BMW G20 LCI Strange noise during fan start

Increase volume to hear the noise. Engine is off, air condition is off. iDrive 8

[@CorbinWilliams]

This is a normal sound, all my BMW’s have made this sound when starting the HVAC system depending if it’s drawing air from the outside or recirculating.

[@aviator_pl]

Flaps in HVAC system are moving, this is the sound of flaps’ position motor

[@TV1Peter]

My G20 pre lci has the same thing. This is normal.