The TPMS in the CLA Series alerts drivers to tire pressure problems, but false warnings or sensor faults can also occur. Here’s why this might happen:
- Low Tire Pressure: Even a small variation in pressure, often due to temperature changes, can trigger the alert.
- Faulty or Damaged Sensors: Over time, TPMS sensors may malfunction due to physical damage or wear.
- Battery Depletion: TPMS sensors have internal batteries that usually last about 5-7 years, and they may need replacement if they’re running low.
- Improper System Reset: After changing or rotating tires, the system may not recalibrate automatically and may require manual resetting.
- Software Glitches: Software issues can sometimes cause false warnings, which may need a system update to fix.
How to Fix Tire Pressure Sensor Fault in Mercedes-Benz CLA Series
- Check Tire Pressure:
- Make sure all four tires are properly inflated to the manufacturer’s recommended pressure. You can find this information in the owner’s manual or on the sticker inside the driver’s door.
- Inflate or adjust tire pressure as needed.
- Reset the TPMS System:
- Turn the ignition to the ON position without starting the car.
- Use the steering wheel controls to navigate through the “Service” menu on the dashboard.
- Select “Tire Pressure”, then choose “Restart”.
- Confirm the reset and drive for a few minutes to let the system recalibrate.
- Inspect TPMS Sensors:
- If the error continues, it’s possible one or more sensors are faulty or their batteries are depleted. Have a service professional inspect the sensors and replace them if needed.
- Update Software:
- If the issue is not physical, the system might require a software update. Visit your Mercedes dealership to check for any available updates.
- Seek Professional Assistance:
- If the problem persists after resetting, a professional diagnostic at a Mercedes-Benz service center will help pinpoint the issue.
Preventing Future TPMS Faults in the CLA Series
- Regularly check tire pressure, especially during seasonal temperature changes or before long trips.
- Replace the TPMS sensors every 5-7 years or when changing tires.
- Ensure the system is properly reset after any tire maintenance or rotation.