warning light AUDI Q5 2015 Repair Manual

Safety belts
Autom atic safet y belt retractors
Every safety belt is eq uipped w ith an automatic
be lt retractor on the shou lder belt. This feature
locks the belt when the be lt is pulled o ut fast,
during hard brak ing and in an accident . The belt
may also lock when you drive up or down a steep
hill or through a sharp curve. During normal driv­
ing the belt lets you move freely.
S afety belt pre te n sioners
The safety be lts are equipped with a belt preten­
sioner that helps to t ighten the safety belt and
remove s lack when the pretensioner is activated .
The function of the pretensioner is monitored by
a warning light
r:::') page 16.
Swi tchable lo cking feature
Every safety belt except the one on the driver
seat is equipped w ith a switchable locking fea­
ture that
must be used when the safety belt is
used to attach a child safety seat. Be sure to read
the important informat ion about th is feature
r=;, page 181 .
.&_ WARNING
Improperly positioned safety belts can cause
ser ious injury in an accident¢
page 148,
Safe ty belt position.
- Safety belts offer optimum protection only
when the seatback is upright and belts are
properly positioned on the body.
- Always make sure that the rea r seat back­
rest to which t he center rear safety belt is
attached is securely latched whenever the
rear center safety belt is being used . If the
backrest is not securely latched, the passen ­
ger will move forward with the backrest dur­
ing sudden braking, in a sudden maneuver
and especially in a crash.
- Never attach the safety belt to the buck le
for another seat. Attaching the belt to the
wrong buckle will reduce safety be lt effec­
t iveness and can cause serious persona l in­
jury .
- A passenger who is not properly restrained
can be se riously in ju red by the safety belt it­
self when it moves from the stronger parts
148
of the body into critical areas like the abdo­
men.
- Always lock the convertible locking retractor
when you are secur ing a child safety seat in
the vehicle
r=;, page 183.
Safety belt position
Correct belt position is the key to getting maxi­
mum protection from safety belts .
Fig. 161 Safety belt posit ion
-"' .... 9 I ... a,
Standard features o n your veh icle help you adjust
the position of the safety belt to match your body
s ize .
- belt he ight adjustment fo r the front seats,
- height-adjustable front seats.
.&_ WARNING
Imp roperly posit ioned safety be lts can cause
serious pe rsonal injury i n an accident.
- The shou lder belt should lie as close to the
center of the collar bone as possib le and
should fit well on the body . Ho ld the belt
above the latch to ngue and pull it evenly
across the chest so that it sit s as low as pos­
sib le on the pe lvis and there is no pressure
on the abdomen . The belt should always fit
snug ly ¢
fig. 161. Pull on the belt to tighten
if necessary.
- The lap be lt po rtion of the safety belt must
be positioned as low as possi ble across pel­
vis and never over the abdomen. Make sure
the belt lies flat and snug
¢fig. 161. Pull on
the belt to tighten if necessary.
- A loose-fitting safety belt can ca use serious
in juries by sh ifting its position on your body
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A WARNING ,~
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 armrest, door
or roof.
- 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 be­
cause 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 authorized Audi dealer.
- Forward-facing child safety seats installed
on the front passenger's seat may interfere
with the deployment of the airbag and cause serious personal injury to the child .
A WARNING
If, in exceptional circumstances, you must in­
stall a forward-facing child restraint on the
front passenger's seat:
-Always make sure the forward-facing seat
has been designed and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and side airbag.
- Never put the forward-facing child restraint
up against or very near the instrument pan­
el.
- Always move the passenger seat into its
rearmost position in the seat's fore and aft
adjustment range, as far away from the air­
bag as possible before installing the for­
ward-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.
Airbag system
A WARNING
To reduce the risk of serious injury, make sure
that the
PASSENGER AIR BAG OFF light will
be displayed whenever a child restraint is in­
stalled on the front passenger seat and the ignition is switched on .
- If the
PASSENGER AIR BAG OFF light does
not stay on, perform the checks described
~ page 162, Monitoring the Advanced Air­
bag System.
- Take the child restraint off the front passen­
ger 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.
