why does my Tesla Model S Original (2012-2020) have a clunking noise when I shift?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

544 words

Problem Statement

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

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Ensure the vehicle is securely lifted and supported before working underneath.

Symptoms

•Clunking noise during gear shifts
•Harsh or rough shifting sensations
•Possible vibration felt when shifting
•Unusual sounds when accelerating or decelerating
•Intermittent loss of power during shifts

Diagnostic Steps

1
Inspect the vehicle's drive unit for any visible signs of damage or wear.
2
Use an OBD-II scanner to check for any error codes related to the drivetrain or transmission.
3
Examine the transmission fluid level and condition; look for signs of contamination or low fluid levels.
4
Check the motor mounts for wear or damage, which may cause excessive movement and noise during shifts.
5
Test drive the vehicle to reproduce the clunking noise and note specific conditions (e.g., speed, acceleration).
6
Inspect the CV joints and axles for any signs of wear or damage that could contribute to clunking noises.

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
•Torque wrench
•Fluid pump
•Jack and jack stands

Parts Required

•Transmission fluid
•Motor mounts
•CV joints or axles (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the vehicle's drive unit for any visible signs of damage or wear.
2
Use an OBD-II scanner to check for any error codes related to the drivetrain or transmission.
3
Examine the transmission fluid level and condition; look for signs of contamination or low fluid levels.
4
Check the motor mounts for wear or damage, which may cause excessive movement and noise during shifts.
5
Test drive the vehicle to reproduce the clunking noise and note specific conditions (e.g., speed, acceleration).
6
Inspect the CV joints and axles for any signs of wear or damage that could contribute to clunking noises.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a flat surface and secure it with wheel chocks.
Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Fluid

Sub-steps:
1. Locate the transmission fluid reservoir.
2. Remove the drain plug and drain the old fluid into a suitable container.
3. Inspect the old fluid for metal shavings or discoloration.
4. Replace with new transmission fluid as specified by the manufacturer (ensure proper type and viscosity).
5. Reinstall the drain plug and torque it to the manufacturer’s specifications.

3. Inspect Motor Mounts

Sub-steps:
1. Locate the motor mounts and visually inspect them for cracks or excessive wear.
2. Use a jack to lift the motor slightly and check for excessive play in the mounts.
3. If damaged, remove the old motor mounts using appropriate socket sizes.
4. Install new motor mounts and torque to manufacturer specifications.

4. Inspect and Replace CV Joints/Axles

Sub-steps:
1. Lift the vehicle using a jack and secure it with jack stands.
2. Remove the wheel to access the CV joints and axles.
3. Inspect the CV boots for any tears or leaks; replace if necessary.
4. If any components are damaged, remove the old CV joint/axle and install the new one, ensuring proper torque on all fasteners.