2002 BMW 525i engine light on

90,000 MILES • 6 CYL • 2WD • MANUAL
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MAGIC2583
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  • 4 POSTS
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, thank you
Jul 8, 2009 at 4:39 AM
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DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 POSTS
You might consider replacement of the cyclone separator/pressure regulator and a good look at the condition of the coils.
Jul 9, 2009 at 2:44 AM
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MAGIC2583
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is there anything else that i may consider like just bad engine, for example, that somebody broke before i bought this car??? or are you pretty confident that it may be just a bed crankcase components that are bad???
thank you
Jul 9, 2009 at 5:43 AM
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