Does the Auto Start-Stop Function Damage the Engine?
2 Answers
Auto start-stop function does not damage the engine. Here are the specific details about the start-stop function: 1. Function: When the vehicle is in motion and needs to stop, the engine will automatically shut off; when you want to move again, simply press the clutch, and the engine will automatically restart. 2. Working Principle: When the vehicle stops due to traffic congestion or at an intersection, the driver can press the brake pedal. At this point, the system automatically activates, the engine idles without engaging any gear, the wheel speed sensors of the anti-lock system show zero, and the electronic battery sensor indicates sufficient energy for another start. The entire process remains in D gear.
The auto start-stop function is something I frequently use while driving. In city traffic congestion, it shuts off the engine to save fuel. I've been using it for several years and always worried about increased engine wear, but the design actually takes this into account comprehensively. The starter motor is reinforced, so starting doesn't damage critical engine components like bearings and pistons. On the contrary, stopping the engine reduces idle-speed carbon buildup issues, which is actually better for engine health. The fuel-saving effect is noticeable, saving about 5%-10% in fuel consumption each time. However, battery life needs attention because the repeated starts put a heavy load on it, so choosing a high-quality AGM battery and maintaining it regularly is sufficient. After long-term use, my car has had no issues, and the engine remains in good condition. This feature is quite considerate. Don't be scared by outdated notions—modern cars have been tested for reliability.
