Mercedes W447 Rear Bumper Wiring Loom Parking Sensor Cable Harness A4475408550

Mercedes W447 Rear Bumper Wiring Loom Parking Sensor Cable Harness is an original electrical installation component, belonging to the Wires, harnesses and connectors group. Designed specifically for the rear body section, it ensures a stable connection between the parking sensors and the control module, which translates into reliable operation of the parking assistant system. It is a practical service solution for post-collision repairs, bumper replacement, or damage to the factory installation.

Specifications and technical data

• SKU: A4475408550
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A4475408550
• Substitutable numbers: A4475408550, A 447 540 85 50
• Location on the vehicle: Rear
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The presented harness is designed for installation in the rear section of the Mercedes W447 series van/commercial vehicle, in the bumper area. It is responsible for transmitting signals from the parking sensors to the vehicle's electronics, enabling the correct operation of the obstacle warning system behind the car.

Thanks to its factory fit for the specific body generation, the harness maintains the correct cable routing geometry, which reduces the risk of abrasion, tension, and improper positioning within the bumper.

Construction and technical advantages

As an element from the Wires, harnesses and connectors group, the product includes a set of wires with appropriately selected connectors for parking sensors and the connection to the vehicle's installation. The arrangement of the branches corresponds to the factory mounting points in the rear bumper, which facilitates service and shortens repair time.

Key technical advantages include:

• factory compatibility with the rear body zone of the Mercedes W447,
• dedicated connectors for parking sensors,
• cables routed in a way that limits exposure to mechanical damage,
• suitability for use when replacing a damaged installation after a collision or wire corrosion.

Service application and installation

The harness will prove particularly useful in situations where:

• the rear bumper has been damaged and the factory wires have been severed,
• parking system errors related to an open circuit in the sensors occur,
• it is necessary to replace the complete sensor installation in the rear part of the vehicle.

The original design facilitates installation in existing mounting points, without the need for modifications to the wiring. This is a practical solution for workshops specializing in body and electrical repairs, as well as for users who want to restore full functionality of the parking system after mechanical damage.

Condition and benefits of choosing a used part

The item is offered as a used part, which allows for an economical repair while maintaining the manufacturer's original specifications. In many cases, a harness dismantled from an intact bumper is a more cost-effective solution than spot-repairing damaged wires, especially when the damage is extensive.

Choosing an original harness from the same model series reduces the risk of issues with connector compatibility, cable length, or mounting placement, which is crucial when working in the rear body zone.

System expansion and related components

If you are planning a comprehensive repair or upgrade of the rear bumper zone in your Mercedes and need other elements from the same group, such as additional wiring sections, harness adapters, or service connectors, check the available parts in the Wires, harnesses and connectors Mercedes category.

For users interested in a broader technical context of vehicles of this brand, including the construction of powertrains and typical components used in all-wheel-drive models, an article comparing AWD solutions from different manufacturers may be helpful: xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi and VW.