Sounds to me like either the overhead spring, almost looking like a valve spring has got jammed or dislodged...
The weld on the pedal which pushes the rod for the hydraulics.
The master cylinder is leaking...
I have/had an Octavia i.e a VW golf and a common problem was the weld on the pedal fails... snaps a plastic clip damages the rod and the master cylinder and needs replacing...
P.S if it is that overhead assister spring... make sure it doesn't fire into your palm like mine did...
The weld on the pedal which pushes the rod for the hydraulics.
The master cylinder is leaking...
I have/had an Octavia i.e a VW golf and a common problem was the weld on the pedal fails... snaps a plastic clip damages the rod and the master cylinder and needs replacing...
P.S if it is that overhead assister spring... make sure it doesn't fire into your palm like mine did...