How to Check Car Brake Fluid?
2 Answers
Methods for checking the brake fluid level: 1. Inspect the brake fluid level in the reservoir. It should be between the maximum and minimum lines on the tank. 2. Ensure there are no leaks around the reservoir. 3. If the level is significantly below the minimum mark, check the braking system for leaks. 4. Release the parking brake pedal and observe whether the brake warning light turns off. If not, inspect the braking system for leaks. Methods for replacing brake fluid: 1. Connect a vinyl tube to the drain valve. 2. Press the brake pedal, loosen the drain plug, and gradually drain the brake fluid. 3. Turn off the ignition switch and disconnect the negative battery terminal. 4. Ensure there are no foreign objects in the tank and refill with new brake fluid. 5. Place your foot on the brake pedal, loosen the bleeder valve, slowly press the pedal until it reaches the bottom, tighten the bleeder valve, and release the brake pedal. Repeat this step several times, then pause and add new brake fluid to the master cylinder. Continue the process until new brake fluid flows out. Perform the bleeding operation for each tire.
I've been driving for over twenty years, and checking brake fluid is routine for me. Before opening the engine compartment, make sure the car is parked steadily and the engine is cool to avoid burns. Locate that small round reservoir labeled 'Brake Fluid' or with an icon, usually on the driver's side. Wipe off dust and oil stains from the top of the reservoir with a clean cloth to prevent dirt from falling in. Then open the cap and observe the fluid level inside: it should sit steadily between the MIN and MAX marks. If the level is low, add a bit of the same type of brake fluid, such as DOT3 or DOT4, and don't use other liquids randomly. Checking the fluid color is also crucial—fresh fluid is clear like light honey, while dark yellow or coffee-colored fluid indicates high water or impurity content, which can make braking sluggish and requires immediate replacement. I recommend checking the fluid level quarterly and performing a complete fluid change every two years or 20,000 kilometers. If the fluid level drops rapidly, it might indicate worn brake pads or a leak, requiring repair. Regular maintenance is a small cost that can save lives.
