ive seen this at work and can be a right pita :/If the caliper and pads are free, and you're scratching your head it could be this.
I've seen the flexible hose collapse internally and work like a one-way valve keeping the pressure at the caliper.
if its warped badly youll feel the brake pedal pulsing when you brakeno i dont have that gauge will get a garahe to check, and i noticed when i redune the pads at like 7pm, there really tight, :/,
thats why i change 1 pad at a time leon, it holds the springy bit in placei got them working now,the only thing i saw was the lil springy bits on the calliper carrier 1had seezed so pulled it out and regressed it and everything working fine now
![]()