why does my Tesla Model S Original (2012-2020) make a whining noise when accelerating

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

491 words

Problem Statement

Learn how to diagnose and fix whining noise during acceleration in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Drivetrain

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on electrical systems.
•Ensure vehicle is on a flat surface and securely supported when raised.

Symptoms

•Whining noise audible during acceleration
•Noise intensity increases with speed
•Potential decrease in acceleration performance
•No warning lights illuminated on the dashboard
•Possible vibration felt through the floorboard

Diagnostic Steps

1
Inspect the drive unit for any visible damage or leaks.
2
Check the battery coolant levels and connections for any anomalies.
3
Scan the vehicle’s onboard diagnostics for any fault codes related to the drivetrain or motor.
4
Test drive the vehicle at various speeds to confirm the noise's consistency and conditions that trigger it.
5
Examine the motor mounts and transmission for signs of wear or damage.

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

•Socket set
•Torque wrench
•Pliers
•Jack
•Jack stands
•OBD-II scanner

Parts Required

•Motor mounts (if replacement is necessary)
•Battery coolant (if low)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the drive unit for any visible damage or leaks.
2
Check the battery coolant levels and connections for any anomalies.
3
Scan the vehicle’s onboard diagnostics for any fault codes related to the drivetrain or motor.
4
Test drive the vehicle at various speeds to confirm the noise's consistency and conditions that trigger it.
5
Examine the motor mounts and transmission for signs of wear or damage.

Solution

1. Preparation

Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the 12V battery to prevent any electrical shock or short circuits during repairs.

2. Inspect and Secure Drive Unit

Tools Required: Socket set, torque wrench
Inspect the drive unit for any loose bolts or signs of wear. Tighten any loose fasteners to the manufacturer's torque specifications.
Check for any fluid leaks around the drive unit and address any issues.

3. Examine Battery Cooling System

Tools Required: Pliers, socket set
Remove the battery cover using the appropriate tools.
Inspect the coolant lines and connections for leaks or blockages. Replace any damaged components.
Ensure that the coolant level is within specified limits and refill with Tesla-approved coolant if necessary.

4. Motor Mount Inspection and Replacement

Tools Required: Jack, jack stands, socket set
Raise the vehicle securely using a jack and jack stands.
Inspect the motor mounts for cracks or excessive wear. If damaged, remove the old mounts.
Install new motor mounts and torque to the specifications indicated in the service manual.

5. Reassemble and Reconnect

Reattach the battery cover and reconnect the 12V battery.
Ensure all tools are removed from the work area.