
164 Airbag system
Remember too, airbags will deploy only once
and on ly in certain k inds of accidents -your
safety belts are always there to offer protec
tion in those accidents in which airbags are
not supposed to deploy or when they have al
ready deployed, for example when your veh i
cle strikes or is struck by another after the
first coll is ion .
This is just one of the reasons why an airbag is
not a substitute for the safety belt . The airbag
system works most effectively when used with
the safety belts . Therefore, always wear your
safety be lts correctly .
It is important to remember that while the
supplemental knee airbag system is designed
to reduce the likelihood of serious injuries,
other injuries , for example , swell ing, bruising
and minor abrasions and friction burns can al
so occur when an airbag inflates.
The knee airbag system basically consists
of:
- The elec tronic con trol module
- T wo inflatab le airbags (airbag and gas gen-
erator), one fo r the driver and one for the
front passenger
- T he airbag indicator light in the instrument
panel
The knee airbag system will not deploy:
-when the ign ition is switched off
- in frontal collisions when the deceleration
measured by the control unit is too low
- in side collisions
- in rear-end collisions
- in rollovers
- i n the event of a system malfunction (warn-
i ng/indicator light is on)
Q page 20.
.8, WARNING
-Safety belts and the airbag system can
only provide protection when occupants
are in the proper seating posit ion
Q page 156.
-If the airbag indicator light¢ page 20
tur ns on when the vehicle is being used,
have the system inspected immediately
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by your authorized Audi dealer. It is pos
sible that the airbag will inflate when it
is not supposed to, or will not inflate
when it should .
How knee airbags work
Applies to vehicles: wi th knee airbags
The risk of injury to the leg area can be re
duced by fully inflated knee airbags.
Fig . 145 Inflated a irbags protecting in a fronta l co lli
sion
The knee airbag system has been designed so
that the airbags for the driver and front pas
senger deploy in certa in but not all frontal
collisions.
If the front airbags dep loy, the knee airbags
also dep loy in frontal collisions when the de
ployment threshold stored in the control unit
is met.
When the system deploys, the airbags fill
with a compressed propellant gas, and inf late
between the lower part of the instrument
panel and the driver and the lower part of the
instrument panel and the front passenger
Qpage 156, fig. 142.
Although they are not a soft pillow, they can
"cushion" the impact and in th is way they can
help to reduce the risk of injury to the lower
extremit ies .
All of th is takes place in the blink of an eye, so
fast that many people don't even realize that
the a irbags have deployed . The airbags also
i nflate with a great deal of force and it is im
portant for occupant safety that nothing
shou ld be in their way when they deploy. ..,.

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Fully inflated airbags in combination with
properly worn safety belts slow down and lim
it the occupant's forward movement and help
to reduce the risk of injury.
Important safety instructions on the
knee airbag system
App lies to vehicles: with knee airbags
Airbags are only supplemen tal restraints. Al
ways 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
injury. Wearing safety belts incorrectly and
improper 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 ad
justing their seat positions, it is impor
tant 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/instru
ment 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 wearing your safety belt. The risk in
creases even more should the airbag de ploy.
- Always make sure that the knee airbag can inflate without interference. Objects
between you and the airbag can increase
the risk of injury in an accident by inter
fering with the way the airbag deploys or
Airbag system 165
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 de
ploys, this can result in serious or fatal
injuries.
- Never carry objects of any kind in the
footwell area in front of the driver's or
passenger's seat. Bulky objects (shop
ping bags, for example) can interfere
with or prevent proper deployment of
the airbag. Small objects can be
thrown through the vehicle if the air bag deploys and injure you or your pas
sengers .
- Make sure there are no cracks, deep scratches or other damage in the area of
the instrument panel where the knee air
bags are located.
- If children are incorrectly seated, their
risk of injury increases in a collision
~page 169, Child Safety .
Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.
Fig. 146 Side a irbag locatio n in the driver's seat
The side airbags are located in the sides of the
front seat backrests~
fig. 146 ..
The side airbags installed for the front seating
positions have been designed and certified to
help reduce the risk of injury that can be
caused by airbags when they inflate, particu -
larly when the occupant sitting next to it is .,..

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-Always read and heed all WARNINGS
whenever using a child restraint in ave
hicle
¢ page 138, Safety belts,
¢ page 146, Airbag system and
¢ page 169, Important things to
know.
(D Tips
Always replace child restraints that were
installed in a vehicle during a crash. Dam
age to a child restraint that is not visible
could cause it to fail in another collision
situation.
