what does a burning smell from my Tesla Model S Original (2012-2020) mean

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

453 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

Discover the causes of a burning smell in Tesla Model S (2012-2020). Follow our diagnostic steps and solutions for safe repairs and maintenance.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the high-voltage battery before working on electrical components.
•Allow the vehicle to cool down before inspecting the battery or motor.

Symptoms

•Burning odor noticeable inside or outside the vehicle
•Warning lights illuminated on the dashboard
•Unusual noises from the motor or components
•Decreased performance or power loss
•Smoke or heat near battery or electric motor areas

Diagnostic Steps

1
Check for any diagnostic trouble codes (DTCs) using an OBD-II scanner specific to Tesla vehicles.
2
Inspect the battery pack for any signs of swelling, leakage, or damage.
3
Examine all high-voltage cables for fraying, discoloration, or signs of overheating.
4
Inspect the electric motor for unusual wear, damage, or overheating.
5
Verify the operation of the cooling system, including coolant levels and pump functionality.
6
Check the cabin air filter and HVAC system for blockages or malfunctions that could cause odors.

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
•Socket set
•Torque wrench
•Screwdrivers
•Multimeter
•Safety gloves and glasses

Parts Required

•High-voltage cables (if damaged)
•Cabin air filter
•Electric motor (if necessary)
•Battery components (if necessary)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check for any diagnostic trouble codes (DTCs) using an OBD-II scanner specific to Tesla vehicles.
2
Inspect the battery pack for any signs of swelling, leakage, or damage.
3
Examine all high-voltage cables for fraying, discoloration, or signs of overheating.
4
Inspect the electric motor for unusual wear, damage, or overheating.
5
Verify the operation of the cooling system, including coolant levels and pump functionality.
6
Check the cabin air filter and HVAC system for blockages or malfunctions that could cause odors.

Solution

1. Preparation

Ensure the vehicle is parked in a safe, well-ventilated area.
Disconnect the high-voltage battery before starting any repair work.
Gather tools and safety equipment, including gloves and safety glasses.

2. Inspect and Replace Battery Components

Inspect Battery Pack:
- Remove the underbody cover to access the battery pack.
- Look for signs of damage or overheating.
Replace Damaged Components:
- If damage is found, contact Tesla service for battery replacement as this process requires specialized knowledge.

3. Examine and Repair High-Voltage Cables

Visual Inspection:
- Check all high-voltage cables for any signs of wear or overheating.
Repair/Replace Cables:
- If damaged, carefully disconnect and replace affected cables using OEM parts.

4. Assess Electric Motor

Visual Inspection:
- Remove the motor cover and inspect for signs of overheating or debris buildup.
Motor Replacement:
- If any issues are found, contact Tesla service for motor replacement.

5. Check Cooling System

Inspect Coolant Levels:
- Open the coolant reservoir and ensure proper levels.
Replace Coolant:
- If low, add the recommended type of coolant and ensure no leaks are present.

6. HVAC and Cabin Filter Maintenance

Filter Replacement:
- Remove the cabin air filter cover and replace the filter if it shows signs of blockage or odor.

Tools Required:

OBD-II scanner
Socket set
Torque wrench
Screwdrivers
Multimeter
Safety gloves and glasses

Parts Required:

High-voltage cables (if damaged)
Cabin air filter
Electric motor (if necessary)
Battery components (if necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the high-voltage battery before working on electrical components.
Allow the vehicle to cool down before inspecting the battery or motor.