I am in the middle of fixing hydraulic issues on my 240D as well.

Does the pedal feel as stiff as it did when it was healthy and working well? If not, there is still air stuck in the system somewhere.

I changed the master cylinder on mine last weekend and spent most of the next two days (off and on) trying to bleed it using a pressure bleeder as you did. I could not get much progress that way. The only thing that worked was using the factory workshop procedure of bleeding upwards from the right front brake caliper through the slave cylinder. I still don't have it as solid as it used to be (clutch engages too close to the floor), but it seems to work in first and reverse. I am going to do this again this weekend and get the rest of the air out. I used vinyl tubing of two different diameters joined in the middle (the nipples are different) held on with hose clamps.

Rick

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)