IS 250C V6-2.5L (4GR-FSE) (2011)
Thermostat: Service and Repair
Removal
4GR-FSE COOLING: THERMOSTAT: REMOVAL
1. REMOVE COOL AIR INTAKE DUCT SEAL See: Engine/Service and Repair/Removal and Replacement/Engine Assembly/Removal
2. REMOVE INLET NO. 1 AIR CLEANER See: Engine/Service and Repair/Removal and Replacement/Engine Assembly/Installation
3. REMOVE V-BANK COVER SUB-ASSEMBLY See: Engine/Service and Repair/Removal and Replacement/Engine Assembly/Removal
4. REMOVE ENGINE UNDER COVER
5. DRAIN ENGINE COOLANT See: Coolant/Service and Repair
6. SEPARATE NO. 2 RADIATOR HOSE
(a) Disconnect the No. 2 radiator hose from the inlet water with thermostat sub-assembly.
7. REMOVE INLET WATER WITH THERMOSTAT SUB-ASSEMBLY
(a) Remove the 3 nuts, inlet water with thermostat sub-assembly and gasket.