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HOMESERVICE MANUALSSUBARU2017WRX STIREPAIR AND DIAGNOSISBODY & FRAMESEATSSEAT SYSTEMFRONT SEATASSEMBLY
2017 Subaru WRX STI

Front Seat: Assembly

2017 Subaru WRX STISECTION Assembly
CAUTION:
  • Do not confuse the harness routing of the side airbag harness and the seat belt inner - front harness, etc. Assembling with harnesses improperly routed may cause the harness to get caught and short out.
  • If the flat mat hook of the frame assembly - front backrest is deformed or comes off due to the deformation, replace the hook with a new part.
    Fig 1: Locating Front Backrest Mat Hooks
    G06653811Courtesy of SUBARU OF AMERICA, INC.
  • Before handling the airbag system components, refer to "CAUTION" of "General Description" in "AIRBAG SYSTEM". <Ref. to CAUTION , General Description.>
  • Make sure that the side airbag module is installed as shown in the figure.
Fig 2: Airbag System Components Location
G11582794Courtesy of SUBARU OF AMERICA, INC.

Besides, if the cover COMPL - front backrest is not installed securely, the side airbag may not be activated properly, therefore keep strictly to the following procedures.
  • Be careful not to stain or damage the cover COMPL - front backrest during assembly.
  • Do not reuse hog rings.
  • Secure the hog ring using hog ring pliers.
  • Install the hog rings to the specified points securely and make sure that there is no wrinkle or twisting on the cover COMPL - front backrest.
  1. Install the seat heater module.
    CAUTION:
    • If the seat heater module is removed, replace the pad assembly with a new part. (Driver's seat)
    • If the seat heater module is removed, replace the seat cushion pad & frame assembly with a new part. (Passenger's seat)
    • If the seat heater module is reused, remove the polyurethane section from the reverse side completely and attach a new pad assembly with a double-sided tape.

    Preparation items: 

    Double-sided tape: NITTO DENKO 501L or equivalent 

  2. Make sure that there is no foreign matter on side airbag module.
  3. Assemble the seat cover.
    1. Adjust so that the left and right clearances between wire and seat pad become equal, and mark the seat pad.
      Fig 3: Left And Right Clearances Between Wire And Seat Pad
      G11582795Courtesy of SUBARU OF AMERICA, INC.
    2. Mark the center of the wire on the pad side to which the hog ring is attached.
      Fig 4: Marking Center Of Wire On Pad Side
      G11582796Courtesy of SUBARU OF AMERICA, INC.
    3. Insert the wire into the seat cover, and align the wire with the position marked in step  1.
      Fig 5: Inserting Wire Into Seat Cover
      G08319156Courtesy of SUBARU OF AMERICA, INC.
    4. Mark the wire on the seat cover side according to the markings on the seat pad.
      Fig 6: Marking Wire On Seat Cover Side
      G11582798Courtesy of SUBARU OF AMERICA, INC.
    5. Perform steps  1 -  4 to all sections to which the hog rings are attached.
    6. Make sure that all hog rings (A) are attached securely.
    Fig 7: Front Seat Hog Rings Location
    G10270952Courtesy of SUBARU OF AMERICA, INC.
  4. Assemble remaining parts in the reverse order of disassemble.
    NOTE:
    • When installing the seat belt inner - front, follow the procedures described in the seat belt information. <Ref. to INSTALLATION , Front Seat Belt.>
    • Install the backrest assembly and seat cushion assembly in the following procedure.
    1. Temporarily tighten the four reclining hinge bolts.
    2. Place the backrest in the most upright position.
    3. Tighten the reclining hinge bolts in order from (1) to (4) two or three times, until they reach the specified torque.
    Fig 8: Reclining Hinge Bolts Tightening Sequence
    G11582800Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque: 

    Refer to "COMPONENT" of "General Description". <Ref. to  FRONT SEAT  , COMPONENT, General Description.> 

  5. If any wrinkles are found after the assembly of the seat cover, finish the seat cover with iron.
    1. Place the wet towel on wrinkles.
      Fig 9: Placing Wet Towel On Wrinkles
      G08319160Courtesy of SUBARU OF AMERICA, INC.
    2. Touch up with warm iron.
    CAUTION: Keep moving the iron, otherwise the seat cover surface can be damaged.
RENDER: 1.0x

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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.