Brake Bleeding: Service and Repair
BRAKE FLUIDBLEEDING
HINT: If any work is performed on the brake system or if air in the brake lines is suspected, bleed air from the brake system.
NOTICE: Wash off brake fluid immediately if it comes in contact with any painted surface.
1. FILL RESERVOIR WITH BRAKE FLUID
Fluid: SAE J1703 or FMVSS No. 116 DOT3
2. BLEED AIR FROM BRAKE MASTER CYLINDER
HINT: If the master cylinder has been disassembled or if the reservoir becomes empty, bleed air from the master cylinder.
a) Using SST, disconnect the brake lines from the master cylinder.
SST 09023-00101
b) Slowly depress and hold the brake pedal.
c) Cover the outer holes with your fingers, and release the pedal.
d) Repeat the 2 previous steps 3 or 4 times.
e) Using SST, connect the brake lines to the master cylinder.
SST 09023-00101
Torque: 15 Nm (155 kgf-cm, 11 ft. lbs.) without SST
14 Nm (143 kgf-cm, 10 ft. lbs.) with SST
HINT: Use a torque wrench with a fulcrum length of 30 cm (11.81 inch).
3. BLEED AIR FROM BRAKE LINE
a) Remove the bleeder plug cap.
b) Connect a vinyl tube to one of the bleeder plugs.
c) Depress the pedal several times, and then loosen the bleeder plug with the pedal depressed.
d) When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.
e) Repeat the 2 previous steps until all the air in the fluid is gone.
f) Tighten the bleeder plug.
Torque: 8.3 Nm (85 kgf-cm, 73 inch lbs.)
g) Install the cap.
h) Bleed air from the brake line for each wheel by repeating the above procedures.
4. BLEED AIR FROM BRAKE ACTUATOR (w/VSC)
NOTICE:
^ After bleeding air from the brake system, the height and/or feel of the pedal may still be awkward. If so, use the intelligent tester to bleed air from the actuator.
^ Perform the air bleeding by following the steps displayed on the intelligent tester.
^ Make sure that the fluid in the reservoir does not become empty.
a) With the engine stopped, depress the pedal more than 20 times.
b) Connect the intelligent tester (with CAN VIM) to the DLC3, and then turn the ignition switch ON.
NOTICE: Do not start the engine.
c) Select AIR BLEEDING on the intelligent tester.
HINT: Please refer to the intelligent tester operator's manual for further details.
d) Bleed air from the brake line in Step 1: Increase on the intelligent tester display.
1) Remove the bleeder plug cap.
2) Connect a vinyl tube to either one of the bleeder plugs.
3) Depress the pedal several times, and then loosen the bleeder plug with the pedal depressed.
4) When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.
5) Repeat the 2 previous steps until all the air in the fluid is gone.
6) Tighten the bleeder plug.
Torque: 8.3 Nm (85 kgf-cm, 73 inch lbs.)
7) Install the cap.
8) Repeat the 7 previous steps to bleed air from the brake line for each wheel.
e) Bleed air from the suction line in Step 2: Inhalation on the intelligent tester display.
1) Remove the bleeder plug cap.
2) Connect a vinyl tube to the bleeder plug at the right front wheel or the right rear wheel and loosen the bleeder plug.
3) Using the intelligent tester, operate the actuator to bleed the air.
NOTICE: The operation stops automatically in 4 seconds. At this time, be sure to release the pedal.
4) View the intelligent tester display and check that the operation has stopped.
5) Repeat the 2 previous steps until all the air in the fluid is gone.
6) Tighten the bleeder plug.
Torque: 8.3 Nm (85 kgf-cm, 73 inch lbs.)
7) Install the cap.
8) Repeat the 7 previous steps to bleed air from the brake line for each wheel.
f) Bleed air from the pressure reduction line in Step 3: Decrease on the intelligent tester display.
1) Remove the bleeder plug cap.
2) Connect a vinyl tube to either one of the bleeder plugs.
3) Loosen the bleeder plug.
4) Using the intelligent tester, operate the actuator. At the same time, depress the pedal and maintain this position.
NOTICE:
^ The operation stops automatically in 4 seconds. When performing this procedure continuously, an interval of at least 20 seconds is required.
^ When the operation is completed, the pedal slightly goes down. This is normal and it occurs when the solenoid opens.
^ During this procedure, the pedal may seem heavy, but completely depress it so that the fluid comes out from the bleeder plug.
^ Be sure to keep depressing the pedal. Never depress and release the pedal repeatedly.
5) Tighten the bleeder plug, and then release the pedal.
Torque: 8.3 Nm (85 kgf-cm, 73 inch lbs.)
6) Repeat the 3 previous steps until all the air in the fluid is gone.
7) Install the cap.
8) Repeat the 7 previous steps to bleed air from the brake line for each wheel.
g) Bleed air from the brake line again in Step 4: Increase on the intelligent tester display.
1) Remove the bleeder plug cap.
2) Connect a vinyl tube to one of the bleeder plugs.
3) Depress the pedal several times, and then loosen the bleeder plug with the pedal depressed.
4) When fluid stops coming out, immediately tighten the bleeder plug. Then release the pedal.
5) Repeat the 2 previous steps until all the air in the fluid is gone.
6) Tighten the bleeder plug.
Torque: 8.3 Nm (85 kgf-cm, 73 inch lbs.)
7) Install the cap.
8) Repeat the 7 previous steps to bleed air from the brake line for each wheel.
5. CHECK BRAKE FLUID LEVEL IN RESERVOIR
a) Check the fluid level. If necessary, add fluid.
Fluid: SAE J1703 or FMVSS No. 116 DOT3