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Home >> Subaru >> 2018 >> WRX STI Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Cooling System (Except For STI)) >> Thermostat >> Installation

Section 9 (Engine Cooling System (Except For STI)): Thermostat: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Install a gasket to thermostat.
    NOTE:
    • Use a new gasket.
    • Align the positions of the jig pin (a) and gasket ribs (b).
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  2. Install the thermostat and thermostat cover.
    NOTE: Align the oil pan upper cutout (a) with the position of the thermostat rib (b).
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    Tightening Torque: 

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

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  3. Connect the radiator outlet hose to thermostat cover.
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  4. Install the center exhaust pipe. Ref. to EXHAUST(EXCEPT FOR STI)>Center Exhaust Pipe>INSTALLATION .
  5. Install the under cover. Ref. to EXTERIOR/INTERIOR TRIM>Front Under Cover>INSTALLATION .
  6. Lower the vehicle.
  7. Connect the ground terminal to battery sensor. Ref. to NOTE>NOTE>BATTERY .
  8. Fill engine coolant. Ref. to COOLING(EXCEPT FOR STI)>Engine Coolant>REPLACEMENT>FILLING OF ENGINE COOLANT .
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