Audi A4 B9 Sedan Rear Tail Light Lamp LED Wiring Outer Right O/S 8W5945092AA

Audi A4 B9 Sedan Rear Tail Light Lamp LED Wiring Outer Right O/S is an original electrical installation component designed for the rear right lamp in the Audi A4 B9 generation sedan. Thanks to its factory-fit design, the wiring harness ensures a secure electrical connection, stable lighting operation, and compliance with the manufacturer's safety standards. It is a practical solution for post-collision repairs, lamp replacement, or damage to the factory installation.

Specifications and technical data

• SKU: 8W5945092AA-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W5945092AA
• Substitutable numbers: 8W5945092AA, 8W5 945 092 AA, 8W5945092AC, 8W5 945 092 AC
• Location on the vehicle: Rear, Right
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function in the vehicle

The presented wiring harness belongs to the Wires, harnesses, and connectors group and has been designed specifically to support the rear right outer lamp in the Audi A4 B9 Sedan. It is responsible for transmitting signals from the vehicle's electrical system to individual lighting circuits, enabling the correct operation of position lights, brake lights, turn signals, or reversing lights – in accordance with the configuration of the installed lamp.

The placement on the vehicle in the rear right zone means that the wiring harness is matched in length, routing, and connector type to the factory installation path in the sedan body. This allows for installation without modifications, maintaining the original geometry of the wire routing.

Construction, compatibility, and technical advantages

As an Audi brand component, the wiring harness is constructed in accordance with the vehicle manufacturer's requirements regarding wire cross-sections, insulation, and connector standards. Properly selected plugs minimize the risk of contact looseness, terminal overheating, and lighting operation interference.

Key advantages of this solution include:

• factory fit for the rear right outer lamp in the Audi A4 B9 sedan,
• preservation of the original wire routing path in the body,
• compatibility with the vehicle's electrical system without the need for harness modifications,
• consistency with the electrical parameters of the lighting system.

An additional advantage is the presence of dedicated part numbers and interchangeable numbers (visible in the specification), which facilitates verification of compatibility with the specific vehicle equipment configuration.

Condition, service application, and installation

The item is offered as used, which allows for an economical repair of the lighting system while maintaining original build quality. In practice, the wiring harness will prove particularly useful in situations such as:

• repair after mechanical damage or contact corrosion in the original installation,
• replacement of the rear right lamp requiring a complete, compatible wiring harness,
• restoring the factory configuration after previous, unprofessional installation modifications.

The placement on the vehicle described as Rear - right makes it easier to identify the correct component when selecting parts. Installation, while observing basic safety rules for working with electrical systems, is a standard service operation: after disconnecting the battery, the harness is connected to the factory connectors in the body and the lamp, without the need for soldering or creating adapters.

Selecting the correct wiring harness and purchase support

To ensure full compatibility with the vehicle, it is worth comparing the part markings and interchangeable numbers visible in the specification section with service documentation or the currently installed component before purchasing. In case of doubt, verifying the body version (sedan) and the installation side (rear, right) may also be helpful.

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Audi and need other components from the same group, such as additional harnesses, connectors, or wire sections, check the available parts in the Audi Wires, harnesses, and connectors category.

Why choose this wiring harness

Audi A4 B9 Sedan Rear Tail Light Lamp LED Wiring Outer Right O/S is a solution that allows you to restore the proper operation of the rear right lighting while maintaining the manufacturer's standards. Its original origin, fit for a specific mounting location, and compatibility with the factory installation make it a practical choice for repairs and rebuilding the electrical system in this model.

By using a dedicated wiring harness, you reduce the risk of problems with light control system errors, lighting flickering, or connector overheating. This is a beneficial solution both for workshops specializing in the Audi brand and for individual users who expect stable, predictable lighting system operation after a repair.