How knee airbags work
Applies to vehicles: with knee airb ags
The risk of injury to the leg area can be re
duced by fully inflated knee airbags.
Fig. 164 Inflated airbags protecting in a frontal coll i
sio n
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
collisions .
If the front airbags deploy, the knee airbags
also deploy in frontal collisions when the de ployment 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 152,
fig. 161.
Although they are not a soft pillow, they can
"cush ion" the impact and in this way they can
help to reduce the risk of injury to the lower
extremities.
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 im
portant for occupant safety that nothing
should be in their way when they deploy.
Fully inflated airbags in combination with
properly worn safety belts slow down and lim
it the occupant's forward movement and help
to reduce the risk of injury.
Airbag system 161
Important safety instructions on the
knee airbag system
Applies to vehicles: wit h knee airbags
Airbags are only supplemental restraints . Al
ways wear safety belts correctly and ride in a
proper seating position.
There is a lot that you and your passengers
must know and do to help the safety belts and
airbags to provide supplemental protection.
_&. WARNING .. -
An inflating knee airbag can cause serious injury. Wearing safety belts incorrectly and
imprope r 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 a re seated too close
to any of the airbag locations. When ad
justing their seat positions, it is impor
tant that both the driver and the front passenger keep their upper bodies and
knees at the following minimum safe
distances:
- at least 10 inches (25 cm) between the
chest and the 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 personal injury increases if
you lean forward or to the side, or if the seat is improperly positioned and you are
not wearing your safety belt . The risk in
creases even more should the airbag de
ploy.
- Always make sure that the knee airbag
can inflate without interference. Objects
between you and the airbag can increase
the risk of injury in an accident by inter
fering 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
162 Airbag system
of the passenger seat. If the airbag de
ploys, this can resu lt in serious or fata l
injuries.
- Never carry objects of any kind in the
footwell area in front of the driver's or
passenger's seat. Bulky objects (shop
p ing bags, for examp le) can interfere
with or p revent proper dep loyment of
the airbag . Small objects can be
thrown through the vehicle i f the a ir
bag deploys and injure you or yo ur pas
sengers.
- Make sure there are no cra ck s, deep
scratches or ot her damage in the area of
the instrument pane l where the knee air
bags are located .
- If children are incorrect ly sea ted, their
risk of inj ury i ncreases in a collision
<=> page 168, Child Safety.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fi g. 165 Side a irbag loca tion in the dr iver 's seat
The s ide airbags are lo cated i n the sides of the
front seat ba ckrests
<=> fig . 165 and the rear
backrest facing the doors. They are identified
by the word "AIRBAG" .
The s ide airbags installed for the front seating
positions have been designed a nd cer tified to
he lp reduce the risk of injury that can be
caused by airbags when they inflate, particu
larly when the occupant sitting next to it is
not seated properly. The side airbag for the
front passenger seat can be used with proper- ly installed child restraints. Please be sure to
read the important information and warnings
whenever using a child restraint in a vehicle:
Safety be lts <=>
page 133, Airbag system
<=>page 142, Child safety <=> page 168.
The side airbag system ba sicall y consi st s o f:
- t he ele ctron ic cont ro l modu le and external
side impact sensors
- t he two a irbags located in the s ides of the
front backrests and the two a irbags* located
in the rear backrest
- the airbag warning light in the ins trument
cl uster.
The airbag system is mon itored electronically
to make ce rtain that it is functioning p roperly
at all times. Each time you switch on the ign i
t io n, the airbag system ind icator light will
come on for a few seconds (se lf diagnostics) .
The side airbag system supplements the safe
ty be lts and can he lp to red uce the risk of in
j u ry to the driver's, front and rear passenger's
u pper torso on the side of the veh icle that is
struck in a side collision. The airbag dep loys
only in side impacts and only when the vehicle
acce lerat ion reg istered by the control unit is
high enough. If this rate is be low the refer
ence value programmed into the control unit,
the side airbags will not be triggered, even
though the car may be badly damaged as a re su lt of the collision .
