http://www.youtube.com/watch?v=rA8G-Qhudvk
watch this. this is how u do it i got no time for people who use this big words we ay mechanics
all u got to is pop ur bonnet befor u start remove brake cylinder cap and take that sexy wheel off get a big flat head screw driver shuv it in like u do ya bird prise the brakes backwards untill it wow go no more now look at the back of the calpier there 2 13mm nuts take top one fully out and loosen the bottom one and then lift the calper up take the hold brakes out dow forget to remober wear thos metal plates go take a pic if ur not sure then replace brakes done finshed
jon the astra wizz, April 2013