Front Disc Brake Caliper

WARNING: This page is about a different car, the 2007 Chrysler PT Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Before disassembling the brake caliper, remove it from the vehicle. See REMOVAL .

NOTE: Before disassembling the brake caliper, clean and inspect it. See CLEANING . . See INSPECTION .

WARNING: Under no condition should high pressure air ever be used to remove a piston from a caliper bore. Personal injury could result from such a practice.

CAUTION: Do not use excessive force when clamping caliper in vise. Excessive vise pressure will cause bore distortion.

Mount the caliper in a vise equipped with protective jaws.

Fig 1: Removing Piston Using Air Pressure
Courtesy of CHRYSLER LLC

1 - WOOD BLOCK

WARNING: Do not place face or hands near caliper and piston if using compressed air pressure to remove piston. Do not use high pressure.
Place a wooden block (1) in the caliper as shown.
If necessary, apply low pressure compressed air to the caliper fluid inlet in short spurts to force the piston out.
Remove the piston from the caliper.
Remove the dust boot from the piston and discard it.

Fig 2: Removing Piston Seal
Courtesy of CHRYSLER LLC

1 - TRIM STICK

2 - SEAL

CAUTION: Do not use a screw driver or other metal tool for seal removal. Using such tools can scratch the bore or leave burrs on the seal groove edges.
Using a soft tool such as a plastic trim stick (1), work the piston seal (2) out of its groove in caliper piston bore. Discard the used seal.
Clean the piston bore and drilled passage ways with alcohol or a suitable solvent. Wipe it dry using only a lint-free cloth.
Inspect both the piston and bore for scoring or pitting. Bores that show light scratches or corrosion can usually be cleared of the light scratches or corrosion using crocus cloth.