Alarm goes off when locking the door, panic button to stop the beeping - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 01-04-2010, 11:18 AM Thread Starter
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Alarm goes off when locking the door, panic button to stop the beeping

I drive a 2004 CLK320. Recently my car makes a mono tone beeping noise when I lock the door using a keyfob. In order to stop the beeping, I have to hit the panic button then unlock the door. Also, hitting the panic button triggers another off beeping sound but unlocking it make it all stop. Hence, I can't seem to lock my door. Any advice would be greatly appreciated. Thanks in advance for any input.
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post #2 of 2 (permalink) Old 01-04-2010, 11:36 AM
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There has to be an issue with one of the sensors that communicate with the alarm system. For some reason, it thinks one of the doors are open and/or the trunk. I would inspect all the switches to see if they are all working correctly and also check the wiring to the switches to see if one of them may have come loose.

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