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      08-31-2023, 02:41 PM   #38
Dvtchmxn
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Drives: '17 440ix, '16 228ix (Sold)
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Quote:
Originally Posted by JMcLellan View Post
It's very random. There are days of driving where I don't notice it but at times I'm just driving and not trying to hear it. Given that there are zero performance issues, and others with the same whine have mentioned no performance issues I'm going with that this is just what these transmissions do.

The root cause is mysterious though. Could it be that the sound dampening is compromised after being serviced? Is the new pan not as thick and allowing more sound? Someone mentioned that the service cleans out the gunk buildup on the internal components, so we are hearing more after service....but if this was true then wouldn't people hear this when the car is brand new as well?
hopefully one day we know the root cause. Other than that the whine in my car has gone down a little bit (or so I want to believe it has), only really noticeable on hard launches and low speed/rpms, usually in parking lots and such or coming out of a corner/turn. my consensus is that it’s normal. Don’t you think?
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