2009 AUDI S8 warning light

• in side collisions when the acceleration measured by the sensor
is too low,
• in front -end collisions,
• in rear-end collisions,
• in rollovers.
& WARNING
• Safety belts and the airbag system will only provide protection
when occupants are in the proper seating position
=> page 86,
"General recommendations" .
• If the airbag indicator light comes on when the vehicle is being
used, have the system inspected immediately by your authorized
Audi dealer . The side curtain airbag may not work properly even
when the vehicle acceleration in a side collision is high enough to
activate the airbag.
c:J
How s ide curtain airbags work
Side curtain airbags can work together with side airbags
to help reduce the risk of head and upper torso injuries for
occupants who are properly restrained.
Safety first
Fig. 241 Illustration o f
prin ciple: Inflated side
c urtain airbags on the
left side
Airbag system
The side curtain airbags inflate between the occupant and the
windows on the side of the vehicle that is struck in a side collision
=> fig. 241 .
When the system is triggered, the side curtain airbag is filled with
propellant gas and breaks through a seam above the front and rear
side windows identified by the AIRBAG label. In order to help
provide this additional protection, the side curtain airbag must
inf late within the blink of an eye at very high speed and with great
f orce . The side curtain airbag could injure you if your seating posi­
tion is not proper or upright or if items are located in the area where
the supplementa l side curtain airbag inflates . This applies espe ­
cially to children=>
page 245.
Although they are not a soft pil low, side curtain airbags can
"cushion" the impact and in this way they can help to reduce the risk
of injury to the head and the upper part of the body.
A fine dust may develop when the airbag deploys. This is quite
normal and does not mean there is a fire in the vehic le .•
Important safety instructions on the side
curtain airbag system
Airbags are only supplemental restraints. Always prop­
erly wear safety belts and ride in a proper seating posi­
tion.
There is a lot that you and your passengers must know and do to
help the safety belts and airbags do the ir job to provide supple­
mental protection.
& WARNING
Improperly wearing safety belts and improper seating positions
increase the risk of serious personal injury and death whenever a
vehicle is being used. •
Vehicle care I I irechnical data

___ A_ ir_ b_ a-g _ s_y _s_ t_ e_ m _________________________________________________ _
& WARNING (continued)
• Never let occupants place any parts of their bodies in the area
from which the side curtain airbags inflate .
• Always make sure that the side curtain airbags can inflate
without interference . Unsuitable accessories fitted inside the
expansion range of a side curtain airbag can dangerously interfere
with its function. A deploying head airbag develops enough force
to catapult any p iece of add-on component out of its path of infla­
tion and into the passenger compartment. An occupant hit by such a projectile can suffer serious injury or death
=> page 385 ,
"Technical Modifications" .
• Do not swivel the sun visors to the side if you have any objects
clipped onto them (for example pens). If the airbag should deploy ,
you could be injured by these objects .
• 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 airbag deployment and can cause personal injury in
an accident .
• Never use hangers to hang clothing from the hooks .
• Only use factory -installed sun shades or, in the case of shades
installed after the vehicle leaves the factory , only Audi roll -up
sunscreens may be used
=> page 384, "Additional accessories and
parts replacement" .
• Always sit in proper seating position and wear safety belts
while traveling so that the side curtain airbags can help provide
protection .
• The airbag system can only be triggered once . If the airbag has
been triggered, the system must be replaced by an authorized
Audi dealer or qualified workshop.
• Always have work involving the side curtain airbag system,
removal and installation of the airbag components , or other
repairs performed by a qualified dealership. Otherwise the airbag
system may not work correctly.
& WARNING (continued)
• Never attempt to modify any components of the airbag system
in any way. •

