When started cold, the engine stumbles when pressure is off the accelerator. As the engine warms this condition subsides but does not completely go away.
This problem started after the following work was done at the local MB dealership. 1. Valve adjustment, 2. new timing chain, rail & tensioner, 3. replacement of five vacuum elements, 4. new rack screw.
When the car was first picked up it actually stalled while driving at a low speed when foot was removed from the accelerator. I returned it to the dealer and they adjusted the rack screw. Before I take it back I would appreciate any suggestions from the knowledgeable members of this great list.

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Richard Seaman
1982 300D Turbo 198k
1987 420SEL Sold
1993 400SEL 123k
MBCA Desert Stars