Brake Bleeding: Service and Repair

BLEEDING

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.

NOTICE: Do not let brake fluid remain on a painted surface. Wash it off immediately.





1. FILL BRAKE RESERVOIR WITH BRAKE FLUID
Check the fluid level in the reservoir after bleeding each wheel.
Add fluid, if necessary.
Fluid: SAE J1703 or FMVSS No. 116 DOT3
2. BLEED MASTER CYLINDER

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





a. Disconnect the brake lines from the master cylinder.
SST 09023-00100
b. Slowly depress the brake pedal and hold it.





c. Block off the outlet plugs with your fingers, and release the brake pedal.
d. Repeat (b) and (c) 3 or 4 times.





3. CONNECT VINYL TUBE TO BRAKE CALIPER BLEEDER PLUG
Insert other end of the tube in a half-full container of brake fluid.

NOTICE: Bleed air of the rear brake first. If front brake is bled first, rear brake air cannot be bled.

4. BLEED BRAKE LINE
a. Slowly depress the brake pedal several times.
b. While an assistant depresses the pedal, loosen the bleeder plug until fluid starts to run out. Then tighten the bleeder plug.
c. Repeat this procedure until there are no more air bubbles in the fluid.
Bleeder plug tightening torque: 8.3 Nm (85 kgf-cm, 74 inch lbs.)
5. REPEAT PROCEDURE FOR EACH WHEEL
6. w/ VSC: BLEED PRECHARGE PUMP

CAUTION: When repairing the brake master cylinder or precharge pump, bleed the precharge pump of the air.





a. Install the SST to the reservoir.
SST 09992-00242, 09992-00350
b. Using SST, apply pressure to the reservoir.
Pressure: 98.1 kPa (1.0 kgf/cm2, 14.2 psi)
c. Disconnect the precharge pump connector.





d. Connect ML+ (2) terminal to the battery positive (+) and ML- (1) terminal to the battery negative (-), and activate the precharge pump about 20 seconds.
e. Remove the SST from the reservoir.
f. Connect the vinyl tube to the front brake caliper RH, and loosen the bleeder plug.
g. Activate the precharge pump again until there are no more air bubbles in the fluid.
Bleeder plug tightening torque: 8.3 Nm (85 kgf-cm, 74 inch lbs.)
h. Connect the precharge pump connector.
7. CHECK FLUID LEVEL IN RESERVOIR
Check the fluid level and add fluid if necessary.
Fluid: SAE J1703 or FMVSS No.116 DOT3