How to Activate One-Touch Window Roll-Up with Mercedes Key?

[OTucker]

After the car is locked, the owner can press and hold the lock button on the car key for three seconds or more, at which point all the car windows will automatically roll up (equivalent to closing). Below is some related information about remote keys: 1. Introduction: A remote key utilizes the wireless remote control function of the central locking system, allowing the user to unlock and lock the car doors from a distance without inserting the key into the lock. 2. Working Principle: Simply put, the key emits a weak radio wave, which is received by the car's antenna. The electronic control unit (ECU, Electronic Control Unit) then identifies the signal code, and the system's actuator (motor or electromagnetic coil) executes the action of unlocking or locking the car.