-Always carefully follow instructions from
child restraint manufacturers when instal­
ling child restraints.
A WARNING
If, in exceptional circumstances, you must in­
stall a forward or rearward-facing child re­
straint on the front passenger's seat:
- Improper installation of child restraints can
reduce their effectiveness 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 -even
with an Advanced Airbag System.
-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 in­
jury in a crash.
155

Airbag syste m
-a small adu lt or teenager is on the front pas ­
senger seat
- a passenger who is not sitting upright with
their back against a non -reclined backrest with
their feet on the vehicle floor in front of the
seat is on the front passenger seat.
I f the front passenger airbag deploys, the Federal
Standard req uires the airbag to meet the " low
risk" deployment criteria to help reduce the risk
of injury through interaction with the airbag .
"Low risk" deployment occurs in those crashes
that take place at lower decelerations as defined in the electron ic control unit . ¢ page
162
Alw ays re member: Even though your vehicle is
equ ipped w ith Advanced Airbags, the safest place
for children is properly restrained on the back
seat . Please be sure to read the important infor ­
mat ion in the sections that follow and be sure to
heed a ll of the WARNINGS.
_& WARNING
To reduce the ris k of injury when an airbag in­
fla tes, always wear safety belts proper ly.
- If you are unrestrained, leaning fo rward, s it­
t ing s ideways or out of position in any way,
your risk of injury is much higher .
- You w ill also receive serious inju ries and
could even be killed if you are up against the
airbag or too close to it when it inflates -
even with an Advanced Airbag ¢page
152.
_& WARNING
A child in a rearward-facing child safety seat
installed on the front passenger seat will be
ser iously injured and can be killed if the front
airbag inflates - even w ith an Advanced Airbag
System.
- Although the Advanced Airbag System in
your vehicle is designed to turn off the front
airbag when a rearward -facing child re­
straint has been installed on the front pas­
senger seat, nobody can absolutely guaran­
tee that deployment is impossible in al l con­
ceivable s ituations that may happen dur ing
the usef ul life o f your vehicle .
- The inflating a irbag w il l hit the child safety
seat or infant carrier wi th great force and
158
w ill smash the child safety seat and child
aga inst the backrest, center armrest, door,
or roof.
- Always install rearward-facing chi ld re­
straints in the back seat.
- If you must insta ll a rearward fac ing ch ild
safety seat on the front passenger seat be­
cause of exceptional circumstances and the
PAS SENGER 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 au thorized Aud i dealer .
_& WARNING
If, in exceptiona l circumstances, you must in­
stall a forwa rd-facing child restra int on the
front passenger's seat:
- Always ma ke sure the forward-facing sea t
has been des igned and certif ied by its man ­
ufacturer for use on a front seat with a pas­
senger front and s ide a irbag .
- Never p ut the fo rward-facing child restraint
up against or very near the instrument pan ­
el.
-Always move the passenger seat into its
rearmost position in the seat's fore and aft
ad justment range, as far away from the a ir­
bag as poss ible, before insta lling the for­
ward-facing child restraint. The backrest
must be adjusted to an upr ight position .
- Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the time
whenever the ign it ion is switched on.
Advanced Airbag System components
The front passenger seat in your vehicle has a lot
of ve ry impo rtant parts of the Advanced A irbag
System in it. These pa rts include the we ight ­
sensing mat, senso rs, w iring, bracke ts, and more.
The function of the system in the front passenge r
seat is checked by the e lectronic control unit
when the ignition is on. The control unit mon itors
the Advanced Airbag System and turns the airbag i ndicator light on when a malfunct io n in the sys­
tem components is detected. The function of the
a irbag indicator light is described in greate r

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detail below . Because the front passenger seat
contains important parts of the Advanced Airbag
System, yo u must take care to prevent it from be­
ing damaged. Damage to the seat may prevent
the Advanced Airbag for the front passenger seat
from do ing its job in a crash .
The front Ad vanced Airb ag S ystem con sis ts
of the following :
-Crash sensors in the front of the veh icle that
measure veh icle acceleration/deceleration to
provide information to the Advanced Airbag
System about the severity of the crash .
