BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i) - View Single Post - Weird humming/"mooing" sound from exhaust side of engine? Got a video.

Merq · 12-19-2012, 01:43 PM

Did you ever figure out what was making the noise? My N55 started doing this as of late and it's driving me insane not knowing what's causing it.

12-19-2012, 01:43 PM	#2
Merq Private 7 Rep 91 Posts Drives: 2017 F80 M3 DCT Join Date: May 2011 Location: San Diego, CA iTrader: (3) Garage List 2009 E92 M3 [0.00]	Did you ever figure out what was making the noise? My N55 started doing this as of late and it's driving me insane not knowing what's causing it.
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