Brake Disc Pads Problems of BMW X3

I own a 2019 BMW X3 that I leased in December 2018 and then purchased in Dec 2021 at the end of the lease. It has about 22k miles on it. A few weeks ago, a warning light came on, telling me that my rear brakes needed to be inspected. I took it in and the dealer told me that rear brake pads and rotors had to be replaced. They should not have to be replaced so soon especially since I am not a teenager, and my driving is 90% on freeways. I am in my sixties and my family and I have owned/leased more than 25 foreign and domestic cars and have never come across one that required a complete brake replacement with so few miles. When I contacted the service department at my dealer, they said this is a common problem with all BMW’s and especially X3s. I asked even if we assume that the pads need replacement, why the need to replace the rotors at the same time. They said the original rotors are so thin that they cannot be machined. They have seen many that had warped at low miles, some that had cracked and a few that had broken into pieces. They said that they and other area dealers have brought this serios concern to BMW of north America but they keep getting ignored. They said that I was lucky that my braked did not seize and that I did not get into a serious accident. Please investigate this serious safety issue before someone dies. Thank you.

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The braking system has stopped work and almost caused a crash. The brake guild and brake pads all check ok but vacuum has been lost to the booster. You can here the cam making noise when you start the vehicle and the noise has been since we purchased it and BMW states that's normal. I feel like the recall repair was not done correctly. Also there seem to be a drive train malfunction that BMW can not figure out. Please help.

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