Audi A4 B7 Rear Lamp Right O/S Tail Light Bulb Holder Socket 8E5945258B

Audi A4 B7 Rear Lamp Right O/S Tail Light Bulb Holder Socket is a precision lighting system component designed for the rear right lamp of the Audi A4 B7 generation. This component from the Rear lights and brake lights category is responsible for the stable seating of bulbs and proper power transmission, which translates into safe and clear signaling on the road. Thanks to its factory design dedicated to Audi, the holder ensures a proper fit to the lamp and the vehicle's electrical system.

Specifications and technical data

• SKU: 8E5945258B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E5945258B
• Substitutable numbers: 8E5945258B, 8E5 945 258 B
• Location on the vehicle: Rear, Right
• Category: Rear Light Assemblies

Purpose and function in the lighting system

The rear right tail light bulb holder socket in the Audi A4 B7 is responsible for the correct placement and connection of the position, brake, turn signal, and reverse light bulbs, in accordance with the lamp design used in this model. The element is mounted in the rear right part of the body, in the area of the tail light assembly, which allows for:

• stable retention of bulbs in the correct operating position,
• secure electrical connection with the vehicle's wiring harness,
• easier diagnostics and bulb replacement in the event of a failure.

Thanks to a design consistent with the solutions used by the manufacturer, the holder works with the factory electrical system, maintaining the correct operating parameters of the rear and brake lights.

Benefits of using an original lamp holder

Using a dedicated bulb holder socket in the Audi A4 B7 helps to reduce typical problems associated with unreliable connections, such as flickering lights, intermittent signal loss, or errors displayed by the lighting control system. The main advantages of this solution include:

• Factory fit to the lamp and bodywork – no need for modifications or adaptations, proper alignment with the rear right lamp.
• Stable electrical connections – properly designed bulb sockets minimize the risk of overheating and loose contacts.
• Maintaining correct light geometry, which affects the readability of signals for other road users.

For users who care about the technical correctness of repairs and compliance with factory solutions, such a holder is a practical choice when replacing a damaged or corroded socket.

Vehicle placement and installation aspects

The element is intended for installation in the rear right lamp of the Audi A4 B7, in the body zone responsible for the vehicle's light signaling. In practice, this means:

• installation in the trunk or wheel arch area, depending on the body version,
• cooperation with the factory wiring harness,
• the possibility of removing the lamp to replace the holder without interfering with the body structure.

With proper installation, the holder ensures secure seating of the bulbs and proper sealing within the lamp, which reduces the risk of moisture entering the contact area.

Product characteristics and practical application

The rear right tail light bulb holder socket for the Audi A4 B7 is an element worth using in situations such as mechanical damage to the lamp, melting of bulb sockets, or corrosion of contacts. Replacing this component allows you to restore:

• the efficiency of rear and brake lights,
• proper operation of the turn signal and reverse light (according to the lamp configuration),
• compliance with technical inspection requirements regarding lighting.

For Audi A4 B7 owners who want to keep their vehicle in good technical condition and avoid problems with visibility and safety, using the appropriate lamp holder is a sensible service solution.

Selection support and additional information

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 tail light assemblies, light modules, or additional holders, check the available parts in the Audi rear lights and brake lights category.

To better understand how the use of original used components affects the vehicle's resale value and why it is worth avoiding random replacements, read the article Original used parts vs. car resale price – how not to lose money?.