PaulM

Hi there I had exactly the same problem recently. One of the two sliding bolts had seized completely on mine. How I fixed it ; Ordered a refurb kit which contained two new caliper sliding bolts, rubber boots and grease. Took the pad holder off with the suck bolt in it. Clamped the pad holder carefully in a large bench vise then put a socket head on the stuck bolt. Applied some release compound (posh WD40 basically) and allowed to soak in for a few minutes. Used a wrench bar to turn the stuck bolt in place to break the corrosion. Once it had done three turns it started to move easier. Then using a hammer and blunt chisel started to whack the underside of the bolt head. It took ten minutes but between turning and whacking the bolt had moved enough to be removed. The bolt isn't threaded in place, it just sits in a hollow recess in the pad holder. Mine had corroded in place as the rubber boot had split at some point. Once removed it was an easy job to clean up the recess head and drop the new bolt in. I did change both bolts as two are supplied in the refurb kit. Got my refurb kit from Brakes International, cost about £20 with postage. Reference code BCF1377. Hope that helps! Paul M