How to Bleed Brakes?

[GrantLee]

The method for bleeding car brakes is as follows: 1. Remove the dust cap from the bleeder valve on the wheel cylinder, prepare a transparent hose, connect one end to the bleeder valve and the other end to a plastic container. 2. Have one person press the brake pedal several times inside the car, then firmly press and hold the brake pedal. Another person outside the car should loosen the bleeder screw on the wheel cylinder, at which point air will be expelled along with the brake fluid. 3. Repeat the above steps until the expelled fluid is free of air bubbles, then top up the brake fluid and tighten the bleeder valve. Precautions for brake bleeding are as follows: 1. The typical wheel sequence for bleeding is right rear wheel — left rear wheel — right front wheel — left front wheel. 2. The expelled brake fluid should not be reused as it may have absorbed moisture from prolonged exposure to air, which could affect braking performance.