Hello! I have finally bought an Audi 100 S4 Avant 2.2 Bj.91. Some things are to be judged, which is why I have some questions now. I hope you can help me. 1. The odometer is no longer working. How can you fix it? 2. The UFO brake discs still have about 2 cm. Should these be exchanged? Where do you get the “cheap”? I don’t think a conversion to HP2 is worth it with me, since the UFO brakes should hold anyway 100 000 km and I for these at least 10 years 3. Does the rear brake caliper fit the S4 from the 100 2.8E? Which brake discs and pads do I need in the rear? 4. The reverse gear is difficult to insert. 5. The middle pan of the exhaust is removed. Now I have thought about buying a new exhaust system. Are the BN-pipes recommended? Can you drive the entry-free in Austria and fit them exactly? Thanks for your help! LG