BMW E87 Xenon Headlight Headlamp Ballast Control Unit Module Valeo 7174448

BMW E87 LED Ballast Module Valeo 7174448 is a specialized component in the Ballasts and Igniters for Lamps category, designed for the front lighting system in BMW 1 Series E87 vehicles. This used LED module ensures stable lamp power supply, supporting proper headlight function and maintaining the original lighting system's performance characteristics. It's a solution for drivers looking to restore full lighting functionality without compromising on a component that matches BMW's design.

Specifications and technical data

• SKU: 6938561-3
• 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

Application and Function of the LED Module

The LED ballast is responsible for stabilizing lamp power parameters and properly controlling the light source in the front headlights. A correctly selected module:

• ensures appropriate brightness and color temperature of the light, consistent with the vehicle manufacturer's specifications,
• reduces the risk of LED lamps flickering or going out,
• supports correct interaction with the BMW E87's onboard electronics.

Its placement at the front of the vehicle helps maintain the original lighting geometry, which is important for both driving safety and regulatory compliance.

Compatibility and Reference Numbers

The offered module is from BMW's parts line and is compatible with OEM designations. It also has assigned replacement numbers, making it easier to select the correct component for a specific headlight configuration. This allows the ballast to be fitted to the existing installation without the need for modifications to the wiring harness or lamp housing.

To ensure a proper fit, it is recommended to compare the markings on your current module and verify compatibility with your vehicle's service documentation or the BMW parts catalog.

Product Characteristics and Installation

The LED ballast for BMW E87 is designed to operate in the demanding conditions of the engine bay, where temperature fluctuations, humidity, and vibrations occur. The module's construction is prepared for installation in the factory-designated location, which facilitates:

• maintaining the headlight system's seal,
• proper heat dissipation from the electronics,
• trouble-free future servicing.

In most cases, installation is a plug-and-play process, provided the part is correctly selected. Installation by an automotive electrician or a workshop familiar with BMW lighting specifics is recommended to avoid installation errors and dashboard fault messages.

Condition, Origin, and Benefits of Choosing a Used Module

The offered component is used, which significantly reduces repair costs compared to purchasing a new module while maintaining the original BMW specifications. Choosing this solution is particularly beneficial when:

• the existing module has been damaged due to water ingress, power surges, or lamp failure,
• lighting errors appear on the instrument cluster,
• LED headlights stop working or operate unstably.

A used module with retained functionality allows for restoring the lighting system's efficiency within a reasonable budget, without the need for aftermarket alternatives with uncertain parameters.

Ballasts and Igniters for BMW Lamps – Selecting the Right Part

If you are looking for other components in the Ballasts and Igniters for BMW Lamps category, you can visit our dedicated subpage, where you will find a wide selection of modules tailored for various BMW models: Ballasts and Igniters for BMW Lamps.

Practical Service Tips

Problems with front lighting often occur alongside other electrical system faults, such as voltage drops or unstable accessory operation. In such situations, it is also worth paying attention to the charging system. A guide describing when it is worthwhile to opt for used components – especially for key electrical parts – can be helpful. More practical information can be found in the article: When is it Worth Replacing an Alternator with a Used One: A Practical Guide for Drivers.

Summary

BMW E87 LED Ballast Module Valeo 7174448 is a functional choice for drivers who want to restore the efficiency of their front lighting while maintaining the specifics of the original BMW system. A correctly selected and properly installed module ensures stable LED lamp operation, improves driving comfort after dark, and enhances road safety, while also being an economical solution due to the use of a pre-owned part.