When Should You Change Your Brake Fluid? (And What Happens If You Don’t)

When Should You Change Your Brake Fluid? (And What Happens If You Don’t?)

As an important part of your car’s brake system, it’s important to keep an eye on your vehicle's brake fluid and change it periodically. The process of checking and changing brake fluid is simple, however, the consequences of neglecting this task can be severe. It’s important to stay on top of the maintenance of your brake fluid to keep your car in safe operating condition. Here’s what you need to know about when, why, and how to change your brake fluid.

How Long Does Brake Fluid Last?

Generally, brake fluid needs to be changed every two years. If your car uses synthetic brake fluid, you may be able to extend this period to three years. You can find out how often your car needs to have its brake fluid changed by referring to your car’s owner’s manual. Also, a certified mechanic will be able to provide advice on what kind of brake fluid your car needs and how often you should be changing it.

Signs it's Time to Change Your Brake Fluid

Even if it has been two or three years since you last changed your car's brake fluid, there may be other occasions when it is advisable. Some signs that indicate it may be time to change your brake fluid include:

• The brake pedal feels spongy or hard to press.
• There is a noticeable decrease in the performance of the brakes.
• The brakes squeal, grind or make other odd noises when engaged.

What Happens if You Don’t Change Your Brake Fluid?

If you don't stay on top of the maintenance of your brake fluid, it can cause significant damage to your brake system over time. As the brake fluid gets old, it can become contaminated by moisture and dirt that gets trapped inside. This can cause corrosion and lead to piston seal leaks or cracking of the master cylinder. In some cases, it can even lead to a complete failure of the brake system, meaning it can't be used to stop the car. Driving with a failing brake system can result in serious injury or even death in the event of an accident. Therefore, it’s important to ensure your brake fluid is changed on a regular basis.