how to check for leaks in Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

582 words

Problem Statement

Learn how to check for leaks in Tesla Model S (2012-2020) cooling system. Step-by-step diagnostic and repair guide for common leak issues.

Affected Component

Cooling System

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is turned off and cool before inspecting the cooling system.
•Avoid direct contact with any fluids, as they may be hazardous.

Symptoms

•Visible fluid pooling under the vehicle
•Unusual smells inside the cabin
•Wet carpets or upholstery in the passenger compartment
•Warning messages on the dashboard related to battery or cooling system
•Increased condensation on windows

Diagnostic Steps

1
Inspect the ground beneath the vehicle for any pooled fluid and note its color and consistency.
2
Perform a visual inspection of the undercarriage for signs of fluid leaks from hoses, connections, and the battery pack.
3
Check the coolant reservoir for proper fluid level and look for any signs of leaks around the reservoir cap and hoses.
4
Use a UV leak detection dye in the coolant system if necessary and examine with a UV light for any leaks.
5
Inspect the trunk area for any signs of water intrusion, particularly around the seals and drains.
6
Check the HVAC system for proper drainage by ensuring the drain tubes are clear and not clogged.

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

•Flashlight
•UV leak detection kit
•Towel or rags
•Safety glasses

Parts Required

•Replacement hoses (if leaks are found)
•Coolant reservoir (if cracked)
•Cabin air filter (if damaged by water)

Related Faults

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Diagnostic Steps

1
Inspect the ground beneath the vehicle for any pooled fluid and note its color and consistency.
2
Perform a visual inspection of the undercarriage for signs of fluid leaks from hoses, connections, and the battery pack.
3
Check the coolant reservoir for proper fluid level and look for any signs of leaks around the reservoir cap and hoses.
4
Use a UV leak detection dye in the coolant system if necessary and examine with a UV light for any leaks.
5
Inspect the trunk area for any signs of water intrusion, particularly around the seals and drains.
6
Check the HVAC system for proper drainage by ensuring the drain tubes are clear and not clogged.

Solution

1. Preparation

Tools Required: Flashlight, UV leak detection kit, towel or rags, safety glasses.
Ensure the vehicle is parked on a flat surface and the engine is off.
Wear safety glasses to protect your eyes during inspection.

2. Inspect Underbody and Components

Use the flashlight to illuminate the undercarriage and inspect for any wet spots or fluid trails.
Check hoses and connections for cracks or damage, especially around the radiator and coolant lines.
Use the UV light to scan any areas where the dye was added; look for glowing spots indicating leaks.

3. Check Cabin Seals and Drainage

Open the trunk and inspect the seams and seals. Ensure no water is pooling.
Clear any debris from drainage holes to prevent water buildup.
Check the cabin filter area for any signs of moisture or leaks.

4. Repair or Replace Affected Components

If leaks are found in hoses, replace them with OEM or high-quality aftermarket parts.
Ensure all clamps are tight and secure after replacing any hoses.
If the coolant reservoir is cracked, replace it and refill the system with Tesla-approved coolant.

5. Test for Success

After repairs, run the vehicle and monitor for any leaks by observing the previously inspected areas.
Allow the vehicle to sit for a period and check again for any signs of fluid accumulation.