Is there a button on the keyless entry that opens all the windows and sunroof?

Hi Raymark! I couldn't find reference to that particular function on your 330I. I suggest giving your local dealers service manager a call. I'm assuming you don't have a manual for your car. You can get one from the dealer and perhaps he can give you the info about this particular function. Good luck!

after unlocking the doors hold down the unlock button it rolls down the windows opens the sunroof and the quarter windows in the back. I own an 04 330ci thats how mine works.

Hold the unlock button on the key for about 3 seconds and you should see all the windows open. You can also clsoe the windows by holding the lock button (BMW LOGO) on the key which closes teh windows and the sunroof.

i dont think us vehicles have the comfort closing feature on the remote.has to be done on the door by hold the key in the door and locking and holding it in the locked position