why is my Tesla Model S Plaid/Refresh (2021-present) making a whining noise when driving

Solution

1. Preparation

• Tools Required: OBD-II scanner, jack and jack stands, socket set, torque wrench, safety glasses, and gloves.
• Safety Warnings: Disconnect the 12V battery and allow the vehicle to cool before working on any electrical components.

2. Addressing Drive Unit Issues

1. Jack Up the Vehicle: Securely jack up the vehicle and place it on jack stands.
2. Remove Underbody Panels: Use a socket set to remove any underbody panels that may obstruct access to the drive unit.
3. Inspect Drive Unit Mounts: Check the mounts for any signs of wear or damage, and replace if necessary.
4. Check for Fluid Leaks: Inspect for any fluid leaks around the drive unit and seals. Replace seals if leaks are found.

3. Wheel Bearing Inspection

1. Remove Wheels: Use a socket set to remove the lug nuts and take off the wheels.
2. Inspect Wheel Bearings: Check for play by grabbing the wheel and attempting to shake it. Replace any bearings that exhibit excessive play or grinding sounds.
3. Reassemble: Reattach wheels and torque lug nuts to the manufacturer’s specifications (usually around 100-120 lb-ft).

4. Noise Isolation (if necessary)

1. Test Drive Again: Conduct another test drive to determine if the noise persists.
2. Consult Tesla Service: If the noise continues and is not resolved through the above steps, contact Tesla Service for further diagnosis, as this may require specialized equipment or knowledge.