Hello everybody! It’s time again. The TÜV calls to the performance! I drove mostly the summer over without ABS/TRACKS. In case of error reading mostly speed RadSensor is implausible. I then checked all sensor rings, ok! I then also renewed the rear cable, no change! Have observed that if it is very cold ( minus degrees) the system for a short time, depending on temperature 5 -15 min, , , works. I thought, if possibly a cold soldering point is to blame? Was on the search for E rsatz or repair. I found a hint that my existing control unit would not be suitable for my car! Is there a list what you can see, which number my component must have. On my stand the following numbers on it: 9162675 6840 10.0946-0402.3 3X5669 Controller United + TRACKS 4 WD Is the part right or wrong or is the error somewhere else to look for? As always, grateful for all helpful hints