2002 X5 3.0 - Doors won't lock with key, or center button

[andrewwynn]

If none of the doors are locking/unlocking the problem should not be in the actuator.

I've rebuilt about 5 of these. Failure mode is always intermittent at first and usually also will work one way like lock, but not unlock.

he also will fill one at a time.

A door switch stuck in open position will prevent locking but also should show up on the dash.

[SaltLifeCI]

Originally Posted by andrewwynn

If none of the doors are locking/unlocking the problem should not be in the actuator.

Currently, I think the issue was the door lock tumbler pin being broken.

That part that goes from the Driver door lock into the door actuator came out in 2 pieces. That pin with the round 4 point end was separated from the lock tumbler. I found the locking U shaped nut that holds that longer pin together split in half in the lower part of the door well.

One other thing I noticed before taking the door apart was the manual door lock was stuck and you couldn't press it down to lock the door.

I have ordered a door lock cylinder repair kit, and we'll see if that fixes the issue.