I usually start hearing this sound after the car warms up…it comes in waves as you can hear. Seems to be coming from the right side of the car. If I bend down to look under the car the sound seems louder.
Changing the gear from park to drive seems to change the sound slightly….any idea what it can be? My car is a 535i xdrive with 38k miles on it.
The first video shows the location where it seems to be the loudest but the sound is much clearer in the second video. It sounds like someone is brushing their teeth….👀
https://youtube.com/shorts/J3bUe_HNmDY?feature=share