BMW blue smoke

2003 BMW 330CI
55,000 MILES • 6 CYL • 2WD • AUTOMATIC
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GARY COOPER
  • MEMBER
  • 1 POST
BMW 330, 55,000mi. What causes a blue cloud of smoke when I start it cold?
Feb 1, 2011 at 5:02 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Valve seals/stems/guides-
Feb 1, 2011 at 5:25 PM
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DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 POSTS
Or a bad cyclone separator.
Feb 2, 2011 at 3:46 PM
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