how to fix leaking struts on Tesla Model 3 Original (2017-2023)?

Tesla Model 3 Highland (2024-present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

3 min read

545 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 diagnose and fix leaking struts on Tesla Model 3 (2017-2023). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

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.
•Wear safety glasses and gloves when handling suspension components.

Symptoms

•Fluid leaking from the strut assembly
•Diminished ride comfort or increased bounciness
•Uneven tire wear
•Noise from the suspension while driving (e.g., clunking or rattling)
•Warning light on the dashboard (if equipped with air suspension monitoring)

Diagnostic Steps

1
Visually inspect the struts for signs of fluid leakage.
2
Check the vehicle's alignment and tire wear patterns.
3
Test the struts by pushing down on the corners of the vehicle to assess rebound and damping performance.
4
Use a spray cleaner to remove oil residue and confirm the source of the leak.
5
Inspect associated components (like mounts and bushings) for wear or damage.

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
•Jack stands
•Lug wrench
•Socket set
•Torque wrench
•Strut spring compressor
•Leak detection dye (if needed)

Parts Required

•Replacement struts (pair recommended)
•New strut mounts (if necessary)
•New seals or bushings (if applicable)

Related Faults

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Diagnostic Steps

1
Visually inspect the struts for signs of fluid leakage.
2
Check the vehicle's alignment and tire wear patterns.
3
Test the struts by pushing down on the corners of the vehicle to assess rebound and damping performance.
4
Use a spray cleaner to remove oil residue and confirm the source of the leak.
5
Inspect associated components (like mounts and bushings) for wear or damage.

Solution

1. Preparation

Tools Required: Jack, jack stands, lug wrench, socket set, torque wrench, strut spring compressor (if necessary), and a leak detection dye (if needed).
Safely lift the vehicle using a jack and secure it with jack stands. Ensure the vehicle is on a flat surface.

2. Remove Wheel and Strut Assembly

Use the lug wrench to remove the wheel from the affected side.
Disconnect any brake lines or sensors connected to the strut assembly.
Remove the bolts securing the strut to the steering knuckle and any top mount bolts in the engine bay.

3. Inspect and Replace Strut

Use a strut spring compressor to decompress the spring if replacing the strut assembly (follow manufacturer instructions for safety).
Remove the strut from the vehicle.
Inspect the strut for damage and leakage. If leaking, replace with a new strut.
If reusing the strut, ensure seals are intact and consider replacing seals as needed.

4. Installation of New Strut

If using a new strut, install the spring and top mount onto the new strut.
Reinstall the strut assembly into the vehicle, securing it to the steering knuckle and tightening the bolts to the manufacturer's specifications.
Reattach the brake lines and any associated sensors.

5. Reassemble Wheel and Test

Reinstall the wheel and tighten lug nuts to the recommended torque.
Lower the vehicle off the jack stands and test drive for performance and to check for leaks.