Brake fluid is essential to the practical and smooth operation of your vehicle’s braking system. Brake fluid can get polluted over time, resulting in diminished braking performance and significant safety issues. As a result, changing your brake fluid on a regular basis is critical for maintaining maximum vehicle safety. We’ll lead you through the process of replacing your brake fluid, ensuring that your brakes operate at their best in this detailed article. So let’s get started and figure out how to change brake fluid like an expert.
Tools and Materials Required
Before starting the brake fluid change process, gather the following tools and materials:
- Brake fluid (check your vehicle’s specifications for the correct type)
- Wrench or socket set
- Turkey baster or brake fluid pump
- Drain pan
- Clean cloth or shop towels
- Jack and jack stands or ramps
- Safety goggles and gloves
Step-by-Step Guide to Changing Brake Fluid
Follow these steps to change your brake fluid and ensure optimal braking performance:
Step 1: Safety First
Position your car on a level surface and apply the parking brake. Wear safety goggles and gloves during the procedure to safeguard your eyes and hands.
Step 2: Lift the Vehicle
Using a jack and jack stands or ramps, lift up your vehicle to gain access to the brake components. Ensure that the car is stable and secure before proceeding.
Step 3: Locate the Brake Fluid Reservoir
Open the vehicle’s hood and locate the brake fluid reservoir. It is typically located near the firewall, on the driver’s side of the engine compartment.
Step 4: Prepare for Fluid Extraction
To avoid contamination, clean the area surrounding the reservoir cover. Flush out the old brake fluid from the reservoir with a turkey baster or a brake fluid pump. Get rid of the old fluid correctly.
Step 5: Bleed the Brake System
Starting with the brake farthest from the master cylinder, attach a clear plastic hose to the brake bleeder valve. Immerse the other end of the hose into a container partially filled with fresh brake fluid.
Step 6: Bleed the Brakes
With the assistance of a friend or using a one-person brake bleeder tool, slowly pump the brake pedal several times and hold it down. Open the bleeder valve slightly until the fluid flows steadily. Close the valve and replicate this process for each brake until the fluid appears clean and free from air bubbles.
Step 7: Refill the Reservoir
Refill the brake fluid reservoir with fresh fluid, ensuring it reaches the recommended level. Be cautious not to introduce air bubbles while refilling.
Step 8: Check for Leaks and Test the Brakes
Inspect the brake system for any signs of leaks or fluid seepage. Once you’ve confirmed no leaks are present, it’s crucial to test your brakes to ensure they are functioning correctly. Follow these steps to test the brakes:
- Start the car engine and pump the brake pedal several times to build pressure in the system.
- While stationary, apply firm and consistent pressure to the brake pedal. Observe if the pedal feels firm and does not sink to the floor.
- Take the vehicle for a short drive at a low speed and test the brakes. Pay attention to any unusual noises, vibrations, or changes in braking performance.
- If you notice any issues during the test, such as spongy pedal feel or reduced braking power, consult a professional mechanic for further inspection and maintenance.
Why Should You Change Brake Fluids Regularly?
Regular brake fluid changes are vital to maintaining your vehicle’s safety and performance. Here are most reasons why you should make brake fluid maintenance a priority:
Brake fluid absorbs moisture.
Over time, brake fluid may accumulate moisture from the surrounding air, resulting in a lower boiling point and reduced braking performance.
Contaminants affect performance
Brake fluid can accumulate contaminants like dirt, debris, and brake dust, compromising its ability to transmit hydraulic pressure effectively.
Preventing brake system corrosion
Old and contaminated brake fluid can cause corrosion within the brake system, leading to costly repairs and potential brake failure.
Extending brake component lifespan
By changing the brake fluid regularly, you can help extend the lifespan of crucial brake systems components such as calipers, master cylinders, and brake lines.
Common Mistakes to Avoid When Changing Brake Fluid
When changing brake fluid, it is crucial to handle the process with care and avoid inevitable common mistakes that can compromise the effectiveness and safety of your braking system. Here are ten common mistakes to avoid, along with tips on how to prevent them:
1. Mixing different types of brake fluid
Different vehicles require specific types of brake fluid (DOT 3, DOT 4, DOT 5, etc.). Mixing various kinds can result in a chemical reaction, leading to reduced brake performance. Consistently use the recommended brake fluid for your vehicle and avoid mixing different types.
2. Not using a clean container
Brake fluid is hygroscopic, meaning it absorbs moisture from the air. To avoid contamination, use a clean and sealed container to store brake fluid. Avoid using an open or dirty container, as it can introduce moisture or debris into the fluid.
3. Allowing brake fluid to come into contact with paint
Brake fluid can damage the paint and cause permanent discoloration. When bleeding the brakes or changing the fluid, use appropriate protection to prevent any spills or splashes on the vehicle’s painted surfaces.
4. Neglecting to remove the old fluid completely
Brake fluid should be completely flushed and replaced during the fluid change process. Failing to remove all the old fluid can lead to reduced braking performance and potentially compromise the system’s integrity. Follow the proper bleeding procedure to ensure the old fluid is completely expelled.
5. Not following the manufacturer’s specifications
Each vehicle has its own recommended brake fluid change interval and specifications. It is essential to consult your vehicle’s owner’s guide or reach out to the manufacturer to ensure you’re using the correct fluid and following the recommended guidelines.
6. Ignoring air bubbles in the brake lines
Air bubbles can enter the brake lines during the fluid change process, resulting in a spongy or ineffective brake pedal. Properly bleeding the brake system is crucial to remove any air bubbles and ensure a firm brake pedal feel. Follow the recommended bleeding procedure for your vehicle.
