Cooling medium circuit for vehicle

The invention relates to a cooling medium circuit (1) for an air conditioning system, intended for a vehicle and comprising a compressor (2), a condenser (3), an expansion valve (4) and an evaporator (5). The invention is achieved by a further radiator/condenser (7) being provided in the cooling medium circuit (1) and by this further radiator/condenser (7) being situated adjacent to at least one vehicle part (8) which is preferably made of metal, in order to transfer thermal energy to the vehicle part (8) by mechanical contact.