Mercedes W204 C204 Rear Lamp Bulb Socket Right O/S Tail Light Holder A2048202577

Mercedes W204 C204 Rear Lamp Bulb Socket Right O/S Tail Light Holder is an original lighting system component designed for the right rear lamp in W204 series models. It ensures stable bulb seating and a secure electrical connection, which translates into safe and clear tail lights and brake lights. This is a practical service solution for users who want to restore full lighting functionality without the costly replacement of the entire lamp unit.

Specifications and technical data

• SKU: A2048202577
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048202577
• Substitutable numbers: A2048202577, A 204 820 25 77
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and function of the bulb socket

The presented socket is a component of the Tail lights and brake lights system in Mercedes W204 class vehicles. It is responsible for:

• mechanically holding the bulbs in the correct position in the right rear lamp,
• ensuring a stable electrical contact with the vehicle's wiring,
• proper operation of position lights, brake lights, and other functions provided in the given lamp.

The vehicle placement specified as rear – right side allows for unambiguous identification of where the component should be installed.

Benefits of using an original Mercedes component

Choosing a bulb socket dedicated to the W204 allows you to maintain the factory geometry and operating parameters of the lighting system. Key advantages include:

• secure fit to the right rear lamp without the need for wiring modifications,
• maintaining the correct distribution of light points, which is important for vehicle visibility,
• reducing the risk of overheating or loosening of bulbs thanks to the proper socket design,
• easier diagnostics of potential lighting faults – the component is compatible with the factory wiring architecture.

Such a solution is particularly beneficial for post-collision repairs or in cases where the socket is damaged due to contact corrosion or overheating.

Installation characteristics and service application

The bulb socket for the right rear lamp in the Mercedes W204 is designed as a replaceable component, which facilitates service work in a workshop or during DIY repairs. In practice, this means:

• the possibility of removing the old socket without interfering with the structure of the entire lamp,
• maintaining original mounting points and cable routing,
• consistency with factory electrical connectors.

The used condition allows for an economical repair while maintaining the manufacturer's original specifications, which is a frequently chosen solution for older W204 units.

Application in the Tail lights and brake lights system

A functional bulb socket has a direct impact on the operation of position lights, brake lights, and other functions of the right rear lamp. A correctly selected component:

• minimizes the risk of intermittent lighting failure due to looseness or oxidized contacts,
• makes it easier to maintain uniform brightness of all bulbs in the lamp,
• supports the proper operation of safety systems that use the brake light signal.

Thanks to this, replacing the socket alone is an effective way to restore full functionality of the rear lighting without the need to invest in a complete lamp.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Mercedes and need other components from the same group, such as lenses, lamp modules, or additional holders, check the available parts in the Mercedes tail lights and brake lights category.

For drivers interested in a broader context of lighting upgrades and other components, comparative materials regarding design changes in popular models may be useful – you can find them in the article Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts, which shows how well-thought-out modifications affect vehicle operation.