how to replace the brake fluid in Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

critical

Severity

3 min read

497 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to replace brake fluid in Tesla Model S (2012-2020). Step-by-step instructions for optimal braking performance and safety.

Affected Component

Brakes

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Brake fluid is corrosive; avoid contact with paint and plastic surfaces.
•Ensure the vehicle is securely parked and stable while working on the brake system.

Symptoms

•Brake pedal feels spongy or unresponsive
•Warning light for brake system illuminated
•Decreased braking efficiency
•Brake fluid appears dark or contaminated
•Unusual noises when applying brakes

Diagnostic Steps

1
Inspect the brake fluid reservoir for fluid condition and level.
2
Check for any visible leaks in brake lines and connections.
3
Verify brake performance by performing a brake test at low speeds.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Brake fluid
•Brake bleeder kit
•Funnel
•Safety goggles
•Gloves

Parts Required

•New brake fluid (DOT 3 or DOT 4)

Related Faults

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Solution

1. Preparation

Tools Required:
- Brake fluid
- Brake bleeder kit
- Funnel
- Safety goggles
- Gloves
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Wear safety goggles and gloves to prevent contact with brake fluid.

2. Remove Old Brake Fluid

Open the front trunk and locate the brake fluid reservoir (usually near the driver's side).
Using a siphon or turkey baster, remove as much old brake fluid as possible from the reservoir.
Dispose of the old brake fluid according to local regulations.

3. Add New Brake Fluid

Using a funnel, fill the reservoir with new brake fluid that meets the manufacturer's specifications (usually DOT 3 or DOT 4).
Do not overfill; maintain the fluid level within the recommended range.

4. Bleed the Brake System

Attach the brake bleeder kit to the brake caliper bleeder valve (start with the wheel farthest from the master cylinder).
Open the bleeder valve slightly and have an assistant press the brake pedal.
Allow the old fluid to flow out until new fluid appears, then close the bleeder valve before releasing the brake pedal.
Repeat this process for each brake caliper until the fluid runs clear and free of bubbles.
Ensure fluid level in the reservoir remains adequate throughout the bleeding process.

5. Final Checks

Inspect all connection points for leaks after bleeding.
Recheck the brake fluid level in the reservoir and top off if necessary.
Close the brake fluid reservoir cap securely.