My 05 gti got an ABS error light just before Xmas. Did a bit of research and it seemed the likely cause would be the ABS ring, so the car went to the garage and had a new rear bearing. All is good now until you hit 77mph (or cruise for a bit at 72) and the ABS light comes on.
I have since replaced the ABS / speed sensor to rule that out and it made no difference.
My thinking is that the ABS ring could be slightly warped, so at speed the sensor cannot track it and was thinking of popping off the brake caliper on the other side and noting the gap between the sensor and the ring and how even the gap is as the hub is turned, then comparing it with the problem side.
I'm just wondering what the consensus is on here, am I on the right lines?
Also, I tried unbolting the caliper carrier on the problem side, but could not get enough leverage to do it as I could not find a way to use my longer breaker bar (about 75cm) in that area as in every direction there is stuff in the way. What's the best solution? Remove the shock / spring for more room?