If you would put that 1981 380SL in your profile, under the user control panel, it simplifies things for everyone. Specially us over 50's.I have a 1981 380SL that has a rough idle and poor acceleration for about 5 minutes just after starting when engine is cold. The car runs great after that, although infrequently it will cut out when coasting to a stop. Any ideas?
Have you checked the Timing on your 380SL?I have the same problem with my 81 380SL as well. I always let it warm up for around 5 minutes otherwise the car will be extremely hesitant and can even stall out and die.
Tried a million different things including the timing. Replaced the fuel pump which went bad, replaced the idle control unit, had 3 different mechanics try to adjust the idle countless times etc. I do have a new fuel regulator that I've been wanting to replace because I hear that the fuel regulator can be one of the main fixes. One of the ex Mercedes mechanics I know told me that I need to get the fuel pressure adjusted as well. If anyone has any information on how that can get done please let me know.Have you checked the Timing on your 380SL?
Mine would stumble until I got it adjusted properly.
Need a Timing Light ... Harbor Freight has a decent one, not the cheaper one but instead the $30 one.