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Where to find the reason for the failure of the adaptive headlights on a BMW car

Model: BMW BMW Various
Part: Headlight

In this video, we can see the reason why the adaptive headlights of a BMW were not working: it was a very difficult diagnosis, because the instrumentation was not able to find the reason for the malfunction. What controls the movement of the headlights are the transverse and longitudinal inclination sensors, and by checking each control unit one by one, the youtuber found that the sensor is located inside the alarm siren, located in the rear bumper of the car; by disassembling it, he discovered that there are two 3-volt batteries inside, one of which was shorted. By changing both batteries, he solved the problem and now the adaptive headlights are working again.

Posted on 11 June 2024 by ScegliAuto

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by ScegliAuto

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