Front Heater Unit: Removal

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

DRAIN ENGINE COOLANT FROM RADIATOR
HINT:

It is not necessary to drain out all coolant.
DISCONNECT WATER HOSES FROM HEATER RADIATOR PIPES
1. Using pliers, grip the claws of the hose clip and slide the clip along the hose.
2. Disconnect the water hoses from the heater radiator pipes.
  HINT:
  
  At the time of installation, refer to the following items.
  
  Fig 1: Disconnecting Water Hoses From Heater Radiator Pipes
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  - Push the water hose onto the heater radiator pipe to the second ridge on the pipe.
  - Install a hose clip in the position as shown in the illustration.
REMOVE INSTRUMENT PANEL AND REINFORCEMENT (See REMOVAL )
REMOVE FRONT COOLING UNIT (See REMOVAL )

Fig 2: Identifying Hose Clamp Positioning For Installation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE HEATER UNIT
1. Remove the lower defroster nozzle.
  
  Fig 3: Removing Lower Defroster Nozzle
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the connector.
3. Remove the 4 nuts and heater unit.
  
  Fig 4: Removing 4 Nuts And Heater Unit
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002