I have to ask if VW has their own angle or standard on the brake line flanges. Or if there is a special tool to make new flange when replacing a brake line .
The reason is that I have replaced many brake lines in the past but never had so much issues with leakage before .
It seems that the "resonable priced" flange tool makes 2 angles on a double flange ,but the original flange seems like its 90 degrees on the backside and not 45 degrees like a usual SAE one makes.