Coolant leaking through turbo bearing: any had turbo replaced?

cfm56d7b · 09-29-2019, 09:41 PM

Earlier B58 engines experienced this particular problem. BMW replaced the turbocharger.

Did anyone has this problem? What was the build date?

CrushJelly · 10-01-2019, 02:33 AM

This guy has.
https://www.babybmw.net/forum/viewto...29303#p1429303

Any idea whether it is possible to diagnose without pulling apart the exhaust?

cfm56d7b · 10-01-2019, 07:04 AM

I am very interested in exact symptoms that the dealer was able to observe. Cooling system compression test in this specific instance will be negative.

GA/\/\/\/\A_CT · 10-03-2019, 05:50 AM

Quote:

Originally Posted by cfm56d7b

I am very interested in exact symptoms that the dealer was able to observe.

Yes, interesting question. Assume this would not throw a code.

kern417 · 10-03-2019, 07:54 AM

maybe pull the downpipe and look for white residue?

hardparker · 10-07-2019, 08:21 AM

Quote:

Originally Posted by kern417

maybe pull the downpipe and look for white residue?

The coolant inlet and outlet ports are completely external to the CHRA. On the side of it. Nothing would leak into the downpipe. Only oil could do that with leaking seals.

09-29-2019, 09:41 PM	#1
cfm56d7b Lieutenant General 5886 Rep 10,256 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	Coolant leaking through turbo bearing: any had turbo replaced? Earlier B58 engines experienced this particular problem. BMW replaced the turbocharger. Did anyone has this problem? What was the build date?
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10-01-2019, 02:33 AM	#2
CrushJelly Private First Class 102 Rep 128 Posts Drives: M140i Join Date: Dec 2016 Location: Australia iTrader: (0)	This guy has. https://www.babybmw.net/forum/viewto...29303#p1429303 Any idea whether it is possible to diagnose without pulling apart the exhaust?
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10-01-2019, 07:04 AM	#3
cfm56d7b Lieutenant General 5886 Rep 10,256 Posts Drives: 2017 440i Gran Coupe & 2015 X5 Join Date: Nov 2012 Location: Orange County, CA iTrader: (2)	I am very interested in exact symptoms that the dealer was able to observe. Cooling system compression test in this specific instance will be negative.
	Appreciate 0 Quote