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Old 10-04-2012, 07:26 AM
HPIA4v2 HPIA4v2 is offline
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Originally Posted by bmw9224 View Post
i just replaced my oil sensor so its not the sensor and they filled up the oil all the way and about a month later the warning popped up saying engine oil at min level. where is the oil going? i ran threw a few quarts in a months. please let me no if you had the same problem and what is was that was making the oil disappear.
When I said 1quart/1k-mile doesn't mean nothing wrong, it's just a way BMWNA saying "I am not paying for repair cost of CCV or engine wear problems"

My suggestion is google "BMW CCV" porblems and follow alot of discussion on E46 board (the older 3-series, there are many-many 325, 330, 328 inline six M52, M54 engines more so than 5-seris in numbers sold). usually it's the CCV clogged (due to sludge) or torn (rubber rot), allowing backpressure to develop sucking oil fume to be suck into intake and got burn.

I've seen a youtube where someone put a plastic on oil filler opening in the engine and see it it got sucked in when engne is running, if yes then you have the problem, but google it first I hate to see saran wrap got sucked completely into your engine!

The other remote possibility is engine wear so check for compression on all cylinders.

good luck guys, oh yeah sludge problem is due to ext-oil-change interval and short trips, so avoid them if you can.
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