BMW 330 Forum : “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.