n54 Cracked Oil Pan or Bad Casting?

slamster · 07-13-2023, 12:47 PM

I'm replacing my turbos as well as my oil pan gasket. When I pulled out my oil pan, I noticed there were tons of cracks. It looks like they are grain boundaries of the aluminum when it was cooling from the casting.

There enough built up oil from the gasket that I couldn't tell if oil was getting through these grain boundaries.

Has anyone seen this on their oil pan?

iminhell1 · 07-19-2023, 01:20 PM

Totally normal.
Ignore it and move on.

07-13-2023, 12:47 PM	#1
slamster Enlisted Member 4 Rep 32 Posts Drives: 2009 135i Coupe Join Date: Mar 2017 Location: MN, USA iTrader: (0)	n54 Cracked Oil Pan or Bad Casting? I'm replacing my turbos as well as my oil pan gasket. When I pulled out my oil pan, I noticed there were tons of cracks. It looks like they are grain boundaries of the aluminum when it was cooling from the casting. There enough built up oil from the gasket that I couldn't tell if oil was getting through these grain boundaries. Has anyone seen this on their oil pan? Attached Images
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07-19-2023, 01:20 PM	#2
iminhell1 C2H5OH 3915 Rep 2,144 Posts Drives: 2010 SG 135i auto Join Date: May 2015 Location: Darwin, MN iTrader: (1)	Totally normal. Ignore it and move on.
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