Airb
ag sy
ste
m
combinations
not
approved by Audi, lowering
the
vehicle, changing
the
stiffness
of
the
suspension,
including
the
springs,
suspension
struts,
shock
absorbers
etc. can
change
the
forces
that
are
measured
by
the
airbag
sensors
and
sent
to
the
electronic
control
unit
.
Some
suspension
changes
can, for
example,
i
ncrease
the
force levels
meas-
ured
by
the
sensors
and
make
the
airbag
system
deploy
in
crashes
in
which
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
airbag
from
deploy-
ing when
it
should.
_&.
WARNING
Changing
the
vehicle's
suspension
including
use
of
unapproved tire-rim
combinations
can
change
Advanced Airbag
performance
and
in-
crease
the
risk
of
serious
personal
injury
in
a
crash.
- Never install
suspension
components
that
do
not
have
the
same
performance
charac-
teristics
as
the
components
originally instal-
led
on
your
vehicle.
- Never use tire-rim
combinations
that
have
not
been
approved by Audi.
Knee
airbags
Description
of
knee airbags
The
knee airbag system can provide supplemen-
tal protection to properly restrained front
seat
occupants.
Fig. 1
59
Driver's
knee
airbag
The driver knee airbag is
in
the
instrument
panel
underneath
the
steering
wheel
Q
fig.
159,
the
airbag for
the
passenger
is
at
about
the
same
204
height
in
the
instrument
panel
underneath
the
glove
compartment.
The knee airbag offers
additional
protection
to
the
driver's and
passenger's
knees
and
upper
and
lower thigh
areas
and
supplements
the
protec-
tion provided by
the
safety
belts
.
If
the
front
airbags
deploy, t he knee
airbags
also
deploy
in
frontal
collisions
when
the
deployment
threshold
stored
in
the
control
unit
is
met
Qpage
197,
More
important things to know
about
front airbags.
In
addition
to
their
normal
safety
function,
safe-
ty
belts
help keep
the
driver
or
front
passenger
in
position
in
a
frontal
collision
so
that
the
airbags
can provide
supplemental
protection.
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
airbag
system
can only help
to
protect
you if you
are
wearing your
safety
belt
and wearing it properly. This
is
why you
should
always
wear
your
safety
belt,
not
just
be
ca
use
t he law requires you
to
do
so
~
page 180, Gener-
al notes.
Remember
too,
airbags
will deploy only once
and
only
in
certain kinds
of
accidents
-your
safety
belts
are
always
there
to
offer
protection
in
those
accidents
in
which airbags
are
not
supposed
to
deploy
or
when
they
have already deployed, for
example
when
your
vehicle
strikes
or
is
struck
by
another
after
the
first
collision.
This
is
just
one
of
the
reasons
why an airbag
is
not
a
substitute
for
the
safety
be
l
t.
The airbag
system
works
most
effectively
when
used
with
the
safety
belts.
Therefore, always
wear
your
safety
belts
correctly.
It
is
important
to
remember
that
while
the
sup-
plemental
knee
airbag
system
is
designed
to
re-
duce
the
likelihood
of
serious
injuries,
other
inju-
ries, for
example,
swelling, bruising
and
minor
abrasions
and friction
burns
can also occur
when
an airbag inflates.
The knee airbag system basically
con
si
sts
of
:
- The electronic
control
module
.,.
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