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A Quick Guide on When and Why to Do a Brake Fluid Flush

Brake Fluid Flush

Brake fluid is an essential component of your vehicle’s braking system. It helps to transfer the force from the brake pedal to the brake calipers, enabling your car to slow down and stop when needed. Over time, brake fluid can come contaminated with moisture, air, and other corrosive elements, compromising its performance and impairing braking. This is where a brake fluid flush comes into the picture. 

This guide will review the importance of a brake fluid flush when you should do it, and why it’s necessary to maintain your vehicle’s safety and performance.

Why is a Brake Fluid Flush Important?

There are several reasons why a brake fluid flush is essential for maintaining the safety and performance of your vehicle. These include:

1. Removing Moisture

Brake fluid is hygroscopic, which absorbs moisture from the environment. Over time, this moisture can cause the brake fluid to break down, reducing its effectiveness and impairing braking performance. A brake repair, like the flush helps to remove this moisture, ensuring your vehicle’s braking system functions optimally.

2. Preventing Corrosion

The moisture in the brake fluid can also cause corrosion of your vehicle’s brake components, such as the brake calipers, pistons, and lines. This corrosion can lead to leaks, reduced braking performance, and even brake failure. By flushing the brake fluid, you can help to prevent corrosion and prolong the life of your vehicle’s braking system.

3. Removing Contaminants

In addition to moisture, brake fluid can become contaminated with dirt, dust, and other debris over time. These contaminants can cause wear and tear on your vehicle’s brake components, reducing lifespan and performance. A brake fluid flush helps to remove these contaminants, ensuring that your braking system remains in good working order.

4. Maintaining Brake Fluid Viscosity

Brake fluid must maintain a specific consistency to function correctly. Over time, heat and moisture can cause the brake fluid to lose viscosity, impairing its ability to transfer the force from the brake pedal to the brake calipers. A brake fluid flush helps to maintain the proper viscosity of the brake fluid, ensuring that your vehicle’s braking system performs as it should.

When Should You Do a Brake Fluid Flush?

The recommended interval for a brake fluid flush varies depending on your vehicle’s make, model, and the type of brake fluid used. Most manufacturers recommend flushing the brake fluid every two to three years or 24,000 to 36,000 miles, whichever comes first. However, some high-performance vehicles and those with advanced braking systems may require more frequent brake fluid flushes.

It’s essential to consult your vehicle’s owner’s manual for the manufacturer’s specific recommendations on when to perform a brake repair and inspection. 

In addition to following the recommended schedule, some signs may indicate it’s time for a brake fluid flush, including:

  1. Dark or Discolored Brake Fluid: Brake fluid can become dark or discolored due to moisture and contaminants. If your brake fluid looks dark or dirty, it’s a sign that it’s time for a flush.
  2. Reduced Braking Performance: If you experience a soft or spongy brake pedal, longer stopping distances, or decreased braking performance, it may be due to contaminated brake fluid. A brake fluid flush can help to restore your vehicle’s braking performance.
  3. ABS Warning Light: Some vehicles are equipped with an Anti-lock Braking System (ABS) warning light that may illuminate if there is a problem with the brake fluid. If this light comes on, it’s vital to inspect your braking system and perform a brake fluid flush if necessary.
  4. Brake System Service: If you have other brake system components serviced, such as replacing brake pads or rotors, having the brake fluid flushed simultaneously is a good idea. This ensures that your entire braking system is in optimal condition.


A brake fluid flush is a crucial maintenance procedure that helps ensure the safety and optimal performance of your vehicle’s braking system. Ignoring the need for a brake fluid flush can decrease braking performance, longer stopping distances, and even brake failure, putting you and others on the road at risk.

Automed Euro is the ultimate destination for premium European auto repair services in West Los Angeles. With skilled and experienced technicians, we specialize in providing exceptional care and maintenance for luxury European vehicles, ensuring that we perform at our best. If you are a European car owner needing top-quality brake repair in Los Angeles, do not hesitate to contact us.

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