Originally Posted by suginami

No, the engine wiring harnesses were fixed in mid-year 1995, according to Stevebfl (Steve Brotherton).

I know a bit about these cars as my 1993 300E (3.2) "E320" suffered from all of the weak points during my ownership: engine wiring harness (replaced under goodwill warranty), head gasket, throttle actuator, etc.

If you really want to read replies from an expert on these cars, do a search of Arthur Dalton's posts.