Brake Bleeding: Service and Repair

BRAKE SYSTEM (OTHER): BRAKE FLUID: BLEEDING; 2013 MY FR-S [03/2012 -]

NOTICE:
* Move the shift lever to P and apply the parking brake before bleeding the brakes (for automatic transmission).
* Apply the parking brake before bleeding the brakes (for manual transmission).
* Add brake fluid to keep the level between the MIN and MAX lines of the reservoir while bleeding the brakes.
* If brake fluid leaks onto any painted surface, immediately wash it off.
* Do not operate the brake actuator assembly while air is in the brake system or in the brake master cylinder sub-assembly. Doing so may cause air to enter the brake actuator assembly.
* If bleeding the brake actuator assembly is difficult due to air in the brake actuator assembly, replace it with a new one.

HINT
If any work is done on the brake system or if air in the brake lines is suspected, bleed the air from the system.

1. FILL RESERVOIR WITH BRAKE FLUID Service and Repair

2. BLEED BRAKE MASTER CYLINDER SUB-ASSEMBLY

HINT
If the master cylinder has been disassembled or if the reservoir becomes empty, bleed the air from the master cylinder.

(a) Using a union nut wrench 12 mm, separate the 2 brake tubes from the master cylinder.

(b) Slowly depress the brake pedal and hold it there (Step A).

(d) Repeat Steps A and B 3 or 4 times.

(e) Using a union nut wrench 12 mm, install the 2 brake tubes into the master cylinder.

Torque : 19 Nm (194 kgf-cm, 14 ft-lbf)

NOTICE:
* Do not bend or damage the brake lines.
* Do not allow brake lines to twist and interfere with other parts or vehicle body during tightening.
* Do not allow any foreign matter such as dirt or dust to enter the brake lines.
* Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench Service Precautions.

3. BLEED BRAKE LINE Service and Repair

4. INSPECT FOR BRAKE FLUID LEAK

5. INSPECT FLUID LEVEL Testing and Inspection