Jim,
the oil is primarily between the ignition switch (dripping) and the port on the back of hte fuel pump. Some has also worked its way out to the splitter in the engine compartment that looks like Neptunes Trident.
I'm fairly sure that the vac. pump gasket is shot; pieces of it are hanging in clear view. However, there is very little oil in the rest of the lines.
So, how does one replace that mechanism?
Thank you,

__________________
Paul
2004 E500 4matic; 72,000mi