why does my Tesla Model S Original (2012-2020) make a whirring noise

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

549 words

Problem Statement

Learn how to diagnose and fix a whirring noise in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, 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 down before inspecting the battery or drive unit components.

Symptoms

•Whirring noise is audible when the vehicle is in motion or stationary.
•Noise increases with acceleration.
•Possible accompanying vibrations felt through the floor or steering wheel.
•Battery range may appear lower than usual.
•"Check Battery" warning light may appear on the dashboard.

Diagnostic Steps

1
Inspect the vehicle for any visible damage or loose components around the motor and drivetrain.
2
Use an OBD-II scanner to check for any error codes related to the electric motor or battery system.
3
Listen closely to identify if the noise originates from the front or rear of the vehicle.
4
Check the coolant levels and inspect for any leaks in the cooling system.
5
Inspect the drive unit for any signs of wear or damage, particularly the bearings.
6
Verify that all wheel bearings and tires are in good condition and properly inflated.

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
•Bearing puller
•Torque wrench

Parts Required

•Replacement bearings (if worn)
•Battery coolant (if low)

Related Faults

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Diagnostic Steps

1
Inspect the vehicle for any visible damage or loose components around the motor and drivetrain.
2
Use an OBD-II scanner to check for any error codes related to the electric motor or battery system.
3
Listen closely to identify if the noise originates from the front or rear of the vehicle.
4
Check the coolant levels and inspect for any leaks in the cooling system.
5
Inspect the drive unit for any signs of wear or damage, particularly the bearings.
6
Verify that all wheel bearings and tires are in good condition and properly inflated.

Solution

1. Preparation

Gather necessary tools and parts. Ensure the vehicle is parked on a level surface and engage the parking brake.
Disconnect the 12V battery to ensure safety while working on electrical components.

2. Inspect Drive Unit

Remove the underbody panel using a socket set to access the drive unit.
Visually inspect the drive unit for any signs of oil leaks or physical damage.
If the drive unit is damaged, prepare for a replacement by removing the electrical connectors and bolts securing it to the chassis.

3. Check and Replace Bearings (if necessary)

If wear is detected in the bearings, proceed to replace them:
- Remove the wheel assembly and brake caliper.
- Use a bearing puller to extract the old bearings from the hub.
- Install new bearings, ensuring they are properly seated.
- Reassemble the wheel assembly and torque bolts to manufacturer specifications.

4. Inspect and Refill Coolant

Check the coolant reservoir for the drive unit and battery cooling system.
If levels are low, top off with the specified coolant type (refer to the owner’s manual for the correct coolant specifications).
Inspect hoses for cracks or leaks and replace if necessary.

5. Reassemble and Test

Reattach any panels removed during the inspection and ensure all bolts are tightened to the specified torque.
Reconnect the 12V battery.
Start the vehicle and check for any abnormal noises or warnings.