put the card in the reader, hold in the start button but DONT press the brake or the clutch pedals, after 5(i think) secs the ignition will come on but it doesn't start, now just use the lever/switch thingy to put the handbrake off, then just jack up and change pads as usual, been a while since i've done a set but i'm sure thats how i do them,
just obviously make sure you pump up the brake pedal after fitting but before turning ignition off or touching the handbrake lever/switch thingy again, as if the piston isnt pumped up the motors will have a hissy fit, the calipers are just normal wind back pistons, they even have handbrake ables going to them, the electric part is just 2 small motors mounted on the rear axle that pulls he cables on and off so nothing fancy like the passats and new audi's with the motor built into the calipers that need to be reset on the diagnostic machine, simples