What is the technique to permanently disable auto start-stop?

[VonAyla]

The technique to permanently disable auto start-stop is: 1. Start the car after exposing it to direct sunlight, ensuring the temperature exceeds 35 degrees; 2. Open the auto start-stop deactivation interface, and you'll notice it's already turned off; 3. Manually press and hold the auto start-stop deactivation icon until the small yellow bar disappears (indicating activation), then release; 4. After a few seconds, the small yellow bar reappears (meaning it auto-deactivates again), and that's it. Even when the temperature drops, the auto start-stop remains disabled, and it stays off during cold starts the next day. The auto start-stop system temporarily shuts off the engine when the vehicle is stationary, while maintaining lubrication by continuously circulating oil within the engine.

[VonOlive]

I've seen many methods to permanently disable the start-stop system and found them quite practical after trying them myself. For example, the simplest way is to locate the battery charge sensor near the car battery and unplug its connector. This tricks the start-stop system into thinking the battery is always fully charged, thus deactivating it. The operation isn't difficult—just carefully pull it out with pliers—but make sure the engine is off and you don't mistake the connector position. However, be warned that this may trigger fault codes, void warranty, or even damage the electrical system. Another approach is to purchase a third-party start-stop deactivator module online for a few dozen yuan, which plugs into the OBD port to permanently disable the function—ideal for those who don't want to tinker. But honestly, permanent deactivation isn't recommended because the start-stop system is designed to save fuel and reduce emissions. Frequent starter use increases engine wear, so it's safer and more practical to just get used to temporarily disabling it via the in-car button.

[StNova]

I've driven quite a few cars with start-stop systems, and there are all sorts of tricks to permanently disable them. Common methods include using an OBD diagnostic tool to input software codes that permanently turn it off—there are plenty of tutorials online, and the tools are available on e-commerce platforms. Another way is to physically disconnect the start-stop switch wiring near the engine, but you'll need a multimeter on hand to avoid short circuits. However, these methods require caution, as improper handling can trigger warning lights and increase repair costs. While disabling the start-stop system eliminates the annoyance of frequent engine restarts, it might reduce fuel efficiency and increase noise when idling. Personally, I prefer learning alternative approaches, like manually turning it off once before driving, which can keep it disabled for several dozen minutes. After all, safety comes first—don't risk major consequences for minor gains.

[OliveLynn]

From a practical standpoint, there are a few tricks to permanently disable the start-stop system. Unplugging the battery sensor connector is a quick fix—it stops the car from detecting battery levels, thereby deactivating the start-stop function. Alternatively, modifying the settings with a programming tool works for those with basic auto repair knowledge. However, be aware that these methods may trigger electronic faults or void warranties, making it less hassle to simply use the in-car switch. The start-stop system was originally designed for environmental benefits, and frequently disabling it might do more harm than good.