How To Change The Brake Fluid In A Subaru Impreza?

In this article, you will learn step-by-step instructions on how to change the brake fluid in your Subaru Impreza. We will discuss why it is important to regularly change your brake fluid and the tools you will need for the job. You will also learn the proper technique to flush the old brake fluid and replace it with new fluid. By the end of this article, you will have the knowledge and confidence to change the brake fluid in your Subaru Impreza. Changing the brake fluid in your Subaru Impreza is an essential maintenance task that should be performed regularly. Brake fluid plays a crucial role in the braking system by transferring the force from the brake pedal to the brakes themselves. Over time, brake fluid can become contaminated or less effective, leading to a decrease in braking performance and potentially compromising your safety on the road. By following the steps outlined below, you can easily change the brake fluid in your Subaru Impreza and ensure smooth braking performance.

Gather the necessary materials

Before you begin the brake fluid changing process, gather all the necessary materials. These include brake fluid, a brake bleeding kit, a wrench, a container for the old fluid, and shop rags. It is important to have all the required tools and materials on hand to avoid any interruptions during the process.

Prepare the vehicle

Park your Subaru Impreza on level ground and secure it by engaging the parking brake. Make sure the vehicle is stable and immobile before proceeding. Open the hood to gain access to the engine compartment and locate the brake fluid reservoir. The reservoir is usually a small, translucent container located near the firewall on the driver’s side of the vehicle.

How To Change The Brake Fluid In A Subaru Impreza?

Remove the old brake fluid

To remove the old brake fluid, locate the brake bleeder valve on each wheel. The bleeder valve is a small, metal valve located on the brake caliper or wheel cylinder. Attach the brake bleeding kit to the bleeder valve, ensuring a secure connection. Open the bleeder valve using a wrench, allowing the old fluid to flow into the container. As the fluid flows out, pump the brake pedal several times to help push out any trapped air or contaminants. Repeat this process until the fluid coming out is clear and free from any debris.

Refill the brake fluid

After removing the old brake fluid, it is important to clean the brake fluid reservoir thoroughly. Use a clean shop rag to wipe away any dirt or debris from the reservoir. Check the recommended brake fluid type for your Subaru Impreza, as specified in the owner’s manual or on the reservoir cap. Pour the new brake fluid into the reservoir, ensuring that it reaches the recommended fill level.

How To Change The Brake Fluid In A Subaru Impreza?

Bleed the brakes

To bleed the brake system, start with the wheel furthest from the brake fluid reservoir. Attach the brake bleeding kit to the bleeder valve and have an assistant help you pump the brake pedal several times. As your assistant pumps the brake pedal, open the bleeder valve and allow the fluid to flow out. Repeat this process for each wheel, working your way from the furthest wheel to the closest wheel to the reservoir. This ensures that any air or contaminants in the brake lines are expelled.

Check for leaks and proper fluid level

After bleeding the brakes, inspect each wheel for any signs of brake fluid leaks. Check the brake lines, calipers, and wheel cylinders for any visible leaks or seepage. Additionally, ensure that the brake fluid reservoir is at the correct fill level. It should neither be overfilled nor underfilled. Maintaining the proper fluid level is crucial for optimal braking performance.

How To Change The Brake Fluid In A Subaru Impreza?

Test the brakes

Once you have completed the brake fluid changing process, start the engine and press the brake pedal to test the functionality. The pedal should feel firm and responsive, with no sponginess or unusual noises. Test the brakes by gradually applying pressure to ensure they engage smoothly and effectively. If you experience any issues, such as a soft or spongy pedal, it may be necessary to repeat the bleeding process.

Clean up and dispose of old fluid

After changing the brake fluid, properly seal and dispose of the old brake fluid. Brake fluid is considered hazardous waste and should not be poured down the drain. Consult your local regulations for proper disposal methods or take it to a designated waste disposal facility. Clean up any spills or drips with shop rags and ensure a clean work area.

How To Change The Brake Fluid In A Subaru Impreza?

Reassemble and secure the vehicle

Finally, close the brake fluid reservoir cap tightly to prevent any contamination or leaks. Secure any other opened components, such as the hood, that were accessed during the process. Lower the vehicle if it was raised and remove any supports such as jack stands. Ensure the Subaru Impreza is ready for normal operation.


Changing the brake fluid in your Subaru Impreza is a crucial maintenance task that helps ensure the smooth and safe operation of your vehicle’s braking system. By following the outlined steps carefully and performing this task regularly, you can prolong the lifespan of your brakes and maintain optimal braking performance. Remember to always refer to your vehicle’s owner’s manual for specific instructions and recommendations. With proper maintenance, you can enjoy a safe and reliable Subaru Impreza for years to come.

How To Change The Brake Fluid In A Subaru Impreza?

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