-Child Safety -------=---------------------------------------
& WAR NIN G (co ntinued )
• Alw ays in sta ll re ar-facin g child safety s eats on the r ear seat .
• If you m us t in sta ll a rear ward f acing child saf ety s eat on th e
fr ont pa ssenger seat in exceptional circum stan ces and the
PA SSEN GER AIR BAG OFF light do es not come on and sta y on ,
immediately in sta ll the re ar-facing child safety s eat in a rear
s eating po sit ion and ha ve th e airb ag s ystem insp ected immedi ­
atel y by your Audi dea ler .
& WARNING
If, in exceptional circum stance s, you mu st in sta ll a forward -f a cing
c hild re str ain t on th e fr ont p assenger's s eat:
• Always mak e sure the forward -fac ing seat ha s been de signed
a nd ce rt ified by it s m anufa cturer for u se on a fr ont se at w ith a
pa ssenger front and side airbag.
• Always follow the m anufacturer's instru ctions provided w ith
the child safety seat or carr ier.
• Alwa ys mo ve the pa ssenger seat into it s rea rmost positi on in
the seat' s fore and aft adju stment range , as far aw ay from the
ai rbag as possib le bef ore installing the ch ild r estr aint . The ba ck­
re st mu st b e adjusted to an upright po sition.
• Alway s m ake sure that the PASSENGER AIR BAG OFF l ight
c om es on and sta y s on all the time whenever the ignition is
s w it c hed on . •
Advanced front airbag system and children
Your vehicle is equipped with an "Advanced Airbag System" in
complia nce with United States Federa l Motor Vehicle Safety Stan ­
dard (FMVSS) 208 as applicable at the time your vehicle was manu ­
factu red. T
he Advanced Airbag system in your vehicle has been certified to
meet the " low -risk" requirements for 3 and 6 year -old chi ldren on
the passenger side and smal l 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 "suppression" requirements of the Safety Standard, 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 listed in the
S tandard.
Even though your vehicle is equipped with an Advanced Airbag
system, all ch ildren, especially those 12 years and younger, should
always ride in the back seat properly restrained for their age and
size . The airbag on the passenger side makes the front seat a poten­
tially dangerous p lace for a child to ride. The front seat is not the
safest p lace for a child in a forward -facing child safety seat. It can be
a very dangerous p lace for an infant or a larger ch ild in a rearward­
facing seat. •
Advanced Airbags and the weight-sensing
mat in the front seat
The Advanced Airbag System in your vehicle detects the presence
of an infant or child in a chi ld restraint on the front passenger seat
using the weight -sensing mat in the seat cushion and the sensor
below the safety belt latch on the front passenger seat that
measures the tension on the safety belt.
The weight -sensing mat measures total weight of the chi ld and the
child safety seat and a child blanket on the front passenger seat . The
weight on the front passenger seat is related to the design of the
child restraint and its "footprint", the size and shape of the bottom
of the child restraint as it sits on the seat . The weight of a child
restraint and its "footprint" vary for different kinds of child ..,.

-----------------------------------------~C::_! h~ i~ ld ~ S~a !_!f ~e _!;tY L _ffllll
restraints and for the different models of the same kind of child
restraint offered by child restraint manufacturers.
The weight ranges for the individual types, makes and models of
child restraints that the NHTSA has specified in the Safety Standard
together with the weight ranges of typ ical infants and typical 1 year­
old child have been stored in the control unit of the Advanced
Airbag System. When a child restraint is being used on the front
passenger seat with a typical 1 year -old child, the Advanced Airbag
System compares the weight measured by the weight sensing mat
with the information stored in the electronic control unit.
The electronic control unit also registers the tension on the front
passenger safety belt. The tension on the safety belt for the front
passenger seat will be different for an adult who is properly using
the safety belt as compared to the tension on the belt when it is
used to attach a child restraint to the seat. The sensor below the
latch for the safety belt for the front seat passenger measures the
tension on the belt . The input from this sensor is then used with the
weight to "decide" , whether there is a child restraint with a typical 1
year-old child on the front passenger seat and whether or not the airbag must be turned off.•
Child restraints and Advanced Airbags
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 manufacturer for use with
an airbag. Always be sure that the chi ld restraint is properly
installed at one of the rear seating positions. If in exceptiona l
circumstances you must use it on the front passenger seat, carefully
read all of the information on child safety and Advanced Airbags
and heed a ll of the applicable WARNINGS. Make certain that the
child restraint is correctly recognized by the weight -sensing mat
inside the front passenger seat, that the front passenger airbag is
turned off and that the airbag status is always correctly signaled by
th e
PASSENGER AIR BAG OFF light .
Controls and equip­
ment Safety first Vehicle operation
Many
types and models of child restraints have been available over
the years, new mode ls are introduced regularly incorporating new
and improved designs and older mode ls are taken out of produc­
tion. Child restraints are not standardized . Child restraints of the
same type typically have different weights and sizes and different
'footprints,' the size and shape of the bottom of the chi ld restraint
that sits on the seat, when they are installed on a vehicle sea t. These
differences make it virtual ly impossible to certify comp liance with
the requirements for advanced airbags with each and every child
restraint that has ever been sold in the past or will be sold over the
course of the usefu l life of your vehic le.
For this reason, the United States National Highway Traffic Safety
Administration has pub lished a list of specific type, makes and
models of child restraints that must be used to certify compliance
of the Advanced Airbag System in your vehicle with the suppression
requirements of Federal Motor Vehicle Safety Standard 208. These
child restraints are:
A. Car beds, manufactured on or after September 1,
2004:
• Cosco Dream Ride 02-719
B. Rear facing child restraint systems, manufactured
on or after September 1, 2004:
(When the restraint system comes equipped with a removable base,
compliance has to be certified with or without the base) .
• Britax Handle with Care 191
• Century Assura 4553
• Century Smart Fit 4543
• Cosco Arriva 02727
• Evenflo Discovery Adjust Right 212
• Evenflo First Choice 204
• Graco lnfant8457
Vehicle care Do-it-yourself service Technical data

