Mercedes-Benz W221 Bi-Xenon Headlight Lamp Front Left N/S Night View A2218201539

Mercedes-Benz W221 Bi-Xenon Headlight Lamp Front Left N/S Night View is an original component from the Front lights group, designed for installation on the front left side of the vehicle. It provides precise road illumination, improves visibility at night, and supports the Night View system, which translates into a higher level of safety and driving comfort in S-Class W221 models.

Specifications and technical data

• SKU: rhd-A2218202139
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2218202139
• Substitutable numbers: A2218202139, A 221 820 21 39, A2218201539, A 221 820 15 39, 030125268336, 0 301 252 683 36, KZ
• Location on the vehicle: Front, Left
• Category: Headlight Assemblies

Application and vehicle function

The bi-xenon headlight for Mercedes-Benz W221 is responsible for intense and uniform illumination of the front lane, while simultaneously reducing glare for other road users. Its placement on the front left side makes it a key element of the lighting system, working in conjunction with the right headlight, sensors, and vehicle electronics.

Integration with the Night View system allows for more effective use of infrared technology and cameras, providing the driver with a clearer image of road conditions in low-visibility situations. This solution is particularly appreciated by users who frequently drive long distances at night or travel on poorly lit roads.

Construction and bi-xenon technology

The headlight utilizes bi-xenon technology, where a single light source module handles both low and high beams. This results in a stable light beam, a precise cut-off line, and better illumination of the road shoulders compared to classic halogen headlights. The lamp's construction is optimized for the aerodynamics of the W221 body and compatibility with factory leveling and control systems.

The original design dedicated to the S-Class guarantees proper light distribution, compliance with homologation standards, and a perfect fit for the bumper, hood, and fender. As a result, the consistent styling line of the vehicle's front is maintained after installation, without the need for additional modifications.

Benefits of choosing an original used headlight

The offered headlight comes from the Mercedes brand, which means full compliance with factory quality and safety standards. A used component allows for economical vehicle repair while maintaining original lighting technology, without the compromises typical of cheaper replacements. This is particularly important for advanced systems such as Night View, where manufacturing precision and compatibility have a direct impact on the operation of the entire system.

Thanks to the factory fit for the S-Class W221, the headlight works with the existing electrical installation, control modules, and self-leveling system, which facilitates installation and reduces the risk of diagnostic errors. Choosing an original used component is a sensible solution for drivers who want to maintain full vehicle functionality at controlled service costs.

Installation and fitment for Mercedes-Benz W221

The headlight has been designed specifically for the W221 body, ensuring that mounting points, housing geometry, and connection sockets are consistent with Mercedes factory solutions. Its placement on the vehicle as a front left element allows for clear identification of the installation side and minimizes the risk of errors when selecting parts.

Before purchasing, it is worth verifying compatibility with the specific vehicle's equipment (presence of bi-xenon and Night View system) to ensure full integration with the vehicle's electronics. A properly selected headlight facilitates service work, shortens installation time, and reduces the risk of needing additional adaptations.

Lighting system expansion and technical knowledge

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 lenses, control modules, or complete lamps, check the available parts in the Mercedes Front lights category.

To better plan your purchases and learn about the advantages of sourcing original used components in one place, it is worth reading the guide describing the One-Stop-Shop strategy and the differences between originals and cheap replacements: Comprehensive sourcing of used car parts.