View Full Version : How to check tone rings???

06-26-2008, 05:25 AM
Hey guys,

Well recently I have had my ABS kicking in a slow stops and its very irratating. By searching on here I read that one of the tone rings might be cracked. Now how do I go about check the tone rings? And where are they located? Also how hard is it to replace?

Thanks in advance.

06-26-2008, 08:59 AM
They are right behind the rotors inside of the hub. You can look at them by carefully removing the ABS speed sensors and shining a light in there. While you have the sensor out, you can clean it and possibly correct the problem.

VAG COM may be able to tell you which sensor/ring is the problem. Read ABS codes or pull up the measuring blocks for the wheel speed sensor while driving. << best done with assistance.

06-26-2008, 09:01 AM
Sensor wiring is delicate. Don't pull by the wire harness or boot. Grab the sensor metal body and pull and twist slightly back and forth to remove.

06-26-2008, 09:14 AM
Would you recommend brake clear or electronics cleaner?

06-26-2008, 01:12 PM
^^ or some compressed air to blow it out.