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2002 BMW 525i oil burn!

Tiny
MAGIC2583
  • MEMBER
  • 2002 BMW 525I
  • 6 CYL
  • 2WD
  • MANUAL
  • 90,000 MILES
Just bought this 525 I 2002 with lots of hidden problems. First it burns oil. Did the compression test. Cyl1 180, cyl2 175 cyl 3 160, cyl 4 165, vyl 5 170, cyl 6 125! I did engine flush with bavauto recommended lubro moly. It looks like it stopped blue smoke from puffin but is still consumes oil. I never replaced the oil separator and hoses around it. Mechanic told me that they were fine but I read that at this milage it has to be done, period. Now I did the ligh engine check and it said something about, post catalyst fuel trim bank1 1 too lean, and some misfire 1, and something about fuel low. I had also fuel injectors cleaned when I bought is and valve cover gasket replaced, and spark plugs replaced. Please tell what are my options?
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Friday, July 10th, 2009 AT 3:03 PM

2 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Replace the cyclone seperator and reset the adaptations and your oil consumption should get better.
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Saturday, July 11th, 2009 AT 11:55 AM
Tiny
MAGIC2583
  • MEMBER
  • 4 POSTS
Did crankcase vent. System job and it did not improve. Still burns oil.
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Monday, July 20th, 2009 AT 9:05 PM

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