el.
- If you cannot sit more than 10 inches
(25 cm) from the steer ing whee l, investi­
gate whether adaptive equipment may
be available to held you reach the pedals
and increase your seating dis tance from
the steering wheel.
- If you are unrestrained, lean ing fo rward,
sitting sideways or out of position in any
way, yo ur risk of inj ury is much highe r.
- You w il l also receive serio us inju ries 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 r isk o f injury when an air ­
bag inflates, a lways wear safety belts
proper ly ¢
page 103, Safety belts .
Airbag sys tem 109
-If ch ildren are not prope rly restrained,
they may be severely injured or killed
when an airbag inflates.
- Never let ch ildren ride unrestra ined or
improperly restrained in the vehicle. Ad­
just the front seats properly.
- Always sit as far as possible from the steer ing whee l or the instrument panel
¢ page 92, Proper occupant seating po­
sitions.
- Always sit upright with your back against
the backrest of your seat.
- Never p lace your feet on the instrument
panel or on t he seat. Always keep both
feet on the f loor in front of the seat to
help prevent serious in ju ries to the legs
a nd hips if the airbag inflates.
A WARNING
A irbags that have deployed in a crash must
be replaced.
- Use on ly orig inal equipment airbags ap­
proved by Aud i and i nstalled by a trai ned
technician who has the ne cessary too ls
and d iagnost ic equipment to properly re­
place any airbag in your vehicle and as­
sure system effectiveness in a crash.
- Never perm it salvaged or recycled air ­
bags to be installed in you r vehicle .
Child restraints on the front seat - some
important things to know
.. Be s ure to read the important in forma tion
and head the WARNINGS for important de ­
tails about ch ildren and Advanced A irbags
¢ page 129.
The airbag on the passenger side makes the
front seat a pote ntially dange rous place for a
c hi ld to ride . The front seat is not the safest
pla ce for a child in a fo rward-facing child safe ­
ty seat.
It can be a very d angerous place for a n
infant or a chi ld in a rearwa rd -fa cing seat.
The Advanced A irbag System in you r vehicle
has been ce rtified to comply wit h the Require­
ments of United States Fede ral Motor Vehicle
1111>
•
•

112 Airbag system
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occupants.
Fig . 110 Locat ion of driver airbag: in steering wheel
Fig. 111 Locatio n of front passenger 's ai rbag: in t he 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 safety belts
for the front seats have "pretensioners" that
help to take slack out of the belt system. The
pretensioners are also activated by the elec·
tronic 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 steer ing
wheel hub ¢
fig. 110 and the airbag for the
front passenger is in the instrument panel
¢
fig . 111. 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 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 alone 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
and make sure that eve rybody in your ve­
h icle is p roperly restrained.
A WARNING
A person on the front passenger seat, es­
pec ially infants and sma ll children, w ill re­
ceive serious injuries and can even be kil­
l ed by be ing too close to the airbag when
i t inflates .
- Al tho ugh the Advanced Airbag System in
your veh icle is designed to tur n
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
b le situations that may happen during
the useful life of your vehicle .
- The Advanced Airbag System can dep loy
in accordance with the "low risk" option
under the U.S . Federal Standa rd if a child
that is heav ie r th an the typical one-year
old ch ild is on the front passenger seat
and the other condi tions for a irbag de­
p loyment are met .
- F or its own safe ty, a child sho uld 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
208 as applicable at the time your vehicle was
manufactured.
The front Advanced A irbag System supp le­
ments the safety belts to provide additiona l
protection for the driver's and front passeng­
er's heads and upper bodies in fronta l crashes.
The airbags inflate only in frontal impacts
when the vehicle deceleration is high enough.
The 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 veh icle.
Always remember that the airbag system can
only help to protect you, if you are s itting up­
right, wearing your safety belt and wea ring it
prope rly. This is why you and you r passenge rs
must always be properly restr ained , not just
because the law requires yo u to be.
The Advanced Airbag System in your veh icle
h as been certified to meet the "low ris k" re ­
qu irements for
3 and 6 year-o ld childre n on
the passenger side and very small adu lts on
the driver side. The low risk dep loyment crite­
ria are intended to he lp reduce the risk of in­
jury through interaction with the front airbag that can occur, for example, by be ing too
close to the steer ing wheel and instrument
panel when the airbag inflates.
In addition, the system has been certif ied to
comply w ith the "suppression" requ irements
of the Safety Standard, to turn
off the front
airbag for infants
12 months old and younger
who are restra ined o n the front passenger
seat in c hild restra ints that a re listed in the
Standa rd
¢page 131, Child restraints and
Advanced Airbags.
