Mercedes W204 Headlight Level Sensor Leveling Control Unit Module A1669007101

Mercedes W204 Headlight Level Sensor Leveling Control Unit Module is an advanced component of the front lighting system, responsible for precise control of headlights using ILS (Intelligent Light System) technology. This component from the Front lights category ensures the proper operation of low beam, high beam, and adaptive lighting functions, supporting safe and comfortable driving. As an original Mercedes part, the module is structurally matched to the vehicle's electrical system.

Specifications and technical data

• SKU: A1669007101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1669007101
• Substitutable numbers: A1669007101, A 166 900 71 01
• Category: Headlight Assemblies

Function and role of the ILS headlight control module

The ILS headlight control module in the Mercedes W204 is responsible for managing the operation of the front headlights, including the logic of light performance in various road conditions. It integrates signals from vehicle sensors and onboard systems to properly control the light beam, lighting angle, and headlight operating modes. Thanks to this, the lighting system operates stably, and the driver receives clear and uniform road illumination.

Compatibility and identification parameters

The offered controller belongs to the group of elements dedicated to Front lights systems in Mercedes vehicles. Part identification is based on the OEM number and associated interchangeable numbers, which facilitates the selection of the correct module for a specific car configuration. The product description also includes data such as SKU, brand designation, and condition information, allowing for quick verification of compatibility with the sought-after component.

Performance characteristics and advantages of the solution

The ILS headlight control module has been designed as a factory system element, allowing it to work with the electrical installation without the need for modifications. Using an original controller allows for maintaining the full functionality of the ILS system, including smooth switching of lighting modes and proper communication with other controllers in the vehicle. This solution is particularly beneficial for diagnostics and service, as it facilitates work with factory service software.

Product condition and service application

The presented module is an aftermarket part, which provides an attractive cost alternative to new components while maintaining the original design and purpose. This type of controller is suitable both for standard replacement of a damaged element and for restoring full lighting system efficiency after accident repairs or headlight upgrades. A properly selected module helps reduce the risk of communication errors in the vehicle network and problems with front light operation.

Support with selection and expansion of the lighting system

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Mercedes and need other elements from the same group, such as headlights, ballasts, or height adjustment modules, check the available parts in the Mercedes Front lights category.

For drivers interested in a broader perspective on the cost-effectiveness of purchasing aftermarket parts, an article describing the benefits of using used components in premium segment cars may be helpful – you can find it here: Used parts for BMW – is it worth it? Key benefits for brand fans.