I believe the same result can be achieved simply by unplugging the actuator electrically.
I have done this before quite easily in my old E92 335i without any error codes or noticeable side effects for years. Here's a post on how it was done on an E92:
http://www.e90post.com/forums/showthread.php?t=80661
Anyone know whether we can do the same for the F12/13 650i?