Condenser HVAC: Service and Repair

REFRIGERANT LINES


VQ35HR : Removal and Installation of Condenser


REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air cleaner case and air duct (RH/LH). Refer to Exploded View.
3. Remove front grille. Refer to Front Grille.





4. Remove mounting clips and bolts, and then remove bracket.
5. Remove radiator upper mount, move radiator and condenser to the engine side.





6. Remove mounting bolt from high-pressure flexible hose bracket.
7. Remove high-pressure pipe1 from vehicle clip.





8. Disconnect high-pressure flexible hose from condenser.
a. Set a disconnector (SST: 9253089912) on A/C piping.
b. Slide a disconnector backward until it clicks.
c. Slide A/C piping backward and disconnect it.

CAUTION:
Cap or wrap the joint of condenser and the A/C piping with suitable material such as vinyl tape to avoid the entry of air.





9. Disconnect high-pressure pipe 1 from condenser.
a. Set a disconnector (SST: 9253089908) on A/C piping.
b. Slide a disconnector upward until it clicks.
c. Slide A/C piping upward and disconnect it.

CAUTION:
Cap or wrap the joint of condenser and the A/C piping with suitable material such as vinyl tape to avoid the entry of air.





10. Disconnect refrigerant pressure sensor connector.
11. Disconnect hood rock switch connector.





12. Remove radiator reservoir tank. Refer to Component.
13. Remove mounting screws from condenser.





14. Pull condenser forward at an angle. Remove condenser from radiator.

CAUTION:
Be careful not to damage the core surface of condenser and radiator.






INSTALLATION
Installation is basically the reverse order of removal.

CAUTION:
- Replace O-rings with new ones. Then apply compressor oil to them when installing.
- Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping straight in axial direction.
- Insert piping securely until a click is heard.
- After piping connection is completed, pull male-side piping by hand to check that connection does not come loose.
- Check for leakages when recharging refrigerant.

High-pressure flexible hose bracket mounting bolt : 4.2 N�m (0.43 kg-m, 37 in-lb)