How to reset mercedes abc suspension

Resetting the Mercedes ABC (Active Body Control) suspension can involve a manual process or the use of a diagnostic tool. Here's a detailed guide:

1. Ignition On: Turn the ignition key to position 2 (without starting the engine), or press the start button without pressing the brake. This ensures the system is powered but the engine remains off.

2. Adjust Suspension Height: Locate the ABC suspension button, typically on the dashboard or center console. Press the button to raise the vehicle to its maximum height. Once raised, press the button again to lower the vehicle to its normal height. Repeat this process 2–3 times to ensure the system cycles through its full range.

3. Steering Calibration: With the ignition still on, turn the steering wheel fully to the left, then fully to the right, and finally center it. This helps the system recalibrate any alignment-related sensors.

4. Start the Engine: Start the car and observe the dashboard for any remaining error messages or warnings related to the ABC system.

5. Drive for Recalibration: Take the vehicle for a short, slow drive. This allows the suspension system to fully recalibrate and stabilize itself during movement.

Using a Diagnostic Tool: If the manual process doesn’t resolve the issue, connect a diagnostic tool like STAR Diagnosis or an advanced OBD-II scanner. Navigate to the “Suspension” or “ABC” menu and select options such as “Reset” or “Clear Fault Codes.” Follow any prompts provided by the tool to complete the reset process.

If problems persist, check the hydraulic fluid level in the ABC reservoir, inspect for leaks, or consult a Mercedes specialist as there may be issues with sensors, actuators, or other mechanical components.