On a vehicle with electric locks the process is a bit different.
E39 door lock actuator replacement.
Replace the door lock actuator bolts and screws.
This is a relatively easy diy about a 5 or 6 out of 10 but there are some tricks to doing it quickly and properly.
And two hours to troubleshoot.
Also for bimmerfest members its free see link below for a great how to.
E39 owners just some supplement tips regarding the removal and operation of the door actuator and latching mechanism.
The following is a diy to replace the front door lock actuator.
Reattach the clips and cables.
Then reinstall the two 10mm bolts above and below the location of the door lock actuator to secure the actuator.
Reinstall the three screws into the door lock to secure it in the door.
On manual locks the locking function operates by pushing or pulling on the door lock.
How a door lock actuator works.
The job of the door latch is to latch the door to the body of the car.
Reconnect the metal cables near the door handle by connecting the.
As well as having an actuator it also has position switches so the body computer and instrument cluster knows and can warn you when the door is open.
On bmw e39 models the power door lock actuator is integrated with the latch.