The factory manual said something about bleeding the master by opening the brake pedal bleed screw. Maybe that is only on the older version.

So I should attempt a loosening of each line nut with pedal down kind of thing again?

Thanks to all.

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63 220S W111
76 300D W115
2013 VW JSW TDI M6

previously-
73 280 SEL 4.5
86 300E 5 speed
2010 VW Jetta TDI M6