How to troubleshoot noisy brakes in a BMW?

I just purchased a used BMW and noticed that the brakes make a loud screeching noise when I come to a stop. How can I fix this issue?

First, check the brake pads for any wear or damage. If they are worn out, replace them immediately. If they are not the issue, it could be a problem with the calipers or rotors. Have a mechanic check these components for any damage. Another possible cause could be low brake fluid, so make sure to check that as well.

In addition to checking the brake pads, calipers, rotors, and brake fluid, make sure to clean any debris or dirt that may have accumulated on the brake pads or rotors. Sometimes a simple cleaning can solve the noisy brake issue.