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

502 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

•Ensure the vehicle is parked on a level surface and the parking brake is engaged.
•Brake fluid can damage paint and plastics; handle with care.

Symptoms

•Brake warning light illuminated on the dashboard
•Spongy or soft brake pedal feel
•Decreased braking responsiveness
•Brake fluid contamination (dark or murky fluid)
•Unusual noises when braking

Diagnostic Steps

1
Inspect brake fluid reservoir for fluid condition and level.
2
Check for any leaks in the brake lines or around the brake components.
3
Monitor the brake pedal feel and response during a stationary test.
4
Use an OBD-II scanner to check for any related error codes.

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 bleeder kit
•Wrench set
•Clean rags
•Safety goggles
•Gloves

Parts Required

•Brake fluid (DOT 3 or DOT 4)

Related Faults

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Solution

1. Preparation

Gather Tools and Parts:
- Brake fluid (DOT 3 or DOT 4, as specified)
- Brake bleeder kit
- Wrench set
- Clean rags
- Safety goggles and gloves
Safety Warning: Ensure the vehicle is parked on a level surface and the parking brake is engaged before beginning work.

2. Remove Old Brake Fluid

Sub-steps:
1. Open the front trunk and locate the brake fluid reservoir.
2. Use a turkey baster or a syringe to remove old fluid from the reservoir.
3. Dispose of the old brake fluid according to local regulations.

3. Refill with New Brake Fluid

Sub-steps:
1. Pour new brake fluid into the reservoir until it reaches the "MAX" line.
2. Replace the reservoir cap securely.

4. Bleed the Brake System

Sub-steps:
1. Locate the brake bleeder valve on each brake caliper (front and rear).
2. Connect a brake bleeder kit to the valve.
3. Have an assistant press the brake pedal while you open the bleeder valve to allow air and old fluid to escape.
4. Close the valve before the assistant releases the brake pedal.
5. Repeat this process until clear new fluid is seen at the bleeder and no air bubbles are present.
6. Repeat for all four brake calipers.

5. Final Check

Sub-steps:
1. Check the brake fluid level in the reservoir again and top off if necessary.
2. Inspect all connections for leaks after the bleeding process.
3. Test the brake pedal feel to ensure it is firm.