- An electronic control unit, with integrated
crash sensors for front and side impacts . The
control unit "decides" whether to fire the front
airbags based on the information received from
the crash sensors . T he control un it also "de­
cides" whether the safety be lt pretensioners
sho uld be activated.
- An Advanced Airbag with gas generator and
control valve for the driver inside the steering
whee l hub.
- An Advanced Airbag with gas generator and
control valve inside the instrument panel for
t h e front passenger.
- A weig ht-sensing mat under the upholstery
padding of the front passenger seat cushion
that meas ures the tota l weight on the seat. The
information registered is sent cont in uous ly to
the e lectronic control unit to regulate dep loy­
ment of the front Advanced Airbag on the pas­
senger side.
- An airbag monitoring system and indicator
light in the instrument cluster
¢ page 162.
-A sensor in each front seat registers the dis­
tance between the respect ive seat and the
steering wheel or instrument panel. The infor­
mation registered is sent cont inuously to the
elect ron ic cont ro l unit to regulate deployment
of the front Advanced Airbags.
- T he
PASSENGER AIR BAG OFF light comes on
and stays on in the center of the i nstrument
pane l¢
page 162, fig . 168 and tells you when
the front Advanced Ai rbag on the passenger
side has been turned
off .
-A sensor below the safety belt la tch fo r the
front seat passenge r to measure the tension on
Airbag syste m
the sa fe ty belt. The tens ion on the safety be lt
and the weight registe red by the weight -sens­
ing mat help the control unit "decide" whether
the front a irbag for the front passenger seat
should be turned
off or not¢ page 153, 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
transm its this informat ion to the elect ro nic
cont ro l unit.
A WARNING
D amage to the fron t passenger seat can pre­
vent the fron t air bag from working prope rly.
- Imp roper repai r or d isassembly of the front
passenger and driver sea t will prevent the
Advanced Airbag System from functioning properly .
- Repairs to the front passenge r seat must be
performed by qualified and p roperly trained
workshop personne l.
- Never remove the front passenger or driver seat from the vehicle .
- Never remove the upho lstery from the front
passenger seat.
- Never d isassemble o r remove par ts from the
seat or disconnect w ires from it.
- Never carry sh arp objects in yo ur po ckets or
p la ce them on t he seat.
If the weight-sens­
ing mat in the passenger seat is punctu red
it cannot work properly .
- Never carry things on yo ur lap or carry ob ­
jects on the passenger seat. S uch items can
increase the we ight registe red by the
weight-sensing mat and send the wrong in­
formation to the a irbag control unit.
- Never store items under the front passenger
seat . Parts of the Advanced Airbag System
under the passenger seat could be dam­
aged, p reventing them and the airbag sys­
tem from wo rking prope rly.
- Never p lace seat covers or rep lacement up­
holstery that have not been specifically ap­
p roved by Aud i on the front seats.
- Seat covers can prevent the Advanced Air­ bag System from recognizing child
159

Airbag system
restraints or occupants on the front passen­
ger seat and prevent the side airbag in the
seat backrest from deploying properly.
- Never use cushions, pillows, blankets or
similar items on the front passenger seat.
The additional padding will prevent the
weight-sensing mat in the seat from accu­ rately registering the child restraint or per­
son on the seat and prevent the Advanced
Airbag System from functioning properly.
- If you must use a child restraint on the front
passenger seat and the child restraint man­
ufacturer's instructions require the use of a
towel, foam cushion or something else to
properly position the child restraint, make
certain that the
PASSENGER AIR BAG OFF
light comes on and stays on whenever the
child restraint is installed on the front pas­
senger seat.
- If the
PASSENGER AIR BAG OFF light does
not come on and stay on, immediately in­
stall child restraint in a rear seating position
and have the airbag system inspected by
your authorized Audi dealer.
How the Advanced Airbag System
components work together
The front Advanced Airbag System and the side
airbags supplement the protection offered by the
front three-point safety belts with pretensioners and load limiters and the adjustable head re­
straints to help reduce the risk of injury in a wide
range of accident and crash situations. Be sure to
read the important information about safety and
heed the WARNINGS in this chapter.
