how to check brake fluid level on my Tesla Model 3 Original (2017-2023)

Tesla Model 3 Highland (2024-present)

Error Codes

15-30 minutes

Time

medium

Difficulty

high

Severity

3 min read

424 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 brake fluid level in Tesla Model 3 (2017-2023). 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 getting brake fluid on vehicle paint, as it can cause damage.
•Ensure the vehicle is turned off and on a flat surface before performing checks.

Symptoms

•Brake warning light illuminated on the dashboard
•Soft or spongy brake pedal feel
•Increased stopping distance
•Fluid leaks under the vehicle
•Brake system alert displayed on the touchscreen

Diagnostic Steps

1
Locate the brake fluid reservoir under the hood.
2
Inspect the reservoir for visible fluid levels without opening it.
3
If necessary, remove the cap to check the fluid level directly.
4
Examine the condition of the fluid (clear, no contaminants).
5
Check for any signs of leaks around the reservoir and brake lines.

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

•Flashlight
•Clean funnel

Parts Required

•Brake fluid (DOT 3 or DOT 4)

Related Faults

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Diagnostic Steps

1
Locate the brake fluid reservoir under the hood.
2
Inspect the reservoir for visible fluid levels without opening it.
3
If necessary, remove the cap to check the fluid level directly.
4
Examine the condition of the fluid (clear, no contaminants).
5
Check for any signs of leaks around the reservoir and brake lines.

Solution

1. Preparation

Ensure the vehicle is on a flat surface and turned off.
Gather the necessary tools: flashlight for better visibility if needed.

2. Locate the Brake Fluid Reservoir

Open the front trunk (frunk) of the Tesla Model 3.
Identify the brake fluid reservoir, which is typically located near the driver's side.

3. Check Brake Fluid Level

Use a flashlight to inspect the fluid level through the transparent side of the reservoir.
If the fluid level is low, carefully remove the cap.
Inspect the brake fluid; it should be clear to light yellow in color.

4. Top Off Brake Fluid (if necessary)

Use only the recommended brake fluid type (usually DOT 3 or DOT 4).
Using a clean funnel, add brake fluid until it reaches the “MAX” line on the reservoir.
Replace the cap securely after topping off.

5. Cleanup

Wipe any spilled fluid immediately to prevent damage to the vehicle's paint.
Dispose of any used materials properly.