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      09-05-2010, 01:16 PM   #5
JCtx
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Drives: No BMW yet
Join Date: May 2008
Location: El Paso TX

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Quote:
Originally Posted by Mr. Boost View Post
Damn it... I didn't remove and drain that second smaller plug...
You're talking about the FRONT one (which is only about 1/2L), right? Hope so, or otherwise you overfilled your engine by 8.3L . If you forgot about the front one, which is the most likely scenario, you probably overfilled your engine a little (depending how and how long you drained the sump), but shouldn't cause any damage; dealers do it all the time. And yes, you'll have to drain it now to bring level to what it should be. And also yes, your new oil was contaminated by that old one, but if you change it again in 7,500 miles or less, you should be fine.

As far as draining, hope you drained the sump with the car level, or even better, with the front a bit lower. But if you raised the front, you left a lot more oil in the back of the large sump (drain plug is in front), and now you'd be overfilled more than you want. And finally, if you didn't do any of the above and are only 1/2L overfilled, are you sure NOTHING fell inside your engine while doing the oil change? The sound you described just doesn't sound right.

Please comment on the above and we go from there buddy.
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