Hello everyone, I need your opinion on an issue that has been annoying me for about 1.5 years but I could not find a solution. My vehicle is 2012 model, 1.6 diesel sportium. In 2019, it is time to change discs and pads. Domestic production lining and Bosch brand disc were installed. I have observed a considerable increase in braking distance. In the future, even if we rooted the brake, it became almost impossible to stop the vehicle. I decided to replace the pads again, and a high-pitched noise came from the brake until I replaced it. But it is such a noise that you are ashamed to brake, making the traffic moan. I went to the service, they said it was caused by the supplier industry linings and they changed the linings. Braking distance improved, but the sound did not improve, this time I went again, they said the disc, we changed the disc, the sound did not pass, they said the caliper, we said ok, it still did not improve. I complained about the service, they sent technical personnel from the general directorate. He said that the new pads made noise due to the removal of the coal inside the pads, supposedly he put on the second quality pad of Peugeot, the noise was gone, but the braking distance is very bad. I said put back the noisy pads, they put it on, and unfortunately I still use these pads just for good braking distance. But I could not find what the sound originated from. In this process, we took the vehicle to almost 7-8 more masters, they could not detect the problem. As far as I have noticed lately; I pay attention to the echo of the sound of the vehicle from the median while driving close to the central median, the echo sound as if there is friction of metal. I wonder if anyone had a similar problem or had any idea about it?