Master the Art of Brake Maintenance: How to Remove Excess Brake Fluid

Maintaining your brakes is crucial for safe driving. One aspect of this maintenance involves ensuring the brake fluid level stays within the recommended range. Sometimes, however, you might find yourself with excess brake fluid in your master cylinder reservoir. This blog post will guide you through the process of how to remove excess brake fluid safely and effectively, helping you keep your braking system in tip-top shape.

Understanding Brake Fluid and Its Importance

Brake fluid is a hydraulic fluid that transmits pressure from the brake pedal to the calipers, which in turn squeeze the brake pads against the rotors, slowing or stopping the vehicle. This fluid is essential for smooth and effective braking.

Why Excess Brake Fluid is a Problem

Having too much brake fluid in the reservoir can be problematic for several reasons:

• Boiling Point: Brake fluid absorbs moisture over time, lowering its boiling point. Excess fluid increases the volume of moisture, making the fluid more susceptible to boiling. Boiling brake fluid can lead to brake failure, as the fluid loses its ability to transmit pressure effectively.
• System Pressure: Overfilling the reservoir can create excessive pressure within the braking system, potentially leading to leaks or damage to components.
• Air Bubbles: Excess fluid can trap air bubbles in the system, which can interfere with the hydraulic pressure and lead to spongy brakes.

Safety Precautions

Before you begin removing excess brake fluid, it’s essential to take the following safety precautions:

• Wear Protective Gear: Use gloves and eye protection to avoid contact with brake fluid, which can irritate skin and eyes.
• Work in a Well-Ventilated Area: Brake fluid fumes are toxic. Work in a well-ventilated area to prevent inhaling harmful vapors.
• Use the Correct Tools: Ensure you have the correct tools for the job, including a clean syringe, a clean container, and a rag for cleanup.

How to Remove Excess Brake Fluid

Here’s a step-by-step guide on how to remove excess brake fluid from your master cylinder reservoir:

1. Locate the Master Cylinder Reservoir: The master cylinder reservoir is typically located under the hood, near the firewall. It will have a cap with a brake fluid symbol.
2. Clean the Reservoir Area: Use a clean rag to wipe away any dirt or debris around the reservoir cap.
3. Open the Reservoir Cap: Carefully open the reservoir cap. The cap may have a small vent hole, so it’s important to avoid spilling brake fluid when opening it.
4. Use a Syringe to Extract Fluid: Insert a clean syringe into the reservoir and gently draw out the excess fluid. Be careful not to suck in any air.
5. Discard the Excess Fluid: Dispose of the excess brake fluid properly. Do not pour it down the drain or into the ground, as it can be harmful to the environment.
6. Check the Fluid Level: Once you have removed the excess fluid, check the level against the “Full” mark on the reservoir. If the level is still too high, repeat steps 4 and 5.
7. Replace the Reservoir Cap: Securely replace the reservoir cap.

Tips for Removing Excess Brake Fluid

• Don’t Overfill: When adding fresh brake fluid, it’s important to avoid overfilling the reservoir. Always refer to your vehicle’s owner’s manual for the correct fluid level.
• Use the Correct Type of Brake Fluid: Use the type of brake fluid recommended by your vehicle’s manufacturer. Using the wrong type of fluid can damage your braking system.
• Check for Leaks: If you notice any leaks in your braking system, it’s important to have them repaired by a qualified mechanic.

Preventative Measures: Avoiding Excess Brake Fluid

• Regularly Check Fluid Levels: Check the brake fluid level at least once a month. If the level is low, it may indicate a leak and should be addressed by a mechanic.
• Don’t Over-Bleed Brakes: When bleeding the brakes, be careful not to remove too much fluid. If you remove too much, it will be necessary to add more fluid to the reservoir.

Final Thoughts: Keeping Your Brakes in Top Condition

Removing excess brake fluid is a simple task that can help keep your braking system in optimal condition. By following the steps outlined in this guide, you can ensure that your brakes are functioning properly and safely. Remember, regular maintenance is key to preventing major problems and ensuring your safety on the road.

Questions You May Have

1. Is it okay to use a turkey baster to remove excess brake fluid?

While a turkey baster might seem like a convenient option, it’s not recommended. Turkey basters are not designed for handling brake fluid and may not provide the necessary precision. Using a clean syringe is the safest and most effective method.

2. How often should I change my brake fluid?

Brake fluid should be changed every two years or 30,000 miles, whichever comes first. This is because brake fluid absorbs moisture over time, lowering its boiling point and compromising its effectiveness.

3. What happens if brake fluid gets on my skin?

Brake fluid can irritate the skin and cause burns. If you get brake fluid on your skin, wash the affected area immediately with soap and water.

4. What should I do if I notice a leak in my brake system?

If you notice a leak in your brake system, it’s crucial to have it inspected and repaired by a qualified mechanic as soon as possible. Driving with a brake leak can be dangerous and lead to brake failure.