[jburke4689]

I have a 2014 550i I bought CPO. Right away I noticed the iDrive knob binding. Initially the tech said it was getting to the end of the list and there was a force slowing it down. When I demonstrated the randomness of it they replaced the controller. Eighteen months later it started binding again. I did the procedure outlined on this post and removed the broken plastic ring. Total time five minutes. Thanks to our Russian friends.