Door Cable Mercedes W176 Wiring Loom Front Right Door O/S A1765401404

Right Front Door Wiring Harness for Mercedes W176 is an original door harness designed for factory installation in the right front door of the vehicle. This component belongs to the Cables, Harnesses, and Connectors group and is a crucial part of the door's electrical system, responsible for stable connection of modules, switches, and other consumers in this area.

Specifications and technical data

• SKU: A1765401404
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1765401404
• Substitutable numbers: A1765401404, A 176 540 14 04, KZ
• Location on the vehicle: Front, Right
• Category: Wiring Harnesses, Cables & Connectors

Vehicle Application and Placement

The presented wiring harness is specifically designed for the front right door of the W176 series body, maintaining factory wire routing and mounting points. Its placement in the driver's or passenger's door area (depending on the market) requires precise matching of wire lengths, connectors, and grommets, ensuring correct operation of the door's electrical system without stress or risk of damage during repeated opening and closing.

Technical Characteristics of the Door Harness

This harness belongs to the Cables, Harnesses, and Connectors group, meaning it functions as the central "backbone" of the door's electrical system. The connectors used are factory-matched to the vehicle's installation, allowing for a near plug-and-play installation without the need for modifying the existing wiring or soldering wires.

The appropriately selected wire cross-section and layout minimize voltage drops and interference, which is important for powering components such as control units, switches, and lighting. The harness design is prepared to operate in variable temperature and mechanical conditions typical for the door area (continuous movement, vibrations, moisture).

Benefits of Using an Original Mercedes Harness

Using an original door harness in a Mercedes W176 ensures consistency of the electrical system with the factory service documentation. This facilitates diagnostics, fault localization, and subsequent repairs, as wire colors, pin layouts, and connector types correspond to the manufacturer's diagrams.

• Factory fit for the front right door of the W176 body.
• No need for vehicle wiring modifications.
• Consistency with original electrical schematics.
• Reduced risk of installation errors and module communication issues.

The product is offered as a used original part, providing a sensible compromise between cost and maintaining factory-level build quality and compatibility.

Professional Installation and Service Application

The right front door wiring harness for the Mercedes W176 is particularly useful for accident repairs, replacing damaged doors, resolving electrical issues (e.g., broken wires in the bellows), or restoring full functionality to door equipment. Installation by a person experienced with vehicle electrical systems is recommended, ensuring proper wire routing and connector protection.

Before installation, it is advisable to compare the connector configuration and harness length with the currently installed component to ensure the new harness matches the specific vehicle's specifications. This helps avoid issues with door equipment compatibility.

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

For drivers interested in a broader perspective on common operational issues in modern cars and potential repair costs, the advisory article BMW E90 Engine Failures – What Can Ruin Your Budget may be helpful, illustrating the importance of prevention and a conscious approach to vehicle servicing.