Mercedes W203 Saloon Rear Light Right O/S Plug Socket Wiring A2115450328

Mercedes W203 Saloon Rear Light Right O/S Plug Socket Wiring is an original electrical installation component designed to support the right rear lighting in Mercedes vehicles. It ensures a stable connection between the lamp and the vehicle's electrical system, which translates into the proper operation of the position lights, brake lights, and turn signals. This used OEM component is a sensible choice for servicing the factory lighting system without the need for costly replacement of the entire lamp module.

Specifications and technical data

• SKU: A2038202064-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2038202064
• Substitutable numbers: A2038202064, A 203 820 20 64, A2115450328, A 211 545 03 28
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and function of the wiring harness

The presented wiring harness is a component from the Rear lights and brake lights group, responsible for supplying power and control signals to the right rear lamp. The placement on the vehicle, defined as rear – right side, means that the component works with the passenger-side lighting assembly, integrating wires responsible for several lighting functions into one unit.

In practice, such a wiring harness eliminates the need for makeshift installation repairs, allowing for the restoration of the factory wire routing, proper shielding, and correct connector termination. This is particularly important in vehicles where the lighting system is monitored by comfort control modules – incorrect connections can cause dashboard errors or unstable lamp operation.

Compatibility and component identification

The wiring harness has been designed specifically for Mercedes W203 series models, taking into account the body geometry and factory wire routing in the trunk. Proper matching of lengths, wire cross-sections, and connector types allows for installation without modifications, which reduces the risk of installation damage and shortens service time.

The component has a dedicated OEM part number and associated interchangeable numbers, allowing it to be precisely verified against service documentation or the manufacturer's catalog. This facilitates the selection of the correct wiring harness for a specific vehicle configuration, especially in the case of differences resulting from equipment versions or the target market.

Installation characteristics

The wiring harness intended for the rear right side of the vehicle is prepared for installation in factory mounting points, which allows for maintaining the original wire routing and minimizes the risk of chafing or mechanical damage. The connectors used are compatible with the factory lamp and the vehicle's installation, so the assembly comes down to correctly plugging in the connectors and laying the wires in the existing guides.

The used component allows for an economical repair of the lighting system in situations where wires have been damaged, contacts have overheated, or the installation has been tampered with during previous repairs. Maintaining the original electrical architecture is crucial for proper cooperation with the vehicle's control modules and diagnostic systems.

Benefits of using an original wiring harness

• Restoration of the factory installation routing in the rear right part of the vehicle.
• Compatibility with original Mercedes lamps and lighting controllers.
• Reduced risk of errors in the light control system and warning messages.
• Reduction of the need for soldering and custom-making wires in workshop conditions.

By using an original wiring harness, you can orderly restore the efficiency of the lighting system, which is important both for driving safety and for the vehicle's compliance with regulations regarding the efficiency of external lights.

Expanding rear lighting service in a Mercedes

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Mercedes and need other elements from the same group, such as combination lamps, control modules, or bulb sockets, check the available parts in the Mercedes rear lights and brake lights category.

If you are also interested in a broader approach to vehicle modification in terms of performance and sound, it is worth checking out the guide on the exhaust system and the selection of used components – you will find it in the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which may complement the planned service work on your Mercedes.