Operation CHARM: Car repair manuals for everyone.

Hydraulic Unit



Hydraulic Control Unit







The hydraulic control unit performs the following tasks:
- Controls the system and reduces pressure
- Supplies oil to the actuators, clutches, actuating cylinders, cooling system and lubrication system
- Activates the clutches and actuating cylinders
- Provides emergency hold functions in mechanical transmission limp-home mode

Pressure Channels







The pressure channels of the gears run directly into the shifting unit behind. The oil ducts for actuating the two clutches and the cooling-flow oil duct for the double clutch pass through the transmission housing, across into the clutch bell-housing, reaching the rotary transmission feed-through point via the centering plate. The oil duct for lubricating the gear wheel set extends to the oil line, which branches off to the gear wheels and oils these.