Barely had the thing a month & get a call from the missis whilst at work today (why do they do that?) to say there's problems.
From what she described, started juddering whilst driving, running rough & engine management light came on. She was practically home when it happened but it also stalled a few times when the clutch was depressed.
I'm back home later so I'll get the INPA plugged in but I'm already thinking VANOS solenoid. Perhaps I'm jumping the gun a little here but I've heard that this is quite common with these, especially when they've been serviced according to BMW (oil every 20k) but if I see a cam position sensor code then that could be it.
Place your bets now!