
To check the brake fluid level, follow these steps: 1. Open the engine hood; 2. Locate the brake fluid reservoir and wipe it clean with a tissue; 3. Observe whether the brake fluid level is within the standard range between the upper and lower marks; 4. If the level is below the lower mark, you need to add brake fluid. The brake fluid must be of the same specification as the original one, which is usually marked on the brake fluid reservoir. During vehicle braking, the movement of the brake caliper and master cylinder pistons, the wear of the brake pads, and the normal consumption of brake fluid will cause changes or reduction in the fluid level in the brake fluid reservoir. The brake fluid reservoir stores these changes in fluid level. In case of a brake system leak, the brake fluid in the reservoir can be used as a temporary emergency measure.

As a car enthusiast, I always check the brake fluid during maintenance. After parking and turning off the engine, wait about ten minutes for it to cool down before starting—otherwise, you might burn your hands on the hot engine. Pop the hood, and you'll see a plastic reservoir, usually labeled "brake fluid" or marked with a brake symbol, often semi-transparent. The fluid level should be between the "min" and "max" lines marked on the side of the reservoir—check carefully. If it's below "min," there might be a leak or air in the system. Brake fluid absorbs moisture over time, reducing performance and potentially causing soft brakes or failure. I recommend checking every three months to ensure it's within the safe range. When topping up, always use the same type—never mix different brands. If the level keeps dropping, visit a professional shop instead of DIY fixes to avoid safety risks. This habit can prevent major accidents.

From a repair perspective, checking brake fluid is crucial. Park the car and let it cool for about ten minutes. Open the hood and locate the brake fluid reservoir—its position varies by vehicle but is often found at the rear of the engine, a round transparent container marked with min and max lines. The fluid level should be between those two lines. I always recommend topping up with standard brake fluid when the level nears min, not waiting until it's too low. Remember not to mix brands, as different fluids have varying viscosities that can conflict. A significantly low level may indicate a system leak, such as a ruptured brake hose or a leaking wheel cylinder, which can be dangerous if not repaired promptly. Brake fluid absorbs moisture, lowering its boiling point, making it prone to overheating and failure during downhill driving or frequent braking. It's best to check every six months; experienced mechanics use a test pen to measure moisture content. For safety, always tighten the cap after adding fluid to prevent contamination.

When I first started driving, I was especially afraid of checking the brake fluid, but it's actually quite simple. Park the car and turn off the engine, wait until it cools down before opening the hood, then look for the plastic container labeled 'brake fluid'. Check the markings on the container; the fluid should be between the min and max lines. If it's below the min line, add some new fluid, but never do this when the car is hot to avoid burning your hands. The quality of brake fluid affects braking power. My driving instructor told me that old fluid absorbs moisture, reducing effectiveness and becoming dangerous. Make it a habit to check once a month, and you'll be much safer.


