how to fix knocking noise in Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

3-5 hours

Time

medium

Difficulty

medium

Severity

3 min read

569 words

Problem Statement

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

Affected Component

Suspension

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Always use jack stands when working under the vehicle to prevent injury.

Symptoms

•Knocking noise when driving over bumps or uneven surfaces
•Noise occurs during acceleration or deceleration
•Potential vibration felt through the steering wheel
•Unusual tire wear patterns
•Warning lights on the dashboard (if applicable)

Diagnostic Steps

1
Inspect the tires for uneven wear or damage.
2
Check for any loose or damaged components in the suspension system.
3
Perform a visual inspection of the drivetrain for any signs of wear or breakage.
4
Raise the vehicle and perform a physical inspection of the suspension components (e.g., bushings, struts, control arms).
5
Test drive the vehicle under different conditions to replicate the noise and pinpoint the source.

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
•Screwdrivers
•Pry bar

Parts Required

•Suspension bushings
•Struts or shocks (if needed)
•Control arms (if needed)
•Drive axles (if needed)
•Motor mounts (if needed)

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Diagnostic Steps

1
Inspect the tires for uneven wear or damage.
2
Check for any loose or damaged components in the suspension system.
3
Perform a visual inspection of the drivetrain for any signs of wear or breakage.
4
Raise the vehicle and perform a physical inspection of the suspension components (e.g., bushings, struts, control arms).
5
Test drive the vehicle under different conditions to replicate the noise and pinpoint the source.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery for safety.

2. Inspect and Replace Suspension Components

Raise the Vehicle
- Use a hydraulic jack to lift the vehicle and secure it with jack stands.
- Ensure the vehicle is stable before working underneath.
Check Suspension Bushings
- Inspect all control arm bushings for wear or damage.
- If any bushings are cracked or missing, replace them with OEM parts.
Examine Struts and Shocks
- Check the front and rear struts for leaks or damage.
- If struts are found to be faulty, remove them:
  - Remove the wheel to access the strut assembly.
  - Unbolt the strut from the control arm and the upper mount.
  - Install new struts by reversing the removal process and torque to manufacturer specifications.
Check Control Arms
- Inspect control arms for bends or cracks.
- If damaged, replace them:
  - Remove bolts holding the control arm to the chassis and suspension.
  - Install the new control arm and torque fasteners to the specified values.

3. Inspect and Repair Drivetrain Components

Check Drive Axles
- Examine the drive axles for any signs of wear or damage.
- If any issues are found, replace the damaged axle:
  - Unbolt the axle from the transmission and the wheel hub.
  - Install the new axle and torque to specification.
Inspect Motor Mounts
- Check motor mounts for any signs of wear or degradation.
- If necessary, replace the motor mounts:
  - Support the motor with a jack.
  - Remove the bolts from the old mount and install the new one.