"Suppression" requires the front airbag on the passenger side to be turned
off i f:
- a ch ild up to about one year of age is re­
stra ined on the front passenger seat in one
of the rear-facing or forward-fac ing infant
rest raints listed in Federa l Motor Veh icle
Safe ty S tanda rd 208 w it h which t he Ad­
vanced Airbag System in your vehicle was certified . For a listing of the child rest raints
A irbag system 113
that were used to certify your vehicle's com ­
pliance with the US Safety Standard
¢ page 131,
-weight less than a thresho ld 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 chi ld that is about
1 year old re­
stra ined in one of the rear-facing or forward­
facing infant restraints (listed in Federal Mo­
tor Vehicle Safety Standard 208 w ith which
the Advanced A irbag System in your vehicle
was certified), the front airbag on the passen­ ger side may or may not deploy.
The
PAS SENGER AIR BAG OFF lig ht comes on
when the electron ic contro l unit detects a to ­
ta l we ight on the front passenger seat that re­
quires the front airbag to be tu rned
off. If the
PASSENGER AIR BAG OFF light does no t
come on, the fron t ai rbag on the passe nger
s ide has not been t urned
off by the contro l
u nit and can dep loy if the control unit senses
an impact that meets the cond itions stored in
its memory.
If the total weight on the front passenge r
seat is more than that of a typical
1 year-o ld,
but less than the we ight of a small ad ult, the
front a irbag on the passenger side may dep loy
(the
PASSENGER AIR BAG OFF light does not
come on) .
For example , the airb ag m ay deploy if:
- a small ch ild that is heav ier t han a typical 1
year -old chi ld is on the front passenger seat
(regard less of whether the child is in one of
the child safety seats listed
¢page 131),
-a child who has outgrown chi ld restraints is
on the front passenger seat .
If the fron t passenger airbag is turned
off, the
PASSENGER AIR BAG OFF light in the cen ter
of the instrument panel will come on and stay
on .
T he front airbag on the passenge r side may
not deploy (the PASSENGER AIR BAG OFF
light does not illuminate and stay lit) i f:
•
•

components is detected . The function of the
airbag indicator light is described in greater
deta il 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 A irbag for
the front passenger seat from doing its job in
a crash.
The f ront Ad vanc ed Airb ag S ystem
consists of the following:
- Crash sensors in the front of the veh icle that
measu re ve hicle acceleration/deceleration
to provide information to the Advanced Air­
bag System about the severity of the crash.
- An electronic control unit, with integrated
c rash sensors for front and side impacts.
T he contro l unit "decides" whether to fire
the front airbags based on the information
received from the crash sensors . The control
unit also "decides" whether the safety belt
pretensioners should be activated.
- An Advanced Airbag with gas generator for
the driver ins ide the steer ing wheel hub.
- An Advanced Airbag with gas generator in­
side the instr ument 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 information registered is sent continu­
ously to the electron ic control unit to regu­
late dep loyment of the front Advanced Air­
bag on the passenger side.
- An a irbag monitoring system and indicator
li ght in the instrument cluster
¢page 118.
-The PASSENGER AIR BAG OFF light comes
on and stays on in the center of the instru­
ment pane l
¢page 119, fig. 113 and te lls
you when the front Adv anced Airbag on the
passenge r side has been turned off.
- A senso r below the safety belt latch for the
front seat passenger to me asure the tension
on the safety belt . The tens ion on the safety
belt and the weight registered by the
weight-sensing mat help the control unit
"dec ide" whether the front airbag for the
Airbag system 11 5
front passenger seat should be turned off or
not
¢ page 109, 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 wor king
properly.
- Improper repai r or d isassembly of the
front passenge r and dr iver seat will pre­
vent the Advanced Airbag System from
functioning properly.
- Repairs to the front passenge r seat must
be pe rformed by qualified and p roperly
trained workshop personne l.
- Never remove the front passenger o r
driver seat from the vehicle .
- Never remove the upholstery from the
front passenger seat.
- Neve r d isassemble o r remove parts from
the seat or disconnec t wires from it.
- Never carry sharp objects in you r pockets
or place t hem on the seat. If the weight­
sens ing ma t in the passenge r seat is
punctured it cannot work properly .
- Neve r carry things on you r lap or carry
objects on the passenger seat. Such
items can increase the weight registered
by the weight-sensing mat and send the
wrong information to the airbag co ntrol
un it.
