00Mercedes320

I am doing valve cover gaskets/breather covers tomorrow and special ordered the seal for the oil neck to be replaced (figured I would do it all in one shot). I need to know how the neck filler comes off? Is it a twist off? If it is which way do I twist it? Because I can move it back and forth a tad but I think since the oil cap comes off by twisting it to the left the neck/filler would be the opposite? Any help would be greatly appreciated.

00Mercedes320

Bump