Hey guys. Doing brakes and Rotors on my Mk4 golf tdi (2005). On my rear drivers side caliper (left side), I can’t get the piston to retract for the life of me. I’ve got the special tool for it (one of those kits with all the different adapters so yes I’ve got a plate on that keys into the piston properly). I rotate the piston clockwise and it’ll spin for days but it just won’t actually retract. Do I need a new Caliper? This is my first time doing this so it’s quite possible I’m doing something simple wrong. Any ideas?