why does my Tesla Model S Plaid/Refresh (2021-present) have a weird noise from the suspension?

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 unusual suspension noise in Tesla Model S Plaid. 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 battery before working on electrical systems.
•Always ensure the vehicle is securely supported by jack stands before working underneath.

Symptoms

•Unusual clunking or knocking sounds when driving over bumps
•Grinding noise when turning or changing direction
•Increased vibrations felt through the steering wheel
•Noise present during acceleration or deceleration
•Possible warning messages related to the suspension system

Diagnostic Steps

1
Inspect the suspension components visually for any signs of damage or wear.
2
Lift the vehicle using a hydraulic jack and secure it with jack stands to gain access to the suspension.
3
Wiggle and move each suspension component (e.g., control arms, struts, sway bar links) to check for play or abnormal movement.
4
Use an OBD-II scanner to check for any error codes related to the suspension system.
5
Perform a road test to replicate the noise while observing under various driving conditions.

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

•Hydraulic jack
•Jack stands
•Socket set
•Torque wrench
•Strut spring compressor

Parts Required

•Control arms (if damaged)
•Struts (if leaking)
•Sway bar links (if worn)

Related Faults

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Diagnostic Steps

1
Inspect the suspension components visually for any signs of damage or wear.
2
Lift the vehicle using a hydraulic jack and secure it with jack stands to gain access to the suspension.
3
Wiggle and move each suspension component (e.g., control arms, struts, sway bar links) to check for play or abnormal movement.
4
Use an OBD-II scanner to check for any error codes related to the suspension system.
5
Perform a road test to replicate the noise while observing under various driving conditions.

Solution

1. Preparation

Gather tools and parts required for the suspension repair.
Ensure the vehicle is on a level surface and has been powered off.
Disconnect the battery to prevent any electrical issues.

2. Lift the Vehicle

Using a hydraulic jack, lift the front or rear of the vehicle as needed.
Secure the vehicle with jack stands to ensure stability.

3. Inspect and Replace Components

Control Arm Inspection:
- Check the bushings for wear; if cracked or deteriorated, replace the control arms.
- Tools Required: Socket set, torque wrench.
- Torque specifications for control arm bolts should be followed as per service manual (usually around 70-90 ft-lbs).
Strut Inspection:
- Check for leaks or damage on the struts. If there’s evidence of oil leakage, replace the struts.
- Tools Required: Strut spring compressor, socket set, torque wrench.
- Ensure to torque the strut mount bolts to the manufacturer’s specifications (usually around 40-50 ft-lbs).
Sway Bar Links:
- Inspect for any looseness or damage. Replace if necessary.
- Tools Required: Socket set, torque wrench.
- Torque sway bar link bolts to manufacturer specifications (typically 30-40 ft-lbs).

4. Reassemble and Lower Vehicle

Reinstall all components in reverse order of removal.
Lower the vehicle carefully from the jack stands and jack.

5. Final Inspection

Conduct a final inspection of the suspension components to ensure everything is securely fastened.
Reconnect the battery.