how to check 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

2 min read

373 words

Problem Statement

Learn how to check and maintain coolant levels in your Tesla Model S (2012-2020). Step-by-step instructions for ensuring optimal cooling system performance.

Affected Component

Cooling System

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is parked on a level surface and turned off for safety.
•Ensure the vehicle is off and cool before opening the coolant reservoir.

Symptoms

•Coolant warning light illuminated on the dashboard
•Unusual engine temperature readings
•Increased heater or air conditioning inefficiency
•Visible coolant leaks under the vehicle
•Frequent need for coolant top-ups

Diagnostic Steps

1
Open the front trunk (frunk) and find the coolant reservoir, typically near the front of the frunk on the driver’s side.
2
Check the side of the reservoir for the minimum and maximum level indicators.
3
Look for any discoloration or debris in the coolant, indicating contamination.
4
Examine the area around the reservoir and under the vehicle for any signs of coolant leaks.

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
•Clean cloth or paper towel

Parts Required

•Tesla-approved coolant

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Diagnostic Steps

1
Open the front trunk (frunk) and find the coolant reservoir, typically near the front of the frunk on the driver’s side.
2
Check the side of the reservoir for the minimum and maximum level indicators.
3
Look for any discoloration or debris in the coolant, indicating contamination.
4
Examine the area around the reservoir and under the vehicle for any signs of coolant leaks.

Solution

1. Preparation

Tools Required: Clean cloth or paper towel for wiping.
Safety Warnings: Ensure the vehicle is parked on a level surface and turned off for safety.

2. Check Coolant Level

Step 1: Open the frunk and locate the coolant reservoir.
Step 2: With the vehicle off, inspect the reservoir’s side markings for the coolant level.
Step 3: If the level is below the minimum mark, proceed to add coolant.

3. Add Coolant (if necessary)

Step 1: Use a funnel to avoid spills.
Step 2: Add Tesla-approved coolant (typically a 50/50 mix of distilled water and coolant) until it reaches the maximum level.
Step 3: Replace the reservoir cap securely, ensuring no leaks.