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  #21  
Old 02-21-2019, 10:24 PM
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  #22  
Old 02-22-2019, 04:38 PM
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Quote:
Originally Posted by Scott ZHP View Post
Clean out the oil return channel in your dipstick, it gets clogged with sludge.
Agree! this return pipe and hose gets clogged with the same light brown oil and freezes. It is a common point of blockage with this problem.

CCV Oil Separator problems on BMW and Mercedes show up every winter at my local garage. Horrible (intentional?) engineering.
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  #23  
Old 02-22-2019, 06:09 PM
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Quote:
Originally Posted by flatlander View Post
Agree! this return pipe and hose gets clogged with the same light brown oil and freezes. It is a common point of blockage with this problem.

CCV Oil Separator problems on BMW and Mercedes show up every winter at my local garage. Horrible (intentional?) engineering.
Agreed...they knew this was an issue from long ago and should have provided a platform to fix it. My Volvos don't have this issue not does my son's 2010 Jetta. normal maintenance is one thing...oil change, timing belt, etc.... however...my 75,000 mile perfectly maintained e53 with the m54 engine....should never have detonated. It's not right that I'm out $4000 for an engine replacement for something I could never have known about. Should I have to drive my car on the highway every day? It's a car...it should get me to and from work without drama. And for what those things cost, it should have been more reliable. Don't get me wrong, I loved the car but ended up giving it to my 16 year old to drive as I don't completely trust it anymore as far as reliability. BMW should have stood by this, period!

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  #24  
Old 02-22-2019, 09:12 PM
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I had to got to the u-pull lot this afternoon, so I pulled a dipstick tube from a 3.0 E53. I noticed this one had the cold climate CCV hoses, so I was really hopeful the dipstick might be the cold version, but no. Oh well, at least I've got one I can try to modify. Seems to me that drilling out the inner tube is the way to go, but it must be more complicated than that.

My recently acquired e53 definitely has mayo showing under the oil cap. It had a failed thermostat too, so I assume that was contributing to the mayo buildup.

AM.
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  #25  
Old 02-23-2019, 09:45 AM
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Quote:
Originally Posted by Attacking Mid View Post
I had to got to the u-pull lot this afternoon, so I pulled a dipstick tube from a 3.0 E53. I noticed this one had the cold climate CCV hoses, so I was really hopeful the dipstick might be the cold version, but no. Oh well, at least I've got one I can try to modify. Seems to me that drilling out the inner tube is the way to go, but it must be more complicated than that.

My recently acquired e53 definitely has mayo showing under the oil cap. It had a failed thermostat too, so I assume that was contributing to the mayo buildup.

AM.
I have the cold weather M54 dipstick tube installed; there is no inner baffle to clog, the short elbow drains directly into the sump at full width where it mates with the downtube.

Another contributor to mayo crap is a failed trans thermostat. The engine will not throw a code, and it will take forever for the engine to reach operating temp.
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