ESP AUDI A8 2018 Repair Manual

u. co .... N
" N .... 0 0 :c ' A WARNING
Always read and heed all WARNINGS and oth­er important
i nformation¢ page 221.
(D Tips
You can a lso adjust the height of the front
seats to change the position of the safety
be lts.
Improperly worn safety belts
Incorrectly positioned safety belts can cause se ­
vere injuries.
Wearing safety be lts improperly can cause seri ­
ous injury or death. Safety belts can on ly work
when they are correctly pos itioned on the body.
Improper seating positions reduce the effect ive­
ness of safety belts and will even increase the
risk of injury and death by mov ing the safety belt
to cr it ica l areas of the body. Improper seating
positions also increase the r isk of serious i njur y
a n d death when an airbag deploys a nd str ikes an
occupant who is not in the correct seating pos i­
tion . A driver is responsible for the safety of a ll
ve hicle occupants and especia lly for children.
Therefore:
.. Never permit anyone to ass ume an incorrect
sitting position in the vehicle w hil e trave ling
¢A .
A WARNING
Improperly worn safety be lts increase the risk
of serious personal injury and death whenever
a vehicle is be ing used.
- Always ma ke sure that a ll vehicle occupants
are correctly restra ined and stay i n a correct
sea ting pos it ion whenever the ve hicle is be­
ing used .
- Always read and heed all WARNINGS and
ot her important information
¢ page 221.
Safet y be lts
Belt tensioners
How safety belt pretensioners work
Rev ersible safety belt tension ers
T he following fu nctions a re available when safety
belts w it h reversib le safety belt tensione rs a re
faste ned:
- Automatic tens ioners: at the start of a drive,
the safety belts automatically ad just to the
passenger after a certain time period or veh icle
speed. To switch the a utomat ic tens ioners off,
select the following in t he M MI:
!CARI fu nction
button
> Car systems > Vehicle settings >
Seat s > Driver 's seat or Passenger 's seat > Au­
tomatic belt tensioner
> Off .
- In ce rtain driving situations, the safety belts
may tighten wit h a reve rsib le tensioning func ­
tion
r=;, page 217.
- The safety be lts may also tighten with this re -
versible tensioning function in minor collisions.
Pyrotechnic safety belt pretensioners
Seat be lts wi th py ro technic s afety be lt preten ­
s io ners are tensioned au toma tically i n seve re col ­
li sions, depending on t he circumstances . This
helps to reduce the forward motion of the occu ­
pants .
A WARNING
= -
- It is poss ib le for the pretensioners to dep loy
incor rectly.
- Any work on the tens ioner system or remov­
al and installation of system components
for other repairs m ust be performed by a
qualified workshop.
- The pyrotechnic system can only p rovide
protection fo r one collision. If the py rotech­
n ic pretens ioners deploy, the pretensioning
system must be rep laced.
(D Tips
- A fine dust is re leased when the pyrotechnic
safety belt pretensioners dep loy. Th is is no r­
ma l and is not caused by a f ire in t he ve hi­
cle.
- The relevant safety requirements must be
observed when the vehicle or componen ts
225

u. co .... N
" N .... 0 0 :c ' Airbag system Important information
Importance of wearing safety belts and
sitting properly
Airbags are only suppl em ental restraints . For
airbags to do their job, occupants must always
properly wear their safety belts and be in a prop­
er seating position .
For your safety and the safety of your passen­
ge rs, before dr iving off, always:
.,. Adjust the dr iver's seat and steer ing wheel
prope rly~ page 209,
.,. Adjust the fro nt passenge r's seat prope rly
~page 54,
.,. We ar safety bel ts p roperly~ page 221,
.. Always properly use the proper c hild restraint
to protect chi ld ren
r=>page 249.
In a coll is io n, a irbags mus t infla te wi thin t he
b link of an eye and with consi derab le force . The
supp lemental airbags can cause injuries if the
d river or the front seat passenger is not seated
properly. Therefore in order to he lp the airbag to
do its job, it is important, both as a dr iver and as
a passenger to sit properly at a ll times.
