2008 AUDI S6 service

Airbag syst em -----------------=~-
the weight -sensing mat to measure more weight than is actually on
the seat .
If th e PA SSENGER AIR BAG OFF light still d oes not come on and does
not stay on continuously (when the ignition is switched on),
• t ake the child restraint off the front passenger seat and install it
properly at one of the rear seat positions. Have the airbag system
inspected by your Audi dealer immediately.
• move the child to a rear seat position and make sure that the
child is proper ly restrained in a child restraint that is appropria te for
its size and age .
The
P AS SENGER AIR BAG OFF light shou ld NOT come on when the
ignition is on and an adult is sitting in a proper seating posi tion on
the front passenger seat . If the
PASSENGER AIR BAG OF F light
comes on and stays on or flashes for about 5 seconds whi le driving,
under these circumstances, make sure that :
• the adu lt on the front passenger seat is properly seated on the
center of the seat cushion w ith his or her back up against the back­
res t and the backrest is not reclined => page 794, "Proper occupant
sea ting positions" ,
• the adult is not taking weight of f the sea t by holding on to the
passenger assist handle above the front passenger door or
supporting thei r we ight on the armrest,
• the safety belt is being proper ly worn and that there is not a lot
of slack in the safety belt webbing,
• accessory seat covers or cushions or other things that may cause
an incorrect reading or impression on the weight -sensing mat
under the upho lstery of the seat have been removed from the front
passenger sea t,
• a safety belt extender has not been left in the safety be lt latch for
t he front passenger seat .
In addition to the
PA SS ENGER AIR BAG OFF light in the center of the
instrument panel, the message
PASSENGER AIR BAG O FF o r
PAS SEN GER AIR BA G ON wi ll briefly appear in the instrument c luster
Controls and equip­
ment Safety first Vehicle operation
display. This is to inform the driver of the current front passenger
a
irbag status .•
Important safety instructions on monitoring
the Advanced Airbag System
& WARNING
An airbag sy stem that is not functioning properly cannot provide
supplemental protection in a front al cra sh .
• If the airb ag ind icator li ght come s on , it me ans that there may
be something wrong with the Advanced Ai rbag S ystem. It is
po ssible that the airbag will inflate when it is not suppo sed to , or
w ill not infl ate w hen it should .
• Have the airb ag system inspe cted immediatel y by you r Audi
dealer.
& WARNING
If the front airb ag infl ate s, a child without a child re straint , in a
rear ward -fa cing child safet y se at or i n a forwa rd-fa cing child
r e str aint that has not been properly installed will be seriously
inj ured and can be killed .
• Even though your vehicle i s equipped with an Adv anced Airbag
Sy stem , m ake cert ain that all children , e speci ally 1 2 year s and
younger , alway s ride on the bac k seat prope rly re strain ed for their
a ge and siz e .
• Alway s install forward or rear -facin g child safety seats on the
re ar seat - even with an Ad vanced Airb ag System .
• If you must in stall a rearwa rd -fa cing child safety seat on the
fron t pa sse nger seat be cau se of exc eptional circu mstan ce s a nd
the PASSENGER AIR BAG OFF light doe s not appe ar and st ay o n,
immedi atel y insta ll the rear -f ac ing child safet y seat in a re ar ..,
Vehicle care Do-it-yourself service Technical data

__________________________________________________ A_ i_ r _b _a...; g::- s_ y=--- s_t _e _m __ lll
& W ARNING (continued )
• Always make sure that the side airbag can inflate without inter­
ference :
- Never install seat covers or replacement upholstery over the
front seatbacks that have not been specifically approved by
Audi.
- Never use additional seat cushions that cover the areas
where the side airbags inflate.
- Damage to the or iginal seat covers or to the seam in the area
of the side airbag module must always be repaired immedi ­
ately by an authorized Audi dealer.
• The airbag system can be activated only once. After an airbag
has inf lated , it must be replaced by an authorized Audi dealer or
qualified technician who has the technical information , training
and special equipment necessary .
• The airbag system can be deployed only once . After an airbag
has been deployed, it must be replaced with new replacement
parts designed and approved especially for your Audi model
version. Replacement of complete airbag systems or airbag
components must be performed by qualified workshops only .
Make sure that any airbag service action is entered in you r Audi
Maintenance
& Warranty booklet under AIRBAG REPLACEMENT
RECORD .
• In accidents when an airbag is deployed , the vehicle battery
separates the alternator and the starter from the vehicle electrical
system for safety reasons with a pyrotechnic circuit interrupter.
-Work on the pyrotechnic circuit interrupter must only be
performed by a qualified dealer -risk of an accident!
- If the vehi cle or the circuit interrupter is scrapped, all appli ­
c able safety precautions must be followed . •
Controls and equip­ ment Safety first
Vehicle operation
Other things that can affect Advanced Airbag
performance
Changing the veh ic le 's suspen sion system can change the way that
the Adva n ced Air bag Syst em perfor ms in a crash . For e xamp le,
u sing tire -r im co mbinations not ap proved by Audi , lowering the
v ehi cle, c hang ing the s tiff ness of the susp ens ion, inclu d in g t he
springs, s uspension struts, shock absorbers etc. can change the
fo rce s t hat ar e meas ured by t he airbag sens ors and sent t o the e lec­
tronic control unit. Some suspens ion changes can, for example,
i nc rease t he for ce leve ls mea sured by th e sen sors and make th e
airbag system dep loy in crash es in wh ich it wou ld not deploy if the
ch anges had no t been m ade. O th er ki nds of change s may red uce
the force levels measured by t he sensors and prevent t he airba g
fr om d eploying when it shoul d.
T he se nso rs in t he safety b elt b uckle for the driver a nd front
passenger seat te ll the electronic control module if the safety belt is
l a tc h e d or n ot. If t he safet y bel t is bei ng use d, the front ai rbag w ill
dep lo y at a s lightly hig her rate of veh ic le dece leration than
if the
safe ty belt i s not be ing used . The re fo re, in a pa rticu la r colli sion, i t is
poss ible that an airbag will not deploy at a s eating position where
t he safe ty be lt is b ein g us ed b ut will infl ate a t th e po siti on where the
safety belt is not being used. It is important that nothi ng int erfer e
with the safety belt b uckl es so that the sens ors can send the correct
i n formation about safety belt use to the electronic control u nit.
& WARNING
Chang ing the vehicle's suspension includ ing use of unapproved
tire -rim combinations can change Advanced Airbag performance
and increase the risk of serious personal injury in a crash.
• Never install suspension components that do not have the
same performance characteristics as the components originally
installed on your vehicle.
• Never use tire-rim combinations that have not been approved
by Audi. ...
Vehicle care Do-it-yourself service Technical data