Deployment of the Advanced Airbag System and
the activation of the safety belt pretensioners de­
pend on the deceleration measured by the crash
sensors and registered by the electronic control
unit . Crash severity depends on speed and decel­
eration as well as the mass and stiffness of the
vehicle or object involved in the crash.
On the passenger side, regardless of safety belt
use, the airbag will be turned off if the weight on
the passenger seat is less than the amount pro­
grammed in the electronic control unit . The front
160
airbag on the passenger side will also be turned
off if one of the child safety seats that has been
certified under Federal Motor Vehicle Safety
Standard 208 has been recognized on the seat.
The
PASSENGER AIR BAG OFF light comes on
and stays on to tell you when the front Advanced
Airbag on the passenger side has been turned off
¢ page 153, Child restraints on the front seat ­
some important things to know .
.&_ WARNING
To reduce the risk of injury when an airbag in­
flates, always wear safety belts properly.
- If you are unrestrained, leaning forward, sit­
ting sideways or out of position in any way,
your risk of injury is much higher.
- You
will also receive serious injuries and
could even be killed if you are up against the
airbag or too close to it when it inflates -
even with an Advanced Airbag
r::!;> page 152.
More important things to know about front
airbags
Fig. 167 Inflated front airbags
0
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Safety belts are important to help keep front seat
occupants in the proper seated position so that
airbags can unfold properly and provide supple­
mental protection in a frontal collision.
The front airbags are designed to provide addi­
tiona l protection for the chest and face of the
driver and the front seat passenger when:
- safety belts are worn properly,
- the seats have been positioned so that the oc-
cupant is properly seated as far as possible
from the airbag, .,._

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-and the head restraints have been p roperly ad -
justed.
Because airbags inflate in the blink of an eye w ith
great force, things you have on yo ur lap o r have
p laced on the seat cou ld become dangerous p ro­
jectiles, and be pushed into yo u if the airbag in­
flates.
When an a irbag deploys, fine dust is released.
This is normal and is not caused by a fire in the
vehicle. This dust is made up mostly of a powder
used to lubricate the airbags as they dep loy. It
could irr itate skin.
It is important to remember that whi le the sup ­
p lemental airbag system is designed to reduce
the likelihood of serious in juries, other injur ies,
for example swell ing, bruising and minor abra­
sions, can also happen when a irbags inf late. Air­
bags do not protect the arms or the lower parts
of the body. Front airbags o nly supplement the
three point safety belts in some frontal col lisions
i n which the veh icle deceleration is high enough
to deploy the airbags.
F ront airbags will not deploy:
- if the ign it io n is switched off when a crash oc -
curs,
- in s ide collisions,
- in rear-end collisions,
- in ro llovers,
- when the crash deceleration measured by the airbag system is less than the minimum thresh ­
o ld needed for airbag deployment as registered
by the electronic control un it.
Th e front pa ssenger airbag will al so not
depl oy:
-when the front passenger seat is not occupied,
- when the weight on the front passenger seat as
sensed by the Advanced Airbag System indi­
cates that the front airbag on the passenger
s ide has to be turned off by the electronic con­
trol unit (the
PA SSENGER AIR BAG OFF light
comes on and stays on) .
A WARNING
Sitting in the wrong position can increase the
risk of se rious injury in crashes .
Airbag syste m
- To reduce the risk of injury when the airbags
inflate, the driver and passengers must al­
ways sit in an upright pos ition, must not
lean aga inst or place any part of the ir body
too close to the area where the a irbags are
located.
- Occupants who are unbelted, out of position
or too close to the airbag can be seriously
in ju red by an a irbag as it unfo lds with great
for ce in the blink ofan eye
Qpage 153.
A WARNING
A child in a rearward-fac ing ch ild safety sea t
i nsta lled on the front passenger seat w ill be
se riously inju red and can be killed if the front
a irbag inflates - even with an Advanced Airbag
System .
- The inflating airbag will hit the child safety
seat o r infant carrier with great force and
will smash the child safety seat and child
aga inst the backrest, center armrest, door
or roof.
- Always install rear-fac ing ch ild safety seats
on the rear seat.
