Strange Misty Leak

RogerN · 12-04-2019, 01:08 PM

I am getting a oil/coolant mist on the front of the engine and belt assembly, it seems to also accumulate on the air filter pipe by the alternator and the power steering fluid reservoir. I have changed the oil cooler gaskets and it doesn't appear to be leaking from there, any ideas?

blown07 · 12-04-2019, 05:30 PM

The only place I seem to get oil like this is the power steering cap. There is a small vent hole there as you probably know. Maybe check the level if you haven't lately.

RogerN · 12-05-2019, 09:17 AM

Thanks, I will check!

RogerN · 12-10-2019, 06:59 PM

FYI, I found the problem, hairline crack in the valve cover, I can only see it at night under a flashlight. Oil vapor is blowing on the power steering reservoir and to the front of the engine.

12-04-2019, 01:08 PM	#1
RogerN New Member 3 Rep 10 Posts Drives: 08' 335I E92 Join Date: Nov 2019 Location: VIRGINIA iTrader: (0)	Strange Misty Leak I am getting a oil/coolant mist on the front of the engine and belt assembly, it seems to also accumulate on the air filter pipe by the alternator and the power steering fluid reservoir. I have changed the oil cooler gaskets and it doesn't appear to be leaking from there, any ideas?
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12-04-2019, 05:30 PM	#2
blown07 Lieutenant 202 Rep 449 Posts Drives: 335i Join Date: Jul 2013 Location: Tijuana iTrader: (0)	The only place I seem to get oil like this is the power steering cap. There is a small vent hole there as you probably know. Maybe check the level if you haven't lately. __________________ 335i FBO,Meth,JB4,Sutphin flash,LSD,GCLites 11.25@127.4 on NT05R 335xi FBO,Meth,JB4,Sutphin flash,VTT stage1 11.38 1/4 - 7.30 1/8th - 3.35 0 to 60 @ 0C
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12-05-2019, 09:17 AM	#3
RogerN New Member 3 Rep 10 Posts Drives: 08' 335I E92 Join Date: Nov 2019 Location: VIRGINIA iTrader: (0)	Thanks, I will check!
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12-10-2019, 06:59 PM	#4
RogerN New Member 3 Rep 10 Posts Drives: 08' 335I E92 Join Date: Nov 2019 Location: VIRGINIA iTrader: (0)	FYI, I found the problem, hairline crack in the valve cover, I can only see it at night under a flashlight. Oil vapor is blowing on the power steering reservoir and to the front of the engine.
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