Just noticed when you start the car up after a few seconds you can hear a mechnical whirr which sounds like the vents opening on the dash. Does anyone know if these shut when you turn the engine off then open again after a few seconds of starting driving again?
Sounds like when you change the direction of air on the climate control ie from in your face to low on the floor.
Would make sense ie not letting any mucky air into the car and say when reversing out of a garage not letting any fumes in the car.
I'm sure my 8L S3 made this noise too...