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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

629 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 symptoms, diagnostic steps, 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.

Symptoms

•Burning smell noticeable during or after driving
•Possible overheating of components (e.g., brakes or electric motor)
•Warning lights on the dashboard, such as the brake or powertrain warning
•Reduced performance or loss of power
•Smoke or visible signs of damage under the hood or around wheels

Diagnostic Steps

1
Inspect for visible damage: Check for any signs of burnt wires, melted insulation, or damaged components under the hood and around the battery.
2
Check brake components: Inspect brake pads and rotors for excessive wear or overheating; look for discoloration or cracks.
3
Scan for error codes: Use an OBD-II scanner to check for any logged error codes related to the vehicle’s powertrain or battery system.
4
Monitor battery temperature: Use the vehicle's diagnostics to check the battery temperature; overheating could indicate a problem with the battery management system.
5
Test drive the vehicle: Take the vehicle for a short drive while monitoring for any unusual sounds or smells, paying attention to braking performance.
6
Check cabin air filter: Inspect and replace the cabin air filter if it is clogged or burnt, as it can contribute to odor 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
•Socket set
•Multimeter
•Safety gloves
•Eye protection

Parts Required

•Brake pads (if replacement is necessary)
•Cabin air filter (if replacement is necessary)
•Wiring harnesses (if damage is found)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Symptoms

•Burning smell noticeable during or after driving

•Possible overheating of components (e.g., brakes or electric motor)

•Warning lights on the dashboard, such as the brake or powertrain warning

•Reduced performance or loss of power

•Smoke or visible signs of damage under the hood or around wheels

Diagnostic Steps

1
Inspect for visible damage: Check for any signs of burnt wires, melted insulation, or damaged components under the hood and around the battery.
2
Check brake components: Inspect brake pads and rotors for excessive wear or overheating; look for discoloration or cracks.
3
Scan for error codes: Use an OBD-II scanner to check for any logged error codes related to the vehicle’s powertrain or battery system.
4
Monitor battery temperature: Use the vehicle's diagnostics to check the battery temperature; overheating could indicate a problem with the battery management system.
5
Test drive the vehicle: Take the vehicle for a short drive while monitoring for any unusual sounds or smells, paying attention to braking performance.
6
Check cabin air filter: Inspect and replace the cabin air filter if it is clogged or burnt, as it can contribute to odor issues.

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, multimeter, safety gloves, and eye protection.
Disconnect the battery to ensure safety before beginning any electrical work.

2. Inspect and Replace Brake Components

Remove Wheel Assembly:
- Loosen lug nuts, raise the vehicle using a jack, and secure it with jack stands.
- Remove the wheel to access the brake components.
Inspect Brake Pads and Rotors:
- Check for signs of wear, overheating, or damage.
- If necessary, replace worn brake pads with new ones according to manufacturer specifications.
Reassemble Wheel:
- Reinstall the wheel and lug nuts, tightening to the manufacturer's torque specifications.
- Lower the vehicle and repeat on other wheels if needed.

3. Electrical Inspection

Inspect Wiring and Connectors:
- Visually examine wiring harnesses and connectors for signs of burns or damage.
- Repair or replace any damaged wires with appropriate gauge wire.
Test Battery Management System:
- Use a multimeter to test battery connections and terminals for voltage drops or irregular readings.
- Address any issues found, possibly requiring replacement of the battery or management components.

4. Cabin Air Filter Replacement

Locate Cabin Air Filter:
- Refer to the owner's manual for the cabin air filter location; typically found behind the glove compartment.
Remove and Replace Filter:
- Remove the old filter and clean the housing area.
- Install a new cabin air filter, ensuring it is seated correctly.