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      12-31-2019, 06:22 PM   #9
jkoral
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Drives: 2017 M2 LBB 6MT
Join Date: Oct 2007
Location: MA

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Quote:
Originally Posted by MZWIE View Post
I have spent about an hour searching on this subject. I found one instance where the guy was running 18psi. This I understand.

I respect what you say, but the statistics don't reflect this.
Are you looking only at M2s, or all N55s? Anecdotally, it is common with stock N55. First (of many) google results:

Another Stock N55 Charge Pipe Failure
https://f30.bimmerpost.com/forums/sh....php?t=1407066

"The service advisor said that this was the 3rd stock N55 to come in this week with a cracked charge pipe. The other two vehicles had cracked charge pipes around 35,000 miles and 50,000 miles."
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