James Hodgson

Folks, I just replaced the piston seals on the front brakes of my IS. Had a sticking piston... If someone tells me how to put photos in the post I'll write it up and bung it in the Workshop section. Can't work it out at the moment. Feeling a bit blond!

I've had this problem. I got fed up and stripped the brakes. Clean the back of the pistons and where the caliper touches the pad. Clean the pads and anti squeel shims. Remove the bit that the pads sit in (two big bolts round the back) and clean it. Especially where the pad clips into it. Use a file (carefully) if you need to. I attacked it with a wire brush in a piller drill as well. Take the disk off and clean where it touches the hub and the wheel too. Clean everything. When it's all completely spotless put it back together with a little copper grease. Just be very careful of the rubber seals on the pistons and slides. It's fine now. Except.... I almost set fire to them 'cos I've got a stuck piston now. I've freed it off twice. Has anybody changed the piston seals before? Is it hard?