Unfortunately I can't offer any advice on your code, but I do have a question based on your comment about vibration. How smooth is your idle typically? Can you feel it in the seat and wheel at all? I've got an '08 48i and I don't think it idles well. All of my past bimmers have been so silky smooth that you have to look at the tach to be sure it's running. This one isn't like that. Normal?