Disassembly [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE COOLER EXPANSION VALVE
1. Using a 4 mm hexagon wrench, remove the 2 hexagon bolts and cooler expansion valve.
  
  Fig 1: Identifying Cooler Expansion Valve Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY
1. Remove the 3 screws and No. 1 air conditioning radiator damper servo sub-assembly.
  
  Fig 2: Identifying Air Outlet Control Servo Motor Sub-Assembly & Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY
1. Remove the 2 screws and No. 2 air conditioning radiator damper servo sub-assembly.
  
  Fig 3: Identifying No. 2 Air Mix Damper Servo Sub-Assembly & Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 3 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (for 3 Zone Type)
1. Remove the 4 screws and No. 3 air conditioning radiator damper servo sub-assembly.
  
  Fig 4: Identifying No. 3 Air Conditioning Radiator Damper Servo Sub-Assembly & Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE QUICK HEATER ASSEMBLY
1. Disengage the 5 clamps.
  
  Fig 5: Identifying Quick Heater Assembly, Screws & Clamps
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 2 screws and quick heater assembly as shown in the illustration.
3. Remove the screw.
  
  Fig 6: Identifying Quick Heater Bracket & Screw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Disengage the guide and remove the quick heater bracket.
REMOVE HEATER RADIATOR UNIT SUB-ASSEMBLY
1. Disengage the 3 claws and remove the heater clamp.
  
  Fig 7: Identifying Heater Radiator Unit Sub-Assembly Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the screw and clamp.
  
  Fig 8: Identifying Heater Radiator Unit Sub-Assembly Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the heater radiator unit sub-assembly from the air conditioning radiator assembly as shown in the illustration.
  
  Fig 9: Removing Heater Radiator Unit Sub-Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  NOTE:
  Prepare a drain pan or cloth in case the cooling water leaks.
REMOVE NO. 1 COOLER EVAPORATOR SUB-ASSEMBLY
1. Remove the 6 screws.
  
  Fig 10: Identifying No. 1 Cooler Evaporator Sub-Assembly Screws & Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disengage the 7 claws and remove the plate cover.
3. Disengage the clamp.
  
  Fig 11: Identifying No. 1 Cooler Evaporator Sub-Assembly Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the No. 1 cooler evaporator sub-assembly with evaporator temperature sensor (No. 1 cooler thermistor) from the plate cover.
5. Remove the 2 O-rings from the No. 1 cooler evaporator sub-assembly.
  
  Fig 12: Identifying No. 1 Cooler Evaporator Sub-Assembly O-Rings
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE EVAPORATOR TEMPERATURE SENSOR (NO. 1 COOLER THERMISTOR) See step 7