BMW E87 Xenon Headlight Ballast Control Unit Module Cover Bracket Trim 7174448

BMW E87 Xenon Headlight Ballast Control Unit Module Cover Bracket Trim is a specialized component of the front lighting system, responsible for stable power supply and control of LED lamps. Thanks to precise electronics and compatibility with BMW installations, the module ensures proper light operation, eliminating errors and flickering. This solution is intended for users who expect consistency with the factory lighting system and want to restore full headlight functionality.

Specifications and technical data

• SKU: 6938561-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6938561
• Substitutable numbers: 63126938561, 6938561, 73160087, 7174448
• Location on the vehicle: Front
• Category: Headlight Ballasts & Ignitors

Purpose and function of the LED module

The offered module belongs to the Ballasts and igniters for lamps group and is dedicated to operation in the front part of the BMW E87 series vehicle. Its task is to control the power parameters of the LEDs in the headlight to maintain a stable light beam, correct color temperature, and compliance with the car's onboard electronics. A properly selected ballast reduces the risk of overheating lighting components and the occurrence of error messages on the instrument cluster.

Compatibility and fitment for BMW

The module has been designed for integration with the factory BMW lighting system, which translates into proper electrical and mechanical fitment. Using the original Valeo design allows for maintaining:

• consistency with the vehicle's electrical installation,
• proper cooperation with the onboard diagnostic system,
• correct operating parameters of LED headlights in the front of the car.

Thanks to this, the ballast can be used as a component to restore the efficiency of the lighting system after a failure or damage to the previous module, without the need for interfering with the wiring harness or additional programming beyond the standard service procedure provided for a given model.

Performance characteristics and advantages of use

Choosing this LED module for the BMW E87 allows for a technically correct repair of the front lighting system. Key benefits include:

• stabilization of LED operation in the headlight, which affects uniform and predictable road illumination,
• maintaining factory light operation logic, including cooperation with body sensors and controllers,
• reducing the risk of errors related to improper power consumption or interference in the installation.

The element comes from the BMW parts group, which is important for users who prioritize compliance with the manufacturer's original solutions. The used condition allows for an economical repair while maintaining the functionality required in daily vehicle operation.

Placement in the vehicle and mounting aspects

The ballast is intended for installation in the front part of the car, in the immediate vicinity of the LED headlight. Such placement shortens the path of power cables, improves the stability of electrical signals, and facilitates service. During installation, it is recommended to:

• maintain the correct order of connecting the connectors,
• check the condition of the sockets and headlight seals,
• verify the correct operation of the lights after installing the module.

Properly performed installation allows for utilizing the full potential of the module and ensures trouble-free cooperation with other elements of the lighting system.

Lighting system expansion and technical knowledge

If you are planning a comprehensive repair or upgrade of the front lighting zone in your BMW and need other elements from the same group, such as additional control modules, ballasts, or igniters, check the available parts in the BMW Ballasts and igniters for lamps category.

When planning broader service work, it is also worth expanding your knowledge on the operation and selection of used electrical components. Practical tips on assessing the condition of charging system components and the principles of safe replacement can be found in the article When is it worth replacing an alternator with a used one: a practical guide for drivers, which helps in making informed service decisions within the vehicle's electrical installation.