Mercedes SL Class Mercedes SL500 and Mercedes SL600 Roadsters.

82 380SL constant idle oscillation 750-1250 RPMs

Old Sep 23, 2008 | 11:00 AM
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Default 82 380SL constant idle oscillation 750-1250 RPMs

Greetings !

A 1982 380SL has had the following done to attempt to stop the incessant idle fluctuating:

1-new idle control module
2-new ignition control module
3-new fuel filter
4-Techron injector cleaner used
5-coolant thermal switch replaced

I am now considering replacing the fuel accumulator and/or the fuel damper. How, exactly, do these things work ? The manual only shows their outline, i.e. no xray view.

How likely is this the problem and what else/other is suggested, please ?

Thank you,

Courtney
 
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