It is not possib le to de
fine an airbag triggering range th at will cover
every possib le ang le of impact, s ince the cir
cumstances will vary cons iderably between
one collision and another. Important factors
include, for example, the nature (hard or soft)
of the impacting object, the angle of impact,
vehicle speed, etc.
<=> page 164 , Important
safety instructions on the side airbag system .
Aside from their normal safety function, safe
ty belts work to help keep the driver or front
passenger 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 oc-
cupant restra int system in your vehicle . .,,.
164 Airbag system
Important safety instructions on the
side airbag system
Airbags are only supplemental restraints. Al
ways 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 pro
vide supplemental protection.
& WARNING
An inflating side airbag can cause serious
or fatal injury. Improperly wearing safety
belts and improper seating positions in
crease 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
supplemental 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 replace
ment upholstery over the front seat
backs that have not been specifically
approved by Audi.
- Never use additional seat cushions that
cover the areas where the side airbags
deploy.
- Damage to the original seat covers or
to the seam in the area of the side air
bag module must always be repaired
immediately by an authorized Audi
dealer. -
Objects between you and the airbag can
increase the risk of injury in an accident
by interfering with the way the airbag
unfolds or by being pushed into you as
the airbag inflates.
- Never place or attach accessories or
other objects (such as cup holders, tel
ephone brackets, or even large, bulky
objects) on the doors, over or near the
area marked "AIRBAG" on the seat backrests.
- Such objects and accessories can be come dangerous projectiles and cause
injury when the supplemental side air
bag deploys.
- Never carry any objects or pets in the
deployment space between them and
the airbags or allow children or other passengers to travel in this position.
-Always use the built-in coat hooks only for lightweight clothing. Never leave any
heavy or sharp-edged objects in the
pockets that may interfere with side air
bag deployment and can cause personal
injury in an accident.
- Always prevent the side airbags from be
ing damaged by heavy objects knocking
against or hitting the sides of the seat
backs.
- The airbag system can only be triggered
once. If the airbag has been triggered,
the system must be replaced by an au
thorized Audi dealership.
- Damage (cracks, deep scratches etc.) to
the original seat covers or to the seam in
the area of the side airbag module must always be repaired immediately by an au
thorized Audi dealer.
- If children are seated improperly, their
risk of injury increases in the case of an
accident
~ page 168, Child Safety .
-Never attempt to modify any compo
nents of the airbag system in any way .
- In a side collision, side airbags will not
function properly if sensors cannot cor rectly measure increasing air pressure in-
side the doors when air escapes through ..,.
168 Child Saf ety
Child Safety
Important things to
know
Introduction
The rear seat is generally the safest place in a
collision.
The physical principles of what happens when
your veh icle is in a crash app ly also to chi ldren
~ page 134, What happens to occupants not
wearing safety belts?.
But unlike adults and
teenagers, their muscles and bones are not
fu lly developed. In many respects children are
at greater risk of serious injury in crashes than
adults.
Because children's bodies are not fully deve l
oped, they require restraint systems especial
ly designed for their size, weight, and body
structure. Many countries and all states of the
United States and provinces of Canada have
laws requiring the use of approved child re
straint systems for infants and small ch ildren.
In a fronta l crash at a speed of 20 -35 mph
(30-56 km/h) the forces acting on a 13-pound
(6 kg) infant w ill be more than 20 t imes the
weight of the child. This means the weight of
the child would suddenly be more than 260 pounds (120 kg). Under these conditions,
only an appropriate ch ild restraint properly
used can reduce the risk of ser ious injury.
Child restraints, like adult safety belts, must
be used properly to be effective. Used improp
erly, they can increase the risk of serious in
jury in an accident.
Consult the child safety seat manufacturer's instructions in order to be sure the seat is
right for your ch ild's size ~
page 172, Impor
tant safety instructions for using child safety
seats.
