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152
Airbag
syst em
examp le, increase the force levels measured
by the sensors and make the airbag system
deploy in crashes in wh ich it would not deploy
if the changes had not been made. Other
kinds of changes may reduce the force levels
measured by the sensors and prevent the air-
bag from deploying when it should .
The sensors in the safety belt buckle for the
driver and front passenger seat tell the elec-
tronic control module if the safety belt is
latched or not. If the safety belt is being used,
the front airbag will deploy at a slightly high-
er rate of vehicle deceleration than if the safe-
ty belt is not being used. Therefo re, in a par-
ticular collision, it is poss ible that an airbag
will not deploy at a seating position where the
safety belt is being used but will inflate at the
position where the safety belt is not being
used.
It
is important that nothing interfere
with the safety belt buckles so that the sen-
sors can send the correct information about
safety belt use to the electron ic cont ro l unit.
A
WARNING
Changing the vehicle 's suspension includ-
ing use of unapproved t ire-rim combina-
tions can change Advanced Airbag per-
formance and increase the risk of serious
personal inju ry in a crash.
- Never ins t all suspens io n components
that do not have the same performance
characteristics as the components origi-
nally insta lled on your vehicle.
- Never use tire- rim combinations that
have not been approved by Audi.
~
WARNING
-
Items stored between the safety belt
buckle and the center console can cause
the senso rs in the buckle to send the
wrong informat ion to the elect ronic con-
trol modu le and prevent the Advanced Air-
bag System from wor king proper ly.
- Always make sure that noth ing can inte r-
fere with the safety belt buckles and that
they are not obstructed.
Knee
airbags
Description of knee airbags
Applies to vehicles: with knee airbags
The knee airbag system can provide supple-
mental protection to properly restrained
front seat occupants .
Fig. 1 36 Driver's knee airbag
The driver knee airbag is in t he ins t rumen t
pane l underneath t he steering whee l
¢
fig. 136, the knee airbag for the passenger
is at about the same height in the instrument
pane l underneath the g love compartment.
The knee airbag offe rs additional protection
to the driver 's and passenger's knees and up-
per and lower th igh areas and supplements
the protection provided by the safety belts.
If t he front airbags dep loy, the knee airbags
also dep loy in frontal coll isio ns when the de-
ployment thresho ld stored in the contro l unit
is met
¢
page 146, More important things to
know about front airbags .
In add ition to their norma l safety function,
safety belts help keep the dr iver or front pas-
senger in position in a fronta l collision so that
the a irbags can provide supplemental
protec-
t ion .
The airbag system is not a substit ute for your
safety belt . Rather, it is part of the overa ll oc-
cupant restra int system in your vehicle. Al-
ways remember that the a irbag system can
only help to protect you if you are weari ng
your safety belt and wea ring it proper ly. This
is why you should always wear your safety
belt, not jus t be ca use the law requi res you to
do so r::!;>
page 129, General notes .
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