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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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  #1  
Old 01-24-2016, 03:23 PM
Hey rampage Hey rampage is offline
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Location: Jacksonville
 
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Mein Auto: 2008 535xi
535xi oil coming from bov

Im running the stock diverter valves venting atmospheric, i noticed it looks like some oil has been spraying out of them. Any ideas what it might be? Car still pulls strong, and sounds fine. Hoping i just need a catch can...

Im running jb4 map 7 30% e85, dci, secondary cats and muffler delete
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  #2  
Old 01-24-2016, 11:38 PM
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booyaazaa booyaazaa is offline
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Quote:
Originally Posted by Hey rampage View Post
Im running the stock diverter valves venting atmospheric, i noticed it looks like some oil has been spraying out of them. Any ideas what it might be? Car still pulls strong, and sounds fine. Hoping i just need a catch can...

Im running jb4 map 7 30% e85, dci, secondary cats and muffler delete
You will usually have a certain amount of blow-by that comes from the oil lubricating the turbos especially at higher boost levels. You also have oil being introduced into the intake tract via the pcv. Usually it just cycles back into the intake tract but since your venting to the atmosphere it's now getting all over your engine compartment. Just making sure you know there is zero performance benefit venting into the open. Sure you might get a little bit more psssssss noise but usually most cars only hear my exhaust anyways from behind.
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Old 01-25-2016, 08:25 AM
fdriller9 fdriller9 is offline
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It's completely normal for a thin film of oil to build up in your induction system from the PCV system

You can add a small filter to the BOV opening to catch the oil spray
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Last edited by fdriller9; 01-25-2016 at 08:27 AM.
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Old 01-25-2016, 04:51 PM
Hey rampage Hey rampage is offline
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Mein Auto: 2008 535xi
535xi oil coming from bov

Awesome, thanks for the help

Last edited by Hey rampage; 01-26-2016 at 11:58 AM.
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