Audi A6 C7 Rear Bulb Mount Holder Carrier Left N/S Outer 4F9945221B

Audi A6 C7 Rear Bulb Mount Holder Carrier Left N/S Outer is an original mounting component designed for the rear left tail light assembly in this model. It ensures stable bulb seating, proper contact alignment, and a secure connection to the electrical system, which translates into efficient operation of the rear lighting. This is a practical solution for users who want to restore the full functionality of the lamp after damage to the factory holder.

Specifications and technical data

• SKU: 4F9945221B
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F9945221B
• Substitutable numbers: 4F9945221B, 4F9 945 221 B
• Location on the vehicle: Rear, Left
• Category: Other Lighting & Bulbs

Purpose and function of the bulb holder

The presented holder is dedicated to the rear left side of the body, in the fender area where the tail light assembly is mounted. It is responsible for:

• precise positioning of bulbs in the lamp housing,
• maintaining stable electrical contact,
• reducing vibrations and looseness that can cause light flickering,
• facilitating bulb replacement without interfering with the lamp structure.

Thanks to its perfect fit for the specific body model, installation is straightforward, without the need for modifications or makeshift solutions.

Compatibility and fit for Audi A6 C7

The holder has been designed with the geometry of the Audi A6 C7 generation tail light in mind, taking into account the shape of the fender and the routing of the electrical harness. This means that it:

• fits the factory mounting points in the lamp and body,
• maintains compatibility with the original electrical connector,
• allows for the preservation of the factory seal and the optical system of the lamp.

Such a fit is particularly important during post-collision repairs or when replacing a damaged lamp insert, when you want to maintain lighting parameters consistent with the manufacturer's requirements.

Component characteristics and service application

As a dismantled part, the bulb holder is a cost-effective solution for maintenance and post-accident repairs. It is suitable for situations where:

• mechanical damage to the lamp insert has occurred (cracks, melting, broken sockets),
• there are issues with intermittent rear lighting circuits,
• it is necessary to replace only the holder without the need to purchase a complete lamp.

Choosing an original holder allows you to maintain consistency with other lighting system components and facilitates the diagnosis of potential faults in the future.

Technical support and part selection by OEM

Selecting the correct bulb holder for the Audi A6 C7 should always be based on the OEM number and the location on the vehicle, which minimizes the risk of ordering errors. In case of doubt, it is helpful to compare the shape and mounting points with the currently installed element. For users interested in a broader technical context of the brand's models, differences in construction, and solutions used in high-performance versions, the following article will be useful: Audi RS vs other models – what is hidden under the hood and chassis?.

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 inserts, bulb sockets, or small mounting parts, check the available parts in the Other Audi category.