What are the disadvantages of auto start-stop?

[DelVera]

The disadvantages of auto start-stop are: 1. When temporarily stopping on a slope, the start-stop system activates relatively slowly, which can easily cause the vehicle to slide when the brake is released, leading to potential danger; 2. In most vehicles equipped with a start-stop system, when the engine shuts off, the air conditioning only blows air without cooling, significantly affecting passenger comfort; 3. If the vehicle stops during water wading and the engine shuts off, the sudden reduction in exhaust pressure can easily cause water to flow back from the exhaust pipe into the engine, preventing the engine from restarting. Auto start-stop means that the vehicle automatically shuts off the engine when temporarily stopping, such as at traffic lights, and the system restarts the engine when driving resumes. Proper use can save fuel consumption.