BMW 3-Series (E90 E92) Forum - View Single Post

apexit4 · 07-13-2018, 01:18 PM

Does the frequency of the knock change relative to your RPM?

I'm far from an expert, but my first thought was rod knock when I heard the sound. If it the frequency changes with higher RPM, it could further point to possible bearing issues.

07-13-2018, 01:18 PM	#36
apexit4 Major 1231 Rep 1,100 Posts Drives: 335D M-Sport, X5D Join Date: Apr 2018 Location: Maryland iTrader: (0)	Does the frequency of the knock change relative to your RPM? I'm far from an expert, but my first thought was rod knock when I heard the sound. If it the frequency changes with higher RPM, it could further point to possible bearing issues.
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