- Never store items under the front pas­
senger seat. Parts o f the Advanced Air­
bag System under the passenger seat
could be damaged, preventing them and
the airbag system from working proper­ ly.
- Never p lace seat covers or rep lacement
upholstery that have not been specifica l­
ly approved by Audi on the front seats.
- Seat covers can prevent the Advanced
Airbag System from recognizing chi ld
Ill>
•
•

118 Airbag sys te m
- The inflating airba g will hit the child
safety seat or infant carri er w it h great
force and w ill smash the ch ild safety seat
and child against the backrest, cente r
arm r est, door or ro of.
- Ne ver install a r earward facing child
sa fety seat on the fro nt passenger seat
unl ess the
PASSENGER AIR BAG OFF
ligh t co me s on and stays on. If the PA S­
SENGER AIR BAG OFF
ligh t does no t
come on and stay on, the inflating airbag
will hit the child safety seat or infant car ­
rier with great force and will smash the
child safety seat and child against the
backrest, door or roof. Have the airbag
system inspected immediately by your
authorized Audi dealer .
A WARNING
Objects between you and the a irbag will
increase the risk of injury in a crash by in­
terfering with the way the airbag unfolds
or by being pushed into you as the a irbag
inflates.
- Never hold th ings in your hands or on
yo ur lap when the vehicle is in use.
- Never transport items on or in the area
of the front passenge r seat. Objects
c ou ld move into the area of the front air­
bags dur ing braking or other s udden ma­
neuver and become dange rous projec ­
tiles that can cause serious personal in­
jury if the airbags inflate.
- Never place o r attach accessories or oth­
er objects (such as cup ho lders, tele­
phone brackets, large, heavy or b ulky ob­
jects) on the doors, over or near the area
marked "AIRBAG" on the steering wheel,
instrument panel, seat backrests or be­
tween those a reas and yourself. These
objects co uld cause injury in a crash, es­
pecially when the airbags inflate.
- Never recline the front passenger's seat
to transport objects. Items can also
move in to the area o f the side airb ag or
the front airbag dur ing braking or in a
sudden maneuver. Objects near the air -
-
bags can become projectiles and cause
inju ry, partic ularly when the seat is re­
clined.
A WARNING
The fine dust created when airbags deploy
can cause breathing prob lems for people
with a history of asthma or other breath­
i ng cond itions.
- To reduce the risk of breath ing problems,
those with asthma o r othe r respiratory
conditions shou ld get fresh air righ t
away by getting o ut of the ve hicle or
open ing win dows or doors.
- I f you are i n a collision in which airbags
deploy, wash your hands and fa ce with
mild soap and wate r before ea ting.
- Be ca reful not to get the dust into your
eyes, o r into any c uts or s cratches.
- If the res id ue should get into your eyes,
flush them w ith wate r.
Monitoring the
Advanced Airbag System
tii Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advan ced Airbag Sy stem: the airbag
monitoring indicator light and the
PASSEN­
GER AIR BAG OFF
light.
T he Advanced A irbag Sys tem ( incl uding the
ele ctron ic cont rol unit, sensor circ uits and sys ­
tem wir ing) is monitored continuously to
make sure that it is functioning properly
whenever the ignition is on. Eac h time you
turn on the ignition, the a irbag monitoring in­
dicator light . will come on for a few sec­
onds (self diagnostics).
The system must be inspected when the
i ndicator light•=
-does not come on when the ignition is
sw itched on,
- does not go out a few seconds after you
have switched on the ignit ion, or

-If you must install a rearward facing
child safety seat on the front passenger
seat because of exceptional circumstan­ ces and the
PA SSE NGER AI R BAG OFF
light does not appear and stay on have
the a irbag system inspected by your Audi
dealer.
- A tight tether or other strap on a rear­
ward-fac ing child restra int attached to
the front passenger seat can put too much pressure on the weight-sens ing
mat in the seat and register more weight
than is actually on the seat. The heavier
weight registered can make the system
work as though an adu lt were on the seat
and deploy the Advanced Airbag when it
must be suppressed caus ing serious or
even fatal injury to the child .
- If, in exceptional circ umstances, you
must install a forward-facing child re­
st raint on the front passenger seat, a l­
ways move the seat into its rearmost po­
sit ion in the seat's fo re and aft adjust­
ment range, as far away from the airb ag
as possib le . The backrest m ust be adjust­
ed to an upright position. Make sure that
the
PASSENGER AIR BAG OFF light
comes on and stays on all the t ime when­
ever the ignition is switched on.
