A8 ABS light

[danman]

Hi Guys, I have a 1999 A8 4.2. When I have been driving for about 10 to 20 minutes, (it varies), the ABS and ASR/ESP warning lights come on. If I stop the engine and restart they stay off until I have driven for another 10 to 20 minutes and then they come on again. Any ideas?

 

[Caesium]

sounds like a faulty hub speed sensor.

 

[GeorgieMcC]

http://www.audipages.com/Tech_Articles/susp_whls_brake_steer/abstroubleshooting.html

 

[hotdogg]

mine did the same it was a abs senser.a new one was 75 pound fitted.the lights never played up since.