One of my cupholders won't spring out anymore. When I get it out the bottom does not spring down. Anyone manage to fix this? I'm assuming the spring is misaligned somehow.

I asked about the cup holders specifically when I bought my 328i. They said, "we haven't had any problems with them, but if you do... just bring it in and we'll fix it under warranty"

That is true. They will replace the entire module.