BMW blue smoke

2003 BMW 330CI
55,000 MILES • 6 CYL • 2WD • AUTOMATIC
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GARY COOPER
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  • 1 POST
BMW 330, 55,000mi. What causes a blue cloud of smoke when I start it cold?
Feb 2, 2011 at 1:02 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
Valve seals/stems/guides-
Feb 2, 2011 at 1:25 AM
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DOCHAGERTY
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 9,603 POSTS
Or a bad cyclone separator.
Feb 2, 2011 at 11:46 PM