- If you must install a rearwa rd fac ing child
safety seat on the front passenger seat be­
cause of except ional circumstances and the
PASS ENG ER AIR BAG OFF light does not
come on and stay on, immediately install
the rear-facing child safety seat in a rear
seating posi tion and have the airbag system
inspected by your authori zed Audi dealer .
A WARNING
Objects between you and the airbag will in­
crease the risk of injury in a crash by interfe r­
ing with the way the airbag unfolds or by be ­
ing p ushed into you as the airbag inflates .
- Never hold things in yo ur hands or on your
lap when the vehicle is in use .
- Never transpo rt items on or in the a rea of
the front passenger seat. Objects could move into the area of the front airbags dur­
ing brak ing or other sudden maneuver and
become dangerous project iles that can
cause serious persona l injury if the a irbags
inflate.
161

Airb ag syst em
-Never place or attach accessories or other
objects (such as cupholders, telephone
brackets, large, heavy or bulky objects) on
the doors, over or near the area marked "AIRBAG" on the steer ing wheel, instru­
ment pane l, seat backrests or between
those areas and yourself. These obje cts
could cause injury in a crash, e specially
when the airbags inflate.
- Never recline the front passenger's seat to
transport objec ts . Items can also move into
t h e area of the side airbag or the front air ­
bag dur ing braking or in a sudden maneu·
ver. Objects near the airbags can become
projectiles and cause injury, part icularly
when the seat is reclined.
A WARNING
The f ine dust created when a irbags dep loy can
cause breathing problems for people with a
history of asthma or other breathing condi­
tions .
- To reduce the r isk of breathing problems,
those w ith asthma or other resp iratory con­
ditions should g et fr esh air r ight away by
get ting out of the vehicle o r opening w in ­
dows or door s.
- If you are in a col lision in w hich a irbags de­
p loy, wash your hand s and fa ce wi th mild
soap and water before eating.
- Be caref ul not to get the dus t into you r eyes,
or into any cuts or s cratches.
- If the residue should get into you r eyes,
flush them with water.
Monitoring the
Advanced Airbag System
Airbag monitoring indicator light
Two separa te 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· tronic control unit, sensor circuits and system
w iri ng) is monitored cont inuous ly to make sure
that it is funct ion ing properly whenever the ign i·
162
tion is on . Each time you t urn on the ignit ion, the
airbag monitoring indicator light
II wi ll come on
for a few seconds (self diagnostics).
The sy stem must be inspected when th e
indicat or light
fB :
-does not come on when the ignition is sw itched
on,
- does not go out a few seconds after you have
switched on t he ignit ion, or
- comes on wh ile driving.
If an airbag system malfunction is detected, t he
i ndic ator light will fi rst s tart flashing to catch the
dr iver's at ten tion and the n st ay on con tinuo usly
to serve as a constant reminder to have the sys ­
tem inspected immediately .
If a malfu nction occurs that turns the front air ­
bag on the passenge r side off, the
PASSENGER
AIR BAG OFF
light will come on and stay on
whenever the ignit ion is on .
A WARNING
An airbag system that is not functioning prop­
erly cannot provide supplemental protection in a frontal crash.
- If the airbag ind icator light
c> page 16
comes when the vehicle is being used, have
the system inspected immediately by your
author ized Audi dealer .
It is possible that
the airbag will inflate when it is not sup·
posed to, or will not inflate when i t should.
PASSENGER AIR BAG OFF light
Fig. 168 Sec tion fro m t he in strument panel: PASSENGER
AIR BAG O FF ligh t
The PASSENGER AIR BAG OFF light is loca ted in
the center of the inst rument panel
c> fig . 168. ..,.

Airbag syste m
his or her back up against the backrest and the
backrest is not reclined
r::!>page 136, Correct
passenger seating positions,
- the adu lt is not taking weight off the seat by
holding on to the passenger assist handle
above the front passenger door or supporting
their weight on the armrest,
- the safety belt 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
things that may cause an incorrect reading or impression on the weight-sens ing mat under
the upholstery of the seat have been removed
from the front passenger seat,
- a safety be lt extender has not been left in the
safety belt latch for the front passenger seat .
