Moin together, I wanted to listen if there were any problems with the return of the turbo (T4) with regard to tightness here in the round. After a repair, the oil return was leaking to me (or my V40). The whole thing started with a slight smell of burnt oil at the traffic light and finally ended with a kind of octopus function when accelerating on the AB. I had the whole thing repaired (new O-ring and new return tube) and now it starts to smell easily again at the traffic light… According to the mechanic, the tube was under tension in the seat and he easily tried to fix it so that it sits tension-free in the opening. How can it be that even a new part does not fit properly? Because a greeting part like Krummer and Turbo don’t really move?!