Hello together Yesterday I bought a Opel Movano (Renault Master II, 2.5 CDTI 114 hp) – I am actually satisfied so far – if not a point that I noticed: My passenger behind me said he was short-lived after about 80 km driving back (or smoke, it was dark) short-term I had a strange noise in the car (heard how very strong wind sounds) and some power loss. Just looked and found a hose the leak is where every m tight oil? Diesel? Out has come (see spray wall) The problem had been had by the previous owner. Can the soot and the power loss come from it? To my knowledge, a diesel if the fuel is not completely burned, i.e. if too little air is mixed. And above all, what exactly is this hose and where do I get it from? Thank you very much.