How to change brake fluid:

Why conducting a brake fluid replacement is so important – and how to change brake fluid on your own!

Hydraulic brake fluid must withstand heat that can exceed 650 degrees and still remain a fluid during the coldest winters. Moisture and fluid degradation can lower the boiling point of brake fluid by 20% in just two years, resulting in brake fade.

Brake fluid is hygroscopic (it attracts moisture) so don’t open your master cylinder reservoir if it's clear and you can see the fluid level. Never add fluid from an already opened container. Proper evacuation of your old brake fluid and proper bleeding is very important. Consult your repair manual and review the steps provided in this article.

Advance Auto Parts has a complete selection of brake fluid and brake system tools to help you complete your brake fluid change quickly and correctly.
Why you should do a brake fluid change with every brake job:
Brake fluid wears out just like brake pads and shoes. Air slowly seeps into brake fluid through the brake hoses and causes the pedal to feel spongy, reducing braking power.

Brake fluid also naturally absorbs moisture. Water in brake fluid will damage brake parts and could eventually cause total brake failure.

Prevent costly damage to both you and your vehicle. Doing a brake fluid replacement will restore your vehicle's stopping ability and prevent rust and corrosion to important brake components.
Brake fluid replacement – here’'s what you'll need:

Do-it-yourself difficulty guide for brake fluid replacement:

Estimated time required - 1-2 hours

How to complete a brake fluid change on your own – and save:

You may need to jack up the car for access to the bleeder screws. Warning! Brake fluid may damage paint. Immediately flush area with water if spilled.

  1. Locate the brake bleeder screws on each wheel caliper or brake cylinder. Stubborn bleeder screws can be broken loose by trying to tighten them slightly first. Don’t loosen the bleeder valve yet.
  2. Locate the master cylinder. Remove the reservoir cap. Remove the old brake fluid with a vacuum pump. Refill with new brake fluid.
  3. Attach the brake bleeder to the caliper bleeder screw farthest away from the master cylinder. Loosen the bleeder screw. Bleed until no air bubbles are visible. Tighten the bleeder screw.
  4. Refresh the brake fluid reservoir with the new brake fluid. Repeat step 3, working closer to the master cylinder as you go. Refresh the reservoir each time. NEVER reuse brake fluid.
  5. Top off the brake fluid reservoir. You have now replaced your brake fluid. Replace the reservoir cap. Test the brake pedal before driving the vehicle. Properly dispose of the old brake fluid.


Time for a brake fluid change? Count on Advance Auto Parts for the quality auto parts and supplies you need to do the job correctly.