Mercedes W205 Door Wiring Front Right O/S Harness Loom Cable A2055407401

The Right Front Door Harness for Mercedes W205 is an original wiring loom designed for the passenger side door in W205 generation C-Class models. As a component from the Wires, Harnesses, and Connectors group, it ensures proper electrical connection between the door and the vehicle's body wiring, leading to stable operation of the electrical equipment in this area.

Specifications and technical data

• SKU: rhd-A2055407401
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055407401
• Substitutable numbers: A2055407401, A 205 540 74 01
• Location on the vehicle: Front, Right
• Category: Wiring Harnesses, Cables & Connectors

Vehicle Application and Placement

The offered harness is designed for installation in the front right door (passenger side) of the Mercedes C-Class W205 body. It is responsible for routing signals and power between the body modules and the components located in the door, such as window control, mirror adjustment, or central locking (depending on the specific vehicle's factory configuration).

Thanks to factory-standard wiring and original connectors, the harness maintains the correct cable routing geometry within the door grommets, which reduces the risk of insulation abrasion and electrical system interference.

Technical Characteristics and OEM Advantages

As a component from the Mercedes group, the door harness is manufactured according to the vehicle manufacturer's requirements regarding wire cross-sections, insulation resistance, and the standard of connectors used. This means:

• a secure fit to factory mounting points in the door and pillar,
• compatibility with original body wiring connectors,
• adherence to the factory electrical schematic for the specific vehicle area.

This solution facilitates installation and minimizes the need for modifications to the wiring (no need for harness modifications, soldering, or adapters), which is beneficial for both technical and operational safety.

Condition, Functionality, and Service Application

The door harness is a used part, sourced from disassembly, allowing for economical repair of the electrical system while maintaining original manufacturing quality. This type of component is particularly useful in situations where:

• wires in the grommet between the door and the pillar have been damaged,
• circuits responsible for controlling door equipment have been interrupted,
• post-accident repairs have been carried out on the front right section of the body.

Using an original harness allows for the restoration of correct electrical system operation in the door without the need to build the system from scratch, which reduces repair time and the risk of installation errors.

Support for Body and Wiring Repairs

For more extensive bodywork or paint repairs, or when replacing door components, it is advisable to plan a simultaneous inspection of the wires and connectors. In post-accident repairs where both body parts and wiring are damaged, a practical guide on selecting used parts can be helpful – you can find it in the article Body and Chassis – Post-Accident Repairs Using Used Parts.

Related Mercedes Wires, Harnesses, and Connectors

If you are planning a comprehensive repair or upgrade of the door and front body area in your Mercedes and require other components from the same group, such as additional door harnesses, wiring connectors, or body wire sections, check the available parts in the Mercedes Wires, Harnesses, and Connectors category.