AYC problem.

[dan32]

hey all, just got a queion for yous. i have a 5 and my ayc light is on. when i bought the car in feb the light was on and i was told the diff was worn out. then with the next diff fitted it was still on. then i got a pump fitted, and guess what? yep the light is still on! anyone got any ideas?

and just one more, if the diff is bled correctly should the light goout or does it need to be knocked out by computer????

any help would be great.