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  1. #1
    MembersZone Subscriber rmoore's Avatar
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    Default Door Airbag Module Exposed

    Had the opportunity to work on a late-model BMW recently. After removing the interior driver's door panel, we were able to expose the door-mounted airbag inflator module. It sort of resembles a stereo speaker unit. It has a stored gas inflator cylinder within the unit itself.

    Note the familiar yellow color wire connector. That is the thin wiring that powers the airbag when it is time to deploy.

    Door-mounted airbag units will be found 1) above the armrest and 2) towards the latch end of the door.

    Here are two images of the airbag unit...
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    Ron Moore, Forum Moderator
    www.universityofextrication.com


  2. #2
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    Ron, do you happen to know what the maximum inflation depth of these airbags are (thinking the 5", 10" and 20" rule here)? I am really curious if the 5" for side airbags is enough.
    "Be LOUD, Be PROUD..... It just might save your can someday when goin' through an intersection!!!!!"

    Life on the Truck (Quint) is good.....

    Eat til you're sleepy..... Sleep til you're hungry..... And repeat.....

  3. #3
    MembersZone Subscriber rmoore's Avatar
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    Our general rule regarding airbag deployment or inflation zones has remained accurate even as newer and newer airbag systems are being introduced. This is something that we have used as a guide when discussing airbag safety since 1991 when I first introduced this concept. Originally we used 10"-18"-5" but the driver's bag got a little bigger in some newer vehicles so we now use the 20" deployment or inflation zone number.

    It is still valid to use the "10" - 20" - 5" guide when talking airbag inflation zones; 10" for the driver frontal bag, 20" for the passenger's frontal bag, and 5" for side impact airbags.

    The difference in that 5 inch number however is that a door, seat-mounted, or roof-mounted side impact airbag may only pop out 5 inches but it can be as long as the vehicle. The new Dodge minivan with third row seating has a 9 foot-long roof-mounted airbag.

    So, it's 10" - 20" and a long 5"!
    Ron Moore, Forum Moderator
    www.universityofextrication.com

  4. #4
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    Very cool, thanks I'll make sure to pass that to the Guys at work.
    "Be LOUD, Be PROUD..... It just might save your can someday when goin' through an intersection!!!!!"

    Life on the Truck (Quint) is good.....

    Eat til you're sleepy..... Sleep til you're hungry..... And repeat.....

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