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Water Tank Pipe Assembly

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

If the engine coolant is spilt over the engine, exhaust pipe or the under cover, completely wipe it off to avoid emission of smoke or causing a fire. 

  1. Release the fuel pressure. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL>PROCEDURE>RELEASING OF FUEL PRESSURE .
  2. Open the fuel filler lid and remove the fuel filler cap.
    NOTE:

    This operation is required to release the inner pressure of the fuel tank. 

  3. Collect the refrigerant. Ref. to AIR CONDITIONER>REFRIGERANT RECOVERY PROCEDURE>PROCEDURE .
  4. Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  5. Remove the A/C compressor. Ref. to AIR CONDITIONER>COMPRESSOR>REMOVAL .
  6. Drain engine coolant. Ref. to COOLING (H4DOTC)> ENGINE COOLANT>REPLACEMENT>DRAINING OF ENGINE COOLANT .
  7. Remove the generator. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>GENERATOR> REMOVAL .
  8. Remove the intake manifold assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>INTAKE MANIFOLD ASSEMBLY>REMOVAL .
  9. Remove the EGR pipe. Ref. to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (H4DOTC)>EGR PIPE>REMOVAL .
  10. Remove the high-pressure fuel delivery pipe assembly. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>HIGH PRESSURE FUEL DELIVERY PIPE>REMOVAL>HIGH-PRESSURE FUEL DELIVERY PIPE ASSEMBLY .
  11. Disconnect the connectors from the engine coolant temperature sensor.
    G14601347Courtesy of SUBARU OF AMERICA, INC.
  12. Disconnect the radiator inlet hose (A) and water hose (B).
    G14601348Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect the hose heater inlet (A), water hose (B), and water hose (C). (CVT model)
  14. Disconnect the hose heater inlet (A) and water hose (B). (MT model)
    G14601349Courtesy of SUBARU OF AMERICA, INC.
  15. Remove the bolts securing the water tank pipe assembly.
  16. Remove the water tank pipe assembly and the water hose as an assembly.
    G14601350Courtesy of SUBARU OF AMERICA, INC.
  17. Remove the O-ring from the cylinder block.
    G14601351Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the water hose from EGR cooler.
    NOTE:

    Perform this procedure only when required. 

G14601352Courtesy of SUBARU OF AMERICA, INC.
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