Front Brake Caliper Replacement (J56)

Front Brake Caliper Replacement (J56)

Removal Procedure
Warning: Refer to Brake Fluid Irritant Warning (Brake Fluid Irritant Warning).


Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution (Vehicle Damage Warnings).

1. Inspect the fluid level in the brake master cylinder reservoir.
2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
4. Remove the brake pads. Refer to Front Disc Brake Pads Replacement (JE5, J55 (RWD)) (Front Disc Brake Pads Replacement (JE5, J55))Front Disc Brake Pads Replacement (JE5, J55 (AWD)) (Front Disc Brake Pads Replacement (JE5, J55))Front Disc Brake Pads Replacement (J56) (Front Disc Brake Pads Replacement (J56)).




5. Remove the brake hose fitting bolt (1).
Cap the brake caliper inlet port to prevent brake fluid loss and contamination.

Note: Do not reuse the brake hose fitting gaskets.

6. Remove and discard the brake hose fitting gaskets (2) from the brake hose (3).
Cap the brake hose fitting to prevent brake fluid loss and contamination.




7. Remove the brake caliper bolts (1).




8. Remove the brake caliper (1).

Installation Procedure




1. Install the brake caliper (1).

Note: If reusing the brake caliper to knuckle mounting bolts, the threads of the bolts and the threads of the knuckle mounting holes must be free of residue and debris prior to application of threadlocker in order to ensure proper adhesion and fastener retention.

2. Prepare the bolts and the threaded holes for assembly:

* Thoroughly clean the residue from the bolt threads by using denatured alcohol or equivalent and allow to dry.
* Thoroughly clean the residue from the threaded holes by using denatured alcohol or equivalent and allow to dry.

3. Apply threadlocker GM P/N 12345493 (Canadian P/N 10953488), or equivalent to 2/3 of the threaded length of the brake caliper bolts. Ensure there are no gaps in the threadlocker along the length of the filled area of the bolts.
Allow the threadlocker to cure approximately 10 minutes before installation.





Caution: Refer to Fastener Caution (Fastener Caution).

4. Install the brake caliper bolts (1) and tighten to 175 Nm (129 lb ft).




5. Assemble the brake hose fitting bolt (1) and the 2 new brake hose fitting gaskets (2) to the brake hose (3).
6. Install the brake hose assembly to the brake caliper and tighten the brake hose fitting bolt to 49 Nm (36 lb ft).
7. Install the brake pads. Refer to Front Disc Brake Pads Replacement (JE5, J55 (RWD)) (Front Disc Brake Pads Replacement (JE5, J55))Front Disc Brake Pads Replacement (JE5, J55 (AWD)) (Front Disc Brake Pads Replacement (JE5, J55))Front Disc Brake Pads Replacement (J56) (Front Disc Brake Pads Replacement (J56)).
8. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Manual) (Service and Repair)Hydraulic Brake System Bleeding (Pressure) (Service and Repair).