Quote:
Originally Posted by CTinline-six
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.
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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