Audi A3 8P Trunk Lid Tail Lamp Light Wiring Cable Rear Left N/S 8P4945095E

Audi A3 8P Left Rear Tail Light Wiring Harness is an original electrical installation component designed to service the left rear light in the Audi A3 8P generation. Thanks to its factory design, the harness ensures a correct electrical connection between the light and the vehicle's installation, which translates to stable lighting operation. A used OEM component is a solution that allows for technical repair of the lighting system without the need for installation modifications.

Specifications and technical data

• SKU: 8P4945095E-3
• Mark: Audi
• Condition: Used
• OEM Part Number: 8P4945095E
• Substitutable numbers: 8P4945095E, 8P4 945 095 E
• Location on the vehicle: Rear, Left
• Part type: Wire Harness
• Category: Wiring Harnesses, Cables & Connectors

Harness Purpose and Function

The presented wiring harness is a dedicated component for the left rear light in the Audi A3 8P, mounted in the rear body area. It is responsible for transmitting signals from the vehicle's electrical system to the individual circuits of the light, such as position lights, brake lights, or turn signals (according to the configuration of the installed light). Using an original harness helps maintain the electrical integrity of the system and the proper operating parameters of the lighting.

Construction and Fitment

As a component from the Wires, Harnesses, and Connectors group, the product has been designed for specific sockets and mounting points in the Audi A3 8P. The appropriately shaped wire routing and factory connectors allow for installation in original mounting points, without the need for cutting, soldering, or adapting the installation. This solution minimizes the risk of installation errors and problems with connection resistance.

The harness is prepared for operation in conditions typical for the rear body area, where temperature changes and increased humidity occur. The use of a dedicated light connector and appropriate wire gauge promotes stable power supply to the lighting circuits.

Benefits of Using an Original Harness

Using the factory wiring harness for the left rear light in the Audi A3 8P allows you to:

• maintain compliance with the vehicle's original electrical diagram,
• avoid problems with installation errors resulting from improper modifications,
• reduce the risk of intermittent lighting failures caused by poor connections,
• keep the installation tidy in the trunk and wheel arch area.

A used OEM part is a good choice when the existing harness has suffered mechanical damage, contact corrosion, or insulation overheating. Replacing it with an original harness from the same construction group allows for restoring proper rear lighting operation without interfering with other parts of the installation.

Installation Area and Service Application

The harness is intended for installation in the left rear part of the vehicle, in direct proximity to the light. In service practice, it is used for:

• replacing a damaged light when the existing harness has melted or corroded contacts,
• post-accident repairs in the rear body area,
• diagnosing problems with intermittent lighting on the left side.

Thanks to the preservation of the original wire geometry and the correct selection of connectors, installation proceeds in an organized manner and helps maintain the clarity of the electrical installation in the vehicle.

Expanding Audi Installation – Wires, Harnesses, and Connectors

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

If you are interested in a broader context of selecting original electrical components and construction differences between model generations, an article comparing classic and modern solutions may be helpful, available here: Classic Mini vs. Modern MINI – Differences and OEM Parts.