I have a problem with my car, its a 97 A4 1.8T. I had my ABS and Brake lights on, scanned the car and found out it was because ofa bad wheel speed sensor on the right rear. So I bought an aftermarket speed sensor off of ebay and replaced itand the lights went away. Now the only thing is that after driving maybe about half a mile or so the lights come back on and stay on, now if I shut the car off, pull the key out,and turn it back onthe lights are off, butifI drive it after about half a mile again they come backon and stay on, and it keeps doing it over and over... Anyone have any clues on what this is cause by? Could it be thatthe sensor I bought was no good? It's not OEM just randomaftermarket off of ebay. Any help would be greatly appreciated, Thanks!

 

anyone?

 

My rear right sensor broke as well when I took off my entire hub to press a new bearing in, and I've heard that you need to replace the entire ABS module including the sensor.