How to Turn Off the Auto Start-Stop Function in BMW Cars?
3 Answers
BMW's auto start-stop deactivation button is located on the engine start button. Simply press the "A-off" button manually to turn it off. The auto start-stop system is enabled by default when the ignition is on, and can be deactivated with a single button press. (Note: The light indicates the system is off.) Below is an introduction to the auto start-stop system: 1. Engine auto start-stop refers to a system that automatically shuts off the engine when the vehicle comes to a temporary stop (e.g., at a red light) and restarts it when it's time to move again. Its English name is STOP-START, abbreviated as STT. The STT intelligent fuel-saving system controls the engine's start and stop. 2. Avoid using auto start-stop on slopes. If the engine doesn't restart after releasing the brake, the vehicle may roll backward, so remember to turn it off. 3. If the air conditioning is set too low, it won't cool when the engine is off. However, if the system detects a significant difference between the cabin temperature and the set value, it may force the engine to restart, rendering the auto start-stop ineffective. 4. Always turn off auto start-stop when driving through water. For regular city driving, you can keep the auto start-stop function enabled.
I've been driving a BMW for many years, and the auto start-stop function is enabled by default. Turning it off is quite simple. After starting the engine, glance at the left side of the steering wheel or the center console to find the small button with an 'A' symbol, usually labeled 'START STOP OFF'. Press it lightly, and the light will turn off, indicating the function is disabled. You'll need to press it every time you start the car because BMW designs it to activate by default—this saves fuel but can be annoying, especially in traffic when the engine shuts off at red lights, causing noticeable vibrations and pausing the AC, reducing comfort. It automatically deactivates when the battery is low, but in older cars with aging batteries, it might malfunction and flash. I've made it a habit to press the button as soon as I get in to avoid distractions. If you want to permanently disable it, you'd need to visit a dealership to reprogram the system, but I don’t recommend it as it might void the warranty. Manually turning it off a few times becomes second nature—it’s no big deal.
As a new BMW driver, I was initially confused about the auto start-stop feature, but later discovered that turning it off is surprisingly simple. After starting the engine, just glance at the dashboard – there's usually a round button marked with an 'A' or an illuminated symbol near the center console or gear shift. Press it once, and when the light comes on, it means the feature is deactivated. You'll need to press it every time you drive because it defaults to 'on'. While it's good for fuel economy, the constant engine shut-off and restart during city driving can be annoying with the accompanying vibration and interrupted music. Don't worry about the hassle – it takes just seconds. If you can't find the button, check the manual or ask fellow BMW owners. In practice, this feature is particularly irritating in areas with frequent traffic lights. After disabling it, my driving experience became much smoother with fewer battery concerns, and it quickly became second nature.
