Interchange Part Numbers: AE 92 000P--MAHLE, 351330701, 70818579, 351 330-701--8FV, MSV545--AVA Clever Choice. The evaporator receives cool liquid refrigerant which has been cooled by change of state in the condenser, the warm cabin air flows through the evaporator which causes the air to cool and liquid refrigerant to increase in temperature and change to vapour.