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

NinetyEight740 · 08-01-2019, 09:27 PM

I’d guess it’s your tensioner. Shine a light down there and see if the sound seems to go along with the movement. You can also try spraying some lube onto the pulley and see if it changes.

08-01-2019, 09:27 PM	#2
NinetyEight740 Major General 231 Rep 5,691 Posts Drives: 2 - 2013 535i msport Join Date: Nov 2008 Location: Orange County California iTrader: (2) Garage List 2010 E91 [0.00]	I’d guess it’s your tensioner. Shine a light down there and see if the sound seems to go along with the movement. You can also try spraying some lube onto the pulley and see if it changes.
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