desertdiesel

Found my coolant leak sorry it’s hard to take a pic of, there’s a hard coolant line that goes from the block and around the oil filter canister. It has another little line that comes off of it and goes somewhere else. Mercedes says the “assembly” is $500 and would have to ship from Germany. Does anyone know what this is called or if I can replace an o ring in there? I can try to take better pics if needed. Just looking for some solutions