Hi,
I have had also a cracked 296 rear wheel 3,5 years ago. Since last monday the replacement wheel losses also pressure (1 bar in 3 days). I will have it checked by my dealer. So still no conclusion that the second one is also cracked, but I am afraid that this is the case.
Does anyone know if BMW Europe has become more willing to compensate 296 owners who have issues? 3 years ago they stated there was no issue with the wheel and the revised version had nothing to do with mechanical issues.
EdP
UPDATE: my tire had a nail in it. Lucky me