What does the 'A' on the Mercedes dashboard mean?

[SimonAnn]

The 'A' illuminated on the Mercedes dashboard represents the engine auto start-stop system. Introduction to the engine auto start-stop system: The engine auto start-stop automatically shuts off the engine when the vehicle comes to a temporary stop (e.g., at a traffic light) during driving. When it's time to move forward again, the system automatically restarts the engine. Its English name is STOP&START, abbreviated as STT. The STT intelligent fuel-saving system is a system that controls engine start and stop. How the start-stop system works: When the traffic light turns green, the driver presses the clutch, and the 'start-stop' can be activated immediately, quickly restarting the engine. In automatic transmission models, as soon as the brake is released or the steering wheel is turned, the engine automatically reignites, allowing the driver to step on the accelerator and start moving immediately—all while remaining in D gear.