Electrical Feed Pump
The electrical feed pump is fitted on the clutch unit and is supplied with voltage from the Differential Electronic Module (DEM). When the engine is started and reaches an engine speed of over 400 rpm the electrical feed pump is supplied with voltage from the control module.
The feed pump pumps oil to the axial pistons whose rollers are applied to the cam disc. At the same time oil flows to the working piston so that the play in the disc package is eliminated and the clutch's capacity for rapid reaction and control is prepared.
Four-wheel drive does not function in the event of a fault in the feed pump.
The feed pump can be diagnosed.