Audi A6 S6 C8 Inner Rear Tailgate Tail Light Lamp Wiring Left N/S 4K5945091D

The Audi A6 S6 C8 Rear Interior Light Wiring Harness Left is an original electrical component designed for precise operation of the interior lighting in the rear of the vehicle. With factory-fitted compatibility for Audi A6 and S6 C8 generation models, this harness ensures a correct connection of the lamp to the body's electrical system, reducing the risk of electrical faults. It's a practical solution for post-collision repairs, upholstery replacement, or interior lighting issue troubleshooting.

Specifications and technical data

• SKU: 4K5945091D-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K5945091D
• Substitutable numbers: 4K5945091D, 4K5 945 091 D
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and Vehicle Placement

The presented wiring harness is intended for installation in the rear left part of the Audi A6 / S6 C8 cabin, in the area of the interior lamp. It is responsible for a stable electrical connection between the lighting module and the vehicle's main electrical system, which is crucial for the proper functioning of comfort features and safety when driving after dark.

The placement specified as rear – left side facilitates unambiguous identification of the component during diagnostics and installation, and also minimizes the risk of confusion with other sections of the electrical system.

Technical Characteristics and Compatibility

As a component from the Rear Lights and Brake Lights group, the harness works with the lighting system in the rear of the body, ensuring proper power supply and control signals for the interior lamp. The design based on original Audi connectors allows for plug-and-play installation, without the need for electrical system modifications or adapters.

Key advantages of this solution include:

• factory connectors matched to the rear left interior lamp in Audi A6 / S6 C8,
• appropriately selected length and routing of wires for upholstery integration,
• maintenance of compliance with the manufacturer's electrical system parameters.

Thanks to this, the harness allows for the restoration of correct interior lighting operation after mechanical damage, bodywork interventions, or previous unprofessional electrical repairs.

Component Condition and Service Application

The product is a used part obtained from dismantling and is offered as a used part, providing a cost-effective solution while maintaining original Audi specifications. This type of component is particularly useful in situations where:

• wires have been broken or melted near the rear interior lamp,
• connectors were damaged during upholstery removal,
• a section of the electrical system needs replacement after body and paint repairs.

Using an original wiring harness limits the risk of problems with comfort module communication, flickering lights, or diagnostic system errors.

Benefits of Using an Original Audi Harness

Choosing an original wiring harness for the rear left interior lamp in Audi A6 / S6 C8 offers several significant service benefits:

• guaranteed fitment for the specific model and body version,
• preservation of the factory wire routing, which simplifies installation and eliminates strain on the wiring,
• compatibility with existing mountings and brackets in the body,
• minimal interference with the vehicle's original electrical system.

This makes the repair more predictable, and the risk of subsequent interior lighting-related faults remains low.

If you are planning a comprehensive repair or upgrade of the rear lighting area in your Audi and need other components from the same group, such as taillight assemblies, light modules, or additional harnesses, check the available parts in the Audi Rear Lights and Brake Lights category.

For users interested in the broader context of operating and servicing modern engine units, advisory materials may also be useful, such as an article on servicing the auxiliary equipment of Mercedes C-Class and E-Class engines, available at the link Reliability under the star – how to care for engine auxiliary equipment in popular Mercedes-Benz C-Class and E-Class models?.