What is the reason why the BMW headlights cannot be turned off in the 0 position?

[StRose]

For daytime running lights, even if the light switch is in the 0 position, they will remain on unless you disable them through the iDrive system. Therefore, when encountering this situation, first confirm whether it's just the daytime running lights that are on. If the headlights (high beam/low beam) automatically turn on at night when the light switch is in the 0 position, then it indicates a genuine problem. There are three common reasons why headlights remain on and cannot be turned off: 1. There is an issue with the headlight module; 2. The light switch control center is faulty; 3. The height sensor is damaged, there is a short circuit in the connector, or the height sensor's installation position has shifted.

[DeHarper]

When I see that the BMW headlights can't be turned off in the 0 position, I usually check the automatic lighting system first, as many BMWs have features that automatically turn on the lights in rainy or dim environments. If the switch position is faulty, it might be due to wear or poor contact. I should remind you that battery issues can also cause problems—if the power consumption is high, it can affect startup. Last time I helped a friend fix their car, I found that a blown fuse was the culprit, and simply replacing it solved the issue. I recommend troubleshooting in this order: check if the automatic mode is properly set, test whether the switch is functioning smoothly, then inspect the fuse and wiring connections. Don’t wait until nighttime driving becomes a hazard—get it checked by a professional shop as soon as possible, since lighting is crucial for driving visibility.

[DeAaron]

BMW's headlight system is quite intelligent, but sometimes it malfunctions in the 0 position due to the sensor triggering automatic lighting. Aging switch components can cause poor contact, and short circuits or relay failures are also common culprits. I must say, voltage instability can lead to signal misjudgment, and programming errors in the vehicle's system are even more concerning. Reflecting on my experience dealing with such issues, the first step is to check the settings in the manual and try turning off the automatic function. If that doesn't work, test the fuses, and if the problem occurs frequently, check the battery health. If left unrepaired, this issue can shorten bulb lifespan and increase power consumption. It's most reliable to promptly visit a 4S store for diagnostic tools to avoid future troubles.

[LeGabriel]

I once encountered a situation where the headlights on my BMW wouldn't turn off when in 0 gear, which turned out to be because the automatic lights weren't properly deactivated. There's an option in the settings to turn off the sensor function. If the switch gets stuck, try gently shaking it a few times or cleaning it. That time when I was fixing the car, I found that a fuse had blown, and after replacing it at the shop, everything was fine. Remember to check that the wiring isn't loose, otherwise the lights might stay on after turning off the ignition and starting again. If you run into this kind of problem, don't panic—first figure out if it's due to your own misoperation, then solve it step by step, just make sure it doesn't affect your driving.