So, the only way to release my nsf brake on my 2017 Octavia VRS is to open the bleed nipple, there is excessive resistance felt through the pedal when trying to bleed fluid or apply the brake after the piston is wound back (again by allowing fluid out through the bleed nipple) no faults on VCDS. The caliper is in great condition and free to move on its pins, the piston winds back easily when the bleed nipple is open. Any ideas?

Stuck modulating valve in the ABS block, no free play in master cylinder pushrod.

 

Has anybody been working on the brake or clutch master cylinders or in the pedal box area?