we had a faulty wheel bearing on the bmw only 6 months after changing the same one. we changed the whole arm, just incase it was something else causing it to fail, and as the bushes were shot, we bought a second hand replacement. wheel bearing now sorted.
problem is, now the abs, traction control and (i) brake lights are on
with this secondhand arm, it already had an abs sensor attached to it, so we thought we may as well use that one, looks like a bad idea now the lights are on, so going to swap it for my old one, but that has fused itself to the arm, so soaking it overnight, if it doesnt come off i may just buy a new one.
now the one that came off the car had a grey connector, and this secondhand one has blue, both bmw parts, and i didnt think anything of it.
however now looking at a replacement part, october 2001, seems to be a crossover point for different sensors, does the colour of the plug tell you which sensor you need, and could that be the reason the light is on?