2017 AUDI A8 instrument panel

Airbag system
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occu­
pants.
Fig. 230 Location of dr iver airbag: in steering whee l
Fig. 231 Location of front passenger's airbag: in th e in­
strument panel
Your veh icle is equipped with an "Advanced Air­
bag System " in compliance with Un ited States
Federal Motor Vehicle Safety Standard
(FMVSS) 208, as well as Canada Motor Vehicle
Safety Standard (CMVSS) 208 as applicable at
the time your vehicle was manufactured. he safe­
ty belts for the seats have "pretensioners" that help to take s lack out of the belt system. The pre­
tensioners are also activated by the electronic
control unit for the airbag system.
The front safety be lts 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 . 230 and the airbag for the front pas­
senger is in the instrument panel~
fig. 231. The
general location of the airbags is marked "AIR­
BAG".
230
There is a lot you need to know about the airbags
in your vehicle . We urge you to read the detai led
i nformation about airbags, safety belts and ch ild
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 infants and small children .
.&_ WARNING -
Never rely on airbags alone for protection.
- Even when they deploy, airbags provide only
supp lemental 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 vehicle is
properly restrained .
.&_ WARNING
A person on the front passenger seat, espe­
cially infants and small ch ildren, wi ll receive
serious injuries and can even be killed by be­
ing too close to the airbag when it inf lates.
- 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 un­
der these special conditions is impossible in
all conceivable 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
heav ier than the typical one-year old ch ild is
on the front passenger seat and the other
conditions fo r airbag deployment are met.
- Accident statistics have shown that children
are generally safer in the rear seat area than
in the front seating pos ition.
- For their own safety, all children, especially
12 years and younger, should always ride in
the back proper ly restrained for their age
and size.

0 co .... N ,..... N .... 0 0 :c ' Advanced front airbag system
Your vehicle is equipped with a front Advanced
Airbag System in compliance with Un ited States
F edera l Motor Vehicle Safety Standard 208, as
well as Canada Motor Vehicle Safety Standard
(CMVSS) 208 as applicable at the time your vehi­
cle was manufactured .
The front Advanced Airbag System supp lements
the safety belts to provide additional protection
for the driver 's and front passenger's heads and
upper bodies in frontal crashes . The airbags in­
f late only in frontal impacts when the veh icle de­
cele ration is high enough.
The front Advanced Airbag System for the front
seat occupants is not a substitute for your safety be lts . Rather, it is part of the overall occupant re­
s tra int system in your vehicle. Always remember
that the airbag system can on ly help to protect
you, if you are sitting upr ight, wear ing your safe­
ty belt and wear ing it prope rly . This is why you
and your passengers must always be prope rly re­
stra ined, not just beca use the law req uires yo u to
be .
The Advanced Airbag System in your veh icle has
been ce rtified to meet the "low r is k" requi re­
ments fo r 3 and 6 ye ar-old children o n the pas­
senger side and very sma ll adults on the drive r
side . The low risk dep loyment criteria are intend­
ed to help reduce the risk of injury through inter­
action with the front a irbag that can occur, for
examp le, by being too close to the steering wheel
and instrument panel when the airbag inflates .
In addition , the system has been certified to
comp ly with the "suppression" requi rements of
the Safety Standard, to turn off the front a irbag
for i nfants 12 months old and younger who are
restrained on the front passenger seat in child re ­
stra ints that are listed in the Standa rd
¢ page 250, Child restraints and Advanced Air­
bags.
"Suppress ion" requ ires the front a irbag on the
passenger side to be turned off if:
- a ch ild up to about one year of age is restra ined
on the front passenger seat in one of the rear­
facing or forward -fac ing infant restra ints listed
Airb ag sys tem
in Federal Motor Veh icle Safety Standard 208
with which the Advanced Airbag System in your
veh icle was certif ied. For a List ing of the child
restraints that were used to certify your vehi­
cle's compliance with the US Safety Standard
¢ page 250,
-weight less than a threshold level stored in the
con trol un it is detected on the front passenger
seat .
When a person is detected on the front passen­ ger seat, weighing more than the total weight of
a chi ld that is about
1 year old restra ined in one
of the rear-facing or forward -fac ing infant re ­
straints (listed in Federal Motor Veh icle Safety
Standard 208 with w hich the Advanced A irbag
System in your veh icle was certified), the front
airbag on the passenge r side may o r may not de­
ploy .