In addition to the
P ASS ENGER AIR BA G OF F
light in the center of the instrument panel, the
message
PASSE NGER A IR BAG OFF or PASSEN­
GER AIR BAG ON
will briefly appear in the instru­
ment cluster display . Thi s is to inform the driver
of the current front passenger airbag status.
Important safety instructions on
monitoring the Advanced Airbag System
A WARNING
An airbag system that is not funct ion ing prop ­
erly cannot prov ide supplementa l protect ion
in a frontal crash.
- If the airbag indicator light
r:!> page 16
comes when the vehicle is being used, have
the system inspected immediate ly by your
authorized Aud i dealer.
It is possible that
the a irbag will inflate when it is not s up­
posed to, or wi ll not inflate when it should.
A WARNING
If the front airbag in flates, a chi ld without a
child restraint, in a rearward-facing child safe­
ty seat or in a forward-facing child restraint
that has not been proper ly installed will be
ser iously injured and can be killed.
- Even though your veh icle is equipped with
an Advanced Airbag System, make certa in
that all ch ildren, especially 12 yea rs and
164
younger, a lways ride on the back seat prop­
erly restrained for their age and size.
- Always install forward or rear-facing child
safety seats on the rear seat -even with an
Advanced A irbag System.
- If you must install a rearward-facing child
safety seat on the front passenger seat be­
cause of exceptiona l circumstances and the
PASSENGER AIR BAG OFF light does not
appear and stay on, immediately insta ll the
rea r-facing chi ld safety seat in a rear seating
position and have the airbag system inspect­
ed by your authori zed Audi dealer .
- A t ight tether or other s trap on a rea rward­
facing chi ld restraint attached to the front
p assenger sea t can put too much pressure
on the weight-sens ing mat in the seat and
reg ister more weight than is actually on the
seat. The heavier weight registered can make the system work as though an adult
were on the seat and deploy the Advanced Airbag when it must be suppressed caus ing
serious or even fatal injury to the child .
- If, in exceptiona l circumstances, you must
install a forward-facing child restraint on
the front passenger seat, always move the seat into i ts rearmost pos ition in the seat's
fore and aft ad justmen t range, as fa r away
from the airbag as possib le. The backrest
m ust be adjusted to an upr ight position.
Make sure that the
PASSENGER AIR BAG
OFF
li ght comes on and stays on all the time
whenever the ignit ion is switched on.
A WARNING
- If the PASS ENGER AIR BAG OF F light does
not go out when an adult is s itting on the
front passenger seat after tak ing the steps
described above, make sure the adult is
prope rly seated and restra ined at one of the
rea r seat ing pos itions.
- Have the airbag system inspected by your
author ized Audi dealer befo re transpo rting
anyone on t he fro nt passenger seat.

Airb ag syst em
@ For the sake of the environment
Undep loyed airbag modu les and pretension­
ers m ight be classified as Perchlorate Mater ia l
-special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlo­ rate. When the vehicle or parts of the re­
straint system including a irbag modules safe­
ty belts with pretensioners are scrapped, all
app licab le laws and regu lations must be ob­
served. Your authori zed A udi dealer is fami lia r
w ith these requirements and we recommend
that you have yo ur dealer perform this service
for you.
Other things that can affect Advanced
Airbag performance
Changing the vehicle 's suspension system can
change the way that the Advanced A irbag System
pe rforms in a crash. For example, using t ire-rim
comb inat ions not approved by Audi, lowering the
ve hicl e, chang ing the stiffness of the suspension,
including the spr ings, suspension s truts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
electronic control un it. Some suspension changes
can, for example, increase the force leve ls meas­
ured by the sensors and make the airbag system
deploy in c rashes in which it wo uld not deploy if
the changes had not been made. Other ki nds of
changes may reduce the force levels measured by
the sensors and preve nt the airbag from deploy­
i n g when i t should .
A WARNING
Changing the vehicle's s uspension including
use of unapproved ti re -rim comb inations can
change Advanced A irbag pe rformance and in ­
crease t he risk of serious persona l injury in a
crash.
- Never install suspension components that do not have the same performance charac­
teristics as the components or iginally insta l­
led on your veh icle .
