2014 AUDI TT ROADSTER steering wheel

102 Safet y belt s
Why safety belts?
Frontal collisions and the law of physics
Frontal crashes create very strong forces for
people riding in vehicles .
Fig. 10 4 Unbe lted occupa nts in a vehicle heading for a
wall
Fig . 105 The ve hicle c ras hes into t he wa ll.
The physical principles are simp le. Both the
vehicle and the passengers possess energy
which varies w ith veh icle speed and body
weight . Engineers call th is energy ''kinetic en ­
ergy ."
The higher the speed of the vehicle and the
greater the vehicle's weight, the more energy
that has to be "absorbed" in the crash .
Vehicle speed is the most significant factor . If
the speed doub les from 15 to 30 mph (25 to
50 km/h) , the energy increases 4 t imes!
Because the occupants in this vehicle are not
using safety belts ¢
fig. 104, they will keep
mov ing at the same speed the vehicle was
mov ing just before the crash, unti l something
stops them -here, the wall
¢ fig . 105 .
The same pr inc iples apply to people sitting in
a vehicle that is involved in a frontal collision .
Even at city speeds of 20 to 30 mph (30 to 50
km/h), the forces act ing on the body can reach one ton (2,000 lbs, or 1,000 kg) or
more. At h
igher speeds, these forces are even
greater.
People who do not use safety belts are also
not attached to their vehicle. In a frontal colli ­
sion they wi ll also keep moving forward at t he
speed their vehicle was travell ing just before
the crash. Of course, the laws of physics don't
just app ly to frontal collisions, they determine
what happens in all kinds of acc idents and col ­
lis ions .
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop
themselves from flying forward and being in­
jured or killed . Always wear your safe ty belts!
Fig . 106 A dr iver not wea ring a safety belt is vio le n tl y
t hrown forward
Unbelted occ upants a re not able to resist the
tremendous forces of impact by hold ing tight
or bracing themse lves. Without the benefit of
safety restra int systems, the unrestrained oc­
cupant will slam violently into the steering
wheel, instr ument panel, w indshield, or what­
ever else is i n the way ¢ fig. 106. This impact
with the veh icle inte rior has all the energy
they had j ust before the c rash.
Never rely on airbags alone for protection .
Even when they deploy, a irbags provide only
additional protection . Airbags a re not sup ­
posed to deploy in all k inds of accidents. A l­
t h ough your Aud i is equipped wi th airbags, all
vehicle occupants, including the driver, must
wear safety be lts cor rectly in order to m ini ­
mize the risk of severe injury or death in a
crash .