Please be sure to read and heed all of
the important information and WARNINGS
about child safety, Advanced A irbags, and the
installation of child restraints 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 re- straints are on the front passenger seat
. Be
cause of the large amount of important infor
mation, we cannot repeat it all here . We urge
you to read the detailed information in th is
owner's manual about airbags and the Ad
vanced Airbag System in your vehicle and the
very important information about transport
ing children on the front passenger seat.
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
-Accident statistics have shown that chil
dren are generally safer in the rear seat
area than in the front seating position.
Always restrain any child age 12 and un
der in the rear.
- All vehicle occupants and especially chil
dren must be restrained properly when
ever riding in a vehicle. An unrestrained
or improperly restrained chi ld could be
injured by str iking the i nterior or by be
ing ejected from the vehicle during a
sudden maneuver or impact. An unre
strained or improperly restrained chi ld is
also at greater risk of injury or death
through contact with an inflating airbag.
- A suitable chi ld restraint properly instal
led and used at one of the rear seating positions provides the highest degree of
protection for infants and small children
in most accident situations.
A WARNING ,_
Children on the front seat of any car even
with Advanced Airbags can be ser iously in
jured or even killed when an airbag in
flates. A child in a rearward-facing child
safety seat installed on the front passen
ger seat will be seriously injured and can
be killed if the front airbag inflates.
- 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.
II>-
-Always install rear-facing child safety
seats on the rear seat.
-If you must install a rearward facing
child safety seat on the front passenger
seat in exceptional circumstances and
the
PASSENGER AIR BAG OFF light does
not come on and stay on, immediately
install the rear-facing child safety seat in
a rear seating position and have the air
bag system inspected immediately by
your Audi dealer.
_& 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 follow
ing special precautions to be taken:
- Always make sure that the forward-fac
ing seat has been designed and certi
fied by its manufacturer for use on a
front passenger seat with a front and side airbag.
- Always carefully follow the manufac
turer's instructions provided with the
child seat or infant carrier.
- Never install a child restraint without a
properly attached top tether strap if
the child restraint manufacturer's in
structions require the top tether strap
to be used.
- Never put the forward-facing child re
straint up against or very near the in
strument panel.
- Always set the safety belt upper an
chorage to the adjustment position
that permits proper installation in ac
cordance with the child restraint manu
facturer's instructions.
- Always move the passenger seat into
its rearmost position in the seat's fore
and aft adjustment range, as far away
.
Child Safety 169
from the airbag as possible before in
stalling the child restraint. The back
rest must be adjusted to an upright po
sition.
- Always make sure that nothing pre
vents 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 in
fluence 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
heater for child seats) on the front pas
senger seat if the device is connected
to the 12-volt socket or the cigarette
lighter socket.
- If a seat heater has been retrofitted or
otherwise added to the front passen ger seat, never install any child re
straint system on this seat.
- 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.
- Always make sure that the
PASSENGER
AIR BAG OFF
light comes on and stays
on all the time whenever the ignition is
switched on.
- If the PASSENGER AIR BAG OFF light
does not come on and stay on, immedi
ately install the forward-facing child
seat in a rear seating position and have
the airbag system inspected by your
authorized Audi dealer.
- 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.
~
•
•
1 70 Child Safety
-Always read and heed all WARNINGS
whenever using a child restraint in ave
hicle
q page 133, Safety belts,
q page 142, Airbag system and
q page 168, Important things to
know.
(D Tips
Always replace child restraints that were
installed in a vehicle during a crash. Dam
age to a child restraint that is not visible
could cause it to fail in another collision
situation.
Advanced front airbag system and children
Your vehicle is equipped with a front "Ad
vanced Airbag System" in compliance with United States Federal Motor Vehicle Safety
Standard (FMVSS) 208 as applicable at the
time your vehicle was manufactured.
