Did you bleed the system or just replace the line and refill? It won't work with any air bubbles in the lines, see the FAQ for how to bleed the system. I would also flush the brake lines. You definitely don't want air in those. Since you just had this problem I would guess the problem is related to it. Any more details?
Also, since this is a technical question, moved to mk4 section.
welcometomyturbodies
Also, since this is a technical question, moved to mk4 section.
welcometomyturbodies