..And here is what I see at idle, cold- BTW- This thing is getting REALLY hard to start

Am I going in the right direction?

Thanks a lot guys. Mike

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'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E