Brake fluid is a low-viscosity liquid used in hydraulic brake systems to transmit force from the master cylinder to the wheel cylinders or calipers. Low brake fluid can seriously affect the braking system's overall function.
Why driving with low brake fluid is dangerous:
- Increased Stopping Distances: One of the main issues with low brake fluid is that it can increase your stopping distance. This means that when you press the brake pedal, it will take longer for the car to come to a stop, which can be highly dangerous in an emergency situation.
- Brake Pedal Feel: You might notice a spongy or soft brake pedal when your brake fluid is low. This is because the air bubbles in the fluid can cause a reduction in the hydraulic pressure transmitted from the master cylinder to the wheel cylinders or calipers.
- Brake Failure: In extreme cases, if the brake fluid level drops too low, the system may develop air pockets or bubbles. These air pockets can create a condition known as vapor lock, where the brake fluid boils and forms gas bubbles. This can lead to complete brake failure, meaning the brakes won't work at all, resulting in a highly dangerous situation.
Additionally, low brake fluid can also cause damage to the brake system's components, including the brake master cylinder, brake lines, and brake calipers, leading to costly repairs in the future.
If you suspect that your brake fluid level is low, it is important to have it inspected and refilled by a qualified mechanic as soon as possible.
