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Message: <blockquote data-quote="bimmerdude" data-source="post: 340739" data-attributes="member: 13351">this sounds suspiciously like sensor failure which shows low oil level and maybe they overfilled the engine oil which blew the piston rings and caused the white smoke and engine failure?did they tell u what repairs they did? that would explain everything and determine (if they told u the truth that is) whether they are at fault. i read somewhere that a faulty sensor may show low/max oil when in actual fact its not and cause us to overfill or not fill oil. does anyone know for certain if our OBC system check can detect oil level sensor failure??? in other words, how do we know if our sensor is faulty? damn, this is confusing.</blockquote>