How To Remove Excess Brake Fluid From A Car: A Simple Guide!

Your car’s braking system’s unsung hero is brake fluid. It’s essential for properly stopping your car, but too much of it might lead to issues. Imagine overfilling a glass with water till it spills out and is a mess. Brake fluid is no different. Your car’s brakes may have problems if there is too much brake fluid in the system.

This article will discuss excess brake fluid, its causes, and how to get rid of it. When you or your mechanic overfills the brake fluid reservoir or if there are leaks in your brake lines, excess brake fluid may be produced. It can cause your brake pedal to feel spongy, lessen your stopping power, and eventually potentially harm your brake system. But don’t worry, we’ll teach you how to correct it and maintain excellent braking performance.

Understanding The Excess Brake Fluid In A Car

Before we delve into how to remove excess brake fluid from a car. Firstly, we’ll see what is excess brake fluid. A car with too much brake fluid is like someone with too much good stuff. As it assists in transferring the energy from your foot on the brake pedal to the actual brakes, brake fluid is crucial for stopping your automobile safely. However, having an excessive amount of brake fluid in your car’s braking system can lead to issues.

Imagine it as if you had overpoured pancake syrup it overflowed and became a sticky mess. Similar problems can occur when too much brake fluid overflows from the brake fluid reservoir. It frequently occurs when brake fluid is overfilled during maintenance or when the fluid expands as a result of heat. This additional fluid can cause a mushy brake pedal, decreased stopping power, and over time, brake system failure. For the safety and performance of your car to remain intact, extra brake fluid must be removed.

Why Does The Excess Brake Fluid Occurs In A Car?

Understanding why there is too much brake fluid in a car is the first step in solving the confounding issue. The following reasons are why extra brake fluid may be detected in your vehicle’s braking system:

1. Overfilling The Brake Fluid Reservoir:

Overzealous topping off of the brake fluid reservoir during maintenance is one frequent cause of excess brake fluid. Your car’s brake fluid is kept in the reservoir, which might overflow if too much is injected. It’s similar to filling a cup with more liquid than it can hold; it spills over and creates a mess.

2. Expansion Caused By Heat:

A heat-resistant fluid called brake fluid is made to function in high temperatures. However, the fluid can become quite hot when you apply the brakes. Heat-induced fluid expansion may be pushed out of the brake system if there isn’t enough room for it, leading to an excess. Imagine it as a balloon that expands when air is blown into it. The balloon may burst if there is not enough area for it.

3. Brake Line Leaks:

Another reason for too much brake fluid is leaking brake lines. Your brake lines may leak additional braking fluid into the system if they have minute cracks or holes in them. It’s like a water pipe with a tiny hole because the water keeps flowing where it shouldn’t.

4. A Damaged Master Cylinder:

A master cylinder is necessary for the proper operation of your car’s braking system. A broken master cylinder may push too much braking fluid into the system, causing an excess. Similar to a faucet that won’t shut off, it continues to spew water even when you tell it to stop.

Therefore, knowing the causes of excess brake fluid means you may take precautions to avoid it and maintain the condition of your brakes. It’s critical to comprehend and take care of this issue if you want to brake safely and effectively. The extra fluid must be removed, and your brake system must be in good working order.

How To Remove Excess Brake Fluid From A Car?

To make sure your brakes function properly and keep you safe on the road, it’s essential to drain any extra brake fluid from your automobile. Here is a brief explanation of how to do it step-by-step:

1. Collect The Equipment And Supplies:

Make sure you have all the required tools and materials before you begin:

  • Tester for brake fluid or test strips
  • Breathers for brakes
  • Wrench
  • Draining pan
  • Suitable brake fluid
  • Protective gloves and eyewear

2. Security First:

Always put safety first. Turn off your automobile’s engine, apply the emergency brake, and park your car somewhere flat. To shield your hands and eyes from brake fluid, put on protective goggles and gloves.

3. Locate The Extra Fluid:

To verify that there is truly extra brake fluid in your car’s braking system, use a brake fluid tester or test strips. It’s crucial to confirm that you’re addressing the appropriate problem.

4. Find The Brake Bleeding Valve:

The brake bleeder valve is typically found on the brake calliper of each wheel. Make sure you have the required equipment because you might need to remove the wheel in order to access it.

5. Make Your Brake Bleeder Kit:

To properly set it up, refer to the instructions that came with your brake bleeder kit. The removal of extra brake fluid from the system requires this item.

6. Open The Bleeder Valve:

Open the bleeder valve with a wrench after connecting the brake bleeder kit to it. To capture the extra liquid that will leak, have a drain pan available.

Rusted Bleeder Screw Giving You Trouble?

7. Get The Brakes Bleeding:

Press the brake pedal a few times while keeping the bleeder valve open. The extra brake fluid will be forced into the drain pan as a result. Continue repeating this until the proper amount of fluid has been added to replace the surplus.

8. Close The Bleeder Valve:

Once the surplus fluid has been drained, be careful to tightly shut the bleeder valve. It must be correctly tightened in order to keep air from getting into the brake system.

9. Continue For Every Wheel:

Repeat the procedure for every wheel to make sure all the extra brake fluid has been drained from the system. Working your way closer to the master cylinder, start with the wheel that is farthest away.

10. Check The Level Of Brake Fluid:

Check the reservoir’s brake fluid level after bleeding the brakes on all four wheels. You might need to top it out with new brake fluid even though it should be at the recommended level.

11. Dispose Of Brake Fluid Correctly:

Follow local laws and dispose of the extra brake fluid in an environmentally responsible manner.

Therefore, these methods can help you drain extra brake fluid from your car’s braking system, preserving the effectiveness and security of your brakes. This kind of routine maintenance is necessary to keep your car in good operating order and, more significantly, to ensure your safety while driving.


Therefore, now that we’ve learned how to remove excess brake fluid from a car. Additionally, remember your car’s braking system may develop a number of issues as a result of too much brake fluid, endangering your safety while driving. You may make sure that your brakes work as effectively as possible by comprehending the reasons and effects of excess brake fluid and using our step-by-step instructions to remove it. Maintaining your brake fluid regularly is an essential part of being a responsible auto owner and will keep you and your passengers safe on every trip.