Why does the Mercedes sunroof open automatically?

[DeKarter]

Reasons for the automatic opening of the sunroof in Mercedes-Benz vehicles include lack of regular maintenance and cleaning, and incorrect initialization settings. The specific causes and solutions are as follows: Lack of regular maintenance and cleaning: If the sunroof system is not regularly cleaned and maintained, the sunroof tracks can become dirty, increasing movement resistance. In summer, the heat can soften the sunroof seals, further increasing resistance. The solution is to perform timely cleaning and maintenance. Incorrect initialization settings: Incorrect initialization settings (such as low battery voltage or failure to perform initialization) or excessively dirty sunroof tracks can cause the sunroof to malfunction. Reinitializing and cleaning the dust can resolve the issue. Sliding-tilt sunroof initialization: First, turn off the ignition switch, then turn it on again. Press and hold the sunroof lift switch until the rear part of the sliding/tilt sunroof is fully raised. Hold the switch in this position for 1 second, then check if the sliding/tilt sunroof can fully open automatically again. If not, repeat the initialization process.