1993 BMW 740 Repair Question

Topics covered: Engine, Black smoke, Check engine light.
Mileage: 285,000 miles.

Asked on March 11, 2013

BMW 740 Engine Problem

Lots of black sooty fuel rick exhaust out tailpipe. No check engine light and engine seems to run fine.
What might be the problem?

Asked by (pending member)

Replied on March 11, 2013

Black smoke often means too much fuel or too little air. Any history you can relate here?

Answered by Dr. Hagerty (expert)
9,669 answers provided