Mercedes A45 AMG W176 Door Wiring Loom Harness Wire Rear Left N/S A2465407811

Mercedes A45 AMG W176 Door Wiring Loom Harness Wire Rear Left N/S is an original electrical installation component designed for the rear left body zone. As a part of the Wires, harnesses and connectors group, it ensures a proper electrical connection between the body modules and the door equipment. Using an OEM component allows you to maintain factory installation logic and reduce the risk of compatibility issues.

Specifications and technical data

• SKU: A2465407811
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2465407811
• Substitutable numbers: A2465407811, A 246 540 78 11
• Location on the vehicle: Rear, Left
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The described harness is dedicated to the rear left part of the body in the Mercedes A45 AMG W176 model, where it is responsible for transmitting signals and power between the door and the rest of the vehicle's installation. Its placement in the rear door area means it supports elements such as electric controls, lighting, or sensors, in accordance with the factory configuration of a specific vehicle.

Thanks to the preservation of the original cable routing geometry, connectors, and mounting points, the installation proceeds in an orderly manner, without the need for modifications to the wiring. This solution is particularly beneficial for post-collision repairs, replacing a damaged harness, or restoring full functionality to the door electrics.

Construction and advantages of using an original harness

The door wiring harness has been designed by the vehicle manufacturer with a specific body model in mind, which translates into:

• appropriate length and routing of wires adapted to the rear left side of the vehicle,
• factory connectors compatible with door modules and equipment,
• consistency with the existing electrical installation without the need for adaptation.

Using an original harness from the Wires, harnesses and connectors group reduces the risk of communication errors between modules, circuit resistance problems, or accidental short circuits resulting from improper fitting of universal replacements.

Condition, installation and service application

The item is offered as a used part, which allows for economical repair while maintaining the manufacturer's original specifications. This is a practical solution in situations where there has been damage to the door installation, broken wires in the grommet, or electrical communication problems on the rear left side.

The harness is intended for installation in factory mounting points, using the original cable routing paths. With proper installation, it is possible to restore full functionality of the controls and power supply for elements located in the door without interfering with the main vehicle installation.

Why choose a used OEM harness

Choosing an original door harness in a used version is a compromise between costs and maintaining the factory parameters of the installation. This type of component:

• maintains compatibility with Mercedes electrical architecture,
• allows you to avoid modifications and soldering additional wire sections,
• promotes quick restoration of system efficiency in the rear left body zone.

For workshops and users looking for a cost-effective solution, a used OEM part is often more predictable than universal replacements, especially in such a sensitive area as the door electrical installation.

Expanding repairs within the Mercedes electrical installation

If you are planning a comprehensive repair or upgrade of the body electrical installation zone in your Mercedes and need other elements from the same group, such as additional harnesses, wire sections, or connectors, check the available parts in the Mercedes wires, harnesses and connectors category.

If you want to better plan your service budget and understand when it pays to reach for used OEM elements, an article describing strategies for saving on repairs may be helpful – you can find it here: Rising repair costs and the boom in used parts – how to save on car service?.