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2003 Mercedes Benz S430 Siren going off randomly

  

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Good Afternoon Everyone!

I have my Mercedes Benz I've had for over three years gifted by my boss that's causing me issues recently. The siren kepts going off randomly with the hazard light flashing. I've already replaced the car battery which was drained and old. That's kind-of helped but it'll still ongoing issue.

Only issues ongoing with the car is the Driver side door locking mechanism is not working and does not lock properly with the remote unless someone locks it manual form the inside but that's been that's way for months now, this current issue with the siren going off is fairly recent and unsure if there any correlation. Haven't seen the check engine light or any indication to give me any ideas as well.

Any advice or guidance of what else I could do would be of great help. I live out here in Los Angeles CA.

2003 Mercedes Benz S430 4Matic with 60,000 miles with clean title


3 Answers
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Posted by: @gew

I would just remove the siren

and then I would remove the car


{pear}:laughingoutloud:


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Man, you bought one of the most electronic plagued problem car out there. Any minor electrical flaw will turn the alarm on. That's how the alarm system works if it sees an electrical drain It thinks somebody is opening the door and stealing the car. Somewhere. You got shorts and find it in that monstrosity oh man, good luck on that one. See my video fixing battery drain on your car but realize that car has scores of computer modules on any of them shorting out. Can do that


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I would just remove the siren


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