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

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

541 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 and solutions for a burning smell after driving your Tesla Model S (2012-2020). Step-by-step diagnostic and repair guide included.

Affected Component

Electrical

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the high voltage battery before performing any work on the battery pack.
•Ensure the vehicle is powered down before inspecting electrical components.
•Ensure no power is running through the system when inspecting wiring.
•Always use jack stands when working under the vehicle.

Symptoms

•Burning smell noticeable after driving
•Possible overheating of the battery or motor
•Intermittent warning lights on the dashboard
•Reduction in driving range or performance
•Visible smoke or odor from the front or rear of the vehicle

Diagnostic Steps

1
Inspect the battery pack for any signs of damage or overheating.
2
Check the motor and inverter for any unusual heat or burnt components.
3
Scan the vehicle's onboard diagnostics using Tesla’s diagnostic tool or OBD-II scanner for error codes.
4
Inspect the wiring harness for any signs of wear, fraying, or short circuits.
5
Examine brake components for overheating, especially if the smell is accompanied by reduced braking performance.

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
•Flashlight
•Multimeter
•OBD-II scanner
•Jack
•Jack stands
•Lug wrench
•Torque wrench
•Dielectric grease

Parts Required

•Battery connectors (if damaged)
•Brake pads and rotors (if worn)

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Diagnostic Steps

1
Inspect the battery pack for any signs of damage or overheating.
2
Check the motor and inverter for any unusual heat or burnt components.
3
Scan the vehicle's onboard diagnostics using Tesla’s diagnostic tool or OBD-II scanner for error codes.
4
Inspect the wiring harness for any signs of wear, fraying, or short circuits.
5
Examine brake components for overheating, especially if the smell is accompanied by reduced braking performance.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and is powered off.
Allow the vehicle to cool down before beginning any inspection.
Gather necessary tools and parts.

2. Inspect Battery Pack

Step 1: Remove the underbody panel to access the battery pack.
Step 2: Visually inspect the battery for any signs of swelling, leaks, or damage.
Step 3: Check the connections for corrosion or looseness.
Tools Required: Socket set, flashlight.
Safety Warnings: Disconnect the high voltage battery before performing any work on the battery pack.

3. Check Motor and Inverter

Step 1: Locate the front motor and inverter assembly.
Step 2: Inspect for any burnt wires or connectors.
Step 3: Use a multimeter to check for continuity in the motor windings.
Tools Required: Multimeter, socket set.
Safety Warnings: Ensure the vehicle is powered down before inspecting electrical components.

4. Examine Wiring Harness

Step 1: Visually inspect the wiring harness for signs of wear or damage.
Step 2: Use dielectric grease on any exposed connections to prevent corrosion.
Tools Required: Wire cutters, electrical tape.
Safety Warnings: Ensure no power is running through the system when inspecting wiring.

5. Inspect Brake Components

Step 1: Remove the wheel to access brake components.
Step 2: Check brake pads and rotors for excessive wear or overheating.
Step 3: Replace any worn components and ensure calipers are functioning properly.
Tools Required: Jack, jack stands, lug wrench, torque wrench.
Safety Warnings: Always use jack stands when working under the vehicle.