Brakes stay engaged and grind after releasing brake pedal - any ideas?
I can't see that something like this has been discussed before, but maybe I'm not using the right search terms. Here's what happened.
I was driving downhill on a slight slope and stopped at a light. When I lifted my foot from the brake pedal, and before pressing the gas, the car started rolling forward, but one of brakes, I think the front driver side, continued to hold and made a grinding sound, then it would release then grab again with the grinding sound, 2 or 3 times, for about 10-20 yards.
I turned right and drove around the block to test the brakes, and they seemed fine until I got back to the slightly sloped stretch. The same thing happened three times on the same slightly sloped part of the road.
I had the car towed to the shop, and I'd appreciate any ideas you guys might have that I can discuss with the mechanic on Monday.
2004 330xi, automatic, no mods
As for maintenance, new front pads and rotors, and a brake fluid flush were done in July 2012.
Thanks for your help.