I started the car up earlier and the brake pedal went all the way to the floor! i had already started moving and with the pedal flat on the floor the car was hardly stopping. I turned the engine off to check the fluid levels, and tried to have a look at the calipers (but it was dark!). The fluid levels were fine, so i got back in the car again and the pedal wouldnt move! I had to move the car back on the drive so i started it up and there was a bad grinding sound. The pressure on the pedal was fine again tho. I took it for a quick test drive and the grinding almost went away. But am v. worried now.
Any ideas what could be wrong?? And help much appreciated, cheers Wado.