2022 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Transmission Case: Installation

  1. Clean the mating surface of transmission case and converter case.
  2. Install the control device system. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Control Device>INSTALLATION .
  3. Install new O-rings to the application pressure pipe, lubrication pipe, and release pressure pipe.
    CAUTION:
    • Before installing O-rings, apply sufficient amount of CVTF to avoid damage and deformation.
    • Use SUBARU genuine CVTF.
    • Be careful not to incorrectly install or fail to install O-rings and other such parts.
  4. Make sure the application pressure pipe, lubrication pipe, release pressure pipe and support rod are in vertical position.
    G13200231Courtesy of SUBARU OF AMERICA, INC.
  5. Apply liquid gasket seamlessly to the mating surface of transmission case, and temporarily install it.

    Liquid gasket: 

    THREE BOND 1215B or equivalent

    G12452462Courtesy of SUBARU OF AMERICA, INC.
  6. Tighten the transmission case mounting bolts.
    CAUTION: If the transmission case gets in contact with the application pressure pipe, lubrication pipe, release pressure pipe and support rod, do not install the transmission case forcibly.
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.