6934122 BMW E60 E61 Adaptive Headlight AHL Control Module – OEM Used & Tested

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This BMW adaptive headlight AHL control module is a genuine OEM electronic component for BMW E60 and E61 models. Primary OEM number 6934122. It is designed to manage the Adaptive Headlight function of the vehicle, receiving steering angle, speed and level data and using it to swivel the xenon headlights so the beam follows the road. It is built to the original BMW specification, so fit, connector layout and electronic behavior match the factory unit it replaces.

Its job is to calculate the correct swivel angle, drive the headlight motors and keep the headlight position in step with driving conditions. A properly working AHL control module supports better road illumination in corners, stable light output and correct operation of the adaptive headlight system. Because the unit works together with other control modules on the vehicle, its hardware and software revision matter for correct communication.

Common signs of a faulty unit include headlights that no longer swivel, an adaptive headlight fault message in the instrument cluster, lights stuck in one position, or headlights that move erratically. When the module is defective or has lost communication, the adaptive function may be disabled and the beam may stay fixed straight ahead, and stored fault codes can point to the control unit. Intermittent faults are also possible, appearing only when the vehicle is warm or after rain.

This is a used original part, removed from a vehicle and tested before sale. Match the exact OEM number 6934122 before ordering. Professional installation is recommended, and coding or programming to the vehicle may be required where applicable. Checking the part number printed on the label of your original unit is the safest way to confirm compatibility.