___ C_h_ i_ ld _ S_ a_ f_ e_ t_y ____________________________________________ _
C. Forward-facing convertible child restraint systems,
manufactured on or after September 1, 2004:
• Britax Roundabout 161
• Britax Expressway
• Century Encore 4612
• Century STE 1000 4416
• Cosco Olympian 02803
• Cosco Touriva 02519
• Evenflo Horizon V 425
• Evenflo Medallion 254
• Safety First Comfort Ride 22-400
& WARNING
To reduce the risk of serious injury, make sure that the PASSENGER
AIR BAG OFF light comes on and stays on whenever a child
restraint is installed on the front passenger seat and the ignition
is switched on.
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on.
• Have the airbag system inspected by your authorized Audi
dealer immediately.
[ i] Tips
The child seats listed in categories A to C have been tested by Audi
only for the Advanced Airbag function. •
Important safety instructions for using child
safety seats
Correct use of child safety seats substantially reduces the
risk of injury in an accident!
As the driver, you are responsible for the safety of every ­
body in the vehicle, especially children:
- Always use the right child safety seat for each child and
always use it properly ::::>
page 250.
-Always carefully follow the child safety seat manufac­
turer's instructions on how to route the safety belt prop­
erly 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 ::::>
page 255.
-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).
- If a strap or tether is being used to tie the child safety
seat to the front passenger seat, make sure that it is not
so tight that it causes the weight-sensing mat to
measure more weight than is actually on the seat.
Always remember: Even though your vehicle is equipped with an
Advanced Airbag system, all children, especially those 12 years and
younger, should always ride in the back seat properly restrained for
their age and size. _,,

___ C_h_ i_ld _ S_ a_ f_ e_ t-= y'------------------------------------------------
& WARNING (continued)
-Always move the front passenger seat into the rearmost
position of the passenger seat's fore and aft adjustment range,
and as far away from the airbag as possible before installing
the child restraint.
- 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 .
- Always make sure that the backrest is in the upright posi­
tion.
• Always buckle the child safety seat firmly in place even if a
child is not sitting in it. A loose child safety seat can fly around
during a sudden stop or in a collision.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used=>
page 211, "Safety belts",
=> page 220, "Airbag system" and=> page 245, "Child Safety".
& WARNING
To reduce the risk of serious injury, make sure that the PASSENGER
AIR BAG OFF light comes on and stays on whenever a child
restraint is installed on the front passenger seat and the ignition
is switched on.
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on.
• Have the airbag system inspected by your authorized Audi
dealer immediately. •
Child safety seats
Infant seats
Babies and infants up to about one year old and 22 lbs or
10 kg need special rearward-facing child restraints that
support the back, neck and head in a crash.
Fig . 242 Rearward­
facing infant seat,
properly installed on
the rear 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~
page 255 or install the seat using
the LATCH attachments.
- 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).
Infants up to about one year (22 lbs. or 10 kg) are best protected in
special infant carriers and child safety seats designed for their age
group. Many experts believe that infants and small children should
ride only in special restraints in which the child faces the back of the
vehicle. These infant seats support the baby's back, neck and head
in a crash . These child safety seats must never be used in the front
seat because of the risk of serious injury or death should the airbag
deploy in a crash=> fig. 242. ..

