A couple of weeks ago I did a diesel purge on my new to me champagne TD and during the purge the idle kept getting more and more rough. The purge started turning dark almost immediately. Now it shakes pretty good at idle.

Today I did a diesel purge on my new to me black TD. As the purge went on the idle got more and more rough but on this car the purge color didn’t change much.

Both of these TDs need some sorting and cleaning the fuel system was on my list.

Any ideas? I’m thinking something dislodged and is clogging an injector. Checking and/or rebuilding the injectors was next on my list.

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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