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S-Class (W126) 1979-1991: 300 SE, 300 SEL, 380 SE, 380 SEL, 420 SEL, 500 SEL, 560 SEL, 360 SEC, 500 SEC, 580 SEC, 300 SD TURBODIESEL, 300 SDL TURBO, 350 SD TURBO, 350 SDL TURBO

idle problems

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Old Feb 27, 2010 | 11:14 AM
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richpron
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1989 560 SEC
idle problems
I have an '89 560SEC-let me preface this by saying that I have been playing with the idle mixture -when I richen it -it starts fine- 1100rpm down to 750-but as the temp gauge goes up so does the idle so I lean it a bit just to make it bearable-but then the cold starts take a while -the idle control valve is good-unplug it and the idle races-had the ICU checked and thats good too-complete tune up-new injectors,coolant temp sensor(2pole)fuel pump relay-any help is greatley appreciated!
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Coolant leak!

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