The Advanced Airbag system in your vehicle
has been certified to meet the "low-risk" re
quirements for 3- and 6-year old children on
the passenger side and small adults on the
driver side. The low risk deployment criteria
are intended to reduce the risk of injury
through interaction with the 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 "sup
pression" requirements of the Safety Stand
ard, to turn
off the front airbag for infants up
to 12 months who are restrained on the front
passenger seat in child restraints that are list
ed in the Standard .
Even though your vehicle is equipped with an
Advanced Airbag system, all children, espe
cially those 12 years and younger, should al
ways ride in the back seat properly restrained
for their age and size. The airbag on the pas
senger 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 for
ward -facing child safety seat. It can be a very dangerous place
for an infant or a larger child
in a rearward-facing seat.
The vehicle's Advanced Airbag System has a
capacitive passenger detection system in the
front passenger seat cushion that can detect
the presence of a baby or a child in a child re
straint system on this seat.
The capacitive passenger detection system
registers the changes that result in an electri
cal field when a child, a child restraint, and a
baby blanket are on the front passenger seat .
The change in the measured capacitance due
to the presence of a child, a child restraint,
and a baby blanket on the front passenger
seat is related to the child restraint system
resting on the seat. The measured capacitance
of a child restraint system varies depending
on the type of system and specific make and
model.
The electrical capacitance of the various
types, makes, and models of child restraints
specified by the U.S.National Highway Traffic
Safety Administration (NH TSA) in the relevant
safety standard are stored in the Advanced
Airbag System control unit together with the capacitances typical of infants and a 1-year
old child. When a child restraint is used on the
front passenger seat with a typical 1 year-old infant, the Advanced Airbag System compares
the capacitance measured by the capacitive passenger detection system with the data
stored in the electronic control unit. Child restraints and Advanced front
airbag system
Regardless of the child restraint that you use,
make sure that it has been certified to meet
United States Federal Motor Vehicle Safety
Standards and has been certified by its manu
facturer for use with an airbag. Always be sure
that the child restraint is properly installed at
one of the rear seating positions. If in excep
tional circumstances you must use it on the
front passenger seat, carefully read all of the
information on child safety and Advanced Air-
bags and heed all of the applicable .,..
WARNINGS. Make certain that the child and
chi ld restraint are correct ly recognized by the
capacitive passenger detect ion system in the
front passenger seat, that the front passenger
airbag is turned
off, and that the airbag status
is always correct ly signaled by the
PASS EN
GER AIR BAG OFF
light .
Many types and models of child restra ints
have been available over the years, new mod
e ls are introduced regular ly incorporating new
and improved designs a nd older models are
taken out of production. Child restraints are not standardized. Ch ild restra ints of the same
type typically h ave different we ights and s izes
and d ifferen t "footprints", the size and shape
of the bottom of the child restraint that sits
on the seat, when they are installed on a vehi
cle seat. These differences make it virtually
imposs ible to certify compliance with the re
qu irements for advanced airbags w ith each
and every child restraint that has ever been
sold in the past or will be sold ove r the course
of the useful life of yo ur vehicle.
For this reason, the United States Nat ional
H ighway Traffic Safety Administration has
published a list of specific type, makes and
models of child restraints that must be used
to ce rtify compliance of t he Advanced A irbag
System in yo ur vehicle with the supp ress io n
requirements of Federa l Motor Vehicle Safety
Standard 208 . These child restraints are:
Subpart A -Car bed child restraints
Model Manufactured on or
after
Ange
l Guard Ange l September 25, 200 7
Ride AA2403 FOF
Subpart B -Rear -facing child restra ints
Model Manufactured on or
after
Century SmartFit December 1, 1999
4543
Cosco Arriva September 25, 200 7
2 2-0 13 PAW an d base
22-999WHO
Child Sa fet y 1 71
Model Manufactured on or
after
Evenflo Discovery Ad- December 1, 1999
just Right 212
E venflo First Choice December 1, 1999
204
Graco Infant 8457 December 1, 1999
Graco Snug ride September 25, 2007 Peg Perego Pr imo Vi- September 25, 2007
aggio SI P IMUNOOUS
Subpart C -Forw ard-facing and
convertible child restraints
Model Manufactured on or
after
Britax Roundabout September 25, 2007
E9L02xx
Cosco Touriva 025 19 December 1, 1999
Cosco Summit Deluxe September 25, 2007
High Back Booster
22-262
Cosco H igh Back September 2 5, 2007
Booster 22- 209
Evenflo Tribute V September 25, 2007
379xxxx
Evenf lo Meda llion December 1, 1999
254
E venflo Generations September 2 5, 200 7
35 2xxxx
Graco ComfortSport September 25, 2007
Gr aco Todd ler Safety September 25, 2007
Seat Step 2
Graco P lati num Cargo September 25, 2007
A WARNING
To reduce the risk of ser ious injury, ma ke
sure th at the
PASSENGER AIR BAG OFF
light comes on and st ays on wheneve r a
chi ld restraint is installed on the front pas
senger seat and the ignition is switched
on.
