2000 X5 Passenger Side Door.

My lock actuator was weak for about a year, sometimes it worked, so I ignored it.

The result of not replacing the weak motor caused another problem.
When the lock did not go up electronically with the motor, I would use the inside door handle to raise the lock.

This worked for about a year until the plastic snapped/broke where the cable attaches to the assembly.

Moral, if the actuator weak or intermittent, replace it before it becomes a bigger problem.

Note, I disconnected the battery to be safe given the air bag removal. I did not unplug the air bag. I would not unplug the airbag cable even with the battery disconnected. Hang it, leave it alone, and be very cautious not to damage or disturb the assembly.