Re: 85 380SE Idles too high & too low!

Does this engine have an electronic idle (speed) control module?
If so, it may have a crack in a solder joint on its circuit board. Your car is about the age for this to occur.

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My 85' 300SE having the same problem for long, doesn't come with control module, what could it be this case?
Thanx.
Mark

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You ought to check whatever controls the idle speed.
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