With help from previous posts on this forum and mbworld.org I was finally able to fix it. It was the rubber hose connection behind the oil filter that connects to the gray hose that leads to the junction box on the passenger side fender. I don't know how long the hose had been disconnected but the head was off last March by the Benz dealership. It could have even came disconnected during an oil change. I was getting nervous about what kind of bill I might have coming to me to fix the complicated (yet simple) system.

Thanks again,
Steve

__________________
1997 E320
1990 Nissan 300ZX Twin Turbo (Stage X+)