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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

551 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 the burning smell issue 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

•Disconnect the battery before working on electrical systems.
•Allow the vehicle to cool down before inspecting brake components.

Symptoms

•Burning smell while driving
•Reduced braking performance (if applicable)
•Warning lights on the dashboard
•Unusual noises from the electric motor or components
•Increased heat in the cabin or near the wheels

Diagnostic Steps

1
Inspect the brake components for signs of wear or overheating, including pads and rotors.
2
Check for any electrical shorts or damaged wiring in the powertrain and battery system.
3
Use an OBD-II scanner to check for error codes related to the vehicle's electrical systems.
4
Inspect the high-voltage battery and connections for any signs of burning or damage.
5
Look for fluid leaks, especially brake fluid or coolant, that could indicate a problem.
6
Assess the condition of the tires for excessive wear or friction.

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

•Jack and jack stands
•Lug wrench
•Torque wrench
•Brake cleaner
•Multimeter
•Socket set
•Wire strippers and connectors

Parts Required

•Brake pads
•Brake rotors
•Electrical wiring (if damaged)
•Connectors (if corroded)

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Diagnostic Steps

1
Inspect the brake components for signs of wear or overheating, including pads and rotors.
2
Check for any electrical shorts or damaged wiring in the powertrain and battery system.
3
Use an OBD-II scanner to check for error codes related to the vehicle's electrical systems.
4
Inspect the high-voltage battery and connections for any signs of burning or damage.
5
Look for fluid leaks, especially brake fluid or coolant, that could indicate a problem.
6
Assess the condition of the tires for excessive wear or friction.

Solution

1. Preparation

Gather tools and parts needed for inspection.
Ensure the vehicle is parked on a level surface and powered off.
Allow the vehicle to cool down if driven recently.

2. Inspect and Replace Brake Components

Sub-steps:
1. Remove the wheel to access the brake assembly.
2. Inspect brake pads for thickness and signs of overheating (discoloration or melting).
3. Check brake rotors for warping or burning.
4. Replace any worn or damaged brake pads and rotors using a suitable replacement.
5. Reassemble the wheel and torque the lug nuts to the manufacturer's specifications.
Tools Required:
- Jack and jack stands
- Lug wrench
- Torque wrench
- Brake cleaner

3. Inspect Electrical System

Sub-steps:
1. Remove the frunk cover and inspect wiring for damage or burning.
2. Check all connectors for corrosion or loose connections.
3. Use a multimeter to check for continuity and proper voltage in wiring.
4. Repair or replace damaged wiring as necessary.
Tools Required:
- Multimeter
- Socket set
- Wire strippers and connectors

4. Check High-Voltage Battery

Sub-steps:
1. Access the battery compartment and visually inspect for any signs of damage or burning.
2. Ensure all connectors are secure and free of corrosion.
3. If damage is evident, contact a certified Tesla technician for replacement.
Tools Required:
- Safety gloves
- Insulated tools (for high-voltage components)