Overview
- 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 to slow down your vehicle.
- Water in the brake fluid can cause the fluid to compress, reducing the pressure applied to the brakes, leading to a longer stopping distance.
- This includes a bleeder screw wrench, a clear hose, and a container to collect the old fluid.
If you own a Tesla Model 3, maintaining your vehicle’s braking system is crucial for your safety and driving experience. Brake fluid, the lifeblood of your brakes, absorbs moisture over time, which can lead to reduced braking performance and even brake failure. This guide will walk you through the process of changing brake fluid in your Tesla Model 3, ensuring optimal braking efficiency and extending the lifespan of your braking system.
Why Change Brake Fluid?
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 to slow down your vehicle. Over time, brake fluid absorbs moisture from the air, reducing its boiling point. This moisture can lead to:
- Reduced braking performance: Water in the brake fluid can cause the fluid to compress, reducing the pressure applied to the brakes, leading to a longer stopping distance.
- Brake fade: When brake fluid boils, it creates vapor bubbles, which are compressible. This can lead to a loss of brake pressure, known as brake fade, especially during heavy braking or prolonged downhill driving.
- Corrosion: Moisture in brake fluid can corrode the brake system components, leading to leaks and premature failure.
To prevent these issues, it’s essential to change your brake fluid regularly. Tesla recommends changing brake fluid every two years or 20,000 miles, whichever comes first.
Materials You’ll Need
Before you begin, gather the following materials:
- Tesla-approved brake fluid: Ensure you use DOT 4 brake fluid specifically designed for Tesla vehicles.
- Brake fluid bleeder kit: This includes a bleeder screw wrench, a clear hose, and a container to collect the old fluid.
- Torque wrench: To tighten the bleeder screws to the correct specifications.
- Clean rags: To wipe up spills and keep your hands clean.
- Safety glasses: To protect your eyes from splashes.
- Gloves: To protect your hands from brake fluid.
- Jack and jack stands: To raise the vehicle safely.
Preparation and Safety
1. Park on a level surface: Ensure the Tesla Model 3 is parked on a level surface with the parking brake engaged.
2. Gather your materials: Have all the necessary tools and materials readily available.
3. Wear safety gear: Put on safety glasses and gloves before proceeding.
4. Warm up the brakes: Drive the vehicle for a few minutes to warm up the brake fluid, making it easier to bleed.
5. Locate the bleeder screws: The bleeder screws are located on the top of each caliper, typically marked with a small hexagonal shape.
6. Open the reservoir cap: Locate the brake fluid reservoir, usually near the master cylinder, and remove the cap.
7. Inspect the fluid level: Ensure the brake fluid level is above the “MIN” mark. If not, top it off with Tesla-approved brake fluid.
Bleeding the Brakes
1. Start with the rear passenger side: Begin with the rear passenger side caliper, as it’s the furthest from the master cylinder.
2. Attach the bleeder hose: Connect the clear hose from the bleeder kit to the bleeder screw. The other end of the hose should be submerged in a container.
3. Open the bleeder screw: Use the wrench to open the bleeder screw slightly.
4. Pump the brake pedal: Have an assistant gently pump the brake pedal several times, allowing the old fluid to flow out through the hose into the container.
5. Close the bleeder screw: Once the fluid runs clear, close the bleeder screw tightly using the torque wrench.
6. Repeat for other calipers: Repeat the process for the remaining calipers, starting with the rear driver‘s side, then the front passenger side, and finally the front driver‘s side.
7. Top off the reservoir: After each bleed, check the brake fluid level in the reservoir and top it off with fresh fluid as needed.
Final Checks and Maintenance
1. Inspect the brake fluid level: After bleeding all four calipers, ensure the brake fluid level is within the “MIN” and “MAX” marks on the reservoir.
2. Test the brakes: Take the vehicle for a test drive and apply the brakes several times to ensure they are working properly.
3. Check for leaks: Inspect the bleeder screws and brake lines for any signs of leaks.
4. Dispose of old brake fluid: Properly dispose of the old brake fluid according to local regulations. Avoid pouring it down the drain, as it can be harmful to the environment.
Key Takeaways and Tips
- Use the correct brake fluid: Always use Tesla-approved DOT 4 brake fluid for optimal performance and safety.
- Bleed the brakes in the correct order: Bleeding the brakes in the order outlined above ensures proper fluid flow and prevents air bubbles from getting trapped in the system.
- Avoid overfilling the reservoir: Overfilling the reservoir can cause pressure buildup and damage the master cylinder.
- Check for leaks: Regularly inspect your brake system for any signs of leaks, which can indicate a problem with the calipers, hoses, or master cylinder.
- Maintain your brakes: Regular maintenance, including brake fluid changes, is essential to ensure the longevity and safety of your Tesla Model 3.
Beyond the Basics: Advanced Tips for Tesla Model 3 Brake Fluid Change
- Consider using a pressure bleeder: For even more efficient and thorough bleeding, consider using a pressure bleeder. This specialized tool uses compressed air to force the fluid through the system, ensuring all air bubbles are removed.
- Inspect the brake pads and rotors: While you have the wheels off, take the opportunity to inspect the brake pads and rotors for wear and tear. If they are nearing the end of their lifespan, replace them at the same time as the brake fluid change.
- Check the brake lines: Inspect the brake lines for any signs of corrosion or damage. If you find any issues, address them immediately to prevent leaks and potential brake failure.
A Final Note: Seek Professional Assistance
While changing brake fluid in your Tesla Model 3 can be a DIY project, it’s important to note that it requires careful attention to detail and proper technique. If you are unsure about any part of the process or feel uncomfortable working on your vehicle, it’s best to seek professional assistance from a certified Tesla technician or a reputable auto repair shop.
Questions We Hear a Lot
Q: How often should I change brake fluid in my Tesla Model 3?
A: Tesla recommends changing brake fluid every two years or 20,000 miles, whichever comes first.
Q: Can I use any type of brake fluid in my Tesla Model 3?
A: No, it’s crucial to use Tesla-approved DOT 4 brake fluid. Using any other type of brake fluid can damage the brake system and compromise its performance.
Q: What happens if I don’t change the brake fluid on time?
A: Delayed brake fluid changes can lead to reduced braking performance, brake fade, corrosion, and even brake failure.
Q: Can I bleed the brakes myself, or should I take it to a professional?
A: Bleeding the brakes can be done as a DIY project if you are comfortable working on your vehicle and have the necessary tools and knowledge. However, if you are unsure or uncomfortable, it’s best to take your Tesla Model 3 to a professional for the brake fluid change.
Q: How much does it cost to have a professional change the brake fluid in my Tesla Model 3?
A: The cost of a professional brake fluid change can vary depending on the location and the specific shop. However, you can expect to pay around $100-$200 for this service.