Mercedes W204 Rear Tail Light Wire Plug Socket Cable Right O/S A2048205864

Mercedes W204 Rear Tail Light Wire Plug Socket Cable Right O/S is an original electrical system component designed to support the right rear tail light in W204 series models. Thanks to its factory design, it ensures a stable electrical connection, reduces the risk of lighting errors, and facilitates professional repair of the rear lighting system in Mercedes vehicles.

Specifications and technical data

• SKU: A2048205864-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048205864
• Substitutable numbers: A2048205864, A 204 820 58 64
• Location on the vehicle: Rear, Right
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function of the wire plug

The described wire plug is responsible for safely supplying power and control signals to the right rear tail light. Its placement in the rear area of the vehicle on the right side allows for precise matching to the factory wiring harness and light socket, without the need for any modifications to the installation.

This component is particularly useful in situations where the original connector has been damaged, contacts have melted, pins have corroded, or wires have been severed due to a collision or long-term wear. Using the correct socket restores the proper operation of:

• position and low beam lights in the tail light,
• brake lights,
• turn signals,
• fog or reversing lights – depending on the specific configuration of the lamp in a given vehicle.

Construction and fitment for Mercedes W204

The wire plug has been designed specifically for the geometry and layout of the rear tail lights in the C-Class W204 generation. The appropriate socket shape and pin layout enable a secure, mechanically stable connection with the right-side tail light, which minimizes the risk of looseness, circuit interruptions, or contact overheating.

Thanks to the use of the original Mercedes design, the wiring harness maintains compatibility with the vehicle's factory electrical schematic. This facilitates diagnostics, voltage measurements, and any potential future service work within the rear lighting area.

Benefits of using the original socket

Choosing a wire plug dedicated to the W204 brings a number of practical advantages in daily vehicle operation:

• Compatibility with the installation – no need to modify the wiring, solder additional sections, or use adapters.
• Stable lighting operation – proper contacts reduce light flickering, dashboard errors, and issues with bulb failure warnings.
• Easier diagnostics – maintaining the factory wiring layout makes work easier for electricians and service centers specializing in the Mercedes brand.
• Aesthetic routing of the installation within the right rear body section.

Condition and service application

The item is a removed part intended for reinstallation in Mercedes W204 vehicles where replacement of the right rear tail light socket is necessary. It is a practical solution for post-accident repairs, mechanical or electrical damage within the rear wiring harness.

During installation, it is recommended to thoroughly check the condition of the lamp contacts, seals, and the housing itself to fully utilize the potential of the newly installed wire plug and ensure reliable operation of the rear lighting in the long term.

System expansion and additional materials

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 additional wiring harnesses, connectors, or lamp housings, check the available parts in the Other Mercedes category.

For a better understanding of the structural differences between sports and standard versions of cars, including the impact of the drivetrain and braking system on component selection, it is worth reading the article on our blog: Audi RS vs other models – what is hidden under the hood and chassis?