[poorshe911]

I have a 2000 528it that energizes the ABS system on a dry road. When I start the car, no 'ABS Brake' light is on the dash but when the brakes are applied the ABS system comes on pulsing what I think is a front brake. Then the 'ABS Brake' light comes on along with the Stability Control light and the ABS system stops working and I have good normal non-ABS brakes.
I'm guessing it's a wheel speed sensor that failed.
Can anyone help me with a test procedure to diagnose a bad speed sensor? Do you think it may be something else?

Thanks,
Michael

'99 323
'00 528
'83 911SC