BMW E60 E61 E90 E91 Xenon Adaptive Headlight Ballast Control Module 6934836

BMW E60 E61 E90 E91 Xenon Adaptive Headlight Ballast Control Module is an original component from the Electronic control modules and controllers group, designed for precise management of the adaptive xenon headlight function in selected BMW 5 and 3 series models. Thanks to its factory OEM design, the module ensures proper cooperation with the vehicle's electrical system and stable operation of the adaptive lighting system.

Specifications and technical data

• SKU: 6934836
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6934836
• Substitutable numbers: 63126941634, 6941634, 63127189312, 7189312, 631269348366312693417163126930650, 693483669341716930650
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented controller is responsible for the electronic control of xenon headlight swiveling in BMW vehicles equipped with an adaptive front lighting system. The module analyzes signals from other vehicle systems and, based on them, adjusts the position of the lamps, improving visibility when cornering and during maneuvers in low-visibility conditions. Using a dedicated controller allows for maintaining compliance with the factory logic of the lighting system.

Construction and integration with the BMW electrical system

As an OEM BMW component, the module is structurally matched to the factory wiring harnesses and mounting points in the models for which it is intended. The appropriate internal electronics architecture enables communication with the vehicle's bus and cooperation with other controllers, which is crucial for the correct operation of the xenon headlight swiveling function. As a result, installation is performed without the need for electrical system modifications, and operating parameters remain consistent with the manufacturer's specifications.

Benefits of using an original controller

Using an original control module instead of a damaged component allows for restoring the full functionality of the adaptive lighting system without the risk of conflicts with the vehicle's electronics. The main advantages include:

• maintaining the factory operating characteristics of the xenon headlights,
• proper cooperation with other controllers in the vehicle,
• no need for electrical system modifications,
• consistency with BMW service diagnostics. This makes the module a practical solution both for standard repairs and for restoring full system functionality after a collision or failure.

Product characteristics and replacement selection

The offered item belongs to the Electronic control modules and controllers group, which means it is a part responsible for processing signals and controlling the operation of a specific component – in this case, the xenon headlight swiveling mechanism. The module has an assigned OEM part number and associated interchangeable numbers, which facilitates the selection of the correct controller for a specific vehicle configuration. Before purchasing, it is worth comparing the markings with the component installed in the car or seeking professional assistance to ensure full compatibility.

Condition and practical application

The product is offered as a used OEM module, which in practice means the possibility of an economical repair of the lighting system while maintaining factory build quality. This type of solution is often chosen by workshops specializing in the BMW brand and by conscious users who expect consistency with the vehicle's original electronics. A properly selected and functional controller allows for eliminating errors related to the operation of adaptive headlights and restoring driving comfort after dark. If you are planning a comprehensive repair or upgrade of the front lighting area in your BMW and need other components from the same group, such as light modules, leveling controllers, or other headlight management units, check the available parts in the BMW electronic control modules and controllers category. More practical information on when it is worth reaching for used automotive electronics, how to consciously choose controllers and modules, and what to pay attention to when purchasing can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.