how to check the coolant level on Tesla Model 3 Highland (2024-present)?

Tesla Model 3 Highland (2024-present)

Error Codes

15-30 minutes

Time

easy

Difficulty

medium

Severity

3 min read

410 words

Problem Statement

Learn how to check the coolant level in your Tesla Model 3 Highland (2024-present). Step-by-step guide to ensure your cooling system is functioning properly.

Affected Component

Cooling System

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Allow the engine to cool before checking coolant levels to prevent burns.

Symptoms

•Coolant warning light illuminated on the dashboard
•Unusual engine temperature readings
•Decreased heating performance in the cabin
•Visible coolant leaks under the vehicle
•Steam or coolant smell inside the cabin

Diagnostic Steps

1
Open the front trunk (frunk) of the Tesla Model 3.
2
Locate the coolant reservoir, which is typically near the front of the vehicle.
3
Inspect the coolant reservoir for visible coolant levels through its translucent sides.
4
If necessary, remove the cap from the coolant reservoir to check the level directly.
5
Check for any signs of leaks around hoses and connections.

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

•Funnel

Parts Required

•Tesla-approved coolant

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Diagnostic Steps

1
Open the front trunk (frunk) of the Tesla Model 3.
2
Locate the coolant reservoir, which is typically near the front of the vehicle.
3
Inspect the coolant reservoir for visible coolant levels through its translucent sides.
4
If necessary, remove the cap from the coolant reservoir to check the level directly.
5
Check for any signs of leaks around hoses and connections.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface.
Wait for the engine to cool down to avoid burns.

2. Inspect Coolant Reservoir

Open the frunk by pulling the release lever inside the vehicle or using the Tesla app.
Locate the coolant reservoir, which is typically located near the front of the frunk area.

3. Check Coolant Level

Visually inspect the coolant level through the translucent reservoir.
- If the level is below the "MIN" line, coolant needs to be added.
If needed, remove the cap by turning it counterclockwise.
Use a funnel to add coolant if the level is low, ensuring you use the correct type of coolant as specified in the owner’s manual.

4. Replace Cap and Close Frunk

After adding coolant, replace the cap securely by turning it clockwise until it clicks into place.
Close the frunk by lowering it gently until it latches securely.