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Light blue smoke

Tiny
MINDAUGAS NERAA
  • MEMBER
  • 2005 BMW 530D
  • 3.0L
  • 6 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 144,000 MILES
Cold engine fine after ten minutes start light blue smoke from exhaust smells a bit of burning diesel. Can be bad fuel injectors?
Monday, May 22nd, 2017 AT 3:32 PM

2 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
The cold engine is fine, then after ten minutes you get blue smoke?

The cold engine is fine after ten minutes?

Blue smoke is a sign of burning engine oil.
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Monday, May 22nd, 2017 AT 8:17 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,476 POSTS
Being a diesel and a turbo I would suspect it is the turbo seals that are the problem. As the engine warms up and the oil thins out the seals leak enough and the exhaust is getting warm enough to burn off the oil. Rebuild the turbo and the oil smoke should go away.
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Tuesday, May 23rd, 2017 AT 7:51 AM

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