I'm trying to fix a problem that has now jumped from one problem to another.

94 E320 100,000 miles. I've had the car for roughly 70,000 miles.

I had two independent observations on the leaking oil problem both said "head gasket". I ended up finding a mechanic with solid experience working on German cars but not a 94 e320. After the head was off I inspected it and came to the conclusion there was nothing wrong with the head gasket. The gasket/seal was not compromised. (My background is diesel engine rebuilding.)

New gaskets were put on during re-assembled and the oil leak(s) have stopped. Enough said here.

Now the engine runs extremely rough. The mechanic is telling me that some MB mechanic told him (sight unseen) the wiring harness is shot and needs to be replaced. I drove the car home only 1 mile and barely made it. I smell a gasoline.

The wiring harness is original. Prior to making this repair the car ran good except the oil leakage. The build on the VIN/OEM nameplate note 2/94. Can anyone provide some sound guidance.

I need to get this car back running normally.