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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 12-13-2012, 12:19 PM
Kerry Patterson Kerry Patterson is offline
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Location: dallas
 
Join Date: Dec 2006
Posts: 23
Mein Auto: 530i
How do I diagnose the Cyclone oil separator?

2000 540i/6 - 98K miles

I have replaced the CCV/Oil Separator/tube in manifold and manifold gaskets and back plate. Car still puffs massive blue smoke at start-up and uses an alarming amount of oil. I dont think it is the rings as car has not overheated. No vacuum leaks at all.

I am looking at a large expense and just need to know if there is really a way to confirm this cyclone separator is broken.

Anyone?


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  #2  
Old 12-13-2012, 01:02 PM
Reuvers Reuvers is offline
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Location: The Netherlands
 
Join Date: Apr 2011
Posts: 139
Mein Auto: BMW e39 540i '97
i'm currently in the same place with my 97' 540i.

Although mine isn't using that much oil, there is deff quite some smoke and it stinks like oil. Did the ccv hoping that cured it but no luck.
Previous owner did the head cover gaskets less than 10000 miles ago, so assumed they were good. Today I found out it seems he didnt replace the rubber grommets on the bolts allowing oil to seep in by the spark plugs. Plugs were covered in oil. I ordered new set of rubbers and hoping to get them on soon. I sure hope that will help me and possibly yourself.
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  #3  
Old 12-13-2012, 01:04 PM
Reuvers Reuvers is offline
Officially Welcomed to the 'Fest
Location: The Netherlands
 
Join Date: Apr 2011
Posts: 139
Mein Auto: BMW e39 540i '97
btw i could litterally see oil coming from the grommets on the outside of the head covers
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  #4  
Old 12-13-2012, 04:29 PM
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bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 20,539
Mein Auto: 02 BMW 525i M54 auto 130K
This might help:
- How to test the crankcase ventilation (aka CCV, CVV, PCV, CPV, & OSV) pressure regulating valve system (1) & a video of oil separator quacking chubacca noise (1) & vacuum leaks due to holes in one or more of the five CCV hoses (1) (2) (3) or frozen or torn diaphragms (1) & a clogged CCV (1) causing pressure in the crankcase and smoke in the exhaust necessitating CCV system overhaul (BavAuto M54, M54,M54,M54,M54, & M54 observations) (M52,M52) (M52TU) (M62,M62) ('99 528i) ('98 528i); usually replaced with the insulated CCV upgrade (1) & sorely needed clarification on how the M54 CCV vacuum port works on the M52 CCV valve connection to the fuel pressure regulator connection (1) & how to do a CCV delete (1)
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Each repair should invariably add to our knowledge base by the process of inexorable incrementalism.
Your job, in return, is to read the suggested threads, where the best people will always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
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