how to fix the air suspension on my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

3-5 hours

Time

hard

Difficulty

high

Severity

3 min read

539 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 air suspension issues 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 systems.
•Ensure the vehicle is on a level surface and securely supported with jack stands before working underneath.

Symptoms

•Warning message on the dashboard regarding air suspension
•Vehicle remains at a fixed height or does not adjust as expected
•Unusual noises from the suspension system
•Poor ride quality or a rough ride
•Visible sagging or uneven stance of the vehicle

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific air suspension faults.
2
Inspect the air suspension compressor for noise and operational functionality.
3
Check air lines and connections for leaks or damage.
4
Inspect air struts for signs of wear or failure, such as cracks or air leaks.
5
Verify the height sensors' functionality and calibration.
6
Examine the control module for software updates or faults.

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
•Screwdrivers
•Jack and jack stands

Parts Required

•Air compressor
•Air struts (if needed)
•Height sensors (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific air suspension faults.
2
Inspect the air suspension compressor for noise and operational functionality.
3
Check air lines and connections for leaks or damage.
4
Inspect air struts for signs of wear or failure, such as cracks or air leaks.
5
Verify the height sensors' functionality and calibration.
6
Examine the control module for software updates or faults.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery to ensure safety while working on the electrical components.

2. Inspect and Replace Air Suspension Components

Air Compressor:
1. Locate the air compressor, typically found under the vehicle near the rear.
2. Disconnect the electrical connector and air lines from the compressor.
3. Remove mounting bolts using a socket set.
4. Install the new air compressor, ensuring it is securely mounted and reconnect all lines and connectors.
Air Struts:
1. Lift the vehicle and secure it with jack stands for safety.
2. Remove the wheel corresponding to the strut being replaced.
3. Disconnect the air lines from the strut.
4. Remove the bolts securing the strut to the vehicle suspension.
5. Install the new strut, ensuring proper alignment.
6. Reconnect air lines and tighten all bolts to manufacturer specifications (typically around 85-120 Nm).
Height Sensors:
1. Locate the height sensor on the affected axle.
2. Disconnect the electrical connector.
3. Remove the mounting bolts and replace with a new sensor.
4. Reconnect the electrical connector.

3. System Calibration

Reconnect the battery.
Use the Tesla service tool or a compatible OBD-II scanner to recalibrate the air suspension system.
Follow on-screen instructions to complete the calibration process.