Changing your brake fluid is an essential maintenance task that helps keep your vehicle’s braking system in top condition. Over time, brake fluid can absorb moisture, leading to reduced braking performance and even system damage. With the right tools and guidance, you can replace your brake fluid safely and effectively at home. For the best results, always choose a high-quality product from a reputable brake fluid manufacturer.
Gather the necessary tools and supplies:
Before you start, gather all the tools and materials you’ll need: a new bottle of the correct brake fluid type, a wrench, a brake bleeder kit, a container for old fluid, and protective gloves. Ensure to verify the type of brake fluid specified in your vehicle’s manual, as using the wrong type could damage your braking system.
Lift the vehicle and locate brake components:
To access the brake components, jack up the vehicle securely and remove the wheels. This will give you clear access to the brake calipers and bleeder screws. Ensure your car is on a flat, stable surface and use jack stands for added safety. Locate the brake master cylinder under the hood and open the cap to allow airflow, which will help with fluid draining.
Attach the bleeder hose and loosen the bleeder screw:
Starting with the wheel farthest from the master cylinder (usually the rear passenger side), locate the bleeder screw on the brake caliper. Attach one end of the brake bleeder kit’s hose to the screw and place the other end in a container to catch the old fluid. Loosen the bleeder screw slightly to start the flow of brake fluid.
Pump the brake pedal to drain old fluid:
With the bleeder screw open, have a helper gently press the brake pedal multiple times. This will force the old fluid out through the bleeder hose. When the fluid coming out turns clear, indicating that new fluid has reached that brake line, tighten the bleeder screw and repeat the process for each wheel, moving closer to the master cylinder.
Refill the master cylinder with fresh brake fluid:
Once all the old fluid has been drained, refill the master cylinder with fresh brake fluid. Carefully pour it to avoid introducing air bubbles, as they can cause spongy brakes. Ensure to keep the fluid level within the “min” and “max” markers, and recap the master cylinder securely.
Test the brakes:
After completing the fluid change, test the brakes by pressing the pedal. It should feel firm. Take a short, cautious drive to confirm proper braking performance.