Mercedes W204 Headlamp Headlight Bi-Xenon Lamp Light Front Left N/S A2048204539

Visual condition of the part

The product shows signs of use visible in the photos.

Headlight ballast, control units, bulbs, modules are not included in the sale.

Mercedes W204 Headlamp Headlight Bi-Xenon Lamp Light Front Left N/S is an original lighting solution designed for factory installation in the front body section. It ensures precise light beam guidance, improves visibility after dark, and allows you to restore full functionality to the lighting system in your Mercedes. Thanks to the bi-xenon design, the headlight supports both low and high beams while maintaining a consistent look for the front end.

Specifications and technical data

• SKU: rhd-A2048203739-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048203739
• Substitutable numbers: A2048203739, A 204 820 37 39, A2048204539, A 204 820 45 39
• Location on the vehicle: Front, Left
• Category: Headlight Assemblies

Application and fitment for Mercedes W204

The presented headlight has been designed specifically for Mercedes C-Class W204 generation models, intended for the left side of the vehicle's front. Its placement in the front bumper and fender zone allows for direct installation in place of the factory component, maintaining original mounting points and lamp geometry.

Thanks to the bi-xenon construction, the headlight works with the vehicle's factory lighting system, ensuring consistent light distribution and proper cut-off on the light-shadow boundary. This is particularly important when driving at night, where a properly functioning lamp affects the safety of the driver and other road users.

Bi-xenon headlight construction

The headlight uses bi-xenon technology, where a single module is responsible for generating both low and high beams. Switching is performed via a movable shutter within the module, which allows for fast and stable transitions between operating modes without the need for additional light sources.

The lamp housing is adapted to the factory mounts in the Mercedes W204, and the optical system has been designed to work with the vehicle's original electrical installations. The transparent lens ensures even light dispersion, and the appropriately shaped reflector directs the beam in accordance with homologation requirements for the European market.

Condition, functionality, and benefits of installation

The offered headlight comes from the Front lights category and is a used item, which allows for an economical yet technically correct repair of the lighting system. Maintaining the original OEM design promotes proper fitment with the hood, bumper, and fender, without the need for body modifications.

Replacing a damaged or worn lamp with an original bi-xenon headlight allows you to:

• restore full efficiency of low and high beams on the left side,
• maintain a uniform appearance of the vehicle's front end,
• ensure compatibility with the factory electrical installation and controls,
• minimize the risk of problems with light geometry adjustment.

Why choose an original bi-xenon headlight

By using an original bi-xenon headlight designed for the Mercedes W204, you avoid problems typical of aftermarket replacements, such as inaccurate fitment, different lighting characteristics, or adjustment difficulties. The factory design ensures compatibility with vehicle systems, including leveling and diagnostic units.

For owners of premium segment cars, it is particularly important to maintain consistent aesthetics and lighting parameters in line with the manufacturer's design. A properly selected bi-xenon headlight helps preserve the vehicle's value and reduces the risk of improper light operation during technical inspections.

Expansion and lighting modernization in Mercedes W204

If you are planning a comprehensive repair or modernization of the front lighting zone in your Mercedes and need other elements from the same group, such as lamps for the right side, additional light modules, or complete headlight assemblies, check out the available parts in the Mercedes Front lights category.

If you are interested in a broader context of using used lighting elements and other components when refreshing older premium models, it is worth reading the guide describing practical modernization scenarios and parts selection: The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.