___ A_ ir_b _a_ g;:::;_ s--:.. y_s _t _e _m _________________________________________________ _
& 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 control module and prevent the
Advanced Airbag System from working properly.
• Always make sure that nothing can interfere with the safety
belt buckles and that they are not obstructed.
<£' For the sake of the environment
Undeployed airbag modules and pretensioners might be classified
as Perchlorate Material -special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlorate. When the vehicle or
parts of the restraint system including airbag modules safety belts
with pretensioners are scrapped , all applicable laws and regula ­
tions must be observed . Your authorized Audi dealer is familiar with
these requirements and we recommend that you have your dealer
perform this service for you. •
Side airbags
Description of side airbags
The airbag system can provide supplemental protection
to properly restrained occupants.
Fig. 207 Side airbag
location in the driver 's
seat
The side airbags are located in the sides of the front seat backrests
~ fig. 207 and the rear backrest * facing the doors. They are identi ­
fied by the word "AIRBAG" .
The side airbag system basically consists of :
• the electronic control module and external side impact sensors
• the two side airbags located in the sides of the front backrests
• two rear side airbags (as an ordered
option)
• the airbag warning light in the instrument cluster .
The airbag system is monitored electronically to make certain that
it is functioning properly at all times. Each time you turn on the igni ­
tion, the airbag system indicator light will come on for a few
seconds (self diagnostics).
The side airbag system supplements the safety belts and can help
to reduce the risk of injury to the driver's , front and rear*
passenger's upper torso on the side of the vehicle that is struck in a
side collision . The airbag deploys only in side impacts and only
when the vehicle acceleration registered by the control unit is high
~

Airbag system -----------------=~-
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
inflate within the blink of an eye at very high speed and with grea t
force. 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 supplemental side curtain airbag inflates. This applies espe ­
cially to children =>
page 234.
Although they are not a soft pillow , 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 vehicle. •
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 their job to provide supple­
mental prot ection.
& WARNING
Improperly wearing safety belts and improper seating positions
increase the risk of serious personal injury and death whenever a
vehicle is being used.
• 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
Controls and equip­ ment Safety first
Vehicle operation
& WARNING (continued)
expansion range of a SIDEGUARD head airbag can dangerously
interfere with its function. A deploying head airbag develops
enough force to catapult any piece of add-on component out of its
path of inflation and into the passenger compartment. An occu­
pant hit by such a projectile can suffer serious injury or death
=>
page 368 , "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 368, "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.
• Never attempt to modify any components of the airbag system
in any way.•
Vehicle care Do-it-yourself service Technical data

