Front Disc Brake Assembly: Disassembly

WARNING: This page is about a different car, the 2012 Subaru Outback and 2012 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Be careful not to allow foreign matter to enter the brake hose connector.

Remove mud and foreign matter from the caliper body.
Remove the piston.
1. Place a wooden block in the caliper body as shown in the figure to prevent the piston from jumping out and being damaged.
2. Using an air gun, gradually apply compressed air via the brake hose installation hole to push the piston out.
  
  Fig 1: Applying Compressed Air Brake Hose Installation Hole Push Piston Out
  Courtesy of SUBARU OF AMERICA, INC.
3. Remove the piston boot from caliper body cylinder.
  
  Fig 2: Removing Piston Boot From Caliper Body Cylinder
  Courtesy of SUBARU OF AMERICA, INC.
4. Remove the piston seal from caliper body cylinder.
  CAUTION: Do not damage the cylinder and piston seal groove.
  
  Fig 3: Removing Piston Seal From Caliper Body Cylinder
  Courtesy of SUBARU OF AMERICA, INC.
5. Remove the guide pin, lock pin, bushing pin, and pin boot from the support.
  
  Fig 4: Removing Guide Pin, Lock Pin, Bushing Pin And Pin Boot From Support
  Courtesy of SUBARU OF AMERICA, INC.