Quote:
Originally Posted by RobRed
Hello Bimmer Brain Trust;
My 2019 F90 makes an unusual sound since new. There is a loud buzz and vibration that happens. It sounds electro mechanical like a pump pressurizing. Hard to isolate location but seems front (engine) oriented. This happens occasionally when I first get in the car, only when it's cold and prior to ignition on, but during automated power up.
What's happening?
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I've heard this also - probably various systems initializing loudly. Heard this with the X6 too.