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500SEL EURO High Idle and black smoke powder comes out of exuast, I just put a new Idle Control Unit and still no change.... The Idle Control Valve is also new.... Dose anyone else have this problem ? What else could it be ?

please help thanks
 

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1984 280SEL AMG
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Sounds like my 84 280SEL Euro, tho the black smoke only comes out during warm up.. Try retarding your timming, It seemed to help my Cede quite a bit. Tho somtimes it still idles at 1500... need to find the wire to the 02 sencor...
 

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Depends on the day!
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sounds as though you are running Very rich. When was the last time your CO was adjusted?

Jonathan
 
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