Black Smoke?

Jörgen Karlsson jorgen.m.karlsson at
Thu Aug 9 04:33:51 EDT 2001

I have found that many of the 1.8t cars do this, I don't know what causes
it. I have only seen one Audi that does it but several Beetles and Passats.

Is it only a short puff of smoke when he step on it or does it run rich all
the time when under boost?


> A friend of mine is driving a 1997 1.8T A4.  He has about 73K on it and
> has had some trouble with black smoke coming out of the exhaust when the
> turbo kicks in.  Any ideas as to what the cause is or what to do about it?

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