Hello,
I have the same problem. Purchased an approved used, 9 months old.
The vehicle has been in 3 times now and is with the dealer at present.
I’m looking for trends.
To date, Cleaned everything up and noise still present. Plenty of meat on pads and discs clean/minimal wear.
Second visit, changed pads, noise disappeared and exactly 7 days later returned.
Third visit, changed discs and pad, again noise disappeared and yet again returned after 7 days.
If “normal” why is the noise disappearing when new components are installed for the noise to return when/if components are “bedding” in.