Lincoln Navigator: Rear Climate Control / Rear Climate Control Housing. Removal and Installation

Removal

NOTICE: During the removal or installation of components, cap, tape or otherwise appropriately protect all openings and tubes/fittings to prevent the ingress of dirt or other contamination. Remove caps, tape and other protective materials prior to installation.

NOTE: Removal steps in this procedure may contain installation details.

1. Recover the refrigerant. Refer to the appropriate Recovery procedure in Group 412.
   

1. Drain the cooling system.
   Refer to: Cooling System Draining, Vacuum Filling and Bleeding (303-03 Engine Cooling - 3.5L EcoBoost (272kW/370PS)) .
   

1. Remove the RH loadspace trim panel.
   Refer to: Loadspace Trim Panel (501-05 Interior Trim and Ornamentation, Removal and Installation).
   

1. NOTE: Be prepared to collect escaping fluid.

   Disconnect the quick release couplings from the rear heater core.
   Refer to: Quick Release Coupling (310-00 Fuel System - General Information - 3.5L EcoBoost (272kW/370PS)) .
   

1. 
   Remove the nut and position the rear thermostatic expansion valve manifold and tube assembly aside.
   
   • Make sure to cover any open ports to prevent debris from entering the system.
     Torque: 80 lb.in (9 Nm)

1. 1. Disconnect the electrical connector.
      
   2. Remove the bolts.
      Torque: 71 lb.in (8 Nm)

1. Disconnect the electrical connector and remove the rear footwell duct.
   

1. 1. Disconnect the duct.
      
   2. Remove the rear climate control housing.
      

Installation

1. To install, reverse the removal procedure.
   

1. NOTICE: Only use the specified material to lubricate the seals.

   Install and lubricate new O-ring seals. Refer to the appropriate Specifications in Group 412.
   

1. Lubricate the refrigerant system with the correct amount of clean PAG oil. Refer to the appropriate Refrigerant Oil Adding procedure in Group 412.
   

1. Fill and bleed the cooling system.
   Refer to: Cooling System Draining, Vacuum Filling and Bleeding (303-03 Engine Cooling - 3.5L EcoBoost (272kW/370PS)) .