how to check the brake fluid level on Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

15-30 minutes

Time

easy

Difficulty

critical

Severity

3 min read

453 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 check and top off the brake fluid level in a Tesla Model S (2012-2020). Step-by-step guide with diagnostic steps and safety tips.

Affected Component

Brakes

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Avoid skin contact with brake fluid, as it is corrosive and can damage surfaces.

Symptoms

•Brake warning light illuminated on the dashboard
•Reduced braking performance or spongy brake pedal feel
•Unusual noises coming from the braking system
•Fluid leak observed around the brake components

Diagnostic Steps

1
Open the front trunk (frunk) to access the brake fluid reservoir.
2
Locate the brake fluid reservoir, which is typically near the driver's side under the hood.
3
Visually inspect the reservoir for the minimum and maximum level markings.
4
Check the fluid color; it should be clear or light amber; dark or contaminated fluid may require a change.
5
Inspect the surrounding area for any signs of leaks or fluid stains.

Solution

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

•Clean cloth or paper towel
•Funnel (if needed for topping off)

Parts Required

•Brake fluid (recommended type: DOT 3 or DOT 4)

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Diagnostic Steps

1
Open the front trunk (frunk) to access the brake fluid reservoir.
2
Locate the brake fluid reservoir, which is typically near the driver's side under the hood.
3
Visually inspect the reservoir for the minimum and maximum level markings.
4
Check the fluid color; it should be clear or light amber; dark or contaminated fluid may require a change.
5
Inspect the surrounding area for any signs of leaks or fluid stains.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface.
Turn off the vehicle and engage the parking brake for safety.

2. Access the Brake Fluid Reservoir

Open the front trunk (frunk).
Locate the brake fluid reservoir, identified by its cap labeled with a brake symbol.

3. Check Fluid Level

Look at the side of the reservoir to see the fluid level against the minimum and maximum markers.
If the level is below the minimum line, this indicates a need for a fluid top-off.

4. Top Off Brake Fluid (if needed)

Use only the recommended brake fluid type (typically DOT 3 or DOT 4, confirm with the owner's manual).
Clean the reservoir cap and area to prevent contamination.
Carefully open the reservoir cap and add brake fluid until it reaches the maximum level.
Replace the cap securely to avoid any leaks.

5. Clean Up

Wipe any spilled brake fluid immediately, as it can damage paint and surfaces.
Close the frunk securely after completing the process.