my Tesla Model S Original (2012-2020) has a burning smell when driving

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

581 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

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

Symptoms

•Burning smell noticeable inside or outside the vehicle
•Possible overheating of brakes or electric motor
•Reduced performance or acceleration
•Warning lights illuminated on the dashboard
•Smoke visible from under the vehicle or around the wheels

Diagnostic Steps

1
Inspect the brake system for signs of overheating, such as burnt brake pads or smoke.
2
Check for any visible damage to electrical wiring or components, particularly around the battery and motor.
3
Use the vehicle's diagnostic menu to check for error codes related to the motor or electrical system.
4
Inspect the tires for unusual wear or damage that might cause friction.
5
Assess the coolant levels and check for leaks in the cooling system.

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

•Socket set
•Torque wrench
•Brake rotor puller (if applicable)
•Wire strippers
•Soldering iron
•Coolant pressure tester
•Hose clamp pliers

Parts Required

•New brake pads
•New brake rotors (if needed)
•Replacement wires/connectors
•Tesla-approved coolant
•Replacement hoses (if needed)
•Replacement electric motor (if needed)

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Diagnostic Steps

1
Inspect the brake system for signs of overheating, such as burnt brake pads or smoke.
2
Check for any visible damage to electrical wiring or components, particularly around the battery and motor.
3
Use the vehicle's diagnostic menu to check for error codes related to the motor or electrical system.
4
Inspect the tires for unusual wear or damage that might cause friction.
5
Assess the coolant levels and check for leaks in the cooling system.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle's battery for safety.
Ensure the vehicle is parked on a level surface and secured.

2. Inspect and Replace Brake Components

Raise the vehicle using a jack and secure with jack stands.
Remove the wheel to access the brake assembly.
Inspect brake pads for wear; replace if they show signs of burning or excessive wear.
- Tools: Socket set, torque wrench
- Parts: New brake pads
Inspect the brake rotors for scoring and overheating; replace if necessary.
- Tools: Brake rotor puller (if applicable)
- Parts: New brake rotors (if needed)
Reassemble the brake assembly and torque bolts to manufacturer specifications.

3. Check Electrical Components

Examine the wiring harnesses for any signs of damage, such as fraying or melting.
Replace any damaged wiring or connectors.
- Tools: Wire strippers, soldering iron, heat shrink tubing
- Parts: Replacement wires/connectors as needed
Inspect the electric motor for signs of overheating; if damaged, consider replacement.
- Tools: Various hand tools for motor access
- Parts: Replacement electric motor (if needed)

4. Inspect and Repair Cooling System

Check the coolant levels in the thermal management system; refill if low with Tesla-approved coolant.
- Tools: Coolant pressure tester
- Parts: Tesla-approved coolant
Inspect for leaks in coolant lines; repair or replace any damaged hoses.
- Tools: Hose clamp pliers
- Parts: Replacement hoses as necessary