why does my Tesla Model S Original (2012-2020) have a loud buzzing noise when driving?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

520 words

Problem Statement

Learn how to diagnose and fix a loud buzzing noise in 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 12V battery before working on electrical components.
•Allow the vehicle to cool down before inspecting any components near the motor.

Symptoms

•Loud buzzing noise during driving
•Possible vibrations felt in the cabin
•Noise varies with speed of the vehicle
•Noise occurs when accelerating or decelerating
•Intermittent noise that may stop after a certain speed

Diagnostic Steps

1
Inspect the tires for uneven wear or damage that could cause noise.
2
Check for loose or damaged underbody panels or shields.
3
Examine wheel bearings for play or wear by lifting the vehicle and spinning the wheels.
4
Verify that the electric motor is securely mounted and not causing vibrations.
5
Use an OBD-II scanner to check for any related fault codes.
6
Test the drive unit for abnormal sounds while stationary.

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

•Tire pressure gauge
•Tire iron
•Socket set
•Torque wrench
•Hydraulic jack
•Jack stands
•Bearing puller set
•OBD-II scanner

Parts Required

•Replacement tires (if damaged)
•Underbody panel fasteners (if loose or broken)
•Wheel bearings (if worn)

Related Faults

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Diagnostic Steps

1
Inspect the tires for uneven wear or damage that could cause noise.
2
Check for loose or damaged underbody panels or shields.
3
Examine wheel bearings for play or wear by lifting the vehicle and spinning the wheels.
4
Verify that the electric motor is securely mounted and not causing vibrations.
5
Use an OBD-II scanner to check for any related fault codes.
6
Test the drive unit for abnormal sounds while stationary.

Solution

1. Preparation

Gather tools and parts needed.
Park the vehicle on a level surface and ensure it's in "Park" mode.
Disconnect the 12V battery to prevent electrical issues.

2. Tire Inspection

Sub-steps:
1. Visually inspect all four tires for signs of damage or uneven wear.
2. Check tire pressure against manufacturer specifications.
3. Rotate or replace tires if necessary.
Tools Required: Tire pressure gauge, tire iron (if replacing).

3. Underbody Inspection

Sub-steps:
1. Raise the vehicle using a hydraulic jack and secure it with jack stands.
2. Inspect underbody panels and shields for loose fasteners or damage.
3. Tighten or replace any loose or damaged components.
Tools Required: Socket set, torque wrench.

4. Wheel Bearing Check

Sub-steps:
1. With the vehicle lifted, grasp each wheel at 12 and 6 o'clock positions.
2. Wiggle the wheel to check for play; excessive movement indicates a failing bearing.
3. Replace any faulty wheel bearings.
Tools Required: Torque wrench, bearing puller set.

5. Drive Unit Inspection

Sub-steps:
1. Inspect the mounting points of the drive unit for any looseness.
2. Start the vehicle and listen for abnormal sounds while stationary.
3. If noise persists, consult a service manual for specific disassembly and inspection procedures.
Safety Warnings: Ensure the vehicle is in "Park" and the wheels are blocked.