Identify leak?

delta-9-ginseng · 01-09-2021, 05:41 PM

Hi all,

Can you please help me identify a potential source of this oil leak. Luckily, no oil leak on the ground. I have noticed the leak when I drive the car and then afterward there is a strong oil burning smell. I have attached some pics and input would be greatly appreciated.

Also just to provide some orientation context this is on the left side of the engine bank.

Thank you!

Lester · 01-09-2021, 06:21 PM

What model and year is it? The N54/55 typically need the oil filter housing and valve cover gaskets replaced at 50k miles, sometimes sooner.

delta-9-ginseng · 01-09-2021, 06:35 PM

Quote:

Originally Posted by Lester

What model and year is it? The N54/55 typically need the oil filter housing and valve cover gaskets replaced at 50k miles, sometimes sooner.

Sorry, I should have mentioned the car is a 2008 N54 with ~68K.

Lester · 01-09-2021, 06:54 PM

Ok, then if the OFHG, valve cover gasket and oil pan gaskets haven't been replaced yet, then they are well past the time.

fast1eddy · 01-10-2021, 12:26 AM

Valve cover gasket. It's recommended to replace the valve cover at the same time. They have a tendency to crack as they're plastic.

01-09-2021, 05:41 PM	#1
delta-9-ginseng OG Tray Deee 82 Rep 261 Posts Drives: BMW 135i & F36 435i Join Date: Jul 2011 Location: LA and SF iTrader: (0)	Identify leak? Hi all, Can you please help me identify a potential source of this oil leak. Luckily, no oil leak on the ground. I have noticed the leak when I drive the car and then afterward there is a strong oil burning smell. I have attached some pics and input would be greatly appreciated. Also just to provide some orientation context this is on the left side of the engine bank. Thank you! Attached Images
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01-09-2021, 06:21 PM	#2
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	What model and year is it? The N54/55 typically need the oil filter housing and valve cover gaskets replaced at 50k miles, sometimes sooner.
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01-09-2021, 06:54 PM	#4
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Ok, then if the OFHG, valve cover gasket and oil pan gaskets haven't been replaced yet, then they are well past the time.
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01-10-2021, 12:26 AM	#5
fast1eddy First Lieutenant 270 Rep 367 Posts Drives: 2008 135i Lemans Blue Join Date: Jul 2013 Location: Edmonton iTrader: (1) Garage List 2008 135i [0.00] [0.00]	Valve cover gasket. It's recommended to replace the valve cover at the same time. They have a tendency to crack as they're plastic.
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