ABS Hill Decent and Traction control warning lights

[keyboard]

Hi Guys

I need to tap some of your experience with my Disco 2 TD5. The ABS Traction Control and Hill Decent warning ligts have come on. In the past this has been the ABS sensor but that has since been replaced on this wheel i question ( Front Right)./

Since that sensor has been replaced the waring lights would come on intermittently under hard braking, These lights would normall reset after reatrting the car, but yesterday They came on and syated on. I took it to my mechanic who informed that thae problem was on thebn same wheel ( Fron right) but that it was not the ABS sensor (Replaced about 3 months ago) but the bearing. There is no bearing noise, but he mentioned that the bearings can get a bit of ware and that this can cause miss reading of the ABS sensor. But he also said that you got replace just the bearing but the hole hub....which cost about £200 for the part plus labour...

He didn't do any chechcking of the hub or bearing or anything, just said that is the problem... The mechanic is a landrover specialist and as about 25 yrs experienc with them so I am taking him at his word

My question is has anybody else come across this problem... and that the complete hub had to be replaced

[listerdiesel]

The hub is a sealed unit, made by Timken Canada, and the bearing is not replaceable, you do have to change the whole assembly.

Given that there is an air gap between the sensor and the cogged wheel that it 'looks' at, there would need to be a lot of play in the bearing in my view before it lost contact with the teeth on that wheel.

I'd be inclined to remove the existing sensor, clean around the hole and rotate the shaft and check for anything metallic around the area, or of course the sensor may have come loose.

We get occasional alarms come up, but so far they have always gone away again. We changed a rear shaft and hub recently, thinking it was a bearing that was bringing the alarm up, but it made no difference, and I belive that a lot of these alarms are false triggering in the electronics.

We hold spare axles for the day when we do have a bearing failure.

The three lights are known in Land Rover circles as 'The Three Amigos'.

Peter

[Newsreader]

My question is has anybody else come across this problem... and that the complete hub had to be replaced
Yep I had exactly that, on the OSF. When the lights first came on there was no sign of a bearing problem, everything seemed to be working exactly as it should. I stupidly drove it for quite a while like that until the bearing completely failed. And yes the whole hub has to be replaced as a unit.