So I'm Leaving behind my beloved BMW 545 ( getting to the point where fuel economy nod maintenance is blowing a large hole in my pocket)

So was thinking of switching to the new 3 series but then realised the space comparison meant it would have to be the f10.

Looking at a 520diesel or 525 diesel, and maybe an early production model read through the forum and there seems to be some issues on the petrol engine (fuel hose issues in the early models)

Was wondering if there is anything I need to look out for or issues people have come across with early build f10 Diesel engines