Mercedes C117 Door Wiring Harness Cable Front Passenger's Side N/S A1175406303

The Mercedes C117 Front Passenger Door Wiring Harness is an original electrical installation component designed for installation in the front passenger door. Thanks to its factory fit to the Mercedes body structure, the harness ensures stable electrical connections and proper communication between the door modules and the rest of the vehicle, which translates to trouble-free operation of door equipment.

Specifications and technical data

• SKU: A1175406303
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1175406303
• Substitutable numbers: A1175406303, A 117 540 63 03
• Location on the vehicle: Front
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and Function of the Door Harness

The presented harness belongs to the Wires, Harnesses, and Connectors group and is dedicated to the front passenger door area of the Mercedes C117 body. It is responsible for transmitting signals and power between the vehicle's main electrical system and the components located in the door, such as window controls, central locking, and other electrical consumers provided by the manufacturer.

The factory design of the harness allows for maintaining the correct routing of wires within the door, which minimizes the risk of insulation abrasion, damage from repeated door opening, and interference with electrical systems.

Construction and Body Fit

The harness has been specifically designed for installation in the front passenger door area, taking into account the factory mounting points and grommets in the body structure. The appropriately selected wire length, connector placement, and geometry allow for installation without modifications, which is particularly important for maintaining the sealing of grommets and the correct arrangement of wires in the door.

Original connectors are prepared for compatibility with factory door modules and accessories, which reduces the risk of installation errors and compatibility issues. This makes the harness a beneficial solution for repairs after collisions, mechanical damage to the door, or electrical system failures in this area.

Application in Repairs and Diagnostics

Replacement of the door harness is recommended in situations where:

• there are interruptions in the operation of the passenger side electric door functions,
• wire insulation is damaged due to use or mechanical interference,
• there are problems with the communication of door modules with the vehicle's electrical system.

Using an original harness dedicated to a specific body model helps reduce diagnostic time and restore proper system operation without the need for electrical system modifications. This is a practical solution for both workshops specializing in the Mercedes brand and for owners who want to maintain the vehicle's original electrical structure.

Product Characteristics and Condition

The offered harness belongs to the Mercedes brand, which means compliance with factory manufacturing standards and compatibility with the vehicle's electrical architecture. The item is from the group of used components, making it an economical alternative to new parts while maintaining its original construction and purpose.

Its placement on the vehicle is specified as front, which clearly indicates its application in the front passenger door. This designation facilitates part selection during post-accident repairs and when replacing damaged sections of the electrical system in a specific body area.

Support for Selection and Expanded Repair Scope

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

When planning more extensive service work on the vehicle, including other systems, you may find the guide materials on selecting used components and their impact on operation helpful. In this context, it is worth reading the article Standard vs. Sport Suspension – Construction Differences and Is It Worth Buying Used Suspension Parts?, which discusses the practical aspects of using used parts in vehicles and can serve as a reference point when deciding on the use of used electrical system components.