If it is suspected that the air is still in the system (pedal soft) after normal bleeding (several times)
bleed secondary and primary circuit of each wheel!
Bleeding routine is automatically ended 50s after start!
Open bleeder valve
Constantly depress brake pedal (pump)
Does brake fluid flow out free of bubbles?
If yes, close bleeder valve. If no, repeat routine.
Carry out bleeding at the other wheels