Mercedes W203 W211 W220 Height Level Sensor Headlights Adjusting A0105427717

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W203 W211 W220 Height Level Sensor Headlights Adjusting is a component of the headlight leveling system, responsible for the correct adjustment of the light beam relative to the vehicle's load. Thanks to it, the headlights in your Mercedes maintain stable illumination geometry, which improves visibility and driving comfort at night. This used, original sensor is a solution that allows you to maintain the factory operating characteristics of the system without the need for an expensive purchase of a new part.

Specifications and technical data

• SKU: A0105427717
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0105427717
• Substitutable numbers: A0105427717, A 010 542 77 17, BG
• Category: Headlight Assemblies

Function and application of the leveling sensor

The leveling sensor works with the suspension system and headlight control, transmitting information about the current position of the body relative to the axles. Based on this, the control module corrects the tilt angle of the lamps to reduce glare for other road users and ensure a sufficiently long, even beam of light. In Mercedes W203, W211, and W220 models, this is a key element for the proper operation of the automatic front headlight leveling system.

Benefits of using an original component

Using an original sensor in the Front headlights system allows you to maintain compliance with the vehicle's factory specifications. The appropriate electrical and mechanical characteristics translate into:

• stable operation of automatic headlight leveling,
• proper cooperation with the factory controller,
• reduced risk of errors in the lighting system,
• maintenance of proper light distribution on the road.

For the user, this means more predictable vehicle behavior at night and compliance with legal requirements regarding headlight adjustment.

Product characteristics and installation

The offered sensor is a part from the Mercedes group, designed to work with the factory lighting system in selected models of this brand. As a used item, it comes from disassembly and represents an economical alternative to a new component, while maintaining the original design and purpose. Before installation, it is recommended to verify the correct operation and check the electrical harness and mounts in the vehicle.

In practice, installation involves mechanically mounting the sensor at the appropriate point of the suspension and connecting it to the electrical system. After replacement, it is worth performing a light system calibration at a workshop equipped with appropriate diagnostic equipment to fully utilize the capabilities of automatic leveling.

Why choose a used leveling sensor

Choosing a used, original component allows you to significantly reduce the cost of repairing the lighting system while maintaining high build quality. Compared to replacements of unknown origin, the factory sensor offers better compatibility with the vehicle's electronics and predictable operating parameters. This is particularly important in cars equipped with advanced headlight control systems, where the malfunction of one component can generate errors in the entire 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 lamps, control modules, or adjustment motors, check the available parts in the Mercedes front headlights category.

Additional information and technical support

When selecting a headlight leveling sensor, it is worth paying attention to compatibility with the specific body version and vehicle equipment configuration. Data such as the OEM part number, interchangeable numbers, or SKU designation can be helpful, as they facilitate unambiguous identification of the component in service catalogs and parts selection systems.

If you want to better understand how choosing original, used components affects safety and vehicle maintenance costs, check out the guide: Brake calipers under the microscope – how to reduce repair costs by choosing proven recycled parts. The tips contained therein are also helpful when making decisions about purchasing other used components, such as lighting system elements.