Headlight Module Mercedes W164 W209 W211 Xenon Ballast Control Unit A0028206026

Headlight Module Mercedes W164 W209 W211 Xenon Ballast Control Unit is a specialized lighting system component responsible for controlling the operation of adaptive xenon headlights in Mercedes W209 and W211 class vehicles. Thanks to its factory design, the module works with the leveling and cornering light systems, ensuring a stable light beam and predictable headlight behavior. This solution is intended for users who expect consistent front lighting system performance and the preservation of the original lighting characteristics.

Specifications and technical data

• SKU: A0028206026
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0028206026
• Substitutable numbers: A0028206026, A 002 820 60 26, 5DF008704-00, 5DF 008 704-00
• Category: Headlight Assemblies

Purpose and function in the Front Lighting system

The described Headlight Module Mercedes W164 W209 W211 Xenon Ballast Control Unit is a part of the Front Lighting system in Mercedes cars equipped with xenon headlights featuring a cornering function. Its task is to control the light source and interact with the headlight's swiveling mechanism so that the light beam is directed according to the vehicle's path.

In practice, this means:

• stable power supply to the xenon lamp under various operating conditions,
• cooperation with sensors and controllers responsible for the headlight beam angle,
• maintaining the factory lighting parameters specified by the vehicle manufacturer.

Compatibility and integration with Mercedes vehicles

The module has been designed for integration with the electrical installation and electronic architecture of Mercedes W209 and W211 series cars. This means matching connectors, proper communication with other controllers, and the ability to mount it in the location provided by the manufacturer without the need for installation modifications.

Thanks to the use of an original OEM solution, the following are maintained:

• compliance with factory xenon headlight operating parameters,
• cooperation with safety and comfort systems related to lighting,
• consistent operation with other components of the Front Lighting system.

Performance characteristics and advantages of use

Choosing this Headlight Module Mercedes W164 W209 W211 Xenon Ballast Control Unit allows for restoring proper headlight operation in the event of faults related to lamp ignition, unstable lighting, or issues with the cornering function. This component is particularly important in vehicles where clear road illumination and maintaining the factory safety standard are priorities.

Key benefits include:

• restoring correct lighting system operation without interfering with the headlight structure,
• maintaining the original lighting characteristics intended for W209 and W211 models,
• possibility of diagnostics and servicing in accordance with the vehicle manufacturer's procedures.

Product condition and service application

The offered module is a used item, which makes it an attractive service solution for users looking for original components on a reasonable budget. This type of part works well both for routine repairs and for restoring full lighting system functionality after collisions or electrical failures.

Due to the module's factory origin, it can be integrated into the existing system without the need for additional adapters or installation modifications, which facilitates work for workshops specializing in the Mercedes brand.

Expanding the Front Lighting system in Mercedes

If you are planning a comprehensive repair or upgrade of the front lighting area in your Mercedes and need other elements from the same group, such as headlights, control modules, or additional lighting accessories, check out the available parts in the Mercedes Front Lighting category.

Technical support and component selection

When selecting xenon system components, it is worth paying attention to structural compatibility and proper fitment for the specific headlight version. For users who want to deepen their knowledge on the selection and replacement of lighting components, an article describing the practical aspects of working with LED and xenon headlights may be helpful – you can find it here: See more and better – a complete guide to selecting and replacing used LED and Xenon headlights.