So I just got my new '94 325is from a family member and in the past have heard this somewhat high pitch wewewewewe. It sounds like the old cars with spedo cables going out. Now this only happens under harding braking. Not all the time though. While that noise is going on if you turn the fan to zero, the noise will go away right then. So today sitting at a light with the fan on number 1, it sounds like there's a leaf stuck in the blower motor. This damm ticking sound!!! WTF?? Whats your guys' experience with those motors going out? Any symptoms?
Sorry for the long note, I like to be very thorough.