[brio]

Hey guys, I need some help. I have a 2006 E90. My left rear door is stuck closed and locked. When I hit the unlock button, it does nothing for that door. You do hear the click in the door though. When I hit lock for all doors, that door pops the lock lever up and down repeatedly about 5 times and then stays locked. I'm almost certain it's the actuator that has failed. I've seen a few DIYs on replacing the actuator but all done with the door open. I'm not sure how I can do this with the door closed and locked, or if its even possible.
I really don't want to take it into the Stealer to get ripped!

Any suggestions will be greatly appreciated. Thanks.