Question about 2003 Mercedes-Benz E-Class

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2003 Mercedes E32O with a machine gun door lock

I have a 2003 Mercedes E320. When I try to lock the using the infra red key/remote, the rear door drivers side sounds like a machine gun, popping up and down several times. Sometimes locking, sometimes not locking and this is a real problem leaving an unlocked car unintentionally on the street in DC.

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  • Ryan Jasper
    Ryan Jasper May 11, 2010

    It's called machine gunning and it was much more of a problem with ml's.There is a micro switch that goes bad in the lock actuator and the actuator does not know what position the lock is in. You will have to replace the lr door lock actuator

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  • 22 Answers

You have to replace door lock completely , there is small plastic gear on electric motor which moves locking mechanism and seems that gear is broken, but it is not available as separate part.

Posted on Nov 03, 2009

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