how to replace worn struts on my Tesla Model 3 Original (2017-2023)

Tesla Model 3 Highland (2024-present)

Error Codes

3-5 hours

Time

hard

Difficulty

high

Severity

4 min read

626 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to replace worn struts on your Tesla Model 3 (2017-2023). Step-by-step guide with symptoms, diagnostic steps, tools, and safety tips.

Affected Component

Suspension

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always use jack stands when working under a vehicle.
•Use caution when working with compressed springs; ensure they are properly secured before removal.

Symptoms

•Excessive bouncing or swaying during driving
•Uneven tire wear
•Difficulty maintaining control during turns
•Increased braking distance
•Noises such as clunking or rattling over bumps

Diagnostic Steps

1
Inspect struts for visible signs of wear or damage, such as leaks or physical deformities.
2
Perform a bounce test by pushing down on each corner of the vehicle to observe if it bounces excessively.
3
Check the vehicle's alignment to identify any issues caused by worn struts.
4
Examine tires for uneven wear patterns that could indicate suspension problems.
5
Use a diagnostic tool to check for any related error codes that may affect the vehicle's suspension system.

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

•Floor jack
•Jack stands
•Socket set
•Torque wrench
•Strut spring compressor
•Impact wrench

Parts Required

•Replacement struts (front or rear as needed)
•Strut mounts (if worn)
•Any additional hardware (nuts, bolts) if necessary

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Diagnostic Steps

1
Inspect struts for visible signs of wear or damage, such as leaks or physical deformities.
2
Perform a bounce test by pushing down on each corner of the vehicle to observe if it bounces excessively.
3
Check the vehicle's alignment to identify any issues caused by worn struts.
4
Examine tires for uneven wear patterns that could indicate suspension problems.
5
Use a diagnostic tool to check for any related error codes that may affect the vehicle's suspension system.

Solution

1. Preparation

Tools Required: Floor jack, jack stands, socket set, torque wrench, strut spring compressor, impact wrench (optional).
Park the vehicle on a level surface and engage the parking brake.
Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Lift the Vehicle

Use a floor jack to lift the front or rear of the vehicle, depending on which struts you are replacing.
Secure the vehicle with jack stands.

3. Remove the Wheel

Use a socket set to remove the lug nuts and take off the wheel to access the strut assembly.

4. Remove the Strut Assembly

Disconnect any Sensors: If your Model 3 has any suspension sensors, disconnect them carefully.
Unbolt the lower strut mount: Locate and remove the bolts securing the lower part of the strut to the control arm.
Unbolt the upper strut mount: Open the hood and locate the upper strut mount. Remove the nuts securing the strut to the mount using a socket wrench.
Remove the strut assembly: Carefully pull the strut assembly out from the wheel well.

5. Replace Strut Components

Strut Spring Compressor: Use a strut spring compressor to safely compress the spring on the old strut assembly.
Remove the old strut: Once compressed, remove the top nut to detach the strut from the spring and any other components like the rubber bump stop or bearings.
Install new strut: Attach the new strut to the spring and reverse the steps to install it back into the vehicle.

6. Reassemble

Reinstall the strut assembly in the reverse order of removal.
Ensure all bolts are tightened to the manufacturer’s specifications (consult a repair manual for torque specifications).

7. Reinstall the Wheel

Place the wheel back onto the hub and hand-tighten the lug nuts.
Lower the vehicle back to the ground using the floor jack, then torque the lug nuts to the manufacturer’s specifications.

8. Reconnect Battery

Reconnect the negative terminal of the battery.