why does my Tesla Model S Plaid/Refresh (2021-present) make a knocking noise?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

518 words

Problem Statement

Learn how to diagnose and fix knocking 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

•Always ensure the vehicle is securely lifted and supported on jack stands before working underneath.
•Disconnect the battery before working on electrical components to avoid shock.

Symptoms

•Knocking noise from the front or rear of the vehicle
•Noise occurs during acceleration or deceleration
•Noise is more pronounced when turning
•Vibration felt through the steering wheel or chassis
•Potential warning lights illuminated on the dashboard

Diagnostic Steps

1
Inspect for loose components
2
Check wheel lug nut torque
3
Perform a road test
4
Scan for error codes using OBD-II scanner
5
Inspect suspension and steering components
6
Examine the drive unit

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

•Jack and jack stands
•Socket set
•Torque wrench
•OBD-II scanner

Parts Required

•Replacement suspension components (if damaged)

Related Faults

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Solution

1. Preparation

Tools Required: Jack and jack stands, socket set, torque wrench, OBD-II scanner.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Disconnect the 12V battery to avoid any electrical issues during inspection.

2. Inspect and Tighten Loose Components

Sub-steps:
1. Lift the vehicle using a jack and secure with jack stands.
2. Inspect all accessible undercarriage components, including the exhaust system and suspension.
3. Tighten any loose bolts or fasteners to the specified torque values (refer to vehicle service manual).

3. Replace Worn Suspension Components

Sub-steps:
1. Identify any worn or damaged suspension parts (e.g., bushings, control arms).
2. Use a socket set to remove the worn components.
3. Install new components, ensuring they are torqued to manufacturer specifications.
4. Reassemble any removed components and lower the vehicle.

4. Drive Unit Inspection

Sub-steps:
1. If the drive unit is suspected, carefully remove the protective covers as needed.
2. Inspect for any visible signs of wear or damage.
3. If necessary, consult a Tesla service center for professional inspection or replacement.