why does my Tesla Model S Original (2012-2020) have a burning smell

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

504 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 a burning smell in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is turned off and parked on a level surface.
•Disconnect the high-voltage battery before working on electrical components.
•Always disconnect the high-voltage battery before working on electrical systems.
•Allow the vehicle to cool before inspecting brake components to avoid burns.

Symptoms

•Burning smell, possibly resembling burnt plastic or rubber
•Warning lights illuminated on the dashboard
•Reduced performance or power output
•Unusual noises from the motor or battery pack
•Increased temperature reading on the display

Diagnostic Steps

1
Inspect the vehicle for any visible signs of fluid leaks, especially around electrical components and the battery.
2
Scan the vehicle’s onboard computer for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
3
Check the state of charge (SoC) of the battery and look for any unusual temperature readings.
4
Inspect the wiring harness and connectors for signs of damage or overheating.
5
Examine the brake system for any signs of excessive wear or overheating, including brake pads and rotors.
6
Review the vehicle’s service history for any past electrical or thermal issues.

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
•Multimeter
•Socket set
•Jack stands

Parts Required

•Replacement wiring or connectors (if damaged)
•Brake pads and rotors (if worn)
•Hoses or seals (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 vehicle for any visible signs of fluid leaks, especially around electrical components and the battery.
2
Scan the vehicle’s onboard computer for any diagnostic trouble codes (DTCs) using an OBD-II scanner.
3
Check the state of charge (SoC) of the battery and look for any unusual temperature readings.
4
Inspect the wiring harness and connectors for signs of damage or overheating.
5
Examine the brake system for any signs of excessive wear or overheating, including brake pads and rotors.
6
Review the vehicle’s service history for any past electrical or thermal issues.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, jack stands.
Safety Warning: Ensure the vehicle is turned off and parked on a level surface. Disconnect the high-voltage battery before working on electrical components.

2. Inspect and Repair Electrical Components

Sub-steps:
- Remove the vehicle's front trunk lining to access wiring.
- Visually inspect wiring for damage, burnt insulation, or melted connectors.
- Use a multimeter to check for continuity in affected wires.
- Replace any damaged wiring or connectors with OEM parts.

3. Check and Replace Brake Components

Sub-steps:
- Lift the vehicle using a jack and secure it with jack stands.
- Remove the wheel to access the brake assembly.
- Inspect brake pads and rotors for signs of overheating or excessive wear.
- Replace worn brake pads or rotors with OEM parts if necessary.

4. Address Fluid Leaks

Sub-steps:
- Identify the source of any fluid leaks observed during the inspection.
- Replace any damaged hoses or seals related to coolant or lubricant systems.
- Ensure all fluids are at the proper levels and top off as needed with manufacturer-recommended fluids.