Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2008 Subaru Outback Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Operating Cylinder: Assembly

WARNING: This page is about a different variant/trim than selected.

NOTE: During assembly, apply hydraulic oil to all parts.

Recommended brake fluid

FMVSS No. 116, fresh DOT3 or 4 brake fluid

Install the piston spring to the piston.
NOTE:
- Only 5MT model can be assembled.
- The illustration below is for a Non-turbo model.
  
  Fig 1: Identifying Piston And Piston Spring
  Courtesy of SUBARU OF AMERICA, INC.
Insert piston to the operating cylinder.
Install push rod to the boot.
Install boot and push rod to the operating cylinder.
NOTE: The illustration below is for a Non-turbo model.

Factory Service Tools

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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.