how to check the coolant level in my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

15-30 minutes

Time

easy

Difficulty

medium

Severity

3 min read

410 words

Problem Statement

Learn how to check and maintain the coolant level in your Tesla Model S (2012-2020). Step-by-step instructions for proper coolant management.

Affected Component

Cooling System

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is cool before opening the coolant reservoir to prevent burns from hot coolant or steam.

Symptoms

•Coolant warning light illuminated on the dashboard
•Engine or battery temperature warnings
•Poor heating performance in the cabin
•Unusual engine sounds or performance issues

Diagnostic Steps

1
Open the front trunk (frunk) using the vehicle's key fob or touchscreen.
2
Locate the coolant reservoir; it is typically a translucent plastic tank.
3
Inspect the coolant level through the reservoir; you should see 'MIN' and 'MAX' markings.
4
If necessary, check for any visible leaks around the reservoir or associated hoses.
5
If low, check the vehicle's manual for the appropriate coolant type before adding.

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 (or compatible coolant)

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Diagnostic Steps

1
Open the front trunk (frunk) using the vehicle's key fob or touchscreen.
2
Locate the coolant reservoir; it is typically a translucent plastic tank.
3
Inspect the coolant level through the reservoir; you should see 'MIN' and 'MAX' markings.
4
If necessary, check for any visible leaks around the reservoir or associated hoses.
5
If low, check the vehicle's manual for the appropriate coolant type before adding.

Solution

1. Preparation

Gather necessary tools and materials.
Ensure the vehicle is parked on a level surface and turned off.
Allow the vehicle to cool down if it has been recently driven.

2. Inspect the Coolant Reservoir

Locate the coolant reservoir in the front trunk.
Visually check the coolant level against the "MIN" and "MAX" markings.
If the coolant is below the "MIN" line, prepare to add coolant.

3. Add Coolant

Purchase the recommended coolant type from Tesla or a compatible brand (typically a propylene glycol-based coolant).
Remove the cap of the coolant reservoir carefully to avoid any pressure release.
Using a funnel, add coolant until it reaches the "MAX" line.
Replace the cap securely on the coolant reservoir.

4. Check for Leaks

After adding coolant, inspect around the reservoir and hoses for any signs of leaks.
Start the vehicle and allow it to reach operating temperature, observing any potential leaks during this time.