By keeping room between yo ur body and t he
steer ing whee l and the front of the passenger
compa rtment, the airbag can inflate fully and
comp lete ly and prov ide supplemental protect io n
in certa in frontal coll is ions
r=> page 209, Correct
passenger seating positions.
Fo r de tails on the
operat ion of the seat ad justment cont rols
r=>page5 4.
It's especially important that children a re proper­
ly restra ined
r=>page 249.
There is a lot that the driver and the passengers
can and must do to help the ind ividual safety fea­
tures installed in your Audi work togethe r as a
sys tem.
Proper seating posit ion is important so that the
front airbag on the driver side can do its job. If
you have a physical impairment o r cond it ion that
p revents yo u from s itting properly on the driver
seat with the safety be lt prope rly fastened and
Airbag syste m
reaching the peda ls, o r if yo u have concerns w it h
r egard to the functio n or operatio n of the Ad ­
vanced Airbag System, please co ntact you r au­
thorized Audi dea le r or q ua lified workshop, or
ca ll Audi Customer Re lations at 1-800-822-2834
for poss ible modifications to your vehicle .
When the a irbag system dep loys, a gas generator
will fill the airbags, break open the padded cov­ ers, and inflate betwee n the stee ring wheel and
the driver and between the inst rument panel and
the fron t passenger . The a irbags w il l deflate im­
med iate ly after deployment so that the front oc­
c u pants can see t hrough the winds hield aga in
wi thou t interru ption.
All of t his takes place in the bl ink of an eye, so
fast that many peop le don't even real ize that the
airbags have deployed. The airbags a lso infla te
wi th a g re at deal of for ce and n othing should be
i n the ir way when t hey dep loy . Front airbags in
combination with properly worn safety belts slow
down and limit the occupant's forward move ­
ment. Together they he lp to prevent t he driver
and front seat passenger from hitting pa rts of
the ins ide of the vehicle whi le red ucing the forces
acting on the occupa nt dur ing the crash. In th is
way they help to red uce the risk of in jury to the
head and uppe r body in the crash. Airbags do no t
pro te ct the arms or the lower pa rts of t he bo dy.
Both front airbags will not inflate in all frontal
collisions. The t rigge ring of t he a irbag system de­
pends on the veh icle decelerat ion rate caused by
t h e coll is io n an d regis tered by the ele ct ronic con ­
t ro l unit. If this rate is be low the refe re nc e v alue
programmed in to the co ntro l unit, t he a irbags
will not be t riggered, even tho ugh t he car may be
badly damaged as a res ult of the co llision. Vehi ­
cle damage, repa ir costs or even the lack of vehi­
cle damage is not necessari ly an indication of
whethe r an a irbag should inflate o r not.
S ince the circumstances will vary cons iderably
between one co llision and another, it is not possi ­
ble to define a range of ve hicle speeds that will
cove r every poss ible kind and angle of impact
t h at w ill always trigge r th e a irbags. Importa nt
factors include, for examp le, the nat ure (hard or
soft) of the object which t he ca r hits, t he angle of
im pact, vehicle speed, etc. The front airbags will
.,.
227

Airbag syste m
also not inflate in side or rear co llisions, or in
ro ll- overs.
Alwa ys rem ember : Airbags will deploy only once,
and on ly in ce rtain k inds of coll is ions. Yo ur safety
be lts are always there to offer protection in those
situations in which airbags are not supposed to
deploy, or when they have already deployed; for
examp le, when your vehicle str ikes or is struck by
another vehicle after the first collision.
This is just one of the reasons why an airbag is a
supplementary restraint and is not a substitute
for a safety belt. The a irbag system works most
effect ively when used with the safety belts.
Therefore, always properly wear your safety belts
r;:;, page 219 .
A WARNING
Sitting too close to the steering wheel o r in­
st rument panel will decrease the effective­
ness of the airbags and will inc rease the risk
of personal injury in a co llision.
