What to Do When the Mercedes Tire Pressure is Normal but the Tire Pressure Alarm Sounds?
2 Answers
If the Mercedes tire pressure is normal but the tire pressure alarm sounds, a tire pressure reset should be performed. The Mercedes tire pressure reset method is as follows: First, turn on the ignition switch, then press and hold the tire pressure monitoring reset button until you hear a "beep" sound, then release it. The tire pressure monitoring system will store the current normal tire pressure data, automatically clear the previous data, and finally, the warning light on the dashboard will turn off, completing the tire pressure reset. There are generally three reasons for abnormal tire pressure: Abnormal tire pressure: The alarm will usually sound if the pressure is below 1.8 bar or above 3.0 bar. In this case, a tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure reset is not performed in time, the tire pressure monitoring system will still record the previous data, causing the tire pressure monitoring indicator light to turn on. In this case, simply perform a tire pressure reset. Damaged tire pressure sensor: The tire pressure sensor, which is used to monitor tire pressure, is installed directly inside the tire and connected to the tire inflation valve. If the tire pressure sensor is damaged during driving, such as by hitting a curb, it can also cause the tire pressure warning light to turn on. For sensor damage issues, the only solution is to replace it with a new component.
I was also quite puzzled when I first encountered this issue. Even though I measured all four tires with a tire pressure gauge and they were normal, the alarm just kept going off. My first reaction was to check the tire pressure settings in the menu. Mercedes-Benz vehicles usually have a reset option on the central control screen, so I quickly pressed it to reset. Sometimes it's due to temperature changes or uncalibrated sensors—just wait a few minutes to see if the alarm stops. If it's still ringing, it might be that the sensor battery is dead or there's an internal malfunction. Don't rush to drive out; it's safer to go to a 4S shop and have it checked with professional equipment—safety comes first. Regular tire pressure checks and system updates can also prevent problems. Now, I've set up quarterly inspection reminders for my car.
