Problems to solve

@Thormaxx1234, to give a bit more context I should probably have given to begin with...
When we got the car two years ago, there was pretty severe brake judder so the front discs and pads were replaced under warranty. The reason I think there is something wrong with the ABS is that the pedal vibrates as it does when the ABS is working as it should under heavy braking and loss of grip, the problem is that the pedal vibrates under light pressure and low speed (almost stopped). One thing I haven't established is whether the traction control system works.
The entire electric parking brake system and rear brakes were replaced last year after the EPB had refused to release three times over 18 months, that was £2700 at the dealer, they replaced the brake fluid at the time but this ABS fault started before that. The dealer has suggested replacing the ABS control unit which would cost another £2000 but they aren't sure if that will fix the problem.
Now it looks like the 4wd system doesn't work, even with the diff lock button pressed (the light on the dash comes on to indicate it's active), a video I found suggests this failure could be due to stripped splines where in the transfer box, according to that video the repair was about $4000 in New Zealand and is apparently a fairly common problem.
Our usual mechanic checked the wheel speed sensors a few days ago and declared them working.
We paid £10500 for the car (with 75k miles on it), it would probably be an insurance write-off if it needed this much spending on repairs after an accident!
We like the car, it's spacious and comfortable and would probably go on for a while if we could fix all this, but I'm wondering if we should cut our losses and get rid.
I have called a couple of "4x4 specialists" but they said they only really deal with Land Rover.
Any ideas or advice will be appreciated,.

Thanks

Mark

Today I removed both front wheels and ABS speed sensors and had a look down the hole in each hub (I rotated each hub to check the whole ring)
Here's the LH

And here's the RH

I think I may have found the problem with the ABS.
If I'm correct that those rings go on the drive shaft I assume the hubs will need to come off so I may have to get my friendly local mechanic to do that for me, I would hope the cost will be similar to that of a CV boot change. Might ask him to change the sensors too while he's at it.
It will be interesting to see what effect it has on the cruise control and 4WD...

Mark

You found it! i wouldn't mess with the sensors. Those rings are what the sensors read. It will have everything to do with ABS operation as it wont be getting accurate readings on that wheel.

Now you should have two options for repair. Either way the cv axle will need to be removed from the hub.

First, and cheaper option, is just replace the ring. But its very important to completly sand off all that rust and apply a thin layer of grease or antisieze before attempting to install the new ring.

Second option of course is replace that whole axle, they come with new rings.

A suggestion would be to check the rear two tone rings just to make sure they are ok as well.

Good work. And keep us posted on how you make out.


Adam