why does my Tesla Model S Original (2012-2020) make a whining noise when accelerating?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

516 words

Problem Statement

Learn how to diagnose and fix whining noise during acceleration in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostics, 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 the electric motor or drivetrain components.
•Allow the vehicle to cool before inspecting the electric motor area.

Symptoms

•Whining noise increases with acceleration
•Noise decreases when decelerating or coasting
•Potential loss of power during acceleration
•Unusual vibrations felt through the floor or seat
•No warning lights illuminated on the dashboard

Diagnostic Steps

1
Perform a visual inspection of the undercarriage and electric motor area for any obvious signs of wear or damage.
2
Use Tesla's onboard diagnostics system to check for any error codes related to the drivetrain or electric motor.
3
Check the transmission fluid level and condition, if applicable, to ensure it is at the correct level and not contaminated.
4
Inspect the drive unit for any unusual wear, such as bearing noise or motor mount issues.
5
Listen to the noise with the vehicle in park and then in drive to determine if it is coming from the electric motor or the drivetrain.

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
•Fluid pump
•Torque wrench
•Diagnostic scanner

Parts Required

•Electric motor bearings (if necessary)
•Motor mounts (if necessary)
•Transmission fluid (if applicable)

Related Faults

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Diagnostic Steps

1
Perform a visual inspection of the undercarriage and electric motor area for any obvious signs of wear or damage.
2
Use Tesla's onboard diagnostics system to check for any error codes related to the drivetrain or electric motor.
3
Check the transmission fluid level and condition, if applicable, to ensure it is at the correct level and not contaminated.
4
Inspect the drive unit for any unusual wear, such as bearing noise or motor mount issues.
5
Listen to the noise with the vehicle in park and then in drive to determine if it is coming from the electric motor or the drivetrain.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Wear safety gloves and goggles.

2. Inspect and Address Electric Motor Noise

Step 1: Remove the rear underbody shield using a socket set to access the electric motor.
Step 2: Inspect the electric motor bearings for any signs of wear or damage. If the bearings are worn, they may need to be replaced.
Step 3: Check the electric motor mounts for any signs of deterioration. Replace if necessary.

3. Check and Replace Transmission Fluid (if applicable)

Step 1: Locate the transmission fluid reservoir and check the fluid level using the dipstick.
Step 2: If the fluid is low or contaminated, drain the old fluid using a fluid pump into a suitable container.
Step 3: Replace with the manufacturer-recommended transmission fluid type. Torque the drain plug to the manufacturer's specifications.

4. Test Drive

Step 1: Reinstall the underbody shield and secure it properly.
Step 2: Perform a test drive to ensure the whining noise has been resolved.