T he
PAS SENGER AIR BAG OFF lig ht comes o n
whe n the elect ronic control uni t detects a tota l
weight on the fron t passenger sea t th at req uires
the front airbag to be turned off . If the
PASSEN­
GER AIR BAG OFF
light does not come on, the
front airbag on the passenger side has not been
turned off by the control unit and can dep loy if
the control unit senses an impact that meets the
condit ions stored in its memory .
If the total weight on the front passenger seat is
more than that of a typica l 1 year-old, but less
than the weight of a small adult, the front airbag
on the passenger s ide may deploy (the
PAS SEN­
GER AIR BAG OFF
light does not come on) .
For example , the ai rb ag may deploy if :
- a small chi ld that is heav ier than a typ ica l 1
yea r-o ld child is on the front passenger seat
(regard less of whether the child is in one of the
child seats listed
¢ page 250),
- a child who has outgrown c hild restraints is on
the front passenger seat.
If the front passenge r a irbag is t urned off, the
PASSENGER AIR BAG OFF light in the center of
the instrument pane l wi ll come on and stay on .
T he front airbag on the passenger side m ay
not
deploy (the PASSENGER AIR BAG OFF light does
not illuminate and stay lit) if: ..,.
231

0 co .... N ,..... N .... 0 0 :c - PASSENGER AIR BAG OFF light
Fig. 233 Section from the instrument panel: PASSENGER
AIR BAG O FF light
The PA SSENGER AIR BAG OFF light is located in
the center o f the instrument panel¢
fig. 233 .
The PASSENGER AIR BAG OFF light will come on
and stay on to tell you when the front Advanced
Ai rbag on the passenger side has been turned off
by the electronic control unit . Each time you
switch on the ignition, the
PAS SENGER AIR BAG
O FF
light will flash for a few seconds and :
- will stay on if the front passenger seat is not
occupied,
- will stay on if there is a small ch ild or chi ld re­
straint on the front passenger seat,
- will go out if the fro nt passenge r seat is occu­
pied by an adul t as reg istered by the weight­
sensing mat .
The
PASSENGER AIR BAG OFF light m ust c ome
on and st a y on
if the ignition is on and
- a car bed has been installed on the front seat, or
- a rearward-facing child restraint has been in­
stalled on the front passenger seat, or
- a forward-facing child restra int has been instal­
led on the front passenger seat, or
- the weight reg istered on the front passenger
seat is equal to or less than the combined
we ight of a typical 1 year -old restrained in one
of the rear-facing or forward-fac ing infant re­
straints listed in Federal Motor Vehicle Safety
Standard 208 w ith w hich the Advanced A irbag
System in your ve hicle was certified .
I f the front passenger seat is not occupied, the
front a irbag w ill not deploy, and the
PASSENGER
Airb ag sys tem
AIR BAG OFF light wi ll stay on . Never insta ll a
rearward -facing child restraint on the front pas­
senger seat, the safest place for a chi ld in any
k ind of child restraint is at one of the seating po ­
s itions on the rear seat¢
page 22 7, Child re­
straints on the front seat -some important
things to know
and ¢ page 248, Child safety.
If the PA SSENGER AIR BAG OF F light come s on
when one of the conditions listed above is met,
be sure to check the light regularly to make cer ­
ta in that the
PA SSENGER AIR BAG OFF light
stays on continuously whenever the ignition is
o n . If the
PA SSENGER AIR BAG OFF light does
not appea r on and does no t stay on all the time ,
stop as soon as it is safe to do so and
- reactivate the system by sw itching the ign ition
off and then switching it on aga in ;
- remove and re install the child restraint . Make
sure that the child restra int is properly insta l­
led and tha t the safety belt for the front pas­
senger seat h as bee n correct ly routed th rough
the child restraint as desc ribed in the chi ld re ­
straint manufacturer's instructions;
- make sure that the convert ible lock ing retrac­
to r on the safety belt for the fro nt passenge r
seat has been activated and that the safety belt
has been pulled tight. The belt m ust not be
loose or have loops of slack so that the sensor
be low the safety belt latch on the seat can do
its job ¢
page 258 .
