Hello I had to say to myself when I bought my car from the previous owner that he installed a sports suspension and would be lowered. Now check more closely I saw that the number on the spring does not match the test report. After googling for an expert report for the springs I also came across an expert report, however, only for a Z4 and I drive an e46. So I wonder if I might still have to make it easier with the tüv or have to install new springs Can someone help me?