Help! My mini has broken brake discs!

Hello together, can someone help me? I presented my Mini Cooper Cabrio Bj. 2004 to the TÜV on Friday. Unfortunately not very successful, because my mini shows “significant defects” on the brake discs left back. The crowning thing is that in front of me an age-old folding Daihatsu with small defects got the badge – and my beautiful mini doesn’t?! The mini has 53,000 km and even the gentlemen of the Tüv thought that this shouldn’t be that with a 3 year old mini the Bre The brake performance is also worse than on the other side. I will still get in touch with my mini dealer today and hope for BMW’s coolness! Is there anyone in this forum who knows this problem?? Would I be pleased if you have contributed to this! Many greetings ahampel