LEMON Manuals: Even more car manuals for everyone
Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis >> Engine Mechanical >> Exhaust System (Except For STI) >> Front Exhaust Pipe >> Removal

Front Exhaust Pipe: Removal

CAUTION: Vehicle components are extremely hot after driving. Be wary of receiving burns from heated parts.
  1. Remove the collector cover. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Collector Cover>REMOVAL .
  2. Disconnect the ground terminal from battery sensor. Ref. to NOTE>NOTE>BATTERY .
  3. Remove the air intake duct. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Air Intake Duct>REMOVAL .
  4. Remove the radiator sub fan and fan motor. Ref. to COOLING(EXCEPT FOR STI)>Radiator Sub Fan and Fan Motor>REMOVAL .
  5. Drain engine coolant. Ref. to COOLING(EXCEPT FOR STI)>Engine Coolant>REPLACEMENT>DRAINING OF ENGINE COOLANT .
  6. Lower the vehicle.
  7. Remove the bolts which secure the water pump pulley cover to the turbocharger stay.
    G09480657
  8. Disconnect the engine coolant hose from the water pipe assembly.
    G11267175
  9. Remove the bolts which secure the intake duct No. 2 to the turbocharger.
    G11266618
  10. Lift up the vehicle.
  11. Disconnect the connector on the front oxygen (A/F) sensor from the engine wiring harness, and remove the clip (A) which secures the front oxygen (A/F) sensor harness to the water pump pulley cover.
    G09480660
  12. Disconnect the connector on the rear oxygen sensor from the engine wiring harness, and disconnect the ground cable from the exhaust pipe cover.
    G10267114
  13. Disconnect the union screw pipe assembly from the oil pipe assembly, and disconnect the engine coolant hose from the water pipe RH.
    CAUTION: In order to prevent damaging the oil pipe assembly, fix the section (a) shown in the figure when loosing the flare nut on the union screw pipe assembly, and avoid the part from rotating together while loosening the nut.
    G12442756
  14. Disconnect the vacuum control hose from the wastegate control solenoid valve. (Except for Canada)
    G11267180
  15. Disconnect the vacuum control hose from the wastegate control solenoid valve, and disconnect the engine coolant hose from the intake duct No. 1. (For Canada)
    G12442758
  16. Remove the bolts which secure the intake duct No. 1 to the turbocharger.
    G09480663
  17. Remove the nuts which secure the center exhaust pipe (rear) to the center exhaust pipe (front).
    G10267117
  18. Remove the bolts, springs, and nuts which secure the rear exhaust pipe to the center exhaust pipe (rear).
    G09480665
  19. Remove the bolt which holds center exhaust pipe (rear) to the hanger bracket, and remove the center exhaust pipe (rear).
    NOTE: For CVT model, removing the exhaust pipe bracket from the center exhaust pipe (rear) will adversely affect the positioning accuracy. Therefore, Do Not remove the bolts in section (a) shown in the figure.
    • CVT model
      G10267119
    • MT model
      G10267120
  20. Remove the oil catch tank. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Oil Catch Tank>REMOVAL .
    CAUTION: This procedure is required to prevent oil from remaining in the compressor and turbine areas if the residual oil inside the oil catch tank back flows.
  21. Remove the bolts which secure the turbocharger stay.
    G09480669
  22. While holding the front exhaust pipe with transmission jack, remove the nuts which hold the front exhaust pipe to the cylinder head exhaust port, and remove the front exhaust pipe.
    G09480670
  23. Remove the water pump pulley cover and exhaust pipe stay from the engine and turbocharger stay.
    G09480671
  24. Remove the turbocharger stay from the engine.
    G09480672
scientia non olet · About LEMON Manuals