Hi, I've done it once with VCDS. I don't know VAWS 3.0 and if there are any difference. Here is the procedure with VCDS: 1) Ignition on, engine off, handbrake released, foot NOT on brake pedal, open 03-ABS > Basic setting. Then look for "Start lining change" or something to that effect in the drop down menu. 2) Piston is then pushed back, do not wind, you'll break it. 3) No tool needed, a lever bar between disc and pad or flat screw driver, G clamp or any other tool will work to push back 4) Once pads changed and caliper refitted (and spring as well), pump the brake pedal lots till full contact is made 5) Ignition on, engine off, foot NOT on brake, open 03-ABS > Basic settings. Then look for "End lining change" in the drop down menu, wait till its done (roughly 40 seconds). This enables the handbrake learning the new rear pad thickness in order to adjust the correct pressure to apply, when handbrake is ON. 6) Cycle ignition, put handbrake on and off a few times, done. Don't forget to brake gently for 200km or so to bed the pads... 😉 Hope this helps.