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Home/Cars/Tesla/Model S/Plaid/Refresh (2021-present)/how to fix a differential noise on Tesla Model S Plaid/Refresh (2021-present)?

how to fix a differential noise on Tesla Model S Plaid/Refresh (2021-present)?

Tesla Model S Plaid/Refresh (2021-present)

Severity: mediumDifficulty: medium2-4 hours
3 min read
509 words

Problem Statement

Learn how to diagnose and fix differential noise in Tesla Model S Plaid (2021-present). Step-by-step guide with diagnostic procedures and repair instructions.

Component
Transmission
Repair Time
2-4 hours

Safety Warnings

  • ⚠Ensure the vehicle is on a flat surface and securely supported before beginning work.
  • ⚠Disconnect the 12V battery to avoid electrical hazards.

Symptoms

  • •Whining noise during acceleration or deceleration
  • •Grinding noise when turning
  • •Clunking sound during gear engagement
  • •Unusual vibration in the cabin while driving
  • •Increased cabin noise at higher speeds

Diagnostic Steps

  1. 1Visual Inspection: Check for any visible signs of damage or leaks around the differential area.
  2. 2Listen for Noise: Drive the vehicle to determine under what conditions the noise occurs (e.g., turning, accelerating).
  3. 3Check Fluid Levels: Inspect the differential fluid level and condition; look for contamination or metallic particles.
  4. 4Test Drive: Conduct a test drive to replicate the noise, paying attention to speed and steering input.
  5. 5Scan for Error Codes: Use an OBD-II scanner to check for any related error codes that may indicate differential issues.

Solution

Solution

1. Preparation

  • Tools Required:
    • Floor jack and jack stands
    • Socket set
    • Torque wrench
    • Differential fluid pump
    • OBD-II scanner
  • Safety Warnings:
    • Ensure the vehicle is on a flat surface and securely supported before beginning work.
    • Disconnect the 12V battery to avoid electrical hazards.

2. Drain Differential Fluid

  1. Position the vehicle on jack stands and remove the rear wheels for better access.
  2. Locate the differential drain plug; use a socket to remove it.
  3. Allow the fluid to completely drain into a suitable container.

3. Inspect Differential Components

  1. Remove the differential cover if necessary, using a socket set.
  2. Inspect the ring and pinion gears for wear or damage.
  3. Check bearings and seals for signs of excessive wear or play.

4. Replace Differential Fluid

  1. Clean the differential cover and replace the gasket if necessary.
  2. Reinstall the differential cover, ensuring it is torqued to manufacturer specifications.
  3. Use a differential fluid pump to refill with the recommended fluid type (e.g., Tesla-approved gear oil).
  4. Replace the drain plug and torque it to specification.

5. Reassemble and Test

  1. Reinstall the rear wheels and lower the vehicle.
  2. Reconnect the 12V battery.
  3. Conduct a test drive to ensure the noise has been resolved.

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

  • Floor jack and jack stands
  • Socket set
  • Torque wrench
  • Differential fluid pump
  • OBD-II scanner

Parts Required

  • Differential fluid (Tesla-approved gear oil)
  • Differential gasket (if necessary)

Additional Information

Component

Transmission

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

2 items

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