Everything You Need to Know About Brake Fluid Changes

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Your vehicle’s braking system is one of its most important safety features, and it’s essential to keep it in top working order. One of the critical components of your braking system is your brake fluid, which provides the hydraulic pressure that helps your brakes stop your vehicle. However, over time, your brake fluid can become contaminated or degrade, which can lead to reduced braking performance or even brake failure. That’s why it’s essential to have your brake fluid changed regularly. In this blog post, we’ll take a look at everything you need to know about brake fluid change, including why you need them, how often to do them, and what to expect.

Why Do You Need Brake Fluid Change?

Your brake fluid plays a crucial role in your vehicle’s braking system. It’s responsible for transferring hydraulic pressure from your brake pedal to your brake calipers, which clamp down on your brake rotors to slow or stop your vehicle. However, your brake fluid can become contaminated with moisture or debris over time, which can lead to a range of problems. Here are a few reasons why you need to have your brake fluid changed regularly:

1.    Water Absorption:

Brake fluid is hygroscopic, which means it naturally absorbs moisture from the air. Over time, this moisture can accumulate in your brake lines and calipers, which can lead to corrosion or even brake failure.

2.    Boiling Point:

Brake fluid also has a high boiling point, which helps it resist vaporization under normal operating conditions. However, as your brake fluid degrades or becomes contaminated, its boiling point can drop, which can lead to brake fade or failure under heavy braking.

3.    Contamination Brake Fluid Change:

As your brake fluid circulates through your brake system, it can pick up debris or contaminants that can affect its performance. For example, worn brake pads or rotors can shed tiny particles that can contaminate your brake fluid and reduce its effectiveness.

How Often Should You Change Your Brake Fluid?

So how often should you change your brake fluid? The answer depends on your vehicle and driving habits, but most manufacturers recommend having your brake fluid changed every two to three years. However, if you frequently drive in harsh conditions or use your vehicle for heavy towing or hauling, you may need to have your brake fluid changed more often.

Here are a few signs that you may need to have your brake fluid changed sooner:

  1. A Change in Color: Fresh brake fluid is typically clear or slightly amber in color. If your brake fluid has turned dark or murky, it may be time for a change.
  2. Soft or Spongy Brake Pedal: If your brake pedal feels soft or spongy when you press it, it could be a sign that your brake fluid is contaminated or needs to be changed.
  3. Reduced Braking Performance: If you notice that your vehicle takes longer to stop than usual or that your brakes feel less responsive, it could be a sign of degraded brake fluid.
  4. Warning Lights: Many newer vehicles have brake fluid warning lights that will illuminate if the system detects a problem with your brake fluid. If you see a warning light, it’s essential to have your vehicle inspected as soon as possible.

What to Expect During a Brake Fluid Change So what can you expect during a brake fluid change?

Here’s a step-by-step guide:

  1. Inspection: Before your mechanic starts the brake fluid change, they’ll inspect your entire braking system to ensure that everything is in good working order.
  2. Fluid Extraction: Your mechanic will use a specialized tool to extract your old brake fluid from your brake lines and calipers. They’ll also inspect your brake lines for any please complete it signs of corrosion or damage.
  1. Fluid Refill: Once your old brake fluid is removed, your mechanic will refill your brake system with fresh, clean brake fluid. They’ll also bleed your brake lines to ensure that there’s no air in the system, which can affect your braking performance.
  2. Testing: After your brake fluid is changed, your mechanic will test your braking system to ensure that it’s working correctly. They may also take your vehicle for a test drive to check for any issues.
  3. Maintenance: Your mechanic may also recommend additional maintenance tasks, such as inspecting your brake pads or rotors, to ensure that your entire braking system is in top working order.


Your brake fluid is a critical component of your vehicle’s braking system, and it’s essential to keep it in good condition to ensure your safety on the road. By having your brake fluid changed regularly, you can help prevent brake failure and ensure that your brakes work as they should. If you’re not sure when you last had your brake fluid changed, it’s a good idea to have it inspected by a qualified mechanic to determine if it needs to be changed. As always, be sure to follow your manufacturer’s recommended maintenance schedule and take care of your vehicle to keep it running smoothly and safely for years to come.

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