my Tesla Model S Original (2012-2020) makes a whirring noise when accelerating

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

495 words

Problem Statement

Learn how to diagnose and fix whirring noise during acceleration 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 12V battery before working on electrical systems.
•Allow the vehicle to cool before performing any maintenance on the drive unit.

Symptoms

•Whirring noise during acceleration
•Increased vibrations felt in the cabin
•Potential loss of power during acceleration
•Unusual sounds from the drivetrain when decelerating
•No error messages displayed on the dashboard

Diagnostic Steps

1
Inspect the drive unit for any visible damage or loose components.
2
Use an OBD-II scanner to check for any hidden error codes related to the drive system.
3
Test the electric motor's performance using the Tesla diagnostic tool.
4
Check the condition of the transmission fluid (if applicable) and its level.
5
Inspect the wheel bearings and suspension components for wear or damage.
6
Evaluate the battery performance and voltage levels during acceleration.

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
•Fluid pump
•Multimeter

Parts Required

•Replacement bearings (if needed)
•Transmission fluid (specific to Tesla Model S)

Related Faults

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Diagnostic Steps

1
Inspect the drive unit for any visible damage or loose components.
2
Use an OBD-II scanner to check for any hidden error codes related to the drive system.
3
Test the electric motor's performance using the Tesla diagnostic tool.
4
Check the condition of the transmission fluid (if applicable) and its level.
5
Inspect the wheel bearings and suspension components for wear or damage.
6
Evaluate the battery performance and voltage levels during acceleration.

Solution

1. Preparation

Gather necessary tools and components.
Disconnect the vehicle's 12V battery to ensure safety while working on electrical components.

2. Inspect Drive Unit

Remove the cover from the drive unit.
Check for any signs of wear, damage, or abnormal wear patterns on the gear teeth.
Inspect the motor mounts to ensure they are secure and not cracked.

3. Replace Worn Components

If any damaged parts are identified, such as bearings or seals:
1. Use a socket set to remove the affected components.
2. Replace them with new OEM parts, ensuring to follow the torque specifications (usually around 25-30 Nm for small components).
3. Reassemble the drive unit cover securely.

4. Fluid Check and Replacement

If transmission fluid is low or dirty:
1. Remove the fill plug using a socket set.
2. Use a fluid pump to fill the transmission with the recommended fluid type (refer to the Tesla service manual for specifications).
3. Ensure that the fluid level is at the correct height.

5. Reconnect Battery

Once all repairs and checks are completed, reconnect the 12V battery and ensure all connections are secure.