Hi All,
I've been tracking down rattles in my center console on my X1 e84 xdrive35i. I found this tucked way up inside the center console, that blue line is the rubber band that goes around the cup holder tensioners. Picture is from the bottom of the center console pointing upwards. Seems this parts purpose is only to rattle the steel ball.
Anyway, I took it out and discovered the center console storage area latch seemed loose, but still worked. It is essentially a steel ball that rattles inside a plastic housing, see second image, so I put double sided tape on both sides and reinstalled it. This wasn't the main rattle, but it was contributing.
Thanks,
Dervin.