I'll check the EGR today. I did it yesterday but I didn't realize the car should be at operating temp.

I went and checked the ohms of the new engine speed sensor that attaches to the trans and it's not testing within spec. I'm not great with a multimeter but whatever ohm setting I used the reading wasn't close to what it should be.

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1985 300CD, CA
172 Anthrazitgrau/Palomino 154

1985 300TD, CA
040 Schwarz/Palomino 154/3rd row seat

1985 300TD, CA
473 Champagner/Palomino 154/Cargo cover