2016 Subaru Legacy 2.5iFACTORY OEM SERVICE PROCEDURE

Intake Manifold Assembly: Removal

  1. Release the fuel pressure. < Ref. to RELEASING OF FUEL PRESSURE , PROCEDURE, Fuel. >
  2. Disconnect the ground terminal from battery sensor. < Ref. to BATTERY , NOTE, Repair Contents. >
  3. 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.
  4. Drain approximately 3.0 L (3.2 US qt, 2.6 Imp qt) of coolant. < Ref. to DRAINING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant. >
  5. Remove the clip (A), and loosen the clamps (B) and (C) securing the air intake boot.
    Fig 1: Identifying Air Intake Boot Clip And Clamps
    G10262107Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the air intake boot from the air cleaner case (rear) and throttle body, and move it to the left side wheel apron.
    Fig 2: Identifying Air Cleaner Case (Rear) And Throttle Body
    G10262108Courtesy of SUBARU OF AMERICA, INC.
  7. Disconnect the preheater hose from throttle body.
    Fig 3: Locating Preheater Hose Clamp
    G10262114Courtesy of SUBARU OF AMERICA, INC.
  8. Disconnect the PCV hose (A) from intake manifold assembly.
  9. Disconnect the connector (B) from manifold absolute pressure sensor.
  10. Disconnect the connector (C) from throttle body.
    Fig 4: Identifying Manifold Absolute Pressure Sensor And Throttle Body Connector
    G10262115Courtesy of SUBARU OF AMERICA, INC.
  11. Remove the bolt securing the EGR cooler to the EGR control valve.
  12. Loosen the bolts holding the EGR cooler to the cylinder head RH.
    Fig 5: Identifying EGR Cooler Bolts
    G10262116Courtesy of SUBARU OF AMERICA, INC.
  13. Disconnect the brake booster vacuum hose (A), and disconnect the connector (B) from the purge control solenoid valve.
    Fig 6: Identifying Brake Booster Vacuum Hose And Connector
    G10262117Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the air intake duct. < Ref. to REMOVAL , Air Intake Duct. >
  15. Disconnect the connector (A) from the mass air flow and intake air temperature sensor, and remove the clip (B) securing the bulkhead wiring harness.
  16. Remove the clip (C), and the air cleaner case (rear) together with the air cleaner element.
    Fig 7: Identifying Air Cleaner Case (Rear), Clip And Connector
    G10262118Courtesy of SUBARU OF AMERICA, INC.
  17. Disconnect the connector from the EGR control valve.
    Fig 8: Locating EGR Control Valve Connector
    G10262119Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the intake manifold protector RH.
    Fig 9: Locating Intake Manifold Protector RH Bolt
    G10262120Courtesy of SUBARU OF AMERICA, INC.
  19. Remove the clip (A) securing the engine harness to the intake manifold assembly, and disconnect the connector (B) from the tumble generator valve and disconnect the connector (C) from the fuel injector #3.
  20. Disconnect the fuel delivery pipe from the fuel pipe RH.
    CAUTION:
    • Be careful not to spill fuel.
    • Catch the fuel from the pipes using a container or cloth.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.