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BMWpman 01-25-2012 07:48 PM

Strange sound during cold driving
Hey Folks, I have an 07 M6 convertible 6-spd manual. When I start driving the car before the engine gets warm I get an odd alienated sound in the cabin. It's like an engine drone or whine that increases as the engine revs. When the engine gets up to temp, its gone. Any thoughts on what this could be would be greatly appreciated.

Slyncka 01-25-2012 08:38 PM

Did this start after the weather got colder? Maybe check if it still makes the sound with the heat on/off or with different settings there.

Could be the heater core or something else with the heating?

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