I have a 2002 E53 3.0i (purchased used) It has the button on the steering wheel for bluetooth but I don't think it has the bluetooth module installed. Did all of them come with that same type of steering wheel. It also has the overhead mic. While I had the car running I used my Samsung phone to try and detect bluetooth but it came up with nothing. Also I can find no indication of when the car was built. Anyone know if I have bluetooth?