& WARNING
Not using a child safety seat, using the wrong child safety seat or
improperly installing a child restraint increases the risk of serious
personal injury and death in a cr ash .
• Never install rear-facing child safety seats or infant carriers on
the front passenger seat -even with an Advanced Airbag System .
A child will be seriously injured and can be killed when the
inflating airbag hits the child safety seat or infant carrier with
great force and smashes the child safety seat and child against the
backrest , center arm rest, or door=>
page 222, "Child restraints on
the front seat -some important things to know" .
• Always install rear-facing child safety seats or infant carriers on
the rear seat.
• Never install a rear-facing child restraint in the forward-facing
direction. Such restraints are designed for the special needs of
infants and very small children and cannot protect them properly
if the seat is forward-facing.
• If you must install a rearward facing child safety seat on the
front passenger seat because of 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 airbag system inspected by your
Audi dealer .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used
=> page 211 , "Safety belts",
=> page 220, "Airbag system" and => page 245, "Important things
to know". •
Safety first
Child Safety
Convertible ch ild safety seats
Properly used convertible child safety seats can help
protect toddlers and children over age one who weigh between 20 and 40 lbs. (10 and 20 kg) in a crash.
Fig . 243 Rear seat:
smaller child in a prop ­
erly installed forward­
facing convertible child safety seat
-When using the vehicle safety belt to install a child safety
seat, you must first activate the convertible locking
feature on the safety belt to prevent the child safety seat
from moving :::;,
page 255 or install the seat using the
LATCH attachment.
- 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)
:::;, page 255.
- If the child safety seat is equipped with a tether strap,
attach it to the tether anchors :::;,
page 264.
A toddler or child is usually too large for an infant restraint if it is
more than one year old and weighs more than 22 lbs. (10 kgl.
Toddlers and children who are older than one year up to about 4
years old and weigh more than 22 lbs (10 kg) up to 40 lbs . (18 kg)
should be properly restrained in a child safety seat certified for their
size and weight=> fig. 243. .,
Vehicle care I I Technical data

-Child Safety ----------------
T
he airbag on the passenger side makes the front seat a potent ial ly
d an ge rous plac e for a c hild to ride. The front seat is not the s afest
place for a c hild in a forward -f a cin g ch ild safet y se at. It is a v ery
d ange ro us p lace f or an infa nt or a la rge r ch ild in a rea rward -f aci ng
s e at.
& WARNING
Not using a child safety seat, using the wrong child safety seat or
improperly installing a child restraint increases the risk of serious
personal injury and death in a collision or other emergency situa ­
tion.
• 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 inflates -even with an Advanced Airbag System .
• 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 arm rest, or door .
• 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 because of exceptional c ircumstances 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 airbag system inspected by your
Audi dealer .
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used
=:> page 211 , "Safety belts ",
=>
page 220 , "Airbag system" and =:> page 245 , "Important things
to know ".
& WARNING
If exceptional c ircumstances require the use of a forward-facing
child restraint on the front passenger's seat , the child's safety and
well -being require that the following special precautions be taken:
• Make sure the forward -facing seat has been designed and certi­
fied by its manufacturer for use on a front seat with a passenger
front and side airbag .
• Always follow the manufacturer's instructions provided with
the child safety seat or carrier.
• Always move the front passenger seat into the rearmost posi­
tion of the passenger seat's fore and aft adjustment range, and as
far away from the airbag as poss ible before installing the child
restraint.
• 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.
• Always make sure the backrest is in an upright position .
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on.
• If the light does not stay on , perform the checks=>
page 231,
"Monitoring the Advanced Airbag System" .
• Take the child restraint off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR
BAG OFF light does not stay on whenever the ignition is switched
on .a