- Never use tire-rim combinations that have
not been approved by Audi .
166
A WARNING
Items stored between the safety be lt b uckle
and the center console can cause the sensors i n the buckle to send the wrong informat ion
to the electronic control module a nd prevent
the Adva nced Airbag System from wor king
properly .
- Always ma ke sure that nothing can interfere
w it h the safe ty belt bu ckles an d that they
are no t obstr ucted.
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
F ig. 169 S ide ai rbag locat io n in th e dr ive r's seat
The side airbags are located in the sides of the
fron t seat backrests ~
fig. 169 and the rear back­
res t* fa cing the doors. They are identified by the
word "AIRBA G".
The side airbag sy stem bas ically consi st s of :
-the electron ic control module and external side
impact sensors
- the two airbags located in the s ides of the front
backrests and the two airbags* located in the
rear backrest
- the airbag warning light in the instrument clus-
ter.
The airbag system is monitored e lectronically to
make certain that it is functioning properly at all
times. Each time you turn on the ignit ion, the air­
bag system indicator light w ill come on for a few
seconds (self d iagnost ics) .
II>-

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rl I.O
"' N
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The side airbag system supplements the safety be lts and can he lp to reduce the risk of injury to
the dr iver's and front passenger's upper torso on
the side of the vehicle that is struck in a side col­ lision . The airbag deploys only in side impacts
and only when the veh icle acceleration registe red
by the control unit is high enough . If th is rate is
be low the reference value programmed into the
control unit, the side ai rbags wi ll not be trig­
gered, even though the car may be bad ly dam­
aged as a result of the collision .
It is not possible
to define an airbag triggering range that will cov­
er every possible angle of impact, since the cir­
cumstances will vary considerably between one
coll is ion and another. Important factors include,
for example, the nature (hard or soft) of the im­ pacting object, the ang le of impact, vehicle
speed, etc .
r::;:,page 168, Important safety in­
structions on the side airbag system .
Aside from their normal safety function, safety
be lts work to help keep the driver or front pas ­
senger in pos it ion in the event of a side collision
so that the s ide a irbags can provide 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 side airbag system can only
he lp to p rotect you if you are wear ing your safety
be lt and wearing i t properly. This is ano ther rea­
son why you shou ld always wear your sa fety
be lts, not just because the law requires you to do
so
r::;;, page 144, General information.
It is important to remember that while the sup ­
p lemental side airbag system is designed to re­
duce the likelihood of serious injuries, other inju­ ries, for examp le, swe lling, bruising, and minor
abrasions can also be associated with deployed
side airbags. Remember too, side airbags will de­ ploy only once and only in certain kinds of acci­
dents -your safety belts are always there to offer
protection.
Vehicle damage, repair costs or even the lack of
vehicle damage are not necessarily an indication
of over -sens itive or fa iled a irbag activation . In
some coll isions, both front and s ide airbags may
i nflate. Remember too, that airbags will deploy
only once and only in ce rtain kinds of collisions -
Airb ag system
you r safety belts are always there to offer protec­
tion in those accidents in which airbags are not supposed to deploy or when they have already
deployed .
The side airbag sy ste m w ill not deploy :
-when the ignit ion is turned off
- in side co llisions whe n the acceleration meas-
ured by the sensor is too low
- in front-end collisions
- in rear-end collisions
- in rollovers .
In some types of accidents the front airbags, side
curtain airbags and side airbags may be triggered
together.
A WARNING
-- Safety belts and the airbag system will only
provide p rotection when occ upants are in
the proper seating position
r::;;, page 168.
- If the airbag ind icator light r::;:, page 16
comes when the veh icle is being used, have
the system inspected immedia tely by your
author ized Audi dealer.
It is possib le tha t
the airbag will inflate when i t is not sup­
posed to, or will not inflate when it should.
How supplemental side airbags work
Side airbags deploy instantly and can help re­
duce the risk of upper torso injuries for occu­
pants who ore properly restrained.
Fig. 170 Inflated s ide a irbags o n left s ide o f vehicle
9 a: (D Cl)
When the system is triggered, the a irbag 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
ll>
167