Bimmerfest - BMW Forums - View Single Post - signs of F30 N20/N26 timing chain issue, and OCI to the rescue?
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Old 04-23-2017, 09:39 AM
F10-N52 F10-N52 is offline
Location: Vaughan
Join Date: Apr 2017
Posts: 1,891
Mein Auto: 2011 528i RWD
It's the plastic timing chain guides and the whole design in general which is ****. The n55 likely has rod bearing issues because everyone uses garbage Mobil 1 0w40 which is not thick enough to protect your bearings during aggressive driving.

The m54 is a great engine but 6500rpm is not high revving lol. My favourite is the n52.
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