Hi, Im new to the group and apologise if I've posted this in the wrong forum. I have a w208 200K with an M111 engine and am looking to replace the Engine Camshaft Magnet A1110510177. However I am struggling to find the plug A1119970186 and the respective O ring. According to Mercedes, the schematic diagram doesn't list an O ring seal for the M111 engine and the plug has been discontinued. Happy days.