Airbag system Important things to know
Importance of wearing safety belts and
sitting properly
Airbags are only supplemental restraints. For
airbags to do their job, occupants must al­
ways properly wear their safety belts and be
in a proper seating position.
For your safety and the safety of your passen­
gers, before driving off, always:
"" Adjust the driver's seat and steering wheel
properly¢
page 93,
"" Adjust the front passenger's seat properly
¢page 61,
""Wear safety be lts properly ¢ page 103,
""Always properly use the proper child re-
straint to protect children
r::::> page 130.
In a collision airbags must inflate within the
blink of an eye and with considerable force.
The supplemental airbags can cause injuries if
the driver or the front seat passenger are not
seated properly . Therefore in order to help the
airbag to do its job, it is impo rtant, both as a
d river and as a passenger to s it properly at all
times.
By keeping room between your body and the
steer ing whee l and the front of the passenger
compartment, the airbag can inflate fully and
comp lete ly and provide supplemental protec­
tion in certain frontal collisions
r::::> page 93,
Proper occupant seating positions.
F or details
on the operation of the seat adjustment con­
trols ¢
page 61 and ¢ page 62.
It's especially important that children a re
properly restrained
r::::> page 130.
There is a lot that the driver and the passen­
ger can and must do to help the individua l
safety features installed in your Aud i work to­
gether as a system.
Proper seating pos ition is important so that
the front airbag on the driver side can do its
job. If you have a physical impairment or con-
Airbag system 109
dition that prevents you from sitting properly
on the driver seat with the safety belt properly
fastened and reach ing the pedals, or if you
have concerns with regard to the function or
operation of the Advanced Airbag System,
please contact your authorized Audi dealer or
qualified workshop, or call Audi Customer Re­
lations at 1-800-822-2834 for poss ible modi­
fications to your vehicle.
When the airbag system dep loys, a gas gener ­
ator will fill the a irbags, break open the pad­
ded covers, and inflate between the steer ing
whee l and the driver and between the instru­
ment panel and the front passenger. The air­
bags will deflate immediately after deploy­
ment so that the front occupants can see
through the windshield again without inter­
ruption.
A ll of th is takes place in the blink of an eye, so
fast that many people don't even realize that
the airbags have deployed. The airbags a lso
inflate with a great dea l of force and nothing
should be in their way when they deploy.
Front airbags in combination with properly
worn safety belts slow down and lim it the oc­
cupant's forward movement. Together they
help to prevent the driver and passenger from
hitt ing parts of the inside the vehicle while re­
ducing the forces acting on the occupant 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 will not inflate in all fronta l
collisions . The triggering of the airbag system
depends on the vehicle dece leration rate
caused by the co llision and registered by the
electronic control unit. If th is rate is below
the reference value programmed into the con­
trol unit, the airbags will not be triggered,
even though the car may be badly damaged as
a result of the collision . Vehicle damage, re­
pair costs or even the lack of veh icle damage
is not necessarily an indication of whether an
airbag shou ld inf late or not .
It is not possible to define a range of vehicle
speeds that will cover every possible kind and ..,. •
•

110 Airbag system
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¢
page 101.
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.
- To reduce the risk of injury when an air­
bag inflates, always wear safety belts
properly
c::> page 104, 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
improperly restrained in the vehicle. Ad­
just the front seats properly.
- Always sit as far as possible from the steering wheel or the instrument panel
¢ page 93, 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.
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.
Child restraints on the front seat - some
important things to know
.. Be sure to read the important information
and head the WARNINGS for important de­
tails about children and Advanced Airbags
¢page 130.
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 safe­
ty 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 Require­
ments of United States Federal Motor Vehicle .,.

Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat
occupants .
Fig. 112 Location of dri ver airbag: in steering whee l
Fig. 113 Location of front passe nger's ai rb ag : in the in­
strument panel
Your vehicle is equipped with an "Advanced
Airbag System" in compliance with United
States Federal Motor Vehicle Safety Standard
(FMVSS) 208 as applicable at the time your
vehicle was manufactured . The 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 steering
wheel hub¢
fig. 112 and the airbag for the
front passenger is in the instrument panel
¢fig. 113. 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
Airbag system 113
detailed information about airbags, safety
belts and child safety in this and the other
chapters that make up the owner's literature .
Please be sure to heed the WARNINGS - they
are extremely important for your safety and
the safety of your passengers, especially in ­
fants and small children.
A WARNING ,.;;
Never rely on airbags alone for protection .
- Even when they deploy, airbags provide
only supplementa l protection.
- Airbag work most effectively when used
with properly worn safety belts.
- Therefore, always wear your safety belts
and make sure that everybody in your ve­
hicle is properly restrained.
A WARNING
A person on the front passenger seat, es­
pecially infants and small children, will re­
ceive serious injuries and can even be kil­
led by being too close to the airbag when
it inflates .
- Although the Advanced Airbag System in
your vehicle is designed to turn off the
front passenger airbag if an infant or a
small child is on the front passenger
seat, nobody can absolutely guarantee
that deployment under these special
conditions is impossible in all conceiva­
ble situations that may happen during
the useful life of your vehicle .
- 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 condit ions for airbag de­
ployment 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
Ill>

