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      04-05-2021, 10:00 AM   #16377
ky0u
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Drives: e92 335i, f22 m235i, e30 325is
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Location: San Diego

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2015 BMW M235i  [0.00]
1988 BMW 325IS  [0.00]
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Quote:
Originally Posted by CTinline-six View Post
This problem is SO common. Don't even get me started on how much work and time the stupid blower motor caused me. I had this high pitched whine when turning sometimes. I took the brakes apart several times, thought there might be wheel bearing issues, etc, until one day I noticed it didn't happen when the HVAC fan was off. Guess what? It was the stupid bearings in that blower motor, going around a corner would put more stress on the bearings and cause the whine/squeal. Replaced the fan and no noise since. My friend's 2011 E91 I'm servicing this week had the exact same issue.
This has been my life the past few months. Only luckily I figured out it was the blower motor. But still, every so often on drives, it'll make a subtle sound and put me into mini freak out mode listening for engine rattling sounds until I remember, nope, just the blower again
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