http://www.bimmerfile.com/2011/09/16...ar-or-any-bmw/
I normally buy used...I hope the PO's followed break in instructions lol.
Looks like you shouldn't go over 4500 rpm and accelerate slowly for 1200 miles. Then oil change and you should be good to go. I watched a video a while back where Horse Power Freaks built an S54 engine. They showed how the cylinders of stock motored are misshapen and have burrs etc...so when the pistons run through them the walls get shaved up. A bunch of metal should come out in the first oil change.