Audi A4 B8 Rear Tailgate Hatch Boot Lid Inner Bulb Mount Left N/S 8K5945257B

Audi A4 B8 Rear Tailgate Hatch Boot Lid Inner Bulb Mount Left N/S is an original part from the Rear lights and brake lights group, designed for installation on the left rear side of the vehicle. This component ensures the correct seating of bulbs in the inner part of the rear lamp, providing a stable electrical connection and proper lighting operation.

Specifications and technical data

• SKU: 8K5945257B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K5945257B
• Substitutable numbers: 8K5945257B, 8K5 945 257 B
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and function of the component

The presented bulb mount is dedicated to the rear inner lamp section on the left side of the Audi A4 B8 generation. It is responsible for holding the bulbs in the correct position and ensuring their secure connection to the vehicle's electrical system. This allows the rear lighting system – including position lights, brake lights, or turn signals – to operate stably and in accordance with the manufacturer's specifications.

Its placement at the rear of the vehicle on the driver's side makes this component significant for both vehicle visibility and safety during braking or signaling maneuvers.

Benefits of using an original mount

Using an original Audi solution within the rear lamp allows for maintaining factory lighting performance parameters. The mount's design is matched to the lamp's geometry and the manufacturer's mounting points, which facilitates servicing and reduces the risk of looseness, contact overheating, or improper bulb illumination.

The main advantages of this solution include:

• secure seating of bulbs in the socket,
• stable connection with the electrical system,
• preservation of the factory lighting characteristics of the rear lamp,
• easier diagnostics and potential bulb replacement.

Product characteristics and installation

The item comes from an Audi vehicle and is compatible with the factory specifications of the A4 B8 model regarding rear lighting. Its location in the rear left part of the body means the mount works with the inner lamp segment responsible for specific lighting functions. This configuration allows for consistency with other lighting system components.

The product is intended for installation in place of the factory mount, which promotes maintaining the original lamp geometry and minimizes the need for additional modifications. In practice, this translates to efficient service and reduced risk of fitment issues.

Use in repairs and upgrades

This type of bulb mount is suitable both for standard repairs of a damaged rear lamp and for work related to refreshing or retrofitting lighting in an Audi A4 B8. Replacing a worn or damaged element with an original component helps restore proper light operation, which is important for safety and compliance with traffic regulations.

If you are planning broader work related to retrofitting or upgrading your vehicle based on components from higher equipment versions, it is worth checking out the guide on retrofitting – you can find practical tips in the article Retrofitting in VAG and BMW group cars.

Expanding the Audi rear lighting system

If you are planning a comprehensive repair or upgrade of the rear lighting zone in your Audi and need other elements from the same group, such as lamp lenses, light modules, or additional lighting segments, check the available parts in the Audi rear lights and brake lights category.