To change brake fluid, bleed the lines, and then refill the reservoir with fresh fluid. You need a flexible tube, a clear container, a wrench and someone to step on the brake pedal. Consult the repair manual for your vehicle to ensure the lines are safe to bleed.Continue Reading
Fill the reservoir, and replace the cap.
Fill 1 inch of a clear container with brake fluid. Place one end of a flexible tube inside of the container.
Search for the bleed valve bolt behind the brake cylinder.
Remove the rubber cap attached to the bleed valve. Attach the other end of the tube to the valve.
Use a wrench to loosen the valve slightly without releasing any fluid.
Press and release the brake pedal a few times. Hold the pedal down slightly.
With the brake pedal held down, loosen the valve more to allow fluid to flow through the tube.
Push the brake pedal down slowly. When the pedal is held down two-thirds of the way, tighten the valve. Release the pedal. Repeat the process until air bubbles stop exiting the tube.
Follow the same process to bleed the three remaining lines, and check the fluid level in the reservoir throughout.
Fill the reservoir to the full line.