- Never sit closer than 1 0 inches ( 25 cm) to
the steering wheel or instrument panel.
- If you cannot sit mo re than 10 inches
( 2 5 cm) from the steering wheel, invest i­
gate whether adap tive equipment may be
available to help yo u reach the pedals and
increase your seating distance from the
steering wheel.
- If you are unrestrained, leaning forward, sit­
ting sideways or out of position in any way,
your risk of in jury is much h igher.
- Yo u will also receive serious injuries and
could even be killed if you are up aga inst the
airbag or too close to it when it inflates
-
even with an Advanced Airbag.
- To reduce the risk of injury when an airbag inflates, a lways wear safety belts properly
c> page 222, Safety belts .
- Always make certain that chi ldren age 12 or
younger always ride in the rear seat. If chil­ dren are not properly restra ined, they may
be severe ly injured or k illed when an airbag
inflates.
- Never let children ride unrestrained or im­ prope rly restrained in the vehicle . Adjust the
front seats properly.
228
-
- Never ride with the back rest recl ined .
-Always sit as far as possible from the steer -
ing wheel or the instrument panel
c>page209.
- Always sit upright with your back against
the backrest of your seat.
- Never p lace your feet on the instrument
panel or on the seat. Always keep both feet
on the floor in front of the seat to help pre­
vent serious injur ies to the legs and hips if
the airbag inflates.
- Never recl ine the front passenger's seat to
transport objects. Items can also move into
the area of the s ide a irbag or the front air­
bag during brak ing or in a sudden maneu­
ver. Objects nea r the airbags can become
pro jecti les and cause injury when an airbag
inflates.
A WARNING
A irbags tha t have deployed in a cr ash m ust be
replaced.
- Use on ly orig inal equipment airbags ap­
proved by Audi and insta lled by
a trained
technician who has the necessary tools and
diagnostic equipment to prope rly replace
any airbag in yo ur vehicle and assure system
effectiveness in a crash.
- Never permit salvaged or recycled airbags to
be installed in your vehicle .
Child restraints on the front seat - some
important things to know
"' Be sure to read the important informat ion and
heed the WARNINGS fo r important deta ils
about ch ild ren and Advanced A irbags
r;:;, page 249 .
Even thoug h your veh icle is equ ipped w it h an Ad ­
vanced Airbag Sys tem, make certa in that a ll chil­
dre n, espec ia lly those 12 yea rs and younger, al­
ways ride i n the b ack seat prope rly res train ed fo r
t h eir age and size. The ai rbag on the passenger
s ide makes t he front seat a potentia lly dange rous
place for a child to ride . The front seat is not the
safest p lace for a c hild in a forward-fac ing c hild
.,.

Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occu ­
pants .
Fig. 229 Location of driver airbag: in steering wheel
Fig. 230 Location of front passenger's airbag : in the in­
strument panel
Your vehicle is equipped with an "Advanced Air­
bag System" in compliance with United 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 .
The airbag for the driver is in the steer ing wheel
hub ~ fig. 229 and the airbag for the front pas­
senger is in the instrument panel
~ fig. 230. The
general location of the airbags is marked
"AIR ­
BAG" .
There is a lot you need to know about the airbags
in your vehicle. We urge you to read the detailed
information about airbags, safety belts and child
safety in this and the other chapters that make
lL ~ up the owner's literature. Please be sure to heed
~ the WARNINGS -they are extreme ly important N ...... 0 0 :c ' Airbag system
for your safety and the safety of your passengers,
especially infants and small children.
A WARNING
-
Never rely on airbags alone for protection.
- Even when they deploy, airbags provide only
supplemental 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 children, will receive
serious injuries and can even be killed by be­ ing too close to the airbag when it inflates.
- Although the Advanced Airbag System in
your vehicle is designed to turn off the front
passenger airbag if an infant or a small child
is on the front passenger seat, nobody can
absolutely guarantee that deployment un­
der these specia l conditions is impossib le in
all conceivable situations that may happen
during the useful life of your vehicle.
