Whining sound during acceleration?

victorg95 · 03-27-2019, 01:51 AM

2011 335xi n55, fbo. During acceleration and when braking at low speeds right before it changes gear, there's a slight whining sound. This sound goes away after accelerating for a bit and when I'm braking, it goes away before a downshift but after it comes back. I opened my hood while the car was running to see where it was coming from and it seems to be coming from somewhere underneath the BMS intake?

Anyone? No codes or anything. The whining is very high pitched. I checked my exhaust vacuum line by my taillight and its plugged in so it's not that.

juld0zer · 03-28-2019, 05:16 AM

Remove and inspect your oil filter. Could be deformed/crushed.

03-27-2019, 01:51 AM	#1
victorg95 First Lieutenant 70 Rep 231 Posts Drives: 2011 BMW E92 335xi ///M Sport Join Date: Apr 2015 Location: United States iTrader: (0)	Whining sound during acceleration? 2011 335xi n55, fbo. During acceleration and when braking at low speeds right before it changes gear, there's a slight whining sound. This sound goes away after accelerating for a bit and when I'm braking, it goes away before a downshift but after it comes back. I opened my hood while the car was running to see where it was coming from and it seems to be coming from somewhere underneath the BMS intake? Anyone? No codes or anything. The whining is very high pitched. I checked my exhaust vacuum line by my taillight and its plugged in so it's not that. __________________ 2020 BMW M340i Black Kidney Grilles \| M-Performance Spoiler \| M-Performance Side Extension \| CF Interior Trim \| MHD Tuned
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03-28-2019, 05:16 AM	#2
juld0zer Lieutenant Colonel 480 Rep 1,600 Posts Drives: Prev 135i 7DCT, Now 130i 6sp Join Date: Jul 2016 Location: 2153 iTrader: (0)	Remove and inspect your oil filter. Could be deformed/crushed.
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