Hello friends, I would like to discuss the following case with you and experience your experience: Vehicle: Mercedes C270 CDI, Tires: Good Year Eagle 225/45/ZR17 I went to the office with good air pressure – while on the way there seems to have been a bit of drilling, so after 8-9 hours there was no air in the front left tire at the end of the day. From experience I did not move the vehicle and called the ADAC, which I told on the phone about the existence of my spare tire . The troubleshooter was there quickly, but did not want to pull my spare wheel on it. Since the foreign body had penetrated exactly in the middle of the tread, he worked it with an emergency repair kit and stuffed it. For this he removed the foreign body, opened the hole and then introduced a “vulcanization strip” with a T-shaped tool. The problem was solved. Now he said that I should have it repaired on occasion in a tyre workshop and the right one. In the end I visited the recommended tyre dealer from the ADAC homepage in person. All dealers have finally said the same thing: after an emergency repair can no longer be further processed. This means in concrete terms, the ADAC would simply have pulled the spare tyre on it, instead of inserting the patching set, the tyre could have been repaired normally and permanently. In addition, the other front tyres should be changed, because the “belongs together”. My tyres were bought last summer and hardly driven, so almost new and unfortunately also expensive in size. From a damage of 20-30€ now 320€ for 2 new tyres have been made. As a result, I complained to the ADAC and demanded compensation, since it did not make the true repair of my tire possible any more h The situation is two days ago, but I’ll be happy to keep you informed.