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Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 113 (Lights - Service Information) >> Light >> E46 - Adaptive Headlights (AHL), Diagnostics >> Fault Reported By Customer: "No Adaptive Headlights At (E.g.) 80 km/h"

Fault Reported By Customer: "No Adaptive Headlights At (E.g.) 80 km/h"

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If the adaptive headlights fail at speeds over 50 km/h, the signal from the yaw rate sensor is not being received. A fault memory entry must be present in the DSC control unit.

The indicator lamp must NOT be flashing.

The indicator lamp only flashes if there are faults in the adaptive headlight system. The yaw rate sensor is part of the DSC. This means that the indicator lamp will not indicate a fault in the yaw rate sensor.

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