Cuts out when idling - 380SEL W126 - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 06-01-2010, 08:03 AM Thread Starter
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Date registered: Jul 2008
Vehicle: 1983 W126 380SEL
Location: Peterborough, UK
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Cuts out when idling - 380SEL W126

Been having a problem over the last year or so which seems to be getting worse. It happens mainly when it has been wet. The car generally starts okay but after a little driving it will cut out when the revs idle and then wont start again for a couple of minutes. Once it does start it runs fine when revved, but then if left to idle again it will cut out. The car has just had a service but because it doesn't do it every time, the garage can't find what it is.

Has anyone else had this? Any ideas would be great.
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post #2 of 3 (permalink) Old 06-01-2010, 09:51 AM
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Date registered: Jun 2010
Vehicle: 1982 Mercedes 380 SL
Location: CA
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I've had the same prob. I wonder if its your idle control valve that my need to get replaced. I own a '82 380 SL
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post #3 of 3 (permalink) Old 06-01-2010, 11:10 AM
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Date registered: Dec 2008
Vehicle: w204 (C350ELE)
Location: Miami, Fl and Mar del Plata, Argentina
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It seems the hot engine idle speed/action has to be regulated. Humid air intake is not helping the situation either with a too rich gas feed.

A car would show appreciation for preventive maintenance by never leaving his owner stranded.

Defensive Driving is never having to say you're sorry: a true love story between man and machine.
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