Hey Ahmed
I don't know the answer, but you can do the following
first, send to Fiat Italy as an inquiry
2nd, you will need to inspect the caliper, it might be the problem
3rd and last, that might be a problem because the discs were worn below the recommended limit
after all you have driven with it for a while with the brake pads being worn
A question for you
did you change the Discs
المفضلات