- Ta ke the chi ld restraint
off the front pas
senger seat and install it properly at one
of the rear seat positions if the
PASSEN-
GER AIR BAG OFF
light does not stay on. ~
•
•
172 Child Safety
-Have the airbag system inspected by
your authorized Audi dealer immediate
ly.
The child seats listed in categories A to C have been statically tested by Audi only for
the Advanced Airbag function.
Important safety instructions for using
child safety seats
Correc t use of child safety seats substantially
reduces the risk of injury in an accident!
As the driver, you are responsible for the safe
ty of everybody in the vehicle, especially chil
dren :
• Always use the right child safety seat for
each child and always use it properly
r:::;, page 174.
• Always carefully follow the child safety seat
manufacturer's instructions on how to route
the safety belt properly through the child
safety seat.
• When using the vehicle safety belt to install
a child safety seat, you must first activate
the convertible locking retractor on the
safety belt to prevent the child safety seat
from moving
r:;, page 179.
• Push the child safety seat down with your
full weight to get the safety belt really tight so that the seat cannot move forward or
sideways more than one inch (2.5 cm) .
• Secure unused safety belts on the rear seat
r:;,page 174.
Always remember: Even though your vehicle is
equipped with an Advanced Airbag system, all
children , especially those 12 years and young
er, should always ride in the back seat proper
ly restrained for their age and size.
.&_ WARNING
Not using a child safety seat, using the
wrong child safety seat or improperly in stalling a child restraint increases the risk
of serious personal injury and death .
-
-All vehicle occupants and especially chil
dren must always be restrained properly
whenever riding in a vehicle.
- An unrestrained or improperly restrain
ed child can be injured or killed by be
ing thrown against the inside of the ve
hicle or by being ejected from it during
a sudden maneuver or impact.
- An unrestrained or improperly restrain
ed child is at much greater risk of injury
or death by being struck by an inflating
airbag.
- Commercially available child safety seats
are required to comply with U.S. Federal
Motor Vehicle Safety Standard (FMVSS)
213 (in Canada CMVSS 213).
- When buying a child restraint, select
one that fits your child and the vehicle.
- Only use child restraint systems that
fully contact the flat portion of the
seat cushion . The child restraint must
not tip or lean to either side. Audi does
not recommend using child safety
seats that rest on legs or tube -like
frames. They do not provide adequate
contact with the seat.
- Always heed all legal requirements per
taining to the installation and use of
child safety seats and carefully follow
the instructions provided by the manu
facturer of the seat you are using .
- Never allow children under 57 inches
(1.45 meters) to wear a normal safety
belt . They must always be restrained by a
proper child restraint system. Otherwise,
they could sustain injuries to the abdo
men and neck areas during sudden brak
ing maneuvers or accidents.
- Never let more than one child occupy a
child safety seat.
- Never let babies or older children ride in
a vehicle while sitting on the lap of an
other passenger.
- Holding a child in your arms is never a
substitute for a child restraint system .
- The strongest person could not hold
the child with the forces that exist in