Audi A4 B9 Front Door Sub Speaker Left Right N/O/S Loudspeaker 8W5035297

Audi A4 B9 Front Door Sub Speaker Left Right N/O/S Loudspeaker is an original premium audio system component designed for installation in the front interior section. Thanks to its precise fit for the factory Audi installation, it ensures acoustic consistency, aesthetic integration with the door upholstery, and stable performance parameters. This is a solution for users who expect high sound quality and the maintenance of full compatibility with the vehicle's equipment.

Specifications and technical data

• SKU: 8W5035297
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W5035297
• Substitutable numbers: 8W5035297, 8W5 035 297
• Location on the vehicle: Front, Left, Right
• Category: Door Panels

Purpose and vehicle placement

The presented speaker is a component of the factory Bang & Olufsen sound system, mounted in the front part of the cabin, on either the left or right side. The design was developed specifically for the geometry of the Audi A4 B9 doors, which allows for secure seating in the factory mounting points and proper interaction with the door upholstery. Such a fit reduces unwanted resonance and supports stable acoustic characteristics across the entire operating range.

Technical and acoustic characteristics

The Bang & Olufsen speaker used in the Audi A4 B9 is part of a system designed to provide even sound coverage throughout the front cabin zone. The diaphragm and magnetic circuit used are selected to ensure:

• precise reproduction of mid and high frequencies, essential for vocal clarity and musical detail,
• stable performance at higher volume levels without excessive distortion,
• tonal consistency with the other speakers in the vehicle's Bang & Olufsen system.

Thanks to the factory design for a specific car model, the speaker works with the stock amplifier and onboard electronics, which makes it easier to maintain an optimally tuned audio system without the need for additional modifications.

Installation and interior compatibility

The speaker is intended for installation within the Door upholstery of the Audi A4 B9, in the factory-provided mounting locations. The appropriately selected basket shape and mounting points allow for:

• trouble-free seating in the driver or passenger door,
• preservation of the original styling line of the door panels,
• proper sealing and reduction of structural vibrations.

Such a solution facilitates quick installation by a workshop or an experienced user, while minimizing the risk of rattles and unwanted noises resulting from component mismatch.

Component condition and service application

The offered speaker is a used component, which makes it an attractive cost-effective alternative to new parts while maintaining the original manufacturer's specifications. It works well both as a replacement for a damaged speaker in a factory Bang & Olufsen system and when restoring full sound system functionality after door upholstery or electrical repairs. Choosing an original component allows you to maintain the sound consistency of the entire system and avoid issues with electrical and mechanical fitment.

Benefits of using an original Bang & Olufsen speaker

Using a factory speaker in the Audi A4 B9 brings a number of practical benefits:

• Full integration with the audio system – maintaining the factory parameters and tuning of the Bang & Olufsen system.
• Proper fit to the door upholstery – no need for panel or mount modifications.
• Consistent sound characteristics throughout the cabin – important when replacing a single speaker in an existing system.
• A reasonable compromise between quality and cost thanks to the use of a used part.

This solution is particularly beneficial for users who want to maintain a high standard of interior equipment and acoustic comfort while controlling the budget of repairs or upgrades.

If you are planning a comprehensive repair or upgrade of the door area in your Audi and need other elements from the same group, such as panels, inserts, or door cards, check the available parts in the Audi door upholstery category.

If you are interested in optimizing service costs using branded used parts and want to better understand how the selection of components affects durability and operating economy, it is worth reading the article Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs, which shows a practical approach to repairs using proven components.