Filling apparatus for motor vehicle air-conditioning systems

The invention relates to a filling device for motor vehicle air conditioning systems that can be operated with non-hazardous and natural refrigerants, in particular CO2. The filling device is intended to have a high safety standard while simultaneously being simple to operate and cost-effective in construction. For this purpose, the filling device comprises a connection (12) for connecting the device (10) to the air conditioning system, a discharge line (18) containing a discharge valve (24) for defined discharge of the refrigerant from the air conditioning system, a pump-out line (20) having a pump (36) and connected to the connection (12) for complete pumping out of refrigerant residues and other impurities, and a refrigerant supply line (22) connected to the connection (12) for filling the air conditioning system with refrigerant from a refrigerant storage container (44).