my Tesla Model S Plaid/Refresh (2021-present) shows a coolant leak, what should I check

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

599 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 coolant leaks in Tesla Model S Plaid/Refresh. 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

•Always allow the engine to cool completely before working on the cooling system.
•Dispose of old coolant properly, as it is toxic to humans and animals.

Symptoms

•Visible coolant pooling under the vehicle
•Low coolant level warning on the dashboard
•Sweet smell of coolant inside or around the vehicle
•Overheating engine warning light
•Reduced HVAC performance

Diagnostic Steps

1
Inspect the ground beneath the vehicle for coolant puddles and note the location.
2
Check the coolant reservoir level and condition; look for discoloration or debris.
3
Examine the hoses connected to the coolant system for signs of wear or leaks.
4
Inspect the radiator for cracks or damage, including the plastic end tanks.
5
Verify the condition of the water pump for leaks or unusual noises.
6
Use a UV dye test if necessary to identify the source of the leak.

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

•Socket set
•Torque wrench
•Drain pan
•Screwdrivers
•Pliers
•Coolant funnel

Parts Required

•Replacement hoses (if damaged)
•New radiator (if damaged)
•New water pump (if leaking)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the ground beneath the vehicle for coolant puddles and note the location.
2
Check the coolant reservoir level and condition; look for discoloration or debris.
3
Examine the hoses connected to the coolant system for signs of wear or leaks.
4
Inspect the radiator for cracks or damage, including the plastic end tanks.
5
Verify the condition of the water pump for leaks or unusual noises.
6
Use a UV dye test if necessary to identify the source of the leak.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is cool.
Wear gloves and safety glasses for protection.

2. Drain Coolant

Place a drain pan under the radiator drain valve.
Open the valve and allow the coolant to drain completely.
Dispose of the coolant according to local regulations.

3. Inspect and Replace Affected Components

Hoses:
- Check all coolant hoses for cracks, soft spots, or leaks.
- If damaged, remove the old hose by loosening the clamps and installing a new hose, tightening the clamps to the recommended torque (typically 10-15 in-lbs).
Radiator:
- Inspect for any visible cracks or damage.
- If necessary, remove the radiator by disconnecting the upper and lower hoses, draining any remaining coolant, and unbolting it from its mounts.
- Install a new radiator if the old one is damaged, tightening mounting bolts to manufacturer specifications.
Water Pump:
- Check for leaks around the water pump seal.
- If a leak is found, remove the water pump by disconnecting it from the engine block and replacing it with a new one, ensuring to use new gaskets and torque bolts to manufacturer specs.

4. Refill Coolant

Fill the coolant reservoir with the recommended coolant type (Tesla recommends using a specific type of coolant, usually a 50/50 mix of water and propylene glycol).
Bleed the cooling system to remove any air pockets, following the manufacturer’s procedure.

5. Final Checks

Start the engine and allow it to reach operating temperature. Monitor for leaks and check the coolant level.
Ensure the HVAC system is functioning properly and that there are no further warning lights on the dashboard.