Just been through all this (IS200 sport) Car had been stood for a while, calipers were sticking, garage reckoned on new calipers etc. Bu**er that, remove,strip, clean pistons etc re(rubber)grease pins and no longer sticking,BUT......vibrated like a wobbly thing under braking, shook the steering AND gear stick, but not particulaly prevelant at the pedal. I thought probs with ball joints etc but found no slack and discs seemed ok, no washout or warping that i could detect. Finally, everything off again and presto, offside disc, inside face is pitted. New discs and pads (EBAY, £55 deliverd!!!!!!! - planet car parts) and all is much happiness. woohoo!
