Lexus IS250 IS220d GSE20 ALE20 4GR-FSE COOLING

THERMOSTAT - REMOVAL

1. REMOVE COOL AIR INTAKE DUCT SEAL
Thermostat - Removal. 4GR-FSE COOLING. Lexus IS250 IS220d GSE20 ALE20

Remove the 11 clips and intake duct seal.

2. REMOVE V-BANK COVER SUB-ASSEMBLY
Thermostat - Removal. 4GR-FSE COOLING. Lexus IS250 IS220d GSE20 ALE20

Raise the V-bank cover to disengage the clip on the rear of the cover. Raise the cover again to disengage the 2 clips on the front of the cover and remove the cover.

  • NOTICE:
  • Attempting to disengage both front and rear clips at the same time may cause the cover to break.
3. REMOVE NO. 1 INLET AIR CLEANER
Thermostat - Removal. 4GR-FSE COOLING. Lexus IS250 IS220d GSE20 ALE20

Remove the bolt, clip and inlet air cleaner.

4. DRAIN ENGINE COOLANT
  • NOTICE:
  • Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

Remove the radiator cap and reservoir tank cap.

Loosen the radiator drain cock plug and 2 cylinder block drain cock plugs. Then drain the coolant.

  • HINT:
  • Collect the coolant in a container and dispose of it according to the regulations in your area.

Thermostat - Removal. 4GR-FSE COOLING. Lexus IS250 IS220d GSE20 ALE20

5. SEPARATE RADIATOR OUTLET HOSE
Thermostat - Removal. 4GR-FSE COOLING. Lexus IS250 IS220d GSE20 ALE20

Disconnect the hose from the water inlet with thermostat.

6. REMOVE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
Thermostat - Removal. 4GR-FSE COOLING. Lexus IS250 IS220d GSE20 ALE20

Remove the 3 nuts, water inlet with thermostat and gasket.

LEXUS IS250, IS220d / GSE20 ALE20