-make su re that th ings that may increase the
weight of the child and ch ild seat are not being
transported o n the front passenge r seat;
- make su re that the safety be lt tens ion sensor is
not blocked. Shake the safety belt latch on the
front passenger seatback and forth;
- If a strap or tether is being used to tie the child
seat to the front passenger seat, make su re
that it is not so tight that it causes the weight­
sensi ng mat to measure more weight than is
act ually on the seat.
If th e PA SS ENGER AIR BA G OFF light still does
not come on
and does not stay on co ntinuously
(whe n the ign ition is sw itc hed on),
- take the child restra int off the front passenger
seat and install it properly at one of the rear ..,_
237

0 co .... N ,..._
N .... 0 0 :c ' OFF light comes on and stays on all the time
whenever 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, make sure the adult is
properly seated and restrained at one of the
rear seating positions.
- Have the airbag system inspected by your
Audi dealer before transporting anyone on
the front passenger seat.
{D) Tips
If the weight-sensing mat in the front passen­
ger seat detects an empty seat, the front air­
bag on the passenger side will be turned off,
and the
PASSENGER AIR BAG OFF light will
stay on.
Repair, care and disposal of the airbags
Parts of the airbag system are installed at many
different places on your Audi. Installing, remov­
ing, servicing or repairing a part in an area of the
vehicle can damage a part of an airbag system
and prevent that system from working properly in a collision .
There are some important things you have to
know to make sure that the effectiveness of the
system will not be impaired and that discarded
components do not cause injury or pollute the
environment.
A WARNING
Improper care, servicing and repair proce­
dures can increase the risk of personal injury
and death by preventing an airbag from de­
ploying when needed or deploying an airbag
unexpectedly:
- Never cover, obstruct, or change the steer­
ing wheel horn pad or airbag cover or the in­
strument panel or modify them in any way.
- Never attach any objects such as cup holders
or telephone mountings to the surfaces cov­
ering the airbag units.
Airbag system
-For cleaning the horn pad or instrument
panel, use only a soft, dry cloth or one mois­
tened with plain water. Solvents or cleaners
could damage the airbag cover or change
the stiffness or strength of the material so
that the airbag cannot deploy and protect properly.
- Never repair, adjust, or change any parts of
the airbag system.
-All work on the steering wheel, instrument panel, front seats or electrical system (in­
cluding the installation of audio equipment,
cellular telephones and CB radios, etc.) must be performed by a qualified technician
who has the training and special equipment
necessary.
- For any work on the airbag system, we
strongly recommend that you see your au­
thorized Audi dealer or qualified workshop.
- Never modify the front bumper or parts of
the vehicle body.
- Always make sure that the side airbag can
inflate without interference:
- 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 in­
flate.
- Damage to the original 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 inflated, 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 work-
shops only. Make sure that any airbag
Ill-
239

Airbag syste m
service action is entered in your Audi War­
ranty
& Maintenance book let under AIRBAG
REPLACEMENT RECORD.
- For safety reasons in severe accidents, the
alternator and starter are separated from
the vehicle battery with a pyrotechnic circuit interrupter.
- Work on the pyrotechnic circuit interrupt­
er must only be performed by a qualified
dea ler· risk of an accident!
- If the veh icle or the circuit interrupter is
scrapped, all applicab le safety precautions
must be followed .
@ For the sake of the environment
Undeployed airbag modu les and pretension ­
ers might be classified as Perch lorate Materi­
al -special handling may apply, see
www .dtsc.ca.gov/hazardouswaste/perchlo­
rate. When the vehicle or parts of the re­
straint system including airbag modules and
safety belts w ith pretensioners are scrapped,
all applicable laws and regulations must be
observed. Your authorized Audi dealer is fa­
m iliar with these requirements and we recom­
mend that you have your dealer perform this
serv ice for you .
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System
performs in a crash. For example, using t ire-r im
comb inat ions not approved by Audi, lower ing the
veh icle, chang ing the st iffness of the suspens ion,
including the springs, suspension struts, shock
absorbers etc. can change the forces that are
measured by the airbag senso rs and sent to the
electronic contro l unit. Some suspension changes
can, for example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in which it would not deploy if
the changes had not been made. Other kinds of changes may reduce the force levels meas ured by
the sensors and prevent the airbag from deploy­ ing when it should .
