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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 1080 (Automatic HVAC System) >> Heater & Cooling Unit Assembly >> Removal and Installation >> Front Heater And Cooling Unit Assembly

Front 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.
  1. Discharge the refrigerant from the A/C system. Refer to "DISCHARGING REFRIGERANT ".
  2. Drain the coolant from the engine cooling system. Refer to ENGINE COOLANT
  3. Remove the cowl top extension.
  4. Remove the exhaust system. Refer to EXHAUST SYSTEM .
  5. Disconnect the front heater hoses from the front heater core.
  6. Disconnect the high/low pressure pipe from the front expansion valve.
  7. Move the two front seats to the rearmost position on the seat track.
  8. Remove the instrument panel and console panel. Refer to INSTRUMENT PANEL ASSEMBLY .
  9. Remove the steering column. Refer to STEERING COLUMN .
  10. Disconnect the instrument panel wire harness at the RH and LH in-line connector brackets, and the fuse block (J/B) electrical connectors.
  11. Disconnect the steering member from each side of the vehicle body.
  12. Remove the front heater and cooling unit assembly with it attached to the steering member, from the vehicle.
    CAUTION: Use care not to damage the seats and interior trim panels when removing the front heater and cooling unit assembly with it attached to the steering member.
  13. Remove the front heater and cooling unit assembly from the steering member.
  14. Installation is in the reverse order of removal.
    CAUTION:
    • Replace the O-ring of the low-pressure flexible hose and high-pressure flexible hose with a new one, and apply compressor oil to it when installing it.
    • After charging the refrigerant, check for leaks.
    NOTE:
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