Door Lock Actuator DIY Repair for $0
Well before I dropped that much I decided to open up the door to see if I could find anything else it could be.
So I dig in, remove the door panel, remove the door handle, remove the regulator, and eventually get to here.
Destroying a few plastic rivets allows you to remove the door lock actuator assembly.
After releasing plenty of plastic and metal tabs and a staked metal post you can actually get this apart and get the motor out. I found a dirty armature and brushes inside a chinese motor.
A dremel with a brass wire brush and some alcohol and it cleaned up nicely.
Putting it back together will require some ingenuity as far as the plastic rivets go but if you got this far that should be the least of your worries.
Hope this helps someone.




I'm having the same problem. My driver side lock is dead on my ML550.
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