Mercedes Cl203 Taillight Lamp Light Rear Right O/S Harness Loom Wire A2038202664

Mercedes Cl203 Taillight Lamp Light Rear Right O/S Harness Loom Wire is a complete solution for the rear right section of the body, combining the lighting element with the side panel and a dedicated wiring harness. This set allows for an efficient, technically correct replacement of a damaged lighting module while maintaining factory mounting geometry and proper electrical connections. It is a practical choice for post-accident repairs and restoring full functionality to the rear lighting in Mercedes vehicles.

Specifications and technical data

• SKU: A2038202664-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2038202664
• Substitutable numbers: A2038202664, A 203 820 26 64, KD, A2034404913, A 203 440 49 13
• Location on the vehicle: Rear, Right
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function in the vehicle

The presented component is designed for installation in the rear right section of the body, where it is responsible for the proper operation of the lighting and the aesthetic finish of the side panel. The integrated wiring harness enables a secure connection to the vehicle's electrical system, minimizing the risk of installation errors and compatibility issues with the factory setup. Such a solution is particularly beneficial when it is necessary to replace several elements simultaneously – the lamp, the side panel, and the wiring – which often occurs after collisions or in cases of advanced corrosion and mechanical damage in the rear part of the body.

Set construction and benefits of use

Combining the taillight, side panel, and wiring harness into one module ensures:

• consistent fitment of elements to the Mercedes body structure,
• organized cable routing and stable electrical connectors,
• reduction in the number of potential failure points in the connection area,
• easier diagnostics of any lighting faults. Thanks to this solution, a service center or workshop can reduce repair time, and the user gains confidence that the rear right lighting will operate in accordance with the vehicle manufacturer's specifications.

Condition of the component and practical application

The offered component is in used condition, making it a sensible choice for economical car repair, especially in the case of older generations of Mercedes models. A used original part maintains proper fitment to the body and operating characteristics with the vehicle's electrical system, which in practice often translates into better integration than many aftermarket replacements. A set configured in this way will work well both in professional body and paint shops and in service centers specializing in the Mercedes brand, where assembly repeatability, correct geometry, and stable operation of the lighting system are essential.

Support with selection and expanding knowledge

If you are planning a comprehensive repair or upgrade of the rear body area in your Mercedes and need other elements from the same group, such as additional lamps, side panels, or wiring harnesses, check the available parts in the Other Mercedes category. For a better understanding of the structural differences between standard and sports versions, as well as the impact of drivetrain and braking systems on component selection, it is worth reading the blog article Audi RS vs other models – what is hidden under the hood and chassis?, which shows how important properly selected components are in cars with varying performance levels.