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Alarm motion sensor 99 A4

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Old 09-30-1999, 11:35 AM
  #1  
PHOTO64
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Default Alarm motion sensor 99 A4

Can I turn off motion sensor permanently.
It seems the wind blowing the Mcdonalds bags sets it off.
Old 09-30-1999, 11:57 AM
  #2  
bob
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Default Re: Alarm motion sensor 99 A4


there should be a button located on the b pillar (where the seat belt is harnessed to) but down low a few inched above the carpet
Old 09-30-1999, 12:05 PM
  #3  
PHOTO64
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Default Thanks for your response but


I have found that you have to do that every time. I am hoping to disable it forever.
Old 09-30-1999, 12:06 PM
  #4  
Bob
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Default Re: Alarm motion sensor 99 A4


Take apart the b pillar and put some black electrical tape over the sensor??
Old 09-30-1999, 12:23 PM
  #5  
PHOTO64
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Default THANKS I'll try that this weekend.

I was so busy thinking of reprograming the computor I guess I didn't think of the easy way.
Thanks.
Old 09-30-1999, 01:21 PM
  #6  
GaryJ
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Default It's not a motion sensor. I think someone posted that it's a pressure sensor.

As in it registers changes in air pressure (like opening a door). I personally know that if you leave the sunroof open, the wind can set off the alarm. This couldn't happen if it was a motion sensor. Don't know what the effect of putting tape over the sensor would have.

GaryJ
Old 09-30-1999, 07:39 PM
  #7  
mitro
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Default

Mine was disconnected forever. I got the dealer to fix it. pull out the switvh and unplug the wire.
Old 10-01-1999, 04:40 AM
  #8  
Rodney
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Default It's a motion sensor...

It's ultrasonic, as in it uses sound waves to detect movement through the window openings. I physical object must be fairly large to set it off (a hand won't do it, but try to pull your gym bag or breif case out, or stick your head in and BAM it goes off). Wind apparently either sets up some sore of harmonic that sets off the sensor or moves enough air around to trick it into thinking something is in there. Moving aournd inside the vehicle won't do a thing...only moving through the window openings.

Regards,
Rodney

'99 A4 1.8tqms
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