Rear Heater And Cooling Unit Assembly

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Discharge the refrigerant from the A/C system. Refer to DISCHARGING REFRIGERANT .
Drain the coolant from the engine cooling system. Refer to COOLING SYSTEM BLEEDING
Disconnect the rear heater core hoses from the rear heater core.
Disconnect the rear A/C pipes from the rear expansion valve.
Remove the rear RH interior trim panel. Refer to "REMOVAL AND INSTALLATION ".
Disconnect the following electrical connectors:
- Rear blower motor
- Rear blower motor resistor
- Rear air mix door motor
Disconnect the ducts from the rear heater and cooling unit assembly.
Remove the rear heater and cooling unit assembly.
Installation is in the reverse order of removal.

Fig 1: Removing Rear Heater And Cooling Unit Assembly
Courtesy of NISSAN MOTOR CO., U.S.A.

CAUTION:

Replace the O-ring of the low-pressure flexible hose and high pressure flexible hose with a new one, then apply compressor oil to it when installing it.
After charging refrigerant, check for leaks.

NOTE:

Fill the engine cooling system with the specified coolant mixture. Refer to COOLING SYSTEM BLEEDING .
Recharge the A/C system. Refer to EVACUATING SYSTEM AND CHARGING REFRIGERANT ".