Hello, my car is just in the workshop. It did not pass the TÜV and a new catalyst had to be installed. In addition, a few other things have to be replaced. Can I ask for the catalyst, among other things, the original invoice regarding warranty and proof, which and that a new catalyst was installed? As I will probably sell the car soon, that would be advantageous if I could prove it. Or can you only get the invoice of the workshop incl. the work and on their work including the newly installed parts there is the guarantee? For the replacement of the catalyst incl. the analysis in advance, 680€ are calculated. Are the costs significantly too high or ok? Greeting Homer