2007-2013 Mercedes Gl450 Air Suspension Reset

Resetting the air suspension system on a Mercedes-Benz GL450 depends on the vehicle's generation and the onboard electronics system. Here's a detailed guide for the two generations:

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1. First Generation GL450 (2006–2012, X164) What I’ve seen the most is: 2007 Mercedes gl450 air suspension reset

Reset Procedure

1. Check for Faults: Ensure there are no visible issues like leaks in the air springs or problems with the compressor.
2. Turn Off the Vehicle: Fully switch off the ignition.
3. Disconnect the Battery:
   • Open the hood and locate the battery.
   • Disconnect the negative terminal and wait for about 10–15 minutes.
   • Reconnect the terminal to allow the air suspension control module to reset.
4. Cycle Through Suspension Modes:
   • Start the vehicle and use the suspension height adjustment buttons.
   • Set it to the lowest and then the highest height to test functionality.
5. Test Drive: Drive the vehicle to let the suspension system stabilize and confirm the fault warning has cleared.

Additional Notes

• If the fault persists, an OBD-II diagnostic tool may be required to clear error codes or recalibrate the system.
• Suspension faults on older models often result from compressor wear or leaking air springs.

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2. Second Generation GL450 (2013–2016, X166) What I’ve seen the most is: 2013 Mercedes gl450 air suspension reset

Reset Procedure

1. Use the COMAND System (for minor glitches):

   • Start the engine.
   • Use the suspension height adjustment button near the gear selector to toggle through modes.
   • Hold the button in the middle position for 5–10 seconds to attempt a system reset.

2. Battery Reset (if COMAND doesn’t resolve the issue):

   • Turn off the vehicle.
   • Disconnect the negative battery terminal for 10–15 minutes.
   • Reconnect the battery and restart the vehicle.

3. Scan and Clear Fault Codes:

   • Use a Mercedes-compatible diagnostic tool, like iCarsoft MB II or Autel Maxisys, to read suspension-related fault codes.
   • After fixing the issue, clear the codes to reset the air suspension system.

4. Calibration Using STAR Diagnostic System:

   • If the reset fails or the system remains unresponsive, recalibration is required using the Mercedes-Benz STAR diagnostic tool. This ensures the system recognizes the correct ride height and functionality.

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Key Considerations

• Common Faults: Issues often stem from leaks in the air suspension struts, worn compressors, or height sensors. Replacing these parts may be necessary before a reset works.
• Warning Light: If the air suspension warning persists after a reset, it indicates a deeper problem, such as a failed compressor or electrical fault.
• Professional Help: For complex cases, seek assistance from a certified Mercedes technician to avoid further damage.

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Conclusion

For mercedes gl450 air suspension reset, the basic reset involves disconnecting the battery, using the COMAND system (second-gen), or scanning and clearing fault codes with a diagnostic tool. Persistent issues often require professional recalibration or repairs to key components like air springs, the compressor, or sensors.