Mercedes R171 W221 C219 Bulb Socket Light Headlight Lamp A0018263382

Mercedes R171 W221 C219 Bulb Socket Light Headlight Lamp is an original front lighting system component designed for factory Mercedes headlights. It ensures stable bulb seating and a secure electrical connection, which translates into proper light operation and safety when driving after dark.

Specifications and technical data

• SKU: A0018263382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0018263382
• Substitutable numbers: A0018263382, A 001 826 33 82
• Part type: Light Bulb
• Category: Light Bulbs & LEDs

Purpose and function of the bulb socket

The presented bulb socket is a component mounted in the front headlight, responsible for the mechanical stabilization of the light source and a reliable connection to the vehicle's electrical wiring. Thanks to its precisely selected geometry and connectors matched to the factory headlight, the component allows for maintaining the correct beam angle and proper light beam focal length.

A properly selected socket reduces the risk of contact overheating, light flickering, or intermittent power supply interruptions, which is important for both comfort and compliance with vehicle lighting regulations.

Construction and fitment to the headlight

The element has been designed as part of the front headlight installation, taking into account the specific construction of the light housing in selected Mercedes models. The contact layout and mounting method are adapted to the factory lamp body, which facilitates installation and minimizes the risk of damaging the housing during replacement.

The socket works with the vehicle's electrical system in the manner intended by the manufacturer, maintaining current conduction parameters and resistance to typical thermal loads occurring in the headlight area. As a result, it can be used as a service component for front lighting system repairs.

Benefits of using an original socket

Using an original bulb socket in the front lamp provides a number of practical benefits:

• maintaining factory fitment to the headlight and electrical wiring,
• stable bulb mounting, reducing vibrations and the risk of looseness,
• proper light beam guidance, essential for safety and driving comfort,
• possibility of using the element as a service part for lighting system repairs.

For the user, this means predictable light operation, no need for installation modifications, and easier diagnostics of potential faults in the future. In the context of vehicle operation, electrical connection stability and resistance to operating conditions in the headlight chamber are particularly important.

Condition and service application

The element comes from disassembly and is intended for re-installation in the front headlight as a replacement part during repair or modernization of the lighting system. It can be used both when replacing a damaged socket and when completing a lamp after bodywork and paint repairs.

In workshop practice, such a socket allows for restoring the full functionality of the headlight without the need to purchase a complete lamp, which is cost-effective and beneficial from a service perspective, especially in the case of vehicles equipped with complex lighting systems.

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 housings, control modules, or additional lighting accessories, check the available parts in the Mercedes Lamps and LED Lights category.

Technical support and selection of lighting elements

When working with headlights and their accessories, it is worth paying attention to the compatibility of the components used and proper installation to avoid problems with light intensity and distribution. Additional tips on selecting and replacing lighting elements, including LED headlights and Xenon systems, can be found in the article: See more and better – a complete guide to selecting and replacing used LED and Xenon headlights.