300E rough Idle
My 1989 300E will idle rough when I stop for a light and resume, as if it was running on 4 cylinders. I will floor the Accelerator and it will run fine until idle again. I let it idle with A/C on for about 5 minutes and when I pulled off it began to smoke(couldn`t tell if blue or white). After smoke cleared it ran fine. Please help!
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