240
A WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim comb inations can
change Advanced Airbag performance and in­
crease the r isk of serious personal injury in a
crash.
- Never insta ll suspension components that
do not have the same performance charac­
ter istics as the components origina lly ins tal­
led on you r vehicle.
- N ever use tire-r im combinations that have
no t been approved by Aud i.
A WARNING
It ems stored between the safety belt buckle
and the center conso le can cause the sensors
in the buckle to send the wrong information
to the electronic contro l module and prevent
the Advanced A irbag System from working
proper ly.
- Always make sure that nothing can interfere
with the safety belt buckles and that they
are not obstructed.
Knee airbags
Description of knee airbags
The knee airbag system can provide supplemen­
tal protection to properly restrained front seat
occupants.
Fig . 234 D river 's knee a irbag
The driver knee airbag is in the instrument panel
underneath the steering wheel~
fig. 234, the
airbag for the passenger is at about the same height in the instrument panel underneath the
glove compartment . ..,_

C) C0 ....
"' " "' .... 0 0 :r The knee airbag offers additional protection to
the driver's and passenger's knees and upper and
lower th igh areas and supp lements the protec­
tion provided by the safety belts.
I f the front airbags dep loy, the knee airbags also
deploy in fronta l co llisions when the dep loyment
threshold stored in the contro l unit is met
c:::> page 234, More important things to know
about front airbags.
In addition to their normal safety function, safe­
ty belts help keep the driver or front passenger in position in a frontal coll is ion so that the a irbags
can prov ide supplemental protect ion.
The airbag system is not a substitute for your safety belt. Rather, it is part of the overall occu ­
pant restraint system in your vehicle . Always re­
member that the airbag system can only help to
protect you if you are wearing your safety belt
and wear ing it properly . T his is why yo u should
always wear your safety belt, not j ust because
the law requires you to do
so <=> page 218, Gener­
al information.
Remember too, airbags will deploy only once and
on ly in certain k inds of accidents -your safety
be lts are always there to offer protection in those
accidents in wh ich airbags are no t supposed to
deploy or w hen they have a lready dep loyed, for
examp le when your vehicle strikes or is struck by
another after the first collision .
This is jus t one of the reasons why an airbag is
not a substitute for the safety belt . The a irbag
system works most effectively when used with
the safety belts . Therefore, a lways wear your
safety belts correct ly.
It is important to remember that wh ile the sup­
p lemental knee airbag system is designed to re ­
d uce the likelihood of serious injuries, other inju­
ries, for example, swell ing, bruising and minor
abrasions and friction burns can also occur when
an airbag inf lates.
The knee airbag system basically cons ists of:
- The electronic contro l module
- T wo inf latab le airbags (airbag and gas genera-
tor), one for the driver and one fo r the front
passenger
Airb ag sys tem
- The a irbag indicator light in the instrument
panel
The knee airbag system will not deploy:
- when the ignit ion is switched off
- in fronta l co llisions when the decelerat ion
meas ured by the contro l unit is too low
- in side co llisions
- in rear-end collisions
- in rollovers
- in the event of a system malfunction (warning/
ind icator light is on)
c:::> page 23.
A WARNING
--Safety belts and the airbag system can only
provide protect ion when occupants are in
the prope r seat ing pos ition
c:::> page 234.
- If the airbag ind icator light c:::> page 23
comes when the veh icle is being used, have
the system inspected immediately by your
author ized Audi dealer.
It is possib le that
the airbag will inflate when it is not sup­
posed to, or w ill not inf late w hen it should.
How knee airbags work
The risk of injury to the leg area can be reduced
by fully inflated knee airbags .
Fig. 2 35 Inflated a irbags protect ing in a fro nta l collision
The knee airbag system has been designed so
that the airbags for the driver and front passen­
ger deploy in certain but not all frontal collisions .
If the front airbags deploy, the knee airbags also
deploy in frontal collis ions when the deployment
threshold stored in the control unit is met.
When the system deploys, the a irbags fi ll with a
prope llant gas, and infla te between the lower
Ill-
241

Airbag system
part of the instrument panel and the driver and
the lower part of the instrument panel and the
front passenger
c> poge 234, fig. 232.
