Mercedes W204 W207 Cable Wiring Power Steering Rack Loom Harness A2044400239

The Mercedes W204 / W207 Steering Gear Wiring Harness is an original part from the Cables, Harnesses, and Connectors group, designed for powering and electrically communicating the power steering gear. It's a practical service solution for Mercedes owners looking to restore proper steering system function while maintaining the factory installation logic.

Specifications and technical data

• SKU: rhd-A2044400239
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2044400239
• Substitutable numbers: A2044400239, A 204 440 02 39
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function in the Steering System

The presented harness is an installation component responsible for delivering power and control signals to the electrically assisted steering gear. A correctly selected and functional cable eliminates common issues with the steering gear's operation, such as loss of power assist, communication errors, or unstable system performance.

Thanks to its factory fit for the Mercedes W204 and W207 family models, the harness allows for maintaining the original wire routing, proper mounting, and compatibility with factory connectors, which simplifies installation and reduces the risk of damaging the system.

Construction and Advantages of the Original Mercedes Harness

As a part of the Cables, Harnesses, and Connectors group, the product is designed for stable current load transfer and resistance to engine bay conditions. It includes a section of wiring with dedicated connectors that work with the factory steering gear and the rest of the vehicle's installation.

• Factory connectors matched to the steering gear and vehicle installation.
• Appropriately selected wire length enabling correct harness routing.
• Construction designed for operation in environments with elevated temperatures and exposure to vibrations.
• Solution compliant with the electrical architecture of the Mercedes steering system.

Using an original harness helps avoid makeshift repairs, soldering, and modifications, which often lead to diagnostic problems and reduced system durability.

Condition, Fitment, and Service Application

The item is offered as a used part, providing a cost-effective solution while maintaining the original manufacturer's specifications. For workshops and private users, this means the possibility of repairing the steering system using a component that is compatible with the factory installation design.

The harness is particularly suitable in situations where:

• mechanical damage to the wires near the steering gear has occurred,
• the connectors at the steering gear are corroded or overheated,
• a complete steering gear replacement is necessary and matching wiring is required.

By maintaining the original geometry and mounting points, installation proceeds in an organized manner, and the risk of stress on wires and connectors is minimized.

Benefits of Using the Original Harness in Mercedes W204 / W207

Using this harness in the steering system offers a range of practical service benefits:

• Compatibility with Factory Installation – no need to modify the main harness or create adapters.
• Easier Diagnostics – maintaining the original wire routing simplifies work with service documentation and electrical diagrams.
• Stable Power Assist Operation – proper power supply and communication to the steering gear reduce the risk of control unit errors.
• Solution Compliant with Manufacturer's Design – harness designed specifically for this type of gear and electrical architecture.

Related Parts from the Mercedes Cables, Harnesses, and Connectors Group

If you are planning a comprehensive repair or upgrade of the steering system area in your Mercedes and need other parts from the same group, such as additional power harnesses, signal wire sections, or service connectors, check the available parts in the Mercedes Cables, Harnesses, and Connectors category.

To compare different manufacturers' approaches to original electrical components and maintaining brand character, it's worth reading the article describing the role of factory parts in premium cars: Audi and Pure Emotion – How Used Parts Help Maintain the Brand's DNA.