E90 n52 2006 oil pan stress fractures need help

doomfull · 06-17-2022, 05:21 PM

I have an e90 2006 325i and just got done taking off the oil pan for gasket replacement. While looking at the pan, it has cracks inside and outside of the pan. I don’t think it’s leaking from them from what I can tell. Is this normal or should I be concerned ?

whyzee125 · 06-17-2022, 06:06 PM

Quote:

Originally Posted by doomfull

I have an e90 2006 325i and just got done taking off the oil pan for gasket replacement. While looking at the pan, it has cracks inside and outside of the pan. I don’t think it’s leaking from them from what I can tell. Is this normal or should I be concerned ?

Post a pic, maybe a manufacturing defect? Is it deformed or normal shaped?

mainbearing · 06-17-2022, 06:09 PM

Casting marks maybe?

doomfull · 06-17-2022, 06:26 PM

View post on imgur.com

The fractures are in the inside and out

mainbearing · 06-17-2022, 07:12 PM

Those look like casting marks. Mine has plenty too. If you wipe them dry and they are not leaking, then that is what they are.

eljay · 06-17-2022, 09:04 PM

These are likely from the type of cleaner you have used to clean the oil. Aluminum is pretty sensitive to harsh solvents and can etch as a result.
That said, you won't be leaking oil from those marks.

06-17-2022, 05:21 PM	#1
doomfull New Member 2 Rep 27 Posts Drives: 2006 325i Join Date: Feb 2022 Location: california iTrader: (0)	E90 n52 2006 oil pan stress fractures need help I have an e90 2006 325i and just got done taking off the oil pan for gasket replacement. While looking at the pan, it has cracks inside and outside of the pan. I don’t think it’s leaking from them from what I can tell. Is this normal or should I be concerned ?
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06-17-2022, 06:09 PM	#3
mainbearing Lieutenant Colonel 1085 Rep 1,682 Posts Drives: BMW 328i Join Date: Apr 2019 Location: LA iTrader: (0)	Casting marks maybe?
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06-17-2022, 06:26 PM	#4
doomfull New Member 2 Rep 27 Posts Drives: 2006 325i Join Date: Feb 2022 Location: california iTrader: (0)	View post on imgur.com The fractures are in the inside and out
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06-17-2022, 07:12 PM	#5
mainbearing Lieutenant Colonel 1085 Rep 1,682 Posts Drives: BMW 328i Join Date: Apr 2019 Location: LA iTrader: (0)	Those look like casting marks. Mine has plenty too. If you wipe them dry and they are not leaking, then that is what they are.
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06-17-2022, 09:04 PM	#6
eljay Colonel 1453 Rep 2,140 Posts Drives: ///M + E91 Join Date: Jun 2010 Location: NS iTrader: (1)	These are likely from the type of cleaner you have used to clean the oil. Aluminum is pretty sensitive to harsh solvents and can etch as a result. That said, you won't be leaking oil from those marks.
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