my Tesla Model S Original (2012-2020) has a whirring noise from the rear what’s causing it?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

504 words

Problem Statement

Learn how to diagnose and fix a whirring noise from the rear of your Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the high-voltage battery before working on electric components.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Whirring noise from the rear, especially during acceleration or at specific speeds
•Possible vibrations felt in the cabin
•Decreased performance or response during acceleration
•Unusual sounds when turning or navigating bumps
•No warning lights illuminated on the dashboard

Diagnostic Steps

1
Inspect the rear tires for uneven wear or damage that could cause noise.
2
Use an OBD-II scanner to check for any logged error codes related to the drivetrain or suspension.
3
Visually inspect the rear suspension components for any signs of wear or damage, such as bushings, control arms, or shocks.
4
Check the fluid levels in the rear drive unit to ensure they are within specifications.
5
Perform a test drive to pinpoint the noise's location and conditions under which it occurs.

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
•Fluid extraction tool
•Socket set
•Torque wrench
•Pry bar

Parts Required

•Tesla gear oil
•Replacement bushings/control arms/shocks (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the rear tires for uneven wear or damage that could cause noise.
2
Use an OBD-II scanner to check for any logged error codes related to the drivetrain or suspension.
3
Visually inspect the rear suspension components for any signs of wear or damage, such as bushings, control arms, or shocks.
4
Check the fluid levels in the rear drive unit to ensure they are within specifications.
5
Perform a test drive to pinpoint the noise's location and conditions under which it occurs.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Put the vehicle on a level surface and engage the parking brake.
Disconnect the high-voltage battery system for safety.

2. Inspect and Replace Drive Unit Fluid

Sub-steps:
- Remove the access cover to the rear drive unit.
- Use a fluid extraction tool to remove old fluid from the drive unit.
- Replace with the manufacturer's recommended fluid (Tesla gear oil).
- Reinstall the access cover securely.
Tools Required: Fluid extraction tool, new gear oil, wrench set.

3. Replace Worn Suspension Components

Sub-steps:
- Raise the rear of the vehicle using a jack and secure with jack stands.
- Remove the rear wheel to access suspension components.
- Inspect and replace any worn bushings, control arms, or shocks as necessary.
- Reassemble the suspension components and torque bolts to manufacturer specifications.
Tools Required: Socket set, torque wrench, pry bar.

4. Reassemble and Lower Vehicle

Sub-steps:
- Reinstall the rear wheel and tighten lug nuts to the specified torque.
- Lower the vehicle back to the ground.
- Reconnect the high-voltage battery system.
Tools Required: Torque wrench.