My OM642 we are worried again. Yesterday I found that he lost oil at the front. Not so much that it drips onto the road, but it arrived in the floor covering. I had just removed it. The belt discs of the rib belt are partially contaminated, on the rib belt is also what and even some aluminum chips irritated me. The highest point of the oiling is to be seen where the vibration damper is for the loading air. So where is it? the metal charge air pipe goes from the turbo into the small box. It tends to be more on the left front of the engine front and then pulls back in small quantities to the end of the oil tank. Perhaps the oil cooler as a typical construction site? But the oiling is higher than the drain bore on the left side of the engine block and above all further forward, because it is just on the wedge belt. Does anyone have an idea or an experience?