- The Advanced Airbag System can dep loy in
accordance with the "low risk" opt ion under
the U.S. Federal Standard if a child that is
heavier than the typical one-year old child is
on the front passenger seat and the other
conditions for airbag deployment are met.
- Accident statistics have shown that children
are generally safer in the rear seat area than
in the front seating position.
- For their own safety, all children, especially
12 years and younger, should always ride in
the back properly restrained for their age
and size.
Advanced front airbag system
Your vehicle is equipped with a front Advanced
Airbag System in compliance with United States Federal 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 .
IJJ,,
231

Airbag syste m
passenger seat contains important parts of the
Advanced Airbag System, you must take care to
prevent it from being damaged . Damage to the
seat may prevent the Advanced A irbag for the
front passenger seat from doing its job in a
crash .
The front Ad vanced Airb ag S ystem con sist s
o f the follo wing :
-Crash sensors in the front of the vehicle that
measure vehicle acceleration/decelerat ion to
provide information to the Advanced Airbag
System about the severity of the crash .
- An electron ic control un it, with integrated
crash sensors for front and side impacts . The
contro l unit "decides " whether to fire the front
airbags based on the information received from
the crash sensors. The contro l unit also "de ­
cides" whether the safety be lt pretensioners
sho uld be activated.
-An Advanced Airbag with gas generator and
contro l valve for the driver inside the steering
whee l hub .
-An Advanced Airbag with gas generator and
contro l valve inside the instrument pane l for
the front passenger.
- A weight -sensing mat unde r th e upho lstery
padding of the front passenger seat cushion
that meas ures the tota l weight on the seat . T he
information registered is sent continuously to
the e lec tronic control unit to regu la te dep loy­
ment of the front Adva need A irbag on the pas ­
senger side .
- An airbag monitoring system and indicator
light in the instrument cluster
c> page 23 7 .
- A sensor in each front sea t registers the dis­
tance between the respective seat and the
steering wheel or instrument panel. The infor­
mation reg istered is sent continuously to the
electronic cont rol u nit to regulate deployment
of the fro nt Advanced A irbags.
- T he
PASSENGER AIR BAG OFF light comes on
and stays on in the center of the instr ument
pane l
c> page 23 7, fig. 232 and tells you w hen
the front Advanced Airbag on the passenger side has been turned off.
-A sensor be low the safety belt latch fo r the
front seat passenger to meas ure the tension on
234
the sa fety be lt. The tension on the safety belt
and the weight registered by the weight -sens­
ing mat he lp the contro l unit "decide" whether
the front airbag for the front passenger seat
should be turned
off or not c> page 228, Child
restraints on the front seat -some important
things to know .
-A sensor in the safety belt latch for the driver
and for the front seat passenger that senses
whether that safety belt is latched or not and
transmits this informat ion to the e lectronic
cont rol u nit.
_&, WARNING
Da mage to the front passenge r seat can pre ­
vent the front airbag from work ing prope rly .
- I mp roper repair or disassembly of the front
passenger and driver seat will p revent the
Advanced Airbag System from functioning
proper ly.
-Repairs to the front passenger seat mus t be
performed by qualified and proper ly trained
workshop personne l.
- Never remove the front passenger or driver seat from the vehicle.
-Never remove the upholstery from the front
passenger seat.
-N ever d is a ssemble o r remove pa rts from the
seat or disconnect wi res from it.
- N ever carry sharp objects in your pocke ts or
p lace them on the seat. If the weight-sens ­
ing mat in the passenger seat is p unctured
it ca nnot work proper ly.
- Never carry things on your lap or carry ob­
jects on the passenger seat. S uch items can
increase t he weight reg istered by the
weight-sensing mat and send the wrong in­ formation to the a irbag control u nit.
