hi remove wheel on one side of car force back old pads with large screw driver becarefull not to sratch disc then undo caliper from bottom (usually a bolt on inside of caliper)lift up remove old pad clean caliper and edge of disc a can of brake cleaner for this put new pads in a light coating of copper grease on back of pad ie the bit that meats piston re assemble make sure tighten any thing you take off do same on other side
aldo
June 2010