Hello, would anyone happen to know where the line at the back of the om651 engine leads to? And why it would be leaking oil? I’m thinking possibly a drain for the valve galley in the center of the valve cover where the injectors go, or maybe a tattle tale from the cylinder heads or over flow from the engine block/ oil pan..




I’ve ordered a valve cover gasket but I’m hoping someone could shed some light before I start disassembly. I’ll attach photos of the hose in question it’s routed down the drivers side of the engine and is tethered to the side of the bellhousing. It is #240 in the diagram. Thanks -Ryan