Hello Together, have a Smart 451 Fortwo BJ. 2012 with 48 tkm. I noticed a short time ago that the brakes are a bit grinding and give a metallic sound while driving slowly. I noticed when changing tyres when I turned the wheel by hand. Since then I ask myself if this is so normal? The wheels can be rotated with the hand but a small resistance is noticeably more times less when turning. At the TÜV 6 months ago no abnormalities had occurred. Brake fluid was made recently at ATU. The old brake fluid was pressed through on all 4 wheels. With two videos… Is the disc and surface still in order? https://www.youtube.com/watch?v=cSS6gHnxkjshttps://www.youtube.com/watch?v=NBreHeFaUpc