why does my Tesla Model S Original (2012-2020) have a strange smell when driving

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

541 words

Problem Statement

Learn how to diagnose and fix strange smells in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before inspecting the electrical system to avoid shock or short circuits.

Symptoms

•Unusual burning or chemical odor inside the cabin
•Sweet smell resembling antifreeze
•Musty or moldy smell when using the air conditioning
•Strong rubber or plastic odor
•Occasional electrical burning smell

Diagnostic Steps

1
Inspect the cabin air filter for dirt or mold buildup.
2
Check for any visible signs of fluid leaks under the vehicle.
3
Examine the tires for excessive wear or overheating.
4
Scan the vehicle’s system for error codes related to the HVAC or electrical system.
5
Inspect the wiring and connectors in the engine compartment for signs of damage or overheating.
6
Check the coolant levels and look for any leaks in the cooling system.

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

•Gloves
•Flashlight
•Vacuum cleaner
•Screwdriver set

Parts Required

•Cabin air filter
•Replacement hoses or seals (if leaks are found)
•New tires (if needed)

Related Faults

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Diagnostic Steps

1
Inspect the cabin air filter for dirt or mold buildup.
2
Check for any visible signs of fluid leaks under the vehicle.
3
Examine the tires for excessive wear or overheating.
4
Scan the vehicle’s system for error codes related to the HVAC or electrical system.
5
Inspect the wiring and connectors in the engine compartment for signs of damage or overheating.
6
Check the coolant levels and look for any leaks in the cooling system.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the ignition is turned off.
Gather tools: gloves, a flashlight, and a vacuum cleaner.

2. Inspect and Replace Cabin Air Filter

Locate the cabin air filter: Usually found behind the glove box.
Remove the glove box: Unscrew or unclip any fasteners holding it in place.
Take out the old filter: Pull the filter out gently, noting its orientation.
Install the new filter: Ensure it is oriented correctly and push it back into place.
Reassemble the glove box: Secure it with screws or clips.

3. Check for Fluid Leaks

Perform a visual inspection: Look underneath the car for any signs of fluid leaks (coolant, oil).
Use a flashlight: Check around hoses and connections for wet spots or stains.
Fix any leaks: Replace faulty hoses or seals if necessary.

4. Inspect Tires

Check tire condition: Look for signs of uneven wear or overheating (bubbles or cracks).
Measure tire pressure: Inflate to the manufacturer’s recommended PSI if low.
Replace tires if necessary: If they are worn out or damaged, consider replacing all four tires.

5. Electrical System Inspection

Inspect wiring: Look for frayed wires or burnt connectors in the engine compartment.
Check for overheating components: Identify any components that feel excessively hot.
Replace damaged wiring: Use appropriate gauge wire and connectors for repairs.