why does my Tesla Model S Original (2012-2020) have a weird smell when I drive

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

465 words

Problem Statement

Discover the causes and solutions for weird smells while driving your Tesla Model S (2012-2020). Step-by-step diagnostic and repair guide included.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to avoid electric shock.
•Allow the vehicle to cool before inspecting any components that may have been under load.

Symptoms

•Weird or burning smell while driving
•Possible electrical odor resembling burnt plastic
•Smell intensifies during acceleration or when using HVAC
•No warning lights illuminated on the dashboard
•Intermittent electrical issues or malfunctions (e.g., flickering lights)

Diagnostic Steps

1
Inspect the cabin air filter for debris or contamination.
2
Check for any visible signs of burning or melting components in the under-hood area.
3
Scan the vehicle's systems using a Tesla diagnostic tool for any error codes related to the HVAC or electrical systems.
4
Examine the wiring harness and connectors for damage or wear.
5
Inspect the battery pack and its components for any signs of overheating or failure.

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

•Tesla diagnostic tool
•Screwdriver set
•Multimeter

Parts Required

•Cabin air filter (OEM recommended)
•Electrical connectors (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect the cabin air filter for debris or contamination.
2
Check for any visible signs of burning or melting components in the under-hood area.
3
Scan the vehicle's systems using a Tesla diagnostic tool for any error codes related to the HVAC or electrical systems.
4
Examine the wiring harness and connectors for damage or wear.
5
Inspect the battery pack and its components for any signs of overheating or failure.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and turned off.
Disconnect the 12V battery to prevent any electrical shorts while inspecting.

2. Inspect Cabin Air Filter

Remove the cabin air filter cover (usually located behind the glove compartment).
Pull out the cabin air filter and check for dirt, leaves, or debris.
If dirty, replace the filter with a new one (OEM recommended).

3. Examine Electrical Components

Reconnect the 12V battery.
Visually inspect wiring and connectors in the engine bay, focusing on areas near high-voltage components.
Look for any signs of melting insulation or damaged wires.

4. Check Battery Pack

If the smell persists, have a qualified technician inspect the battery pack for overheating or damage.
This may require specialized equipment to safely access the battery components.

5. HVAC System Inspection

Check the HVAC system for any signs of burnt components or malfunction.
If necessary, remove the HVAC blower motor and inspect for any obstruction or signs of wear.