Although they are not a soft pillow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the lower ex­
tremities.
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 important for
occupant safety that nothing should be in their
way when they deploy.
Fully inflated airbags in combinat ion with proper­
ly worn safety belts slow down and limit the oc­
cupant's forward movement and help to reduce
t he risk of injury.
Important safety instructions on the knee
a irbag system
Airbags ore only supplemental restraints. Always
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 .
A WARNING
An inflating knee airbag can cause serious in­
jury. Wearing safety belts incorrectly and im­ proper 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 are seated too close to any of
the airbag locations. When adjusting their
seat positions, it is important 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/instrument panel.
242
- 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 wear­
ing your safety belt . The risk increases even
more should the airbag deploy.
- Always make sure that the knee airbag can
inflate without interference . Objects be­
tween you and the airbag can increase the risk of injury in an accident by interfering
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 of the passenger seat. If the airbag deploys, this
can result in serious or fatal injuries .
- Never carry objects of any kind in the foot­
well area in front of the driver's or pas­
senger's seat. Bulky objects (shopping bags, for example) can interfere with or
prevent proper deployment of the airbag.
Small objects can be thrown through the
vehicle if the airbag deploys and injure you
or your passengers.
- Make sure there are no cracks, deep scratch­
es or other damage in the area of the instru­
ment panel where the knee airbags are lo­
cated .
- If children are incorrectly seated, their risk
of injury increases in a collision
c> page 248, Child safety.

Airbag syste m
The side curtain airbag system supplements the
safety belts and can he lp to reduce the risk of in­
jury for occupants' heads and upper torso on the side of the vehicle that is struck in a side colli­
sion . The side curtain airbag inflates in side im­
pacts and only when the vehicle acceleration reg ­
istered by the control unit is h igh enough . If this
rate is below the reference value p rogrammed in­
to the control un it, the side ai rbags wi ll not be
tr iggered, even though the car may be bad ly
damaged as a result of the collision. It is not pos­
sible to define an airbag triggering range that
will cover every poss ible ang le of impact, since
the circumstances will vary cons iderably between
one collision and another. Important factors in­
clude, for example , the nature (hard or soft) of
the impacting object, the angle of impact, vehicle
speed , etc.
c:> page 246, How side curtain air­
bags work .
Aside from their normal safety function, safety
belts work to help keep the driver or front pas ­
senger in pos it io n in the event of a collision so
that the side curtain airbags can provide protec­
tion .
The airbag system is not a substitute for your safety belt. Rather, it is part of the overall occu­
pant restraint system in your vehicle . Always re­
member that the airbag system can only help to
protect yo u if you are wea ring your safety belt
and wear ing it properly . T his is another reason
why you should always wear your safety belts, not just because the law requires you to do so
c:> page 218, General information.
I t is important to remember that whi le the s ide
curtain airbag system is designed to help reduce
the likelihood of serious injuries, other injuries,
for example, swe lling, bruising, and m inor abra­
sions can a lso be associated with these airbags
upon deployment. Remember too, these a irbags
w ill deploy only once and only in certa in kinds of
accide nts -your safety belts are a lways the re to
offer protection.
The side curtain airbag system basically
consists of:
- The electronic control module and external s ide
impact senso rs
246
- The side curtain a irbags above the front and
rear side windows
- The a irbag indi cator light in the instrument
panel
The airbag system is mon itored electro nical ly to
make certain it is func tioning properly at all
times. Each t ime you switch on the ignit ion, the
airbag system indicator light will come on for a
few seconds (self diagnostics) .
The side curtain airbag i s not activated:
- if the igni tion is switched off,
- in side collisions whe n the acceleration meas-
ured by the sensor is too low,
- in rear-end collisions .
A WARNING
-Safety belts and the airbag system will only
provide pro tect ion when occupants are in
t he prope r seating pos ition
c:> page 54,
Seats and storage.
- I f the a irbag ind icator light c:> page 23
comes when the veh icle is being used, have
the system inspected immediately by your
authorized Audi dealer . It is possib le that
the airbag will inflate when it is not sup­
posed to, or will not inflate when it should.
How side 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 re­
strained.
F ig. 239 Illu strat io n of pr inc iple : In flated side curta in a ir-
bag s on the left s ide
II>