Have a look at this site to find the details of your current wheels. Felgen-Katalog - BMW-Treff - der Treffpunkt für alle BMW-Fans und -Fahrer , once you have that information look at the details of the rims that you are considering. You'll probably find that your current offset is around the +20 figure. If you vary too much from this you'll most likely hit issues with the width of the rim and/or tires. I went from 235/60/16 tire on a 16x7.5 +20 rim, to a staggered 245/45/19 & 275/40/19 on 19x9/10 +24 setup without any issues, although there isn't a real lot of extra room left.
A forum community dedicated to all BMW owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more for your favorite models!