Hi,
I don't know if this topic was posted before. I pick up my car yesterday and my SA show me a cool feature to roll down all windows and open sunroof. My car is 2007 328XI Sedan. Here is how it works.
1. Press Unlock key once to open driver door
2. Press Unlock key again to open all doors
3. Then, hold down Unlock key for at least 15 seconds, you will see all your windows are rolling down and sunroof is opened. I don't know if this feature applies to 2006 model. Try it today
-CN