Advanced front airbag system and children
Your vehicle is equipped with a front "Ad
vanced Airbag System" in compliance with United States Federal Motor Vehicle Safety
Standard (FMVSS) 208 as applicable at the
time your vehicle was manufactured .
The Advanced Airbag system in your vehicle
has been certified to meet the "low-risk" re
quirements for 3-and 6-year old children on
the passenger side and small adults on the
driver side. The low risk deployment criteria
are intended to reduce the risk of injury
through interaction with the airbag that can
occur, for example, by being too close to the
steering wheel and instrument panel when
the airbag inflates . In addition, the system
has been certified to comply with the "sup
pression" requirements of the Safety Stand
ard, to turn off the front airbag for infants up
to 12 months who are restrained on the front passenger seat in child restraints that are list
ed in the Standard .
Even though your vehicle is equipped with an
Advanced Airbag system, all children, espe
cially those 12 years and younger, should al
ways ride in the back seat properly restrained
for their age and size. The airbag on the pas
senger side makes the front seat a potentially
dangerous place for a child to ride. The front
seat is not the safest place fo r a child in a for
ward-facing child safety seat. It can be a very
Child Safety 1 71
dangerous place for an infant or a larger child
in a rearward-facing seat.
The vehicle's Advanced Airbag System has a
capacitive passenger detection system in the
front passenger seat cushion that can detect
the presence of a baby or a child in a child re
straint system on this seat.
The capacitive passenger detection system
registers the changes that result in an electri
cal field when a child, a child restraint, and a
baby blanket are on the front passenger seat .
The change in the measured capacitance due
to the presence of a child, a child restraint,
and a baby blanket on the front passenger
seat is related to the child restraint system resting on the seat . The measured capacitance
of a child restraint system varies depending
on the type of system and specific make and model.
The electrical capacitance of the various
types, makes, and models of child restraints
specified by the U.S.National Highway Traffic
Safety Administration (NH TSA) in the relevant
safety standard are stored in the Advanced
Airbag System control unit together with the capacitances typical of infants and a 1-year
old child. When a child restraint is used on the
front passenger seat with a typical 1 year-old infant, the Advanced Airbag System compares
the capacitance measured by the capacitive passenger detection system with the data
stored in the electronic control unit.
Child restraints and Advanced front
airbag system
Regardless of the child restraint that you use,
make sure that it has been certified to meet
United States Federal Motor Vehicle Safety
Standards and has been certified by its manu
facturer for use with an airbag. Always be sure
that the child restraint is properly installed at
one of the rear seating positions. If in excep
tional circumstances you must use it on the
front passenger seat, ca refully read all of the
information on child safety and Advanced Air-
bags and heed all of the applicable ..,.
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fan belt or other moving components or do not come into contact w ith hot
components. T ie back long hair before
beginning work and do not wear cloth ing that can hang down into the en
g ine .
- Limit your exposure to exhaust and
chemicals to as short a time as poss ible
c::;, &. .
& WARNING
California P ropos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certain veh icle components conta in
o r emit chemicals known to the State of
Californ ia to cause cancer and b irth de
fec ts and reproduct ive harm . In addition,
certain fluids conta ined in vehicles and
certain products of component wear con
tain or emit chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac
cessories contain lead and lead com pounds , chemicals known to the State of
Californ ia to cause cancer a nd reproduc
t ive harms . Wash hands after handling .
(D Note
When filling fluids, be sure not to m ix the
fluids up. Othe rwise severe malfunctions
and e ng ine damage will occur .
@ For the sake of the environment
You should regularly check the ground un
der your vehicle in orde r to detect leaks
quickly . If there are visible spots from oil
or other fluids, b ring your veh icle to an au
thori zed Audi dealer or qualified repair fa
cility to be checked .
Checking and Fillin g 215
Opening the hood
The hood is released from the interior .
Fig. 163 Se ct io n fro m t he dr iver 's footwell : release Lev ·
er
Fi g. 1 64 Rocke r sw it ch under t he hood
Make sure the wiper arms are not raised up
from the windshield. Otherwise the paint could be damaged .
... With the drive r's door open, pull the lever
be low the instrument panel in the direction
of the arrow
¢ fig. 163.
.,. Raise the hood slightly c::;, ,A .
.,. Press the lever under the hood upward
¢ fig . 164 . This releases the catch .
.,. Open the hood .
& WARNING
Never open the hood whe n you see that
steam or coo lant drips from the engine
compartment -there is a danger of b urns!
Wait unti l no steam or coolant flows o ut.
- Never open the hood when you see that
steam or coolant dr ips from the engine
compartment- there is a danger of burns! Wait until no steam or coo lant
flows out.
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