The clutch operation on the MMT6/6-speed manual transmission is based on the proven system of hydraulic force transfer.
In addition, a clutch pedal vibration damper is installed in the hydraulic line. Pulsating vibrations carried over from the engine to the clutch pedal are damped.
In the unoperated state, the pressure spring of the clutch slave cylinder already applies a pressure of 100 N to the release bearing on the diaphragm spring of the clutch pressure plate.
This reduces release bearing wear, because the bearing does not need to be accelerated to engine speed during clutch engagement.
The hydraulic clutch system is bled through the bleed valve. This is located in the feed and return of the hydraulic line.
NOTE:Refer to the corresponding workshop literature for an exact description of the topping up and bleeding processes for the clutch slave cylinder.
Because of the self-adjusting clutch mechanism, the maximum stroke of the clutch slave cylinder is reduced, and this protects the radial seal. The clutch slave cylinder therefore only needs to be changed if there is a leak.
NOTE:There is no need to change the clutch slave cylinder when the clutch friction disc is renewed.
In order to achieve better sealing of the transmission, the transmission input shaft radial oil seal is not integrated in the clutch slave cylinder as in the MTX-75 and VXT-75 transmissions, but is mounted separately in the clutch housing.
The clutch pedal