How to Replace Car Brake Fluid?

[Isla]

To replace car brake fluid, simply locate and open the brake fluid reservoir, use a syringe to extract the old brake fluid, and then add new brake fluid. Below is relevant information about brake fluid: Function of Brake Fluid: Brake fluid has a low freezing point and excellent fluidity, while its boiling point is extremely high. It does not produce vapor lock under high temperatures, thus preventing corrosion of metal and rubber components. Replacement Interval: The replacement interval for brake fluid can be adjusted based on factors such as vehicle usage, mileage, driving conditions, and brake responsiveness, allowing for earlier or later replacement as needed.

[AnastasiaMarie]

I change my brake fluid myself every time, and this job requires parking on a level surface with the handbrake engaged. First, check the color of the old fluid in the brake fluid reservoir—if it's black or cloudy, it's time for a change. Prepare new brake fluid (matching the type specified for your vehicle), a wrench, a fluid extractor, and cleaning cloths. Start at the brake caliper near the wheel, loosen the bleeder bolt, and use the extractor to remove the old fluid until the reservoir is empty. Then slowly add new fluid to the reservoir, making sure no air enters the system. Next, bleed the brakes one by one to ensure the pedal feels firm. Finally, test the brakes a few times, and if everything feels normal, seal the reservoir cap. I recommend changing the brake fluid every two years or 30,000 kilometers—regular maintenance saves money and ensures safety. If you're unsure about the tools, ask a professional mechanic for help to avoid any issues that could affect driving. After doing it a few times, you'll get the hang of it and even learn some mechanical knowledge.

[McDerek]

As someone who frequently performs brake maintenance, I emphasize that the steps for replacing brake fluid must not be taken lightly. First, ensure the car is turned off and parked on a level surface for safety. Prepare new brake fluid, a wrench, an oil collection container, and a bleeding tool. Open the hood and locate the brake fluid reservoir. Use the wrench to loosen the cap. Use a suction tube to remove the old fluid—if the fluid level is low or appears cloudy, it indicates aging. Then, follow the wheel sequence: right rear, left rear, right front, left front. Loosen the bleeder bolts on each wheel cylinder one by one to drain the old fluid, while simultaneously adding new fluid to the reservoir to maintain the proper level. The key step is the bleeding process—use an auxiliary tool to remove air bubbles and test the brake pedal for smooth operation. After completion, check for leaks and clean the tools. This process prevents airlock from affecting braking distance. It’s recommended to check the fluid quality annually, and opting for a professional repair shop can save hassle—don’t let minor issues escalate into major problems.

[OValerie]

I think changing brake fluid is actually quite simple, even beginners can give it a try. Park on level ground and turn off the engine, then open the hood to locate the brake fluid reservoir. Unscrew the reservoir cap and use a hose to extract the old fluid into a container. Fill it up with new brake fluid, but don't overfill to avoid spillage. Then proceed wheel by wheel: loosen the bleed screw slightly, let the fluid drain completely, and then tighten it. Ensure there are no air bubbles in the system by gently pumping the brakes a few times to check for smooth rebound. Pay attention to the brake feel while driving; if it becomes soft or makes unusual noises, it might be time to change the fluid. DIY saves money, but safety comes first—don't push yourself too hard.