A 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 air­
bag system inspected by your Aud i deal­
er before transporting anyone on the
front passenger seat.
(Di Tips
If the weight-sensing mat in the front pas­
senger seat detects an empty seat, the
front airbag on the pa ssenge r side will be
t urned off, and
PASSENGER AIR BAG OFF
w ill stay on .
Airbag system 12 1
Repair, care and disposal of the airbags
Parts of the airbag system are i nstalled at
many diffe rent p laces o n your Aud i. Insta llin g,
removing, servicing or repa iring 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 coll is ion.
T he re a re some important t hings you have to
know to make sure that the effectiveness o f
the system wi ll not be impaired and that dis­
carded components do not cause injury or pol ­
lute the environment.
A WARNING
Improper care, serv ic ing and repair proce­
dures can increase the risk of personal in­
jury and death by preventing an a irbag
from deploying when needed or deploying
an a irbag unexpec tedly:
- Never cover, obst ruct, or change the
steer ing whee l horn pad or airbag cover
or the inst rument panel or mod ify them
in any w ay .
- Never attach any objects s uch as c up
holders or telephone mountings to the
surfaces covering the a irbag un its .
- For cleaning the horn pad or instr ument
panel, use only a soft, dry cloth or one
mo istened with pla in water. Solvents or
cleaners could damage the airbag cover
or change the st iffness or strength of the
material so that the airbag cannot de­
ploy and protect properly.
- Never repair, adjust, or change any parts
of the a irbag system.
- All work on the steering wheel, instru­
ment panel, front seats or e lectr ica l sys­
tem (including the installation of audio
equ ipment, cellular telephones and CB
radios, etc.) must be performed by a
qualified technic ian who has the training
and specia l equipment necessary.
- For any work on the airbag system, we
strongly recommend that you see your
author ized Audi dealer or qualified work-
shop.
~
•
•

124 Airbag system
-in the event of a system malfunction (warn ­
ing/indicator light is on )
r=:> page 15.
.&_ WARNING
-Safety belts and the airbag system can
only provide protection when occupants
are in the proper seating position
¢page 117.
-If the airbag indicator light comes when
the vehicle is being used, have the sys­
tem inspected immediately by your au­
tho rized Aud i deale r.
How knee airbags work
The risk of injury to the leg area can be re­
duced by fully inflated knee airbags.
F ig . 115 Inflated a irbags p rotecti ng in a fro ntal coll i­
s ion
The knee airbag system has been designed so
that the airbags for the driver and front pas­
senger deploy in certain but not all frontal
coll is ions.
If the front airbags deploy, the knee airbags
also deploy in frontal collisions when the de­ p loyment threshold stored in the control unit
i s met.
When the system dep loys, the airbags fill
with a propellant gas, and inflate between the lower part of the instrument panel and the
d river and the lower part of the instrument
panel and the front passenge r<=>
page 117,
fig. 112.
Although they are not a soft pillow, they can
"cush ion" the impact and in this way they can
he lp to reduce the r isk of injury to the lowe r
extremities. All o
f th is takes place in the b link o f an eye, so
fast that many peop le don't even realize that
the a irbags have deployed. The airbags a lso
inflate with a great deal of force and it is im­
portant for occupant safety that nothing
shou ld be in their way when they deploy.
Fully inflated a irbags in combination with
proper ly worn safety belts s low down and lim­
it the occupant's forward movement and help
to reduce the risk of injury .
Important safety instructions on the
knee airbag system
Airbags are only supplemental restraints . Al­
ways wear safety belts correctly and ride in a
proper seating position.
The re is a lot that you and you r passenger
must know and do to he lp the safety belts and
airbags to prov ide s upplemen ta l pro te ct io n .
.&_ WARNING
An inflat ing knee a irbag c an cause se rious
in ju ry. Wea ring safety belts incorrectly and
improper seat ing positions increase the
risk of ser ious persona l injury and death
whenever a vehicle is being used.
- The knee airbag system cannot protect
you properly if you a re seated too close
to any of the airbag locat ions. When ad­
justing their seat pos itions, it is impor­
tant that bot h the driver and the front
passenger keep the ir upper bod ies and
knees at the following minimum safe
d istances:
- at least 10 inches (25 cm) between the
chest and the steering wheel/inst ru­
ment panel.
- at least 4 inches (10 cm) between the
knees and the lower part of the instru­
ment panel.
- The risk of personal inj ury increases if
you lean forward or to the s ide, or if the
seat is improperly positioned and you are
not wearing yo ur safety belt . The risk in­
creases even more should the a irbag de­
p loy .