Mercedes Sprinter W907 W910 Wiring Cable Plug OBD Socket A2025405981 A9070005999

The OBD socket plug wiring harness for Mercedes Sprinter W907/W910 is an original part from the Electronic control units and controllers group, designed for professional vehicle diagnostics. It ensures a stable connection between the OBD socket and the electrical system, which is crucial for proper communication with service testers and diagnostic tools.

Specifications and technical data

• SKU: A2025405981
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2025405981
• Substitutable numbers: A2025405981, A 202 540 59 81, A9070005999
• Category: ECUs & Computer Modules

Purpose and Function in the Sprinter's System

This OBD socket plug wiring harness has been specifically designed for Mercedes Sprinter W907 and W910 models, where diagnostic bus communication is fundamental for the operation of all modern electronic systems. The component is responsible for safely routing signals from the OBD socket to the appropriate control units, enabling error code reading, live data monitoring, and service procedures.

Thanks to its factory design and compatibility with the Sprinter's electrical architecture, the harness maintains the original wiring layout, proper shielding, and correct pin assignments in the diagnostic socket.

Benefits of Using an Original OBD Harness

Using an original component in the diagnostic area offers tangible technical advantages:

• reliable connection with service testers and OBD devices,
• stable communication with the vehicle's control modules,
• preservation of the original electrical system topology,
• reduced risk of communication errors and data transmission interruptions.

For workshops and commercial fleets, this translates to more efficient diagnostics, faster fault localization, and a lower risk of issues arising from improperly modified wiring.

Component Condition and Service Application

The offered harness is from a Mercedes vehicle and is classified under the Electronic control units and controllers group, highlighting its importance in the vehicle's diagnostic system. As a used part, it presents an attractive cost-effective solution while maintaining original build quality and compatibility with the factory installation.

Replacing the OBD socket harness is recommended, for example, in cases of mechanical damage to the socket, diagnostic communication problems, signs of overheating contacts, or previous unprofessional repairs to the wiring near the service connector.

Selection and Compatibility with Part Numbers

The component has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification in service catalogs and parts selection systems. This allows for quick verification of compatibility with a specific Sprinter W907/W910 equipment version, avoiding issues with fitting the harness to the existing wiring.

In workshop practice, this means direct installation in place of the damaged component, without the need for wire modifications, pin changes, or adapters.

Further Knowledge and Related Products

If you are planning a comprehensive repair or upgrade of the diagnostic and electronic area in your Mercedes and need other parts from the same group, such as signal harnesses, service connectors, or communication modules, check the available parts in the Mercedes Electronic control units and controllers category.

To better understand how original electronic components influence the character and functionality of modern premium cars, it is worth reading the article on our blog: Audi and pure emotion – how used parts help maintain the brand's DNA. Although it concerns a different brand, it effectively illustrates the importance of using factory modules and harnesses in vehicles equipped with extensive electronics.