Reasons Why Mercedes-Benz Indicates the Tire Pressure Monitoring System Has Stopped Working?
2 Answers
Mercedes-Benz indicating the tire pressure monitoring system has stopped working is due to a damaged tire pressure sensor. The tire pressure sensor is used to monitor the tire pressure and is directly installed inside the tire, connected to the tire inflation port. If the tire pressure sensor is damaged while driving, it can also cause the tire pressure warning light to illuminate. For sensor damage issues, the only solution is to replace it with a new component. According to the international GBT2978-2008 standard requirements, the standard tire pressure is 2.4-2.5bar. In winter, the tire pressure should be adjusted slightly higher than the standard, approximately 0.2bar, based on the standard tire pressure of the car tires. In summer, the tire pressure can generally be slightly lower than the standard, about 0.1bar, to avoid tire blowouts due to high temperatures. Tire pressure reset method: First, turn on the ignition switch, then press and hold the tire pressure monitoring reset button until you hear a "beep" sound before releasing it. The tire pressure monitoring system will then store the current normal tire pressure data, automatically clear the previous data, and finally, the dashboard warning light will turn off, completing the tire pressure reset.
Last time when I was driving my Mercedes, the tire pressure monitoring system also displayed a 'stop working' warning. The main reason was that the battery in the sensor ran out, as built-in batteries typically last 5-10 years and naturally degrade with the vehicle's age. Another common issue is the system not being reset after tire removal/installation, like when changing wheels or after modifications done at a tuning shop without following proper initialization procedures, causing the system to lose signal. Software glitches also frequently occur, especially when the vehicle's firmware isn't promptly updated after an upgrade, leading to communication errors. I recommend regularly checking tire pressure manually - safety first, don't rely solely on the system. If issues arise, get professional diagnosis immediately to avoid compromising driving safety. Otherwise, ignoring a slow leak could lead to a dangerous tire blowout. Experienced drivers know electronic systems often have minor but easily fixable quirks.
