Next time it happens, stop, get out, lift the hood, look and sniff.

If it smells like pancake syrup, it's coolant.

If it doesn't, it's probably oil like Hirnbeiss said.

Anyway, you should be able to see where the smoke is coming from. That's the first step.

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A.S.E Tech A1,A6,A7,A8 & MVAC 609 + EPA 608

Unless stated otherwise, any question I ask is about my greymarket 1985 380SEL.