Audi S4 B8 Avant Rear Tailgate Boot Inner Bulb Mount Holder Left N/S 8K9945257E

Audi S4 B8 Avant Rear Tailgate Boot Inner Bulb Mount Holder Left N/S is an original component from the Rear lights and brake lights group, designed for installation on the left side of the rear bodywork. It ensures stable seating of the bulb in the tailgate, which translates into reliable lighting performance and improved safety during driving and maneuvering.

Specifications and technical data

• SKU: 8K9945257E
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K9945257E
• Substitutable numbers: 8K9945257E, 8K9 945 257 E
• Location on the vehicle: Rear, Left
• Category: Rear Light Assemblies

Purpose and function of the component

The presented bulb holder is dedicated to the rear, left part of the tailgate in the Audi S4 B8 Avant model. It is responsible for the precise mounting of the bulb inside the lamp integrated with the tailgate, which allows for maintaining the correct geometry of the light beam and reliable electrical contact.

This element is essential in cases where the factory socket has been damaged, the holder has overheated, or the mounts have cracked mechanically. Replacing the holder allows you to restore the full efficiency of the rear lighting without the need to purchase a complete lamp.

Construction and fitment for Audi S4 B8 Avant

The holder has been designed as an original Audi part, thanks to which it maintains factory mounting points and a shape adapted to the construction of the tailgate in the Avant version. Proper guidance of the bulb and contacts minimizes the risk of looseness, flickering light, or intermittent power supply.

The placement in the rear, left part of the vehicle means that the component works with the lighting system responsible for, among others, the position light, brake light, or other functions provided in the given lamp configuration. Maintaining the original geometry of the holder is crucial for correct installation and the tightness of the entire lighting assembly.

Condition and benefits of using a used OEM component

The offered holder comes from dismantling, which means it is a used OEM component with parameters consistent with factory specifications. In practice, this allows for maintaining the consistency of the electrical installation and avoiding problems typical of lower-quality replacements.

Using an original bulb holder in the rear tailgate is a cost-effective and technically safe solution – especially in the case of local repairs, where we want to quickly restore full lighting functionality without interfering with other lamp elements.

Why choose this bulb holder

• Original Audi origin – maintained compatibility with the installation and rear lamp.
• Dedicated placement in the rear, left part of the tailgate in the Avant version.
• Stable bulb mounting and reliable electrical contact.
• Possibility of economical repair without replacing the entire rear lamp.
• Solution consistent with the factory design of the Rear lights and brake lights 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 combination lamps, sockets, or light modules, check the available parts in the Audi Rear lights and brake lights category.

For drivers interested in improving the car's performance and a broader approach to vehicle modifications, a tuning guide may be useful – you can find more practical tips in the article How to increase engine power: a practical guide to engine tuning with used parts.