I think i have an ABS sensor issue on my 1999 S4 avant and they need replacing. I have looked up the part number for the rear ABS sensors (left side 8D0927807G) (right side 8D0927807F) and there seems to be no other chassis that uses these sensors unless any body else knows different? I was hoping there would be some thing else that uses them as the price for these sensors is stupid seeing as the front ABS sensors are used on lots of chassis and as such the price is about 1/6th of the price of the rears. As I under stand it the sensor has another wiring loom running through the same grommet for the auto head light leveling system and i think it could be this that is making these parts uber expensive. Does any body know of another sensor that can be used or am I tied to exchanging one arm and one leg at a main stealer parts counter?