how to get rid of Tesla Model S Original (2012-2020) humming noise at high speeds?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

545 words

Problem Statement

Learn how to diagnose and fix humming noise at high speeds in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Suspension

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always use jack stands when working under a vehicle.
•Disconnect the 12V battery before working on electrical components to avoid shorts.

Symptoms

•Humming noise increases with vehicle speed
•Noise may become more pronounced during acceleration
•Vibration felt in the steering wheel or cabin
•Decreased handling stability at higher speeds
•Possible uneven tire wear observed

Diagnostic Steps

1
Inspect tires for uneven wear patterns and proper inflation.
2
Check for loose or damaged wheel bearings by performing a visual inspection and wobble test.
3
Drive the vehicle at varying speeds to identify if the noise changes with acceleration or deceleration.
4
Inspect the drivetrain components, including the motor mounts and differential, for signs of wear or damage.
5
Use a stethoscope or mechanic’s listening device to pinpoint the source of the noise while the vehicle is in motion.

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

•Jack stands
•Tire pressure gauge
•Torque wrench
•Stethoscope
•Tire rotation tool

Parts Required

•Tires (if replacement is necessary)
•Wheel bearings (if worn)
•Motor mounts (if damaged)

Related Faults

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Diagnostic Steps

1
Inspect tires for uneven wear patterns and proper inflation.
2
Check for loose or damaged wheel bearings by performing a visual inspection and wobble test.
3
Drive the vehicle at varying speeds to identify if the noise changes with acceleration or deceleration.
4
Inspect the drivetrain components, including the motor mounts and differential, for signs of wear or damage.
5
Use a stethoscope or mechanic’s listening device to pinpoint the source of the noise while the vehicle is in motion.

Solution

1. Preparation

Tools Required: Jack stands, tire pressure gauge, torque wrench, stethoscope, tire rotation tool.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the 12V battery for safety if working on electrical components.

2. Tire Inspection and Rotation

Sub-steps:
1. Use a jack to lift the vehicle and secure it with jack stands.
2. Remove the wheels and inspect tire tread for uneven wear.
3. Check tire pressure and inflate to the manufacturer-recommended PSI if necessary.
4. Rotate tires if uneven wear is present to promote even wear.
5. Reinstall wheels and torque lug nuts to the specified torque value (usually around 129 lb-ft for Model S).

3. Wheel Bearing Inspection

Sub-steps:
1. With the vehicle raised, grasp the tire at 12 and 6 o'clock positions and wiggle to check for play.
2. If play is detected, remove the wheel and brake caliper to access the wheel bearing.
3. Inspect the bearing for damage and replace if necessary by extracting the old bearing and installing a new one.

4. Drivetrain Inspection

Sub-steps:
1. Inspect motor mounts for signs of cracking or wear.
2. Check the differential for any leaks and listen for unusual noises when the vehicle is in motion.
3. If the differential is noisy or damaged, consider replacing it.