hi guys, the brake pedal on the galaxy started to hiss about 2 weeks ago. i looked through the forum and similar posts reveal the booster to be at fault. a few days ago the seal in the booster split completely, this gives you a lovely feeling of no brakes! you still have brakes just doesn't feel like it! also the booster provides the turbo with air to move the vanes, so no turbo and dodgy brakes...yipee. time to change the booster, what a job! you have to remove the airbox, engine covers, egr valve and pipes, brake reservoir, master cylinder, and then loosen the engine mount to enable the engine to be pulled forward to jiggle the booster out, not easy!! inside the car removing the booster input rod from the brake pedal requires infinite paitence and the hands of a small child! however two very hot days later and