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      02-25-2013, 10:15 AM   #2
Bill B.
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Drives: '12 135i, '13 X135i '15 S1000R
Join Date: Sep 2011
Location: Cary, NC

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Quote:
Originally Posted by xyz100 View Post
I just realized that N20 does not have steel sleeves at all in the cylinders. It has steel coating instead - "electric arc spraying technology". Hopefully it does not turn into Chevy-like failure over time. Makes me wonder why they do not offer extended warranty over 100K miles.
Only time will tell. Mercedes is in the same boat with the coated cylinders.