Good evening from Sweden the following problem, After coupling change including two-mass swing wheel ( the old one was defective ) I have the following problems I can not get a proper separation despite intensive discharge of the coupling, so the reverse gear goes hard. Ventilation by compressed air and ventilator. The clutch pedal remains relatively soft. Before the problem was not there. It could be that there is still some residual air in the clutch sensor cylinder. The engine also dies off in idle mode. Does anyone have an idea ? In advance thank you very much