Not sure if I'm supposed to start a new thread or post here. Correct me if wrong please...
I too am experiencing the vacuum nightmare with my 1993 300D. I purchased her 6 months ago. I found a ball bearing blocking the EGR system and the EGR valve stuck shut. Since opening the line, replacing some vacuum lines, and freeing up the EGR, I have improved performance/fuel mileage, BUT, Still the following:
-23 seconds for 0-60
-hard (delayed) shift from 2nd to 3rd (unless I let off accelerator)
-sluggish/pathetic uphills
-no cruise control
-poor acceleration
Any advise would be greatly appreciated. I tried to get some codes using a homemade code reader I assembled but it did no blink. Was basically a flashlight with a button when hooked up
M goal is to get the vehicle running correctly in stock set-up so I have a solid baseline from which to upgrade. Thanks!