why does my Tesla Model S Original (2012-2020) have a clunk when shifting

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

490 words

Problem Statement

Learn how to diagnose and fix clunking noise when shifting in Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, 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 systems.
•Ensure the vehicle is securely lifted and supported before working underneath.

Symptoms

•Clunking noise when shifting from park to drive or reverse
•Jerking motion during gear changes
•Delayed response when accelerating
•Unusual noises during low-speed maneuvers
•Possible vibrations felt through the chassis

Diagnostic Steps

1
Inspect the drivetrain components for visible damage or wear.
2
Scan the vehicle's onboard diagnostics (OBD) for any error codes related to the transmission or motor.
3
Check the motor mounts for signs of wear or damage.
4
Test the vehicle using the driving mode to replicate the clunking noise.
5
Inspect the transmission fluid level and condition.
6
Examine the differential for signs of excessive wear or play.

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
•OBD-II scanner
•Jack and jack stands

Parts Required

•Motor mounts (if damaged)
•Transmission fluid (if low or contaminated)

Related Faults

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Diagnostic Steps

1
Inspect the drivetrain components for visible damage or wear.
2
Scan the vehicle's onboard diagnostics (OBD) for any error codes related to the transmission or motor.
3
Check the motor mounts for signs of wear or damage.
4
Test the vehicle using the driving mode to replicate the clunking noise.
5
Inspect the transmission fluid level and condition.
6
Examine the differential for signs of excessive wear or play.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface and set to "Park."
Disconnect the vehicle from the power source to prevent any electrical hazards.
Gather tools and parts needed for the repair.

2. Inspect and Replace Motor Mounts

Sub-steps:
1. Remove the underbody shield (if applicable) using a socket set.
2. Locate and inspect the motor mounts for cracks or deterioration.
3. If damaged, remove the bolts securing the motor mounts using a torque wrench.
4. Replace with new motor mounts, ensuring proper alignment.
5. Torque the mount bolts to the manufacturer’s specifications (consult service manual for exact torque values).

3. Check Transmission Fluid

Sub-steps:
1. Locate the transmission fluid dipstick or access port.
2. Remove the dipstick and check the fluid level and condition (should be clean and reddish).
3. If low, add the appropriate type of transmission fluid as specified in the owner’s manual.
4. If contaminated, drain the transmission and replace the fluid with fresh fluid.

4. Inspect Differential

Sub-steps:
1. Lift the vehicle safely using jack stands.
2. Inspect the differential for leaks and excessive play in the output shafts.
3. If excessive play is found, consider replacing worn bearings or the entire differential unit.
4. Reassemble any components and ensure all fasteners are securely tightened.