Why can't the headlights of Mercedes-Benz A160 be turned off?

1 Answers
DelDallas
07/30/25 8:01am
The headlights remain on and cannot be turned off because the automatic mode is activated. How to turn it off: "Auto" represents the automatic mode. Turn the switch to "0" or "off" to deactivate it. Function of automatic headlights: When the light dims during driving, the headlights automatically turn on, and they turn off when the light becomes brighter. The working principle of automatic headlights relies on a photosensitive sensor, which is usually located on the car's front dashboard or the top of the windshield. When the photosensitive sensor detects sufficient light, it remains in an open circuit state, keeping the headlights off. If the sensor detects insufficient light, the photosensitive material emits an electrical signal, automatically turning on the headlights without manual intervention.
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