how to troubleshoot Tesla Model S Original (2012-2020) suspension problems

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

596 words

Problem Statement

Learn how to troubleshoot and fix suspension issues in Tesla Model S (2012-2020). Step-by-step guide with diagnostic steps 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 components.
•Ensure the vehicle is securely lifted and supported before working underneath.

Symptoms

•Audible clunking or knocking noises from the suspension
•Vehicle leaning to one side or uneven ride height
•Warning message on the dashboard indicating air suspension issues
•Poor handling or increased body roll during turns
•Reduced ride comfort or harshness over bumps

Diagnostic Steps

1
Inspect the air suspension system for visible leaks or damage to air struts and lines.
2
Use a diagnostic tool to scan for error codes related to the suspension system.
3
Check the air suspension compressor operation by listening for abnormal noises or failure to activate.
4
Examine the vehicle’s ride height using a measuring tape to confirm if it meets manufacturer specifications.
5
Inspect suspension components (control arms, bushings, and links) 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

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

Parts Required

•Air strut(s)
•Air compressor (if necessary)
•Air line fittings

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Diagnostic Steps

1
Inspect the air suspension system for visible leaks or damage to air struts and lines.
2
Use a diagnostic tool to scan for error codes related to the suspension system.
3
Check the air suspension compressor operation by listening for abnormal noises or failure to activate.
4
Examine the vehicle’s ride height using a measuring tape to confirm if it meets manufacturer specifications.
5
Inspect suspension components (control arms, bushings, and links) for wear or damage.

Solution

1. Preparation

Gather tools and park the vehicle on a level surface.
Disconnect the 12V battery to ensure safety while working on electrical components.

2. Inspect and Replace Air Strut

Inspect Air Strut:
- Check for visible damage or air leaks.
- If damaged, proceed to replacement.
Remove Old Air Strut:
- Raise the vehicle using a jack and secure with jack stands.
- Remove the wheel to access the strut.
- Unscrew the bolts securing the strut to the control arm and upper mount.
- Disconnect the air line from the strut.
- Remove the strut from the vehicle.
Install New Air Strut:
- Position the new air strut in place.
- Connect the air line and secure with the appropriate fittings.
- Reattach the strut to the control arm and upper mount using the torque specifications (typically 50-70 ft-lbs for strut bolts).
- Reinstall the wheel and lower the vehicle.

3. Check and Replace Air Compressor

Remove Air Compressor:
- Access the compressor by removing the cover if necessary.
- Disconnect the electrical connector and air lines.
- Unscrew the compressor from its mounting location.
Install New Compressor:
- Mount the new compressor in place and secure it with bolts.
- Reconnect the air lines and electrical connector.

4. Calibration

Perform Suspension Calibration:
- Reconnect the 12V battery.
- Use the diagnostic tool to calibrate the air suspension system according to manufacturer specifications.

5. Final Assembly

Recheck all connections and ensure no tools are left in the work area.
Test the air suspension system operation by raising and lowering the vehicle as per the diagnostic tool instructions.