my Tesla Model S Plaid/Refresh (2021-present) is overheating during long drives

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

598 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 diagnose and fix overheating issues in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Cooling System

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the vehicle to cool down before opening any coolant system components.

Symptoms

•Overheating warning message on the display
•Reduced power output or performance throttling
•High coolant temperature readings
•Frequent activation of the cooling system
•Unusual fan noise from the front or rear of the vehicle

Diagnostic Steps

1
Check the vehicle's coolant level in the reservoir and ensure it is at the recommended level.
2
Use the Tesla diagnostics tool to scan for error codes related to the thermal management system.
3
Inspect the coolant pump for proper operation by listening for unusual noises or vibrations.
4
Verify the operation of the front and rear cooling fans by observing their activation during high-temperature conditions.
5
Check for any visible leaks in the coolant system, including hoses and fittings.
6
Review the battery management system for any alerts or notifications regarding temperatures.

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

•OBD-II scanner
•Torque wrench
•Coolant refill bottle
•Safety glasses
•Socket set

Parts Required

•Coolant (Tesla recommended type)
•Coolant pump (if replacement is needed)
•Cooling fan (if replacement is needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the vehicle's coolant level in the reservoir and ensure it is at the recommended level.
2
Use the Tesla diagnostics tool to scan for error codes related to the thermal management system.
3
Inspect the coolant pump for proper operation by listening for unusual noises or vibrations.
4
Verify the operation of the front and rear cooling fans by observing their activation during high-temperature conditions.
5
Check for any visible leaks in the coolant system, including hoses and fittings.
6
Review the battery management system for any alerts or notifications regarding temperatures.

Solution

1. Preparation

Gather tools: OBD-II scanner, torque wrench, coolant refill bottle, and safety glasses.
Ensure the vehicle is parked on a flat, level surface and in a well-ventilated area.
Disconnect the vehicle from the charging station if applicable.

2. Coolant Level Check and Refill

Open the front trunk and locate the coolant reservoir.
Remove the cap and check the coolant level against the markings.
If low, use the recommended Tesla coolant (typically a mixture of distilled water and coolant) to refill to the appropriate level.
Replace the cap securely.

3. Inspect and Replace the Coolant Pump (if necessary)

If the coolant pump is not functioning, locate it (typically near the front of the vehicle).
Disconnect the battery (safety warning: disconnect the battery before working on electrical systems).
Remove the mounting bolts securing the coolant pump using a socket set.
Disconnect the pump's electrical connector and coolant hoses (be cautious of any residual coolant).
Install the new coolant pump by reversing the removal steps, ensuring the connections are secure.

4. Test and Inspect Cooling Fans

Turn on the vehicle and monitor the operation of the front and rear cooling fans.
If a fan is faulty, access the fan assembly and disconnect the electrical connector.
Remove any retaining screws and lift the fan assembly out.
Replace with a new fan, reconnect the electrical connector, and secure the assembly.

5. Confirm System Integrity

Inspect all coolant hoses and connections for wear or leaks.
Tighten any loose clamps and replace damaged hoses.
Recheck the coolant level after repairs and run the vehicle until it reaches operating temperature, monitoring for any leaks.