164 Airbag syst em
experience, informat ion and specia l
too ls necessary to perform the work
safely.
- If the vehicle or the circuit interrupter
is scrapped, all applicable safety pre-
cautions must be followed.
@ For the sake of the environment
Undeployed airbag modu les and preten-
sioners might be classified as Perchlorate
Material - special handling may apply, see
www.dtsc.ca.gov/haza rdouswaste/per-
chlorate. When the vehicle or parts of the
restraint system including airbag modules
and safety belts wit h pretens ioners are
scrapped, a ll applicable laws and regula-
tions mus t be observed. Your au t hori zed
Audi dea le r is familiar with these requi re-
ments and we recommend that you have
your dea ler perfo rm 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 Sys-
tem pe rforms in a crash. For example, us ing
tire-r im combinations not app roved by Audi,
lowering t he vehicle, changing t he stiffness of
the suspension, including the springs, suspen -
sion struts, 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 exam-
ple, increase the force levels measured by the
sensors a nd make the airbag system deploy in
crashes in which it would not dep loy if the
changes had not been made . Other kinds of
chan ges may reduce the force levels meas-
ured by the sensors and prevent the airbag
from deploying when it sho uld.
The senso rs in the safety belt buckle fo r t he
driver and front passe nger sea t 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 dep loy at a slightly high-
er rate of vehicle deceleration than if the safe-
ty belt is not being used. Therefore, in a par-
t icu lar collision, it is possible that an airbag
will not dep loy at a seat ing position where the
safety belt is be ing used but will inflate at the
pos ition where the safety belt is not being
used. It is important that nothing interfere
with t he safety be lt buckles so that the sen -
sors can send the correct info rmation about
safety belt use to the electronic control un it .
_&. WARNING
Changi ng the vehicle's suspension includ -
ing use of unapp roved tire-rim combina-
tions can change Advanced Airbag per-
formance and increase the risk of serious
pe rsonal injury in a crash .
- Never install suspension components
that do not have the same pe rformance
characteristics as the components origi-
na lly installed on your vehicle.
- Never use tire-rim combinations that
have not been approved by Audi.
Knee airbags
Description of knee airbags
Applies to vehicles : wi th knee airbags
The knee airbag system can provide supple-
mental protection to properly restrained
front seat occupants .
Fig. 161 Driver's knee airbag
The dr iver knee airbag is in t he inst rument
pane l underneath the steering wheel
~ fig. 161, the airbag for the passenger is at
about the same height in the instrument pan-
el underneat h the glove compartment. .,.
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