Which Button is the Start-Stop Button?
2 Answers
Start button is located near the gear shift lever. The main positions and principles are as follows. Main position: The symbol for the engine start-stop button is a capital letter A with a circle around it. In most models, the automatic start-stop button is located near the gear shift lever or under the air conditioning panel, while in some models, it is near the ignition switch. Working principle of the start-stop system: When the vehicle stops due to traffic congestion or at an intersection, the driver presses the brake pedal and stops to shift gears. At this point, the start-stop system automatically detects. The wheel speed sensor of the anti-lock braking system shows zero. The electronic battery sensor indicates there is enough energy for the next start. When these three conditions are met, the engine will automatically stop running.
The start-stop button is typically a button on the car's dashboard, possibly labeled as A-Off or with a circular arrow symbol, indicating the automatic start-stop system switch. I often inspect this button in repair shops, and it is mostly located near the steering wheel or in a corner of the center console—for example, it's easy to find in BMW or Volkswagen models. Pressing it can disable the engine's automatic shut-off feature, especially useful in traffic jams to avoid frequent engine shutdowns. The core principle of the system is that the engine automatically shuts off when the vehicle stops and restarts the moment you start moving, aiming to save fuel and reduce emissions, but the battery must be in good condition. During daily driving, it's advisable to test if the button responds quickly; if there's a delay, it might indicate aging wiring or a faulty controller, so it's safer to have it diagnosed by a professional shop rather than attempting DIY repairs. Overall, this feature is highly practical in urban areas, reducing fuel consumption by 10-20% and being environmentally friendly in the long run.
