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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

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Old Mar 14, 2019 | 04:07 PM
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greggs
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1983 380SE
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Hi guys,

So I bought a 1983 W126 380SE automatic this past weekend to use as a daily and for charity events. I'm new to Merc as I've always had BMW and Audi, so it's an exciting learning curve

Does anyone know what the part circled in the picture is? It was disconnected when I took ownership of the car, but surely it has a function? I can't find any engine diagrams anywhere that explains what it might be... anyone know? The car idles quite rough and was thinking this might have something to do with it.

Thanks!


It's behind the distributor and just under the front of the air filter housing
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Old Jun 12, 2019 | 09:03 PM
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Gregs500sel
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1985 500SEL
It's an idle control valve.
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Old Jun 23, 2019 | 10:21 AM
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Gregs500sel
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1985 500SEL
And it's installed wrong. Electrical connector should point forward.
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Old Jan 28, 2021 | 07:39 PM
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Mr. A Kaufman
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From: Melbourne, Australia
1984 280SE W126, 1982 280E W123
Does anyone know if the 6cyl M110 W126 (Australian delivery) has a corresponding part or is it just the "Slide Valve"?
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