I do and it's my own fault, when I changed my brake pads i fuked up. U know the L-shaped piece of metal which slides into the caliper to stop the pads falling out, well it has a hole either side for a little loop of wire to be inserted which stops it sliding out. when I took my old pads out I noticed one of these was missing. I put the new pads on and only inserted the wire in the left hand hole intending on going to renault to get one the next day. Well I forgot like a total moron!! Anyway as looks as the bar has slid slightly to the left the pad nearest the piston has dropped out. This morning I had my stereo up full bore and I reckon Ive driven bout 10 mile with the bare piston rubbing the brake disc and coz of my tunes i Have not heard the piston grinding. First thing I knew was the loud bang of those bolts snapping. Anyway im just hoping the garage manage to drill them out and re-thread or im gonna need a whole rear beam, which is gona be expensive.