-The inflating airba g will hit the child
safety seat or infant carrier wit h great
f o rce and w ill smash t he ch ild safety seat
and child aga inst the backrest, center
arm rest, d oor or roof.
- Never install a r earward facing child
sa fety seat on the front pass eng er s eat
unless the
PASSENGER AIR BAG OFF
light c omes on and stays on. If the PAS­
S ENGER 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
your lap when the vehicle is in use .
- Never transport items on or in the area
of the front passenge r seat. Objects
cou ld move into the area of the front air­
bags dur ing braking or other s udden ma­
neuver and become dangerous projec ­
ti les 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 could 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 of the side airbag or
the front airbag dur ing braking or in a
sudden maneuver . Objects near the air -
-
Airbag system 119
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
ing cond itions.
- To reduce the risk of breath ing problems,
those with asthma o r other respiratory
conditions shou ld get fresh air r ight
away by getting o ut of the veh icle or
open ing windows or doors.
- If you are in a collision in which airbags
deploy, was h 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 cuts or sc ratches .
- If the resid ue should get into your eyes,
f lush them w ith wate r.
Monitoring the
Advanced Airbag System
t!~ Airbag monitoring indicator light
Two separate indicators monitor the function
of the Advan ced Airbag System: the airbag
monitoring indi cator light and the
PASSEN ­
GER AIR BAG OFF
light.
T he Advanced A irbag System (including the
electron ic co ntro l unit, sensor circu its and sys­
tem wir ing) is monitored con tinuously to
make sure that it is functioning properly
whenever the ignition is on. Each time you
turn on the ignition, the a irbag mon itoring in­
dicator light
I will come on for a few seconds
(self diagnostics).
The sy stem mu st be in spected when th e
indicator light
I :
- does not come on when the ignition is
sw itched on,
- does not go out a few seconds after you
have switched on t he ignition, or
•
•

122 Airbag sys te m
- If you must install a rearward facing
child safety seat on the front passenger
seat because of exceptional circumstan­ ces and the
PA SSEN GE R AIR BA G 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 circumstances, you
must install a forward-facing child re­
straint on the front passenger seat, al­
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 airbag
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 inspec ted by your Audi deal­
er before transporting anyone on the
front passenger seat.
(D Tips
If the weight-sensing mat in the front pas­
senger seat detects an empty seat, the
front airbag on the passenge r side will be
turned off, and
PASSENGER AIR BAG OFF
w ill stay on.
Repair, care and disposal of the airbags
Pa rts of the airbag system are i nstalled at
many diffe rent p laces o n your Aud i. Insta llin g,
removi ng, servicing or repa iring a part in an
area of the veh icle 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
k now to make sure that the effectiveness o f
t h e system wi ll not be impaired and that dis­
carded components do not cause injury or pol ­
l ute the environment.
A WARNING
Improper care, serv ic ing and repair proce­
dures can increase the risk of personal in­
j u ry and death by prevent ing an a irbag
from deploying when needed or dep loying
an a irbag unexpec tedly:
- Never cover, obst ruct, or change the
steer ing whee l horn pad or ai rbag cover
or the in st rument panel or mod ify them
in any way .
- Never attach any obje cts s uch as c up
holders or telephone mountings to the
sur faces covering the a irbag un its.
- For cle aning the horn pad or instr ument
panel, use only a soft, dry clo th or one
moistened with pla in water. Solvents o r
cleaners could damage the airbag cover
or change the st iffness or strength of the
material so that the airbag cannot de­
p loy 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, cellu lar telep hones and CB
radios, etc.) must be performed by a
qualified technic ian who has the training
and specia l equipment ne cessary.
- For any wo rk on the airbag system, we
strongly recommend that you see your
author ized Audi dealer or qualified work-
shop. ..,.

