DEVICE FOR MAINTAINING A THERMAL SYSTEM FOR A MOTOR VEHICLE

Method for maintaining a thermal system for a motor vehicle comprising • a first assembly comprising components, • a second assembly comprising conduits for a heat transfer fluid, connecting the components of the first assembly, and • a third assembly comprising at least one solenoid valve, the thermal system providing a first circuit in series connecting all the components of the first assembly together when the solenoid valve or valves of the third assembly are all in a rest state, the maintenance method comprising - a first step of implementing the first circulation, then - a second step of draining a heat transfer fluid circulating in the second assembly of conduits, then - a third step of filling the second assembly of conduits with a new heat transfer fluid, then - a fourth step of evacuating gas bubbles contained in the second assembly of conduits.