What is the technique to permanently disable the auto start-stop function?
3 Answers
The technique to permanently disable the auto start-stop function is as follows: 1. Expose the car to direct sunlight until the displayed temperature exceeds 35°C after starting the vehicle; 2. Then open the interface for disabling the engine auto start-stop function, which should already be in the off state; 3. Next, manually press and hold the switch for disabling the engine auto start-stop function icon until the small yellow bar disappears (indicating the function is enabled), then release the switch; 4. After a few seconds, the small yellow bar will reappear, indicating the operation is complete. Even if the temperature drops later, the engine auto start-stop function will remain disabled, and it will stay off during cold starts as well.
I'm a driving enthusiast and often find the start-stop system annoying in traffic jams, as it keeps automatically shutting off the engine and makes braking uncomfortable. To find a permanent way to disable it, the most straightforward method is to pull out the system's fuse or wiring harness, depending on the car model. For some Japanese cars, you can open the hood, locate the fuse box, and remove the fuse for the start-stop module. Some German cars might require using a computer via the OBD port to change the settings. I've tried pulling the fuse, and it works, but permanently disabling it wastes fuel and may affect the battery life since the system is designed for fuel efficiency and emission reduction. If you're unsure, don't tinker blindly—it could cause electrical issues. It's best to check online tutorials or consult a professional to avoid trouble. The start-stop system is meant to be eco-friendly, but frequent engine restarts while driving can be irritating, and many people want to disable it but must do so carefully to avoid voiding the warranty. I think this trick carries significant risks, and I only occasionally use the button to temporarily turn it off.
As a veteran driver with twenty years of experience, I find the start-stop system well-intentioned but impractical, especially annoying when it automatically shuts off at frequent red lights. To permanently disable it, here are some common techniques: First, the physical method involves pulling the controller fuse—locate the relevant model in the engine compartment fuse box and carefully remove it. Second, the software approach uses an OBD scanner connected to a computer to modify ECU parameters and disable the function, but this is difficult for average car owners and prone to errors. Third, pretending to disconnect the sensor wire may trigger fault codes, doing more harm than good. Many newer models lack a permanent disable option, leaving owners to manually press the switch button each time they start the car, which is a hassle. When practicing these methods, don’t overlook potential risks like faster battery drain or increased starter wear, which could end up costing more in repairs instead of saving money. While the start-stop system benefits emission reduction and environmental protection, it’s ill-suited for urban driving. When exploring workarounds, prioritize safety and avoid overcomplicating things.