Thread: Buzzing/whirring noise in dash after braking

I had this start immediately after the dealer put thicker plates on the top of the shuttle valves on the ABS block. Seems to come from the right area too. So used to it that I hardly ever hear it, after nearly 300k.

I've heard similar on occasion; though predominantly after a U turn from stationary

The auto ECU under the passenger seat occasionally buzzes on mine, normally only notice it when stopped and music off/down.
Safe to say, I don't hear it often

Is your air con or heater fan running at the time,Mine has end float and the fan moves to one side slightly and causes a noise.left hand corners i think

I can only hear it when I pull up to a set of lights when the engine is quieter. It starts when I have almost come to a stop and disappears a few seconds after I have stopped. It happens every time and no this is with the AC and fan off. It almost sounds like a little servo motor buzzing..

Sounds exactly like mine.

I suspect it is the Wabco ABS unit . Have you checked the brake fluid? It could be the auto box but they generally dont make a sound, even when they dying!
Cheers Scott

Shouldn't be the ABS modulator as I only rebuilt it 6 months ago by replacing the shuttle valve seals, micro switches and the circuit board bypass mod. Plus I flushed all my brake lines with new fluid. The ABS unit has never worked better actually..