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#1
10-03-2011, 10:57 AM
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Disappearing oil
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~2003 X5 4.4i~ 
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#2
10-03-2011, 05:29 PM
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Oil separator? If it isn't leaking, it must be burning it up. We had our X5 burn a quart every 600 miles and our problem was the oil separator not sending the oil back into the oil pan. It would cause you to hydrolock your engine when it gets cold, but I wouldn't worry about it much in TN; just get it done soon so you're not burning up so much oil.
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#5
10-04-2011, 11:35 PM
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Has anyone published an article on the diy cost and/or procedure that is any further info than this Oil Separator and Intake Manifold DIY - E46Fanatics
That has pics or more?
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~2003 X5 4.4i~
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#7
10-06-2011, 05:27 PM
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Not sure why that points the finger at the oil separator. There is no coolant in the oil separator. More likely to be a valley pan gasket.
Have you confirmed actual oil consumption?
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2007 X3 3.0si, 6 MT, Premium, White Retired: 2008 535i, 6 MT, M Sport, Premium, Space Grey 2003 X5 3.0 Steptronic, Premium, Titanium Silver 2002 325xi 5 MT, Steel Grey 2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue
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#8
10-06-2011, 05:39 PM
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these links should explain the oil separator
oil consumption is due to failure of the diaphragm at the rear of the manifold . diagnosing and replacement shown on the video for a 7 series but same engine . you can fix it and clean out the manifold whilst you are replacing the valley pan gasket . http://www.xoutpost.com/bmw-sav-foru...ve-issues.html How to change a dead OSV on a BMW E38 7 Series with an M62 V8 4.4L engine. - YouTube
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#10
10-08-2011, 11:47 PM
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Right now I have to do the oil separator. The truck was sold to family and I do what they are willing to buy. They have the separator, the back plate, and hoses so it will be a complete replacement of all the related stuff to the separator. The BMW guy here believes the backplate is to blame instead of the separator itself and says in our climate that is usually what goes. I REALLY wish someone had some pics of this done on a 4.4i, but I have been unable to find them for anything but a 3.0
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~2003 X5 4.4i~
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2001 X5 4.4i WHITE-Loaded like a baby's diaper SOLD
Linear Mode
