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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 03-29-2013, 03:25 PM
EddieAdams EddieAdams is offline
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Oil Leak

As I try to resolve coolant leak, I'm faced with another leak... this time engine oil, and it is coming from under the part in this pic. It is on the front (passenger) side of the engine. What's this part and is it know to be a source of oil leak? Is there a gasket behind it I can replace? Is it difficult to replace? Any hints would be appreciated.

Thanks,
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  #2  
Old 03-29-2013, 03:30 PM
Khabar Khabar is offline
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Mein Auto: 745i 2005
that is a vacuum pump. O-ring is leaking behind pump. it is easy fix (remove/install )
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Old 03-29-2013, 04:57 PM
EddieAdams EddieAdams is offline
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Thanks... I'll look around for a new O-ring. Will the oil gush out if I remove it? In other words, do I need to drain some oil out of the engine first?
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Old 03-29-2013, 05:41 PM
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745iguy 745iguy is offline
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No. Search for the vacuum seal kit by bmp design. When the engine is off oil returns mostly to the sump/pan. In other words youre GTG without draining. Theres a diy for this search for it and youll get all the answers you need
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Old 03-29-2013, 05:51 PM
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Ltmax Ltmax is offline
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Make sure to read the DIY as there are a few tricks to doing this job that can make all the difference.
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Old 03-29-2013, 05:57 PM
EddieAdams EddieAdams is offline
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Searched for it on BMP Designs and just found out that this is a "Brake Booster" Vacuum Pump Seal Kit... Yet another weekend project on my car!
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