124 Airbag system
with the safety belt buckles so that the sen­
sors can send the correct information about
safety belt use to the electron ic control unit.
,&. 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 suspens ion components
that do not have the same performance
characteristics as the components origi­
nally insta lled on your vehicle.
- Never use ti re-rim combinat ions that
have not been approved by Audi.
,&. 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 modu le and prevent the Advanced A ir ­
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 airbags
The knee airbag system can provide supple­
mental protection to properly restrained
front seat occupants.
Fig. 116 Driver's airbag
The driver knee airbag is in the instrument
panel underneath the steering wheel
~ fig. 116, the airbag for the passenger is at
about the same height in the instrument pan­
el underneath the glove compartment .
T he knee airbag offe rs addi tional p rotec tion
to the driver 's and passenger's knees and up­
per and lower thigh areas and supplements
the protection by the safety belts.
If t he front a irbags dep loy, the k nee a irbags
also dep loy in frontal collisions when the de­
ployment threshold stored in the control unit
is met
~ page 118, More important things to
know about front airbags .
In addition to their normal sa fety function,
safety belts help keep the driver or front pas­
senger in position in a fronta l collision so that
the a irbags can provide supplemental protec­
t ion.
The airbag system is not a substitute for your
safety belt. Rather, it is part of the overa ll oc ­
cupant restraint system in your vehicle. A l­
ways remember that the airbag system can
only he lp to protect you if you are wearing
you r safety belt and wea ring it properly. This
is why you should a lways wear your safety
belt, not just because the law requi res you to
do so~
page 101, General notes.
The safety belt buckle for the driver and front
seat passenger have switches that tell the air­
bag control module if the safety bel t is being
u sed or not .
If the safety belt is be ing used,
t h e knee a irbag w ill deploy at a s light ly h igher
rate of dece leration than if the belt is not be ­
ing used. Therefore, in a particular co llision, it
is possib le that an airbag will not dep loy 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 .
Remember too, airbags will deploy on ly once
and only in certa in kinds of accidents - your
safety belts are always there to offer protec­
t ion in those accidents in which airbags are
not supposed to deploy o r whe n they have al­
ready dep loyed, for example when your vehi­
cl e s trikes or is st ru ck by ano ther after the
first collision . ..,.

126 Airbag system
Important safety instructions on the
knee airbag system
Airbags are only supplemental restraints. Al­
ways wear safety bel ts 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
a irbags to provide supp lemental protection.
.&_ WARNING
An inflating knee airbag can cause serious
injury. Wearing safety belts inco rrectly and
improper seating positions increase the
r isk of serious personal injury and death
whenever a veh icle is being used.
-
- The knee airbag system cannot protect
you properly if you are seated too close
to any of the airbag locations. When ad­
just ing their seat positions, it is impor­
tant that both the driver and the front
passenger keep their upper bodies and
knees at the fo llowing min imum safe
distances:
- at least 10 inches (25 cm) between the
chest and t he steering wheel/ instru­
ment panel.
- at least 4 inches (10 cm) between the
knees and the lower part of the instru­
ment panel.
- The risk of persona l injury increases if
you lean forward or to the side, or if the
seat is imp roperly posit ioned and you are
not wearing your safety belt. The r isk in­
creases even more should the airbag de­
ploy.
- Always make sure that the knee a irbag
c an in flate without interference. Obje cts
between you and the airb ag can increase
the risk of inju ry in an acc iden t by inter ­
f ering with the way the airbag dep loys or
by being pushed into you as t he a irbag
dep loys .
- Never let anybody, especially ch ild ren
or an imals ride in the footwe ll in front
of the passenger seat.
If the airbag de- ploys, this can result in serious or fatal
injur
ies.
- Never ca rry objects of any kind in the
footwell area in front of the dr iver's or
passenger 's seat. Bulky objects (shop­
ping bags, for example) can interfere
with or prevent proper deployment of
the a irbag. Small objects can be
th rown thro ugh the ve hicle if th e air­
bag deploys and injure yo u or your pas­
sengers.
- Make sure there are no cracks, deep
scr atc hes or o ther dam age in the area of
the ins trumen t panel where the knee a ir­
bags are lo cated .
- If chi ld ren are incorrectly se ated, their
ris k of injury increases in a co llision
~page 130, Child Safety.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained front seat
occupants.
Fig . 11 8 Side airb ag locat ion in th e drive r's seat
The side airbags are loca ted in the sides of t he
fron t seat b ackrests
q fig. 118 fa cing the
doo rs . They are identif ied by the word "A IR­
BAG".
Th e side airbag sy stem ba sic ally consi st s of:
- the electron ic contro l module and external
side impact sensors
- the two side airbags located in the sides of
the front backrests
- the airbag warning light in the instrument
cluster .