Hi Volvo 940 GL 2.0 1991 Estate UK, car has started to make a horrible noise under braking. Intermittent, not always. Comes from Passenger side front, took the wheel off last night, outside of disc looks good, pad this side has almost the thickness of a cd case on it. Shone the touch down the back of the disc and there are two grooves deep enough to be class as the mid Atlantic ridge! Pad on the back of the disc is riding flat against the disc, no material I could see!!!
Two things
1) Has anyone go any idea of what caused this? I bought the car last October, not service carried out yet. 2) the GSF parts book say I need to know if the braking system is Bendix or Girling, but does not advise me how to tell the difference.Disc Diameter is 285mm.
Hope someone can give me some help here.
Simon