Disco 1 Disco 1 abs brake troubleshooting. UPDATED

See updated first post.

UPDATE

i replaced the master cylinder, bled the system and got it working almost to perfection. A week later the brakes are crap again, spongy, feeling like there is air in the system. The pedal hits the stop especially on long gentle braking towards a junction then needing a bit more at the end.

I had a similar problem with my D2. Bought new master cylinder but with the D2 I decided to get the Lynx and power bled the system after standard bleed. It was fine then and has been since.