Join Date: Jan 2005
Location: The Netherlands
County: Zuid Holland
Indicates a problem with the ABS control unit, possibly one of the wheel speed sensors.....
Don't know what ESR is, but suspect it's VDC, which is stability control. That would explain the noises, VDC tries to brake individual wheels in case of stability problems. In your case, it engages due to a wrong input. As soon as the ABS computer "sees" there is an error in the system, it lights the error light and disengages the system. Hence the noise stops when the lights light up, and the car then drives normally. It does however also mean you only have conventional braking from that point on, no ABS braking.