I wonder during what timeframe during production these bolts were not torqued properly.... I have a Dec 2005 production date and with 121 000 KM I don't have any of the common issues with the 2006 e90's.
No water pump replacement, engine head ticking or replacement, oil leaks, etc. I just had a coil replaced 1k ago but I do make the old school maintenance on the car though and I think that might have helped. I drive the car like a sport sedan should be driven but really don't abuse it very hard...