Audi A4 B8 Rear Light Lamp Trunk Lid Boot Left N/S Wiring Harness 8H0945095D

Audi A4 B8 Trunk Lid Lamp Wiring Harness Left Rear is an original electrical installation component designed to service the rear lighting on the left side. It enables stable power supply to the lamp in the trunk lid, ensuring correct operation of the parking light, brake light, and turn signal. This is a practical solution for users who want to restore full functionality to the lighting system in their Audi.

Specifications and technical data

• SKU: 8H0945095D-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8H0945095D
• Substitutable numbers: 8H0945095D, 8H0 945 095 D
• Location on the vehicle: Rear, Left
• Part type: Rear Light Assembly
• Category: Rear Light Assemblies

Harness Purpose and Function

The presented wiring harness has been designed specifically for the rear part of the vehicle, on the left side, intended for the lamp located in the trunk lid. It is responsible for the safe transmission of electrical signals between the body's installation and the lighting assembly, which is crucial for the vehicle's visibility on the road and compliance with regulations.

Thanks to its factory fit for the Audi A4 B8 model, the harness allows for maintaining the original wire routing, correct connector placement, and appropriate mechanical strain relief at bending points of the lid. This minimizes the risk of chafing and circuit breaks, often encountered with unprofessional installation repairs.

Construction and Fit for Audi

The trunk lid lamp wiring harness has been configured for specific mounting points in the Audi body, facilitating wire routing through original channels and grommets. The connectors used are prepared to work with the factory lamp sockets and the vehicle's installation, allowing for installation without the need for modifying plugs or soldering wires.

This solution ensures consistency with the factory electrical system, reduces the risk of installation errors, and facilitates future diagnostics. Proper routing of the harness within the trunk lid area is particularly important due to the frequent movement of this component and the resulting mechanical loads.

Benefits of Using an Original Harness

Using a dedicated wiring harness in the rear left part of the vehicle allows for restoring the correct operation of the brake light, parking light, and turn signal without the need to interfere with the main installation. This solution is particularly beneficial for common faults such as:

• intermittent operation of the trunk lid lamp,
• occasional lighting failures when opening or closing the lid,
• lighting error messages on the instrument cluster.

Replacing the complete harness instead of repairing individual wires is often more predictable and allows for permanent problem resolution, especially when damage affects multiple wires or connectors simultaneously.

Product Characteristics and Installation

The component comes from the Rear Lights and Brake Lights group, meaning it has been designed to work with the vehicle's external lighting system. Its placement in the rear left part of the body requires proper routing of the harness through the trunk lid grommet and correct fastening in the holders to avoid excessive wire tension.

During installation, it is recommended to thoroughly check the condition of the lamp sockets and rubber grommets, as well as verify the correct latching of the connectors. A properly installed harness helps maintain factory sealing and protection against moisture, which is important for the long-term reliability of the lighting system.

Technical Support and Additional Information

If you have doubts about selecting the correct part for a specific Audi equipment version, it is advisable to use the manufacturer's codes and vehicle data to ensure full compatibility. For users interested in the broader context of using used electronic and installation components in cars, the Global Parts guide may be useful: Used car electronics on board – why choose second-hand ECU modules and sensors?

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