Door Wiring Mercedes C205 Front Right O/S Door Harness Loom A2055400336

The Mercedes C205 Front Right Door Harness is an original, used door wiring harness designed for the driver's or passenger's outer door on coupe body styles. This component belongs to the Cables, Harnesses, and Connectors group and forms a crucial link between the vehicle's body electrical system and the door hardware. Its factory-designed construction ensures reliable operation of the door's electrical components while maintaining compatibility with the Mercedes electrical system.

Specifications and technical data

• SKU: A2055400336
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055400336
• Substitutable numbers: A2055400336, A 205 540 03 36
• Location on the vehicle: Front, Right
• Category: Wiring Harnesses, Cables & Connectors

Vehicle Application and Placement

This harness is designed for installation in the front right door of the C-Class Coupe (C205) body style. It is responsible for transmitting signals and power between the vehicle's electrical system and the components located within the door, such as control modules, motors, and sensors. Its placement on the vehicle is factory-defined as the front – right side, which facilitates unambiguous identification when selecting parts.

Technical and Functional Characteristics

The door harness falls under the Cables, Harnesses, and Connectors category, meaning it is constructed for stable electrical signal transmission and resistance to typical operational stresses in the door area. The connectors used are factory-matched to the sockets in the door and the B-pillar, allowing for a near plug-and-play installation without the need for electrical system modifications.

Its original manufacturing for the Mercedes brand ensures compatibility with the vehicle's electrical architecture, proper wire routing, and appropriate cable lengths, minimizing the risk of strain and chafing during door operation. Consequently, this harness is suitable for both replacing a damaged component and for professional repairs to the electrical system following an accident or workshop intervention.

Benefits of Using an Original Door Harness

Using the factory door harness in a Mercedes C205 helps maintain the integrity of the electrical system and reduces the risk of malfunctions caused by improper fitment. The key benefits include:

• reliable connection between the body's electrical system and the door hardware,
• factory connectors matched to the front right door,
• preservation of original wire routing within the door seal,
• reduction of potential installation errors compared to universal solutions.

For workshops and owners, this translates to more efficient diagnostics, easier installation, and more predictable performance of the door's electrical systems.

Condition and Service Application

This part is used, making it an attractive option for cost-effective repairs, especially for several-year-old vehicles and Mercedes youngtimers. This type of harness is suitable for:

• replacing damaged door wiring after chafing or water ingress,
• post-accident repairs to the front right section,
• restoring full electrical functionality to the doors of C-Class Coupe models.

By retaining its original construction, the harness aligns with the manufacturer's service standards and allows for maintaining system integrity without additional modifications.

Related Products and Technical Knowledge

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

If you are working on an older Mercedes from the youngtimer era and want to better plan the use of used parts in the vehicle refurbishment process, you will find useful information in the article Second Life for Youngtimers – How Used Car Parts Revitalize Cars from 1998–2012.