Actually, not all openers are equal. Don't understand why. But clearly my BMW 3-series is able to open my garage door as I pass my neighbor's house approaching my driveway. On my MB S-Class, I have to actually be on the drive way for it to reach (worse opener in any of my cars).

RVAS69. Why don't you mention it the next time your car is in service. Maybe they can replace the opener.

or you can try this:
http://www.bimmerfest.com/forums/sho...ht=garage+door
(no idea if this works. But it's a funny/cool post)