Audi S3 8Y Rear Tail Trunk Inner Lamp Light Wiring Loom Right O/S 8Y0945308

Audi S3 8Y Rear Tail Trunk Inner Lamp Light Wiring Loom Right O/S is an original lighting system component designed to support the inner lamp in the trunk lid. Thanks to its factory-fit design for this specific S3 generation, it ensures a reliable electrical connection, stable lighting performance, and full compatibility with the vehicle's factory wiring. It is a practical solution for post-collision repairs, lamp replacement, or damage to the original wiring harness.

Specifications and technical data

• SKU: 8Y0945308-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8Y0945308
• Substitutable numbers: 8Y0945308, 8Y0 945 308
• Location on the vehicle: Rear, Right
• Part type: Rear Light Assembly
• Category: Rear Light Assemblies

Purpose and function in the vehicle

The presented wiring loom is designed for installation in the rear of the vehicle, on the right side, where it supports the inner lamp in the trunk lid. It is responsible for transmitting signals to the tail light and brake light, ensuring the lighting system operates correctly according to Audi's manufacturer requirements.

Thanks to its factory design, the wiring loom works with original connectors and mounting brackets, which facilitates service and reduces the risk of installation errors. This is particularly important in modern models, where the lighting system is integrated with safety and onboard diagnostic systems.

Construction and technical fitment

The component has been developed as part of the Tail lights and brake lights system in the Audi S3 8Y, which is why its geometry, wire length, and connector types are tailored to the specific bodywork and trunk lid layout. The connectors used are compatible with the original inner lamp, allowing for installation without any modifications to the wiring.

Factory wire routing minimizes the risk of abrasion, short circuits, and moisture-related issues, while the proper positioning of the loom in the trunk lid hinge reduces mechanical stress during daily opening and closing of the lid.

Service application and benefits of installation

The wiring loom is particularly useful in situations involving:

• damage to wires in the lid hinge (cracks, circuit breaks),
• post-accident repairs of the rear body section,
• replacement or upgrade of the inner trunk lamp on the right side,
• issues with intermittent tail light or brake light failure.

Using an original wiring loom allows you to maintain the integrity of the electrical system with the rest of the vehicle, which facilitates computer diagnostics and eliminates the need for makeshift wire repairs.

Product condition and practical aspects

The offered item comes from disassembly, meaning it is a used part that is still suitable for further use in a vehicle. In practice, this allows for an economical repair of the lighting system while maintaining the original Audi specification. It is recommended that installation be performed by a person with experience in working with vehicle electrical systems to ensure proper wire routing and correct connector engagement.

Expanding the Audi lighting system

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 combination lamps, control modules, or additional wiring, check out the available parts in the Audi tail lights and brake lights category.

For a comparison of solutions used in the premium segment and ways to optimize repair costs using parts from disassembly, it is worth reading an article describing a practical approach to used components in high-end cars: Used parts for Mercedes – original parts from disassembly.