If you need to ask, I would suggest it may be prudent to have it done professionally. I am not familiar with the vehicle, as I live in Australia,but basically you need to retract(push in) the pistons of the caliper to allow room for new pads, one side at a time, when one side is done clamp the flexible line to prevent fluid pressure from popping the pistons out when the opposing side piston(s) are pushed back..then unbolt the caliper/cradle to enable fitment of new pads,reassemble, pump pedal until firm, then 'bed in' pads according to (pad)manufacturers instruction..normally this involves fim braking, from normal driving speed, without stopping completely,for 8-10 applications,allowing at least 150 metres 'cool down time' between applications, and avoid emergency braking situations (if possible) for approx 160km(100miles+/-). This is what is known in the trade as a 'pad slap'..it is not the professional way to conduct brake repairs, but is better than running metal to metal..if you are not sure about it, you need to seriously consider if you are willing to hurt yourself or other road users to save a $,..would you encourage others to do this when you and your family use the same roads they do?..It's not the sort of thing where ppl say'at least you gave it a shot'.if you know what I mean..
pomandrew
April 2009