Other Auxiliary Units

Other Auxiliary Units

NOTE: See the relevant assemblies for further information.

The power-steering pump is also energized with a nominal voltage 12 V DC to safeguard power assistance while the combustion engine is off.

The additional electrical oil pressure pump for supplying oil to the transmission ensures that a sufficient quantity of oil flows to all moving parts and that the gear can still be changed even when the combustion engine is switched off.

Electrically powered pump units enable the brake and power assistance system to function when driving solely under electric power, for example.

The cooling of powerful components from the hybrid drive train such as the electric motor and the power electronics must continue when the combustion engine is switched off. Two electric coolant pumps are used for this.