Child Safety -
--------------------''---
& WARNIN G (continu ed )
• Always install rear-facing child safety seat s on the rear seat.
• If you mu st in stall a re arw ard fa cing child safety sea t on the
front pa ssenger seat in exceptional cir cum stances and the
PASSENGER AIR BAG OFF light doe s not come on and stay on,
immediate ly in sta ll the re ar-facing child safety seat in a rear
s eating po sition and h ave the airbag sy stem inspected immedi ­
atel y by your Audi dea ler .
& WARNING
If, in exceptional circum stance s, you mu st install a forward -facing
c hild re st raint on the fro nt p ass enger's seat :
• Alway s make sure the forward -facing seat has been de signed
and cert ified by it s manufa cturer f or use on a front se at with a
p assenger front and side airbag .
• Always follow the manufacturer's instructions provided with
the child safety seat or carrier.
• Always mov e the passenger sea t into it s rea rmo st p osition in
the seat' s fore and aft adju stment r ange , as far away from the
airb ag as possible before in stalling the ch ild r estr aint . The b ack­
r es t must be adju sted to an upr ight po sition.
• Alway s ma ke sure th at the PASSENGER AIR BAG OFF l ight
c ome s on and stay s on all the time whenever the ignition is
s witched on. •
Advanced front airbag system and children
Your vehicle is equipped with a dual -stage front "Advanced Airbag
System" in comp liance with United States Federal Motor Vehicle
Safety Standard ( FMVSS) 208 as applicab le at the time your vehic le
was manufactured.
Controls and equip­ ment Safety first Vehicle operation
The Advanced Airbag system in your vehicle has been certified to
meet the " low -risk" requirements for 3 and 6 year -old children on
the passenger side and small adu lts on the driver side. The low risk
deployment crite ria are intended to reduce the risk of injury th rough
interaction with the airbag that can occur, for example, by being too
close to the steering wheel and instrument panel when the airbag
inf lates . In addit ion, the system has been cert ified 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
Standard.
Even though your vehic le is equipped with an Advanced Airbag
system, all children, especially those 12 years and younger, should
a lways ride in the back seat properly restrained for their age and
s ize . The airbag on the passenger side makes the front seat a poten­
tia lly dangerous p lace for a chi ld 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 place for an infant or a larger child 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 be lt .
The weight -sensing mat measures t otal weight of the child and the
child safety seat and a chi ld blanket on the front passenger seat. The
we ight o n 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
~
Vehicle care Do-it-yourself service Technical data

Child Safety ---------------------='----
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. •
Controls and equip­
ment Safety first Vehicle operation
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 239.
- 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
244 .
-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. ..,
Vehicle care Do-it-yourself service Technical data

_______________________________________________ C_h _ i_ld _ S_ a_ f_ e_ t..,:c y __ __
The airbag on th e passe nger s id e makes th e front seat a pot entially
d a ngerou s place for a child to ride. The fr ont sea t is n ot the safest
p lace for a chi ld in a forward -facin g child safety seat . It is a v ery
da ngero us place f or an infa nt or a la rge r child i n a rearwa rd -facing
seat.
& 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 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 202 , "Safety belts ",
=> page 212, "Airbag system" and => page 234 , "Important things
to know ".
Controls and equip­ ment Safety first
Vehicle operation
& WARNING
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 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 prov ided 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 223,
" 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 .•
Vehicle care Do-it-yourself service Technical data

_______________________________________________ C_h _ i_ld _ S_ a_ f_ e_ t..,:c y __ lftlll
& WARNING (continued )
• If the backrest is not securely latched, the child and the child
restraint will be thrown forward together with the backrest and
will strike parts of the vehicle interior . The child can be seriously
injured or killed .
• Never install rear-facing child safety seats or infant carriers on
the front passenger seat. A child will be seriously injured and can be killed when the passenger 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 arm rest , door or roof.
• Always install rear-facing child safety seats or infant carriers on
the rear seat.
• Forward-facing child safety seats or infant carriers installed on
the front passenger's seat may interfere with the deployment of
the airbag and cause serious injury to the child .
• It is safer to install a forward -fac ing child safety seat on the rear
seat.
• Always read and heed all WARNINGS whenever using a child
restrained in a vehicle is being used
=> page 234 . Special precau­
tions apply when installing a child safety seat on the front
passenger seat
=> page 214 , "Child restraints on the front seat -
some important things to know ".
& WARNING
Always take special precautions if you must install a forward or
rearward-facing child restraint on the front passenger's seat in
exceptional situations:
• Whenever a forward or rearward -facing child restraint is
installed on the front passenger seat, the PASSENGER AIR BAG
OFF light must come on and stay on whenever the ignition is
switched on .
Controls and equip­ ment Safety first
Vehicle operation
& WARNING (continued )
• If the PASSENGER AIR BAG OFF light does not come on and stay
on, perform the checks described
=> page 223, ''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 .
• Improper installation of child restraints can reduce their effec­
tiveness or even prevent them from providing any protection.
• An improperly installed child restraint can interfere with the
airbag as it deploys and seriously injure or even kill the child.
• Always carefully follow the manufacturer's instructions
provided with the child safety seat or carrier.
• Never place additional items on the seat that can increase the
total weight registered by the weight-sensing mat and can cause injury in a crash.
& WARNING
Forward-facing child restraints:
• Always make sure the forward -facing seat has been designed
and certified by its manufacturer for use on a front seat with a
passenger front and side airbag.
• Never put the forward-facing child restraint up, against or very
near the instrument panel .
• Always move the passenger seat into its rearmost position in
the seat's fore and aft adjustment range , as far away from the
airbag as possible before installing the forward-facing child
restraint . The backrest must be adjusted to 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 . .,,,_
Vehicle care Do-it-yourself service Technical data