Don't worry about reliability. People post here only when they have problems with X, just like you go to doctor when you are sick. Quite a few members have removed amber markers here. What year is the X5 you want to do this?

Check these posts
http://www.xoutpost.com/x5-e53-forum/...ighlight=clear

http://www.xoutpost.com/x5-e53-forum/...ighlight=clear