Q: How Do You Remove and Install the Radiator and Air Conditioning Condenser Unit on Infiniti G35?
A: On 2007 and later 3502 and G35 Sedan models, the Radiator and air conditioning condenser are built as a single assembly and are removed as a unit. Additionally, the receiver-drier should be replaced whenever the condenser is replaced due to damage, which could allow moisture and contaminants into the system. Before starting, have the air conditioning system discharged by a dealer service department or an automotive air conditioning shop. Disconnect the cable from the negative battery terminal. Remove the radiator. Except for specific models, the condenser is mounted to the radiator with mounting bolts at the top and small tabs that fit into brackets at the bottom. Use a special tool to disconnect the refrigerant lines to the condenser, plug the lines and fittings, and discard the O-ring seals. Remove the horn and the ambient air sensor bracket. Disconnect the air conditioning pressure switch. Carefully extract the condenser from the engine compartment. If the original condenser will be reinstalled, store it carefully to prevent oil spillage. If a new condenser is being installed, pour 1.2 oz (35 ml) of the appropriate refrigerant oil into it. Install new R-134a compatible O-ring seals on the refrigerant line fittings. Reinstall the components in reverse order, tightening the mounting fasteners as specified. Lastly, have the system evacuated, recharged, and leak-tested by the shop that initially discharged it.