Section 139 (Cooling (Service Information) (4GR-FSE)): Thermostat: Removal: Removal

WARNING: This page is about a different car, the 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

REMOVE COOL AIR INTAKE DUCT SEAL . Refer to REMOVAL - Step 1
REMOVE NO. 1 INLET AIR CLEANER . Refer to REMOVAL - Step 19
REMOVE V-BANK COVER SUB-ASSEMBLY . Refer to REMOVAL - Step 4
DRAIN ENGINE COOLANT See step 4
SEPARATE RADIATOR OUTLET HOSE
1. Disconnect the hose from the water inlet with thermostat.
  
  Fig 1: Disconnecting Hose From Water Inlet With Thermostat
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
1. Remove the 3 nuts, water inlet with thermostat and gasket.
  
  Fig 2: Identifying Nuts Water Inlet Thermostat
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002