Which one is the K1 clutch in Volkswagen's dual-clutch system?

[Melanie]

In a dual-clutch system, with the central flywheel as the boundary, the right half is the normally closed (engaged) K1 clutch. Overall structure of the dual-clutch mechanism: Clutch K1 actuator, inner main shaft, outer main shaft, clutch K1 thrust bearing control rod, clutch K2 coaxial actuator, clutch K2 thrust bearing, clutch K1 thrust bearing, clutch K1 thrust bearing cover The structure of K1 is similar to that of a manual transmission clutch, except that the clutch operation is performed by a hydraulic actuator located at the far left end of the main shaft via a pull rod through the shaft center. Actuator working principle: Oil pressure from the valve group causes displacement of the piston, which slides on the guide tube with low friction due to the inserted Teflon pad. The piston's action is transmitted through a dedicated rod to the thrust bearing, thereby disengaging the clutch. When the valve group no longer commands oil pressure, the diaphragm spring pushes the thrust bearing, which in turn causes the piston to retract via the control rod, restoring engagement conditions. When the valve group remains in the neutral position, the trapped oil is incompressible, preventing piston movement and thus maintaining its position. A dedicated Hall effect sensor transmits the piston position to the TCU control unit to monitor whether the odd-gear clutch is disengaged.