- Never store items under the front passenger
seat . Parts of the Advanced Airbag System
under the passenger seat cou ld be dam­
aged, preventing them and the airbag sys­
tem from worki ng p roperly.
- Never place seat covers or replacement up­
holstery that have not been specifically ap­
proved by A ud i on the front seats.
- Seat covers can prevent the Advanced A ir­
bag System from recognizi ng ch ild

the doors, over or near the area marked
"AIRBAG" on the steering wheel, instru­
ment pane l, seat backrests or between
those areas and yourself . These objects
cou ld cause injury in a crash, especially
when the airbags inflate .
-Never recline the front passenge r's seat to
transport objects. Items ca n also move into
the area of the side airbag o r the front air­
bag during bra king or in a sudden maneu­
ver. Objects near the airbags can become
projectiles and cause in jury, particularly
when the seat is reclined.
A WARNING
T he fine dust created when airbags deploy can
cause breathing problems for people with a
history of asthma or other breathing condi­
tions.
-To reduce the risk of breathing problems,
those w ith asthma or other respiratory con­
ditions should get fresh air right away by
gett ing out of the veh icle or opening w in­
dows or doo rs.
-If you are in a collision in which airbags de­
ploy, wash your hands and face with mild
soap and water before eat ing .
-Be careful not to get the dust into your eyes,
or into any cuts or scratches .
-If the residue should get into your eyes,
flush them with water.
Monitoring the
Advanced Airbag System
~ ( USA models )/!{ (Canada models )
Airbag monitoring indicator light
Two separate indicators monitor the function of
the Advanced Airbag System: the airbag moni­
toring indicator light and the
PASSENGER AIR
BAG OFF
light.
The Advanced Airbag System (including the elec­
tron ic control unit, sensor c ircuits and system
~ wir ing) is monitored continuously to make sure
;:::: that it is funct ion ing prope rly whenever the igni-
" ~ tion is on. Each time you switch on the ignition,
~ the airbag monitoring indicator light fl (USA ' Airbag system
models)/EI (Canada models) w ill come on for a
few seconds (se lf diagnostics).
The system must be inspected when the
indicator light
II (USA models)tE,I (Canada
models) :
-does not come on when the ignition is switched
on,
-does not go out a few seconds after you have
sw itched on the ignition, or
-comes on while driving.
If an airbag system malfunction is detec ted, the
indica tor light will come on to serve as a constant
reminder to have the system inspected immedi­
ately .
If a malfu nction occurs that turns the front air­
bag on the passenger side off, the
PASSENGER
AIR BAG OFF
light will come on and stay on
whenever the ignition is on.
A WARNING
An airbag system that is not functioning prop­
erly cannot prov ide supplemental protect ion
i n a fronta l crash.
-If the airbag indicator light ¢ page 23
comes when the veh icle is being used, have
the system inspected immediately by your
author ized Audi dealer.
It is poss ible that
the airbag will inflate when it is not sup­
posed to, or w ill not inf late when it should.
PASSENGER AIR BAG OFF light
Fi g. 232 Sect io n from th e instrument panel: PASSENGER
AIR BAG O FF lig ht
T he PASSENGER AIR BAG OFF light is located in
the center of the instrument
panel ¢ fig. 232. Ill>
237

u. co ..... N
" N ..... 0 0 :c ' his or her back up against the backrest and the
backrest is not reclined ¢
page 209, Correct
passenger seating positions,
- the adult is not taking weig ht off the seat by
holding on to the passenger assist handle
above the front passenger door or supporting
their we ight on the armrest,
- the safety be lt is being properly worn and that
there is not a lot of slack in the safety belt web­
bing,
- accessory seat covers or cushions or other
th ings that may cause an incorrect read ing or
impression on the weight-sens ing mat under
the upholstery of the seat have been removed
from the front passenge r seat,
- a safety belt extender has not been left in the
safety belt latch for the front passenger seat.
