The lock & the latch are one mechanism. This is going from memory, so I hope I don't forget anything. To remove
- Disconnect the electrical plug.
- Disconnect the 2 visible actuator rods at the lock end by snapping the plastic clip off the rod and pulling the rod out of the hole.
- Remove the 3 torx bolts holding the whole mechanism in from the rear edge of the door.
- Remove the remaining 2 actuator rods that are around the back side of the mechanism.
I took mine apart down to the plastic housing, cleaned all of the old sticky grease off, lubed with fresh grease and re-installed. I did not take the plastic housing apart. It's a pretty complex mechanism. so I would suggest photos as you take it apart. I got mine back together without them, but it would have been a lot easier with something to reference.
It didn't help though. I ended up with one from the pick-a-part for about $20-$25. It was gunked up even worse than mine, but worked fine when I cleaned it up.