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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > High pitch whistle/screech at low speeds (video)

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      10-02-2019, 02:04 PM   #1
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Drives: 2007 335i E92
Join Date: Apr 2019
Location: California

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High pitch whistle/screech at low speeds (video)

My 2007 335i with 96k developed some high pitched whistle that I only hear with my windows down coasting at slow speeds, between 5-10mph. I did some searching around and found people mention a brake sensor and some mention valve cover. Based on this video and description does it sound like a valve cover to you or is this a brake sensor?

2007 335i FBO MHD 2+
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