I've just noticed a faint 'graunching' when I brake. Car has done 20,000 miles from new ( 06 model ) and i'm a careful driver who isn't heavy on the brakes! There looks to be plenty of meat left on the pads. It has alloy wheels and brakes are exposed ...i'm thinking ( hoping ) the noise is due to dirt getting in there, particularly as the roads I deriove can get messy! Anyone got any comments on similar experiences / expected pad life... etc. Braking efficiency seems fine