1. Clutch disc; 2. Pressure plate; 3. Clutch release bearing; 4. Clutch release fork; 5. Hex socket screw, 25 Nm.
The clutch consists of a clutch pressure plate, a clutch disc (slave drive) and hydraulic control system. Pressure and driven disks are located on the engine flywheel.
The clutch pressure plate is connected to the flywheel, which is screwed to the engine crankshaft. Between the clutch pressure plate, which is pressed by the clutch pressure plate to the flywheel. The driven disk is centered by the gear input shaft of the gearbox.
Pressing the clutch pedal with your foot (clutch release) With the help of a sensor cylinder, pressure is created and transmitted through a hydraulic pipeline to the clutch control cylinder, which is screwed to the transmission mechanism. The piston of the distributor cylinder, by means of the clutch release fork, presses the clutch release bearing towards the disc spring of the pressure plate and lifts it slightly. Due to this, the clutch disc between the flywheel and the pressure plate becomes free, and thus the connection between the engine and the gearbox is eliminated.
If the clutch pedal returns to the up position (clutch engagement), the pressure plate pushes the clutch disc against the flywheel. Again, a force closure is formed, since the pressed clutch disc is rigidly connected to the gearbox shaft by means of gearing.
When the clutch is engaged and disengaged, due to the easy slipping process, the friction lining of the driven disk is slightly abraded. Therefore, the clutch disc is a wear part, but the average life of its service life is more than 100,000 kilometers of the car. Wear depends largely on the load (e.g. driving a car with a trailer) and from the mode of movement. The clutch is maintenance free.
The 2.0 liter air-conditioned, 2.2 liter and 2.8 liter engines are equipped with a double-shell flywheel. The double-case flywheel has a spring-damping system in order to reduce the transmission of torsional vibrations generated by the engine. This further reduces noise transmission in the lower speed range. The clutch disc for this flywheel additionally consists of a hub, gripping plate and clutch friction lining. The pressure plate and clutch release bearing have also been adapted to the modified placement conditions.