In addition to the
PASSENGER AIR BAG OFF
light in the center of the instrument panel, the
message
PAS SENG ER AIR BAG OFF or PAS SEN­
GER AIR BAG ON
w ill br iefly appear in the instru­
ment cluster display . T his is to inform the dr iver
of the curre nt front passenge r airbag status.
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
An airbag system that is not funct ioning prop­
erly cannot provide supplemental p rotection
in a frontal crash .
- If the airbag indicator l ight¢
page 23
comes when the vehicle is be ing used, have
the system inspected immed iate ly by yo ur
au thori zed Au di dealer. It is possible that
the a irbag will in flate when it is not s up­
posed to, or will not inflate when it shou ld .
A WARNING
If the front airbag inflates, a child without a
child restraint, or in a rearward-facing child
safety seat, or in a forward-facing child re­
straint that has not been properly installed
w ill be seriously injured and can be killed.
- Even though your veh icle is equipped with
an Advanced Airbag System, make certain
that all ch ild ren, especially 12 years and
Airbag syste m
younger, always ride on the bac k seat prop­
erly rest rained for the ir age and s ize.
- Always install forward or rea r-facing child
seats on the rea r seat
-even w ith an Ad­
vanced Airbag System.
- If you must install a rea rward-facing child
seat on the front passenger seat because o f
except ional circumstances and the
PASSEN­
GER AIR BAG OFF
light does not appear and
s tay on, immed iate ly ins tall the rea r-facing
child sea t in a rear seat ing pos ition and have
the airbag system inspected by your Audi
deale r.
- A tight tether or other strap on a rearward­
facing ch ild restraint attached to the front
p a ssenger se at c an put too much pressure
on the weight-sensing mat in the seat and
register more weight than is actually on the
seat . The heav ier weight registered can
make the system work as though an adu lt
were on the seat and deploy the Advanced
Airbag when it must be suppressed causing
serio us or even fatal injury to the child .
- If, in exceptional circumstances, you must
install a forward-facing child restraint on
the front passenge r seat, always move the
seat into its rearmost position in the seat 's
fore and aft ad justment range, as far away
from the airbag as poss ible. The back res t
m ust be adjusted to an upr igh t position.
Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the time
wheneve r the ignit ion 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 tak ing the steps
described above, make sure the adult is p roperly sea ted and restra ined a t one of the
rear sea ting posit ions.
- Have the ai rbag system inspected by your
Aud i deale r before transpo rting anyone on
the front passenge r seat.
239

Airbag syste m
(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 w ill be turned off,
and the
PASSEN GER AIR BAG OFF light will
stay on.
Repair, care and disposal of the airbags
Parts of the a irbag system are installed at many
d ifferent p laces on your Aud i. Install ing, remov­
i n g, servic ing o r repa iring a part in an area of the
ve hicle can damage a pa rt of an airbag system
and prevent that system from working properly
in a co llision .
There are some important t hings yo u have to
know to make sure th at the effect iveness of the
system wi ll not be impaired and that dis carded
components do not cause injury or pollute the
environment .
A WARNING
Improper care, serv icing and repair proce­
dures can increase the r isk 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
i ng wheel horn pad or a irbag cover or the in­
strument pa ne l or mod ify them in any way.
-Never attach any objects such as cup holders
o r te lephone mount ings to the surfaces cov­
er ing the ai rbag units.
-For cleaning the horn pad or instrument
pane l, use on ly a soft, dry cloth or one mois­
tened with plain water. Solvents or cleaners cou ld damage the airbag cover or change
the stiffness or st rengt h of the materia l so
t h at the airbag cannot dep loy and protect
properly.
-Never repair, adjust, or change any parts of
the airbag system.
-All work on the stee ring wheel, i nstr ument
pane l, front seats or electrical system (in ­
cluding the installation of audio equipment,
ce llular telephones and CB rad ios, etc.)
must be performed by a qualified technician
240
who has the training and specia l equipment
necessary.
-F or any work on the airbag system, we
strong ly recommend that you see yo ur au­
thorized Audi dealer or qualified workshop.