7. Overfilling or underfilling the brake fluid reservoir
The brake fluid reservoir should be filled to the correct level indicated by the manufacturer. Overfilling can lead to brake fluid leaks, while underfilling can introduce air into the system. Maintain the fluid level within the recommended range to prevent these issues.
8. Reusing old brake fluid
Brake fluid deteriorates over time due to moisture absorption and heat exposure. Reusing old fluid can compromise the performance of your brakes. Always use fresh, unopened brake fluid from a sealed container when performing a fluid change.
9. Not using the proper tools
Brake fluid changes require specific tools, such as a brake bleeding kit, appropriate wrenches, and a clean container for old fluid disposal. Using improper tools can lead to leaks, incorrect bleeding, or damage to components. Make sure you have the necessary tools for the job.
10. Failing to test the brake system after the fluid change
Once you’ve completed the brake fluid change, it’s essential to test the brake system for proper operation. Check the brake pedal feel, responsiveness, and any signs of leakage. Take the car for a brief test drive in a safe area to ensure the brakes are functioning correctly.
To avoid these mistakes, it’s crucial to follow the manufacturer’s recommendations, use proper tools and techniques, and pay attention to details during the brake fluid change process. If you need more clarification or need to familiarize yourself with the procedure, consider consulting an experienced mechanic to make sure the job is done properly.
Also Read: How Much Oil Does My Car Need?
Risk Associated With Not Changing Brake Fluid
Not changing brake fluid when due can pose several risks to the vehicle’s braking system and overall safety. Here are five dangers associated with neglecting brake fluid changes:
1. Reduced brake performance
Brake fluid is hygroscopic, meaning it absorbs moisture from the air over time. As water accumulates in the brake fluid, it lowers the fluid’s boiling point and compromises its ability to withstand high temperatures. This could result in braking fade, where the brakes become less effective due to overheating. Inadequate brake performance can increase stopping distances and make it harder to control the vehicle, increasing the risk of accidents.
2. Corrosion and damage to brake components
Moisture-contaminated brake fluid can cause corrosion and damage to critical brake systems components such as brake lines, calipers, and master cylinders. Corroded brake lines may develop leaks, leading to a loss of brake fluid and decreased braking ability. Damaged calipers or master cylinders can result in uneven braking or complete brake failure. Neglecting brake fluid changes increases the likelihood of these issues, which can be expensive to repair and compromise safety.
3. Brake system contamination
Over time, brake fluid can accumulate debris, dirt, and brake dust particles. These contaminants can enter the brake lines and cause blockages or clog the narrow passages in the brake system. Contaminated brake fluid may also affect the proper functioning of brake components, such as ABS (Anti-lock Braking System) sensors. A dirty brake system can lead to brake malfunction or uneven braking, jeopardizing safety on the road.
4. Brake fluid breakdown
Brake fluid deteriorates over time due to exposure to heat and contaminants. It loses its viscosity and lubricating properties, leading to a decrease in the brake system’s efficiency. Old brake fluid may become thick and sticky, causing problems with the smooth operation of the brake system, such as sticking calipers or sluggish brake pedal response. This breakdown of brake fluid can compromise the overall safety and reliability of the braking system.
5. Costly repairs and potential accidents
Neglecting brake fluid changes can lead to significant brake system failures that require expensive repairs. The cost of replacing corroded brake lines, damaged calipers, or a master cylinder far exceeds the cost of regular brake fluid maintenance. Moreover, compromised brake performance can result in accidents, injuries, or even fatalities. The risks associated with faulty brakes highlight the importance of regular brake fluid changes to maintain optimal safety.
Frequently Asked Questions (FAQs)
How frequently should I change my brake fluid?
It is usually suggested to change your brake fluid every 2-3 years or as specified in your vehicle’s owner’s manual. However, if you notice signs of contamination or experience brake system issues, it is advisable to change the brake fluid promptly.
Can I change the brake fluid myself, or should I take it to a professional?
Changing brake fluid can be done as a DIY project, but it requires caution and proper knowledge. If you are confident working on your vehicle and have the needed tools, you can do it yourself. However, if you are unsure or inexperienced, it’s safer to have a professional mechanic perform the brake fluid change.
Which type of brake fluid should I use?
According to your vehicle’s specifications, you should use a certain kind of brake fluid. Refer to your owner’s manual or consult a trusted mechanic to determine the correct type of brake fluid for your vehicle.
Can I reuse old brake fluid?
It is not advised to reuse old brake fluid. Over time, brake fluid accumulates contaminants and moisture, which can negatively impact its performance. Always use fresh, unopened brake fluid when changing your brake fluid.
What are the signs of contaminated brake fluid?
Signs of contaminated brake fluid include a dark or cloudy appearance, a burnt smell, reduced braking performance, a spongy pedal feel, or leaks in the brake system. If you discover any of these signs, it’s time to replace your braking fluid.
Also Read: Brake Light Switch: All You Need To Know
Conclusion
Regularly changing your brake fluid is a crucial aspect of maintaining optimal vehicle safety. By adhering to the step-by-step guide presented in this post, you can ensure that your brake fluid remains clean and free from contaminants, allowing your braking system to operate efficiently. Remember always to prioritize safety, use the recommended tools and materials, and consult a professional if you have any doubts or concerns. By taking care of your brake fluid, you are investing in the longevity and performance of your vehicle’s braking system. Drive safely!