[QueenCityLurker]

Hi all,
I think I might have this figured out but wanted to post for folks to review my thoughts/diagnosis on this issue and sanity check me here.

Symptoms:
Driver side door will not lock/unlock with finger on handle.
Driver door will not lock/unlock using the key fob.
Only way to lock the driver door is using the physical key. Once the door is locked using the physical key, it cannot be unlocked with the key fob or the lock button on the dash. I have to open the passenger door, reach across and grab the driver side door handle from inside the car and then it will unlock.

Passenger door and trunk both lock/unlock fine using the key fob.
Passenger door will open via hand on the handle (Comfort Access functionality).

So I'm suspecting a faulty door actuator.
Is my thinking correct here? Am I missing anything? I checked all fuses and they all appear fine.

If it is the actuator, is it part #1 in the diagram? BMW part# 51217229461?

[lllRazorlll]

You would have to scan the car to know for sure if it is the actuator, but unfortunately this issue is common on F chassis cars. I had this issue myself on the passenger door.

[COSENT27]

Sounds like it’s the door lock actuator. Had my passenger rear actuator go bad at around 130k miles. Coincidentally the same door my daughter has been using since she has been 3 years old .

Mine was a Very easy diy replacement.

Most important tool for the job is auto trim removal kit because you have to pop off the handle trim and don’t want to be gnarly that plastic. Got a kit off amazon for $10, well worth it if you’re planning to diy.