There are a lot of good tips, ideas and solutions to problems that can be gleaned from an internet forum like this one; but there is also the reverse, fear and concerns can be raised by reports (many of which are incomplete, or not accurately stated) of serious problems. It would be easy to "spook" a BMW-rookie on here. I think, having had a number of these cars, you just have to carry-on, drive your car, and get the dealer involved early if you do experience a real problem (there will be some, particularly with a new model), but they can be and will be fixed.
Remember that few post about their flawless cars and no-problems experiences, but you hear a lot about the few that have problems. For example, the HPFP problems on the N54 engines were posted at great lengths on forums; but most ppl never had a problem. I drove a 535xi for 21 months with zero issues (as an example only).
Just put it all into perspective and stay cool. Getting fearful or angry never solves the problems.
