When using the keyfob or the dash button for locking or unlocking the doors the jammed door actuator tries times to complete the lock unlock action.
Ml320 door lock actuator problem.
Actuator usually to blame for broken power locks.
Another problem with the actuator has to do with worn mechanical linkage shearer says or when a latch assembly halts the motor.
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The actuator can break down when the motor doesn t receive the electrical current anymore or if it s unable to react to the current says david shearer owner of soundwerk car audio systems in fort worth texas.
The second solution is practically free.
All other doors lock in sucession of each other after the car is in motion i have to use key on the passenger side door to unlock my car i have not had this problem fixed i push the door lock down on the drivers front and rear doors to lock my car and push the lock button on center console to lock the other doors.
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We were planning on repairing it but ended up needing to replace the full.
There is a couple of ways to fix this problem.
What you need to do is to apply a small amount of tape to the door lock pin.
First you can replace the door lock actuator which can cost from 150 to 450 depending on if you try to fix it yourself or have the dealer fix the problem.
Drivers door has stopped locking or unlocking with remote key.
The actuators for the individual doors get damaged and jammed thus not responding to the motor when it tries to lock or unlcok the door.