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Old 07-12-2007, 05:01 PM
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Join Date: Nov 2006
Location: Western North carolina
Posts: 3
malfunctioning alarm system

My 91' 300sl has started sounding the alarm (horn and lights) without reason, which has not endeared me with my neighbors. How do I disarm the alarm system permanently? Thought the unit was under the passengers side floorboard. I disconnected two black pins to what I thought was the unit - it wasn't. Called a MB mechanic I use at home and he said the unit was located under the hood. I looked where he said and couldn't find it ( said it would be labeled Becker). Can anyone help or offer any suggestions? Thanks so much.
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Old 07-14-2007, 09:57 AM
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Join Date: May 2001
Location: Las Vegas, Atlanta
Posts: 669
The alarm module is in the trunk and is mounted above the battery (picture).
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malfunctioning alarm system-ata-control-module.jpg  
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