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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E60 / E61 (2004 - 2010)

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 06-16-2015, 08:55 AM
elimitchellbmw elimitchellbmw is offline
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Location: Tennessee
 
Join Date: Jun 2015
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Mein Auto: e60 545i sport
Oil in coolant, no coolant in oil.

I've looked everywhere for some ideas. No luck.. So here we are! I checked my coolant yesterday because the light came on, it does about once a week, lost a gasket for the pipe that connects to the bottom of the coolant expansion tank. It drips out of there. Last week when I topped it off I saw no problems, yesterday when I opened it, it was this milky mayonnaise looking substance all in the tank and on the lid. I drained the radiator and flushed it and filled it with fresh distilled water.. Checked it today at work and it looks like chocolate milk. I replaced my alternator three days ago and two days ago noticed jerky acceleration/ transmission between 1000-2000 RPMs. Nowhere else. No smoke no other symptoms, brand new battery and voltage regulator relay in the trunk. Brand new water pump and belts, coolant transfer pipe job done 3000 miles ago. What's going on? Cracked head? Leaking somewhere? 2004 545i n62 v8, auto 123k miles.
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  #2  
Old 06-16-2015, 08:58 AM
fdriller9 fdriller9 is offline
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Check oil filter housing gasket.
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  #3  
Old 06-16-2015, 09:07 AM
elimitchellbmw elimitchellbmw is offline
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Location: Tennessee
 
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Mein Auto: e60 545i sport
I would need to drain the oil to check that right?
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  #4  
Old 06-16-2015, 09:49 AM
pcy pcy is offline
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No, you don't need to drain oil to check/replace oil filter housing. You will loose just a littlebit of oil when remove the oil filter housing.
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  #5  
Old 06-16-2015, 09:52 AM
fdriller9 fdriller9 is offline
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You also loose coolant if you do not clamp the hoses.
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  #6  
Old 06-16-2015, 10:34 AM
elimitchellbmw elimitchellbmw is offline
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Location: Tennessee
 
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Mein Auto: e60 545i sport
All hoses are clamped, it's leaking from that one spot and I have no idea where to get a new gasket for that one hose specifically. I will jack the car up tonight after work and see if I can spot any problems... But what should I even be looking for when I remove it?
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  #7  
Old 06-24-2015, 09:00 AM
elimitchellbmw elimitchellbmw is offline
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Bump
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  #8  
Old 06-24-2015, 09:01 AM
elimitchellbmw elimitchellbmw is offline
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The radiator is pumping out clean antifreeze while the coolant in the tank is still chocolate milk looking? Not losing oil or coolant, not running rough except a jerky acceleration between 1000-2000 RPMs and no smoke. Ideas?
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  #9  
Old 07-06-2015, 05:14 AM
elimitchellbmw elimitchellbmw is offline
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Location: Tennessee
 
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Mein Auto: e60 545i sport
Checked the oil filter, there is oil leaking from that location. What next?
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  #10  
Old 08-31-2015, 03:22 PM
leviq leviq is offline
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Mein Auto: 2008 535i JB3
Hey buddy, I agree with fdriller9, go ahead and replace your oil housing gaskets--should be two, at least one of which is for your oil cooler (the oil is cooled by coolant). At least some will crack, start to gunk up with dirt, etc. It sounds like you've got oil in the coolant system. Read up on this forum and you'll find oil leaks are common from oil filter housing (OFH) gaskets.

Here's a video to give you an idea of what might be going on:
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  #11  
Old 08-31-2015, 03:46 PM
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banglenot banglenot is offline
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We recently had a guy who got oil in his coolant -- but it was transmission oil.

Couldn't figure out why his engine oil was clean.

Check the transmission fluid loop. In his case, he got a leak between the tranny oil cooler and the radiator.
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  #12  
Old 09-09-2015, 05:00 PM
leviq leviq is offline
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Location: Charlotte
 
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Do any other BMW engines have issues with their gaskets I wonder, past or present?
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