N54 oil leak

Pfrank03 · 03-13-2019, 07:07 AM

Hey guys, got an issue I can’t figure out yet. My 09 335 is leaking about half a quart of oil but only on a cold start. You can start it and watch the oil pour out the bottom of the drivers side. Any opinions what it could be?

TheeGovernor · 03-15-2019, 07:44 AM

Quote:

Originally Posted by Pfrank03

Hey guys, got an issue I can’t figure out yet. My 09 335 is leaking about half a quart of oil but only on a cold start. You can start it and watch the oil pour out the bottom of the drivers side. Any opinions what it could be?

Did this start happening after your last oil change?

TheMidnightNarwhal · 03-15-2019, 07:46 AM

Didn't you already post this elsewhere?

waltater75 · 03-19-2019, 12:40 PM

I'd check the oil filter housing gasket as well as the valve cover gasket. If you see oil under the engine bay, it is likely the filter housing gasket and the tensioner pulley is splashing the oil around the engine bay.

03-13-2019, 07:07 AM	#1
Pfrank03 New Member 0 Rep 10 Posts Drives: 2009 335i Join Date: Dec 2018 Location: Georgia iTrader: (0)	N54 oil leak Hey guys, got an issue I can’t figure out yet. My 09 335 is leaking about half a quart of oil but only on a cold start. You can start it and watch the oil pour out the bottom of the drivers side. Any opinions what it could be?
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03-15-2019, 07:46 AM	#3
TheMidnightNarwhal Major General 2664 Rep 6,296 Posts Drives: 11' 335is DCT Join Date: Jun 2015 Location: Gatineau, Quebec iTrader: (0)	Didn't you already post this elsewhere?
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03-19-2019, 12:40 PM	#4
waltater75 Registered 0 Rep 2 Posts Drives: 2010 BMW 328i Join Date: Mar 2019 Location: Orlando, FL iTrader: (0)	I'd check the oil filter housing gasket as well as the valve cover gasket. If you see oil under the engine bay, it is likely the filter housing gasket and the tensioner pulley is splashing the oil around the engine bay.
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