Thanks to info from Jeremy and other owners of 96 and 97 E300D's, I am ready to take on a few jobs on my 209K mile car:

-Eliminate P0200 and associated P1975 codes that are popping up (resonance switchover valve not actuating)
-Clean crossover and intake manifold (they are dirty)
-Replace any hoses, o-rings, etc that may be a problem as long as I am in here

I removed the crossover and top cover, and took some pics to show what it looks like before. Do you see the oil (or is it fuel) that has filled up the rearmost well? The front-most ones look pretty clean by comparison. For those that have done this, what do I need to replace? Part numbers? The cleaning part I can handle, may even take to a place that can dip clean the manifold and crossover. For the rest of it I am looking for input.

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