Audi A4 B8 Rear Door Taillight Lamp Wire Harness Loom Cable Right O/S 8K5945094D

Audi A4 B8 Rear Door Taillight Lamp Wire Harness Loom Cable Right O/S is an original electrical installation component designed to support the right rear lamp in the door of this model. Thanks to its factory-fit design, the harness ensures a stable electrical connection, reduces the risk of lighting errors, and facilitates professional repair of the rear lighting system. It is a practical solution for workshops and users who want to restore full lamp functionality without modifying the installation.

Specifications and technical data

• SKU: 8K5945094D-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K5945094D
• Substitutable numbers: 8K5945094D, 8K5 945 094 D
• Location on the vehicle: Rear, Right
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Purpose and function of the harness

The presented harness belongs to the Wires, harnesses, and connectors group and is responsible for power supply and signal transmission to the right rear lamp located in the rear door. Proper cable routing and factory connectors allow for:

• a secure connection to the lamp without the need for soldering or creating custom adapters,
• maintaining proper communication with the vehicle's electrical system,
• reducing voltage drops and interference in lighting operation,
• easier diagnostics of potential faults in the rear lamp area.

Construction and fitment for Audi A4 B8

The harness has been designed specifically for the Audi A4 B8 model, which translates into correct cable routing within the rear door and proper placement of connectors. The vehicle location specified as rear – right side eliminates the risk of installation errors and facilitates the work of a mechanic or automotive electrician. Thanks to the factory geometry of the wires and the appropriate length of the sections, the harness does not require modification, and the installation can be carried out in an orderly manner, maintaining the original mounting points and installation routing.

Benefits of using an original harness

Using a dedicated rear lamp wire harness in the Audi A4 B8 allows you to avoid problems typical of "from scratch" installations. The most important advantages include:

• Compatibility with the factory installation – connectors and wire layout are adapted to the vehicle's original components.
• Stable operation of rear lighting – proper power supply and signal transmission minimize the risk of errors and lamp flickering.
• Time savings during repair – no need to modify the harness or adapt universal solutions.
• Aesthetic installation routing – wires run according to factory paths, which facilitates future service.

Condition and service application

The item is offered as a used part, making it an attractive solution for maintenance repairs and restoring the lighting system's efficiency after a collision or mechanical damage. Replacing the harness is particularly recommended in situations where wires have been chafed, contacts have corroded, or previous owners have performed improper repairs.

Expanding the installation in the rear body area

If you are planning a comprehensive repair or upgrade of the rear body area in your Audi and need other elements from the same group, such as additional harnesses, wires, or lamp connectors, check the available parts in the Audi wires, harnesses, and connectors category.

Technical support and service knowledge

When working with electrical installations and other vehicle components, it is worth using reliable sources of knowledge. For users interested in a broader context of repairs and operation of drivetrain components, the guide article Gearbox: manual, automatic, or DSG – typical faults and a guide to buying a used gearbox may be useful, which helps in better planning service work on the car.