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Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine Intake System (Induction) And Turbocharger (2.5L) >> Air Cleaner Case >> Installation

Air Cleaner Case: Installation

  1. Install the air cleaner case bracket to the vehicle.

    Tightening torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb) 

    Fig 1: Locating Bolts Of Air Cleaner Case Bracket
    G10265125Courtesy of SUBARU OF AMERICA, INC.
  2. Install the bolt (A) and nut (B) which secure the air cleaner case (front) to the vehicle and to the air cleaner case bracket.

    Tightening torque: 

    Bolt (A) 

    6 N.m (0.6 kgf-m, 4.4 ft-lb) Nut (B) 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb) 

    Fig 2: Installing Bolt And Nut Of Air Cleaner Case (Front) To Vehicle
    G10265124Courtesy of SUBARU OF AMERICA, INC.
  3. Set the air cleaner element and air cleaner case (rear) to the air cleaner case (front).
    NOTE:
    • Check that there is no dirt or dust within the air cleaner case. If any dirt or dust is found, clean it.
    • Install the air cleaner element as shown in the figure.
      Fig 3: Sides Of Air Cleaner Element
      G11571863Courtesy of SUBARU OF AMERICA, INC.
    • When setting the air cleaner case (rear), align the protrusion of the air cleaner case (rear) to the air cleaner case (front) to insert.
    Fig 4: Setting Air Cleaner Case (Rear)
    G05955015Courtesy of SUBARU OF AMERICA, INC.
  4. Install the air intake boot.

    Tightening torque: 

    2.5 N.m (0.3 kgf-m, 1.8 ft-lb) 

    Fig 5: Locating Air Intake Boot Clamps
    G10264703Courtesy of SUBARU OF AMERICA, INC.
  5. Install the harness (D) and power steering oil pressure hose (suction hose) (C) to the air cleaner case (rear).
  6. Install the clip (B) to the air cleaner case (front).
  7. Connect the connector (A) to the mass air flow and intake air temperature sensor.
    Fig 6: Locating Intake Air Temperature Sensor Connector
    G10290156Courtesy of SUBARU OF AMERICA, INC.
  8. Install the chamber assembly. <Ref. to INSTALLATION , Chamber Assembly.>
  9. Install the air intake duct. <Ref. to INSTALLATION , Air Intake Duct.>
  10. Connect the battery ground terminal.