Ithangi lokunweba livamise ukusetshenziselwa uhlelo lokupholisa lezinjini ezivuthayo zangaphakathi. Ifakwe ngaphezu kwe-radiator futhi ikakhulukazi inethangi lamanzi, isivalo sethangi lamanzi, ivalvu yokukhulula umfutho kanye nenzwa. Umsebenzi wayo oyinhloko uwukugcina ukusebenza okuvamile kwesistimu yokupholisa ngokujikeleza isipholile, ukulawula ukucindezela, nokwamukela ukunwetshwa kwesipholile, ukugwema ukucindezela okukhulu nokuvuza okupholisayo, nokuqinisekisa ukuthi injini isebenza emazingeni okushisa avamile okusebenza futhi iqinile futhi izinzile.