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