I just changed the tranny fliud and filter in my 97 e320, while I was under the crate turning the torque converter around to be drained, I noticed oil coming from around the head gasket. Can anyone shed some light on this, can the head bolts be retorqued, if so what is the torque specs and sequence? Or does the head gasket need replaced, can someone show me how to do it? Greasy garage in Ohio