Moin in the round, the new car of my girlfriend loses brake fluid. I wanted to look at the wheel brake cylinder at the rear left, until I found that the key given by the previous owner is not suitable for the fitted rim lock. In the appendix you see a picture. The previous owner does not find the key. Seat sent me away. The manufacturer of the rims does not answer. I am a little asked how I can get the rim. However, I ask myself the following question: How do I get it drilled up without damaging the rim? Does anyone have good tips, so that the rim remains healed? Or maybe even by chance someone knows the manufacturer of the rim lock. Thank you very much in advance Kev