-Never modify the front b umper or parts of
the vehicle body.
- Always make sure that the side airbag can
inflate w ithout interference:
-Never install seat covers or replaceme nt
upholstery ove r the front seatbacks that
have not bee n specific ally app roved by
A udi.
-Neve r use additional seat c ushi ons that
cover the areas where the side airbags in ­
flate.
-Damage to the orig inal seat cove rs o r to
t h e seam in the area of the s ide airb ag
module mus t always be repai red immedi ­
ate ly by an authorized Audi dealer.
-The airb ag sys tem can be act iv a ted only
once . A fter an airbag has in flated, it must
be replaced by an authorized Audi dealer or
qua lified tech nic ian who has the technical
information, train ing and spec ial equ ipment
necessary.
-The airbag system can be deployed only
once. After an airbag has been deployed, it
must be replaced with new rep lacement
parts des igned and approved espec ially for
your Aud i model version. Replacement of
comp lete airbag systems or airbag compo­
nents must be perfo rmed by qualified work­
shops only. M ake sure that any a irb ag se rv ­
ice act ion is entered in your Audi Warranty
& Maintenance booklet under AIRBAG RE ­
PLACEMENT RECORD.
-For safety reasons in severe accidents, the
a lter nator and starter a re separated from
the vehicle battery with a pyrotechnic circu it
interrupter.
-Wo rk on the pyrotechnic c ircuit inte rrupt­
e r must o nly be perfo rmed by a qua lified
dealer
-r isk of an a cciden t!
-If the vehicle or the c ircuit inte rr u pte r is
sc rapped, all appli cable safety p recau tions
mus t be followed.
..,.

lL t:0 ....
'"" ......
'"" .... 0 0 :c ' 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 .
Full y inflated airbags in comb ination with proper­
ly worn safety belts slow down and limit the oc­
cupant's forward movement and help to reduce
the risk of injury.
Important safety instructions on the knee
airbag system
Airbags are 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.
- 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
Airbag system
with the way the airbag deploys or by being
pushed into you as the airbag deploys.
- Never let anybody, especia lly children or
animals r ide 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
<=> page 249, Child safety .
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 235 Side a irbag locatio n in the driver's seat
The side airbags are located in the sides of the
front seat backrests
<=> fig . 235 and the rear back­
r est facing the doors . They are identified by the
word "AIRBAG" .
The side airbag system basically consists of:
-the electronic control module and external side
impact sensors
.,..
243

lL t:0 ....
"' ......
"' .... 0 0 :c ' How supplemental side airbags work
Side airbags deploy instantly and can help re­
duce the risk of upper torso injuries for occu­
pants who are properly restrained.
Fig. 236 Inflated side airbags on left side of vehicle , rea r
side airbag
When the system is triggered, the airbag is filled
with propellant gas and breaks through a seam in the seat surface area marked "AIRBAG". It ex­
pands between the side trim panel and the pas­
senger. In order to help provide this additional protection, the side airbag must inflate within a
fraction of a second at very high speed and with
great force. The supplemental side airbag could
injure you if your seating position is not proper or
upright or if items are located in the area where
the supplemental side airbag expands . This ap­
plies especially to children
~ page 249, Child
safety.
Supplemental side airbags inflate be­
tween the occupant and the door panel on the
side of the vehicle that is struck in certain side
collision
~ fig. 236.
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 upper part
of the body.
A fine dust may develop when the airbag deploys .
This is normal and does not mean there is a fire
in the vehicle.
Airbag system
Important safety instructions on the side
airbag system
Airbags are only supplemental restraints. Always
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 provide supplemental
protection.
_&. WARNING
An inflating side airbag can cause serious or
fatal injury. Improperly wearing safety belts
and improper seating positions increase 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 supple­
mental 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 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 de­ ploy.
- 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.
-
- Objects between you and the airbag can in­
crease the risk of injury in an accident by in­
terfering with the way the airbag unfolds or
.,._
245