Ok, this one is easy...
I was driving home yesterday and when I arrived to my place, the engine jerked a bit, then died. Opened the hood and my co-driver quickly noticed something: "is that normal?". The feed line (the one that goes from the diesel filter to the pump) was in 2 halves, I just put it all together with my hands and no problems today.
The thing is, is that line detachable like that? Or is it broken and will have to pay a visit to the vw stealership?