Add some spacers to push out the rims slightly
I actually have 4 8mm spacers that will probably solve your issue for sale:
http://www.e90post.com/forums/showthread.php?t=909563
FYI - I'm running 12mm spacers on my F25 X3 winter setup to bring my winter rims (261M's) back to OEM F25 offset specs. No issues at all
http://x3.xbimmers.com/forums/showth...highlight=261m