Hi! I have driven my M340i for two months and the braking noise issue has been there with my new car for the whole time. I recently recorded the noise and you can see if you are having the same issue as mine. I haven't driven it to the dealership for inspection. I heard from some of my friends who also have BMW and they say they have the same issue.
https://drive.google.com/file/d/1WfY...ew?usp=sharing