My '88 300TE behaves a bit poorly when cold.

Doesn't want to accelerate, and then (like a switch) suddenly catches and increases speed relatively normally.

Behavior is fine when warm.

Clearly something in the cold running circuitry is malfunctioning, but wonder whether this symptom provides a specific clue.

TIA

__________________
Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

I would review what M.B.Doc had to say in the following thread. He discusses issues with a warm up regulator. Those became obsolete along the way and I'm not sure if they were still around when your MB rolled of the assembly line.

http://www.peachparts.com/shopforum/showthread.php?t=122013&highlight=cold

If your MB is not so equipped, I would consider:

a. thermostat - running too cold
b. ECT - engine coolant temp sensor. If defective, the ECT could be sending a "warm motor" signal early in the game, thereby keeping things too lean.

__________________
'91 300-SEL

Thanks. Will check out.

__________________
Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles