The TPMS (Tire Pressure Monitoring System) in the G-Class ensures optimal performance and safety, but occasionally, a tire pressure sensor fault can appear due to the following reasons:
- Low Tire Pressure: A drop in pressure, especially when driving on uneven or rough terrain, can trigger the sensor.
- Damaged or Faulty Sensors: The TPMS sensors may get damaged over time, especially in off-road conditions or during tire changes.
- Depleted Sensor Battery: The sensors are powered by small batteries that typically last around 5-7 years. If the battery is depleted, the sensor will stop functioning.
- Improper System Reset: After tire rotations or replacements, the system might not recalibrate automatically and will need a manual reset.
- Software Glitches: Software bugs can sometimes trigger false alerts, which may require a software update or a system reset.
Steps to Fix the Tire Pressure Sensor Fault in Mercedes-Benz G-Class
- Check Tire Pressure:
- Use a tire pressure gauge to check all four tires, ensuring they are inflated to the manufacturer’s recommended pressure levels (typically listed inside the driver’s door or in the manual).
- Inflate or adjust the tire pressure as necessary.
- Reset the TPMS System:
- Turn the ignition to the ON position without starting the engine.
- Use the steering wheel buttons to access the “Service” menu on the dashboard display.
- Scroll to “Tire Pressure”, then select “Restart”.
- Confirm the reset and drive the vehicle for a short while to allow the system to recalibrate.
- Inspect TPMS Sensors:
- If the error persists, one or more sensors may be damaged, or the sensor batteries may be depleted.
- Visit a Mercedes-Benz service center to test and replace any faulty sensors.
- Perform a Software Update:
- If the sensors are in good condition, the issue may be related to the system software. Check with your dealership to see if a software update is available.
- Seek Professional Assistance:
- If resetting and updating the system doesn’t resolve the issue, a professional diagnostic test at a Mercedes-Benz service center will help identify the problem.
Preventing Future Tire Pressure Sensor Faults in G-Class
- Regularly check tire pressure, especially before off-road adventures or during seasonal temperature changes.
- Replace TPMS sensors every 5-7 years or when changing tires to prevent battery-related issues.
- Always reset the system after tire rotations, replacements, or maintenance.