Audi A4 B8 Loudspeaker Front Door Left Right N/O/S Bang&Olufsen 8T0035415B

Audi A4 B8 Loudspeaker Front Door Left Right N/O/S Bang&Olufsen is an original audio system component installed in the front doors of Audi models, designed for precise sound reproduction. Thanks to the collaboration with the renowned Bang&Olufsen brand, the loudspeaker ensures consistent sound quality with the factory audio system and proper fitment for the vehicle's electrical installation. This is the solution for users who want to restore full functionality to their audio system without compromising on quality.

Specifications and technical data

• SKU: 8T0035415B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8T0035415B
• Substitutable numbers: 8T0035415B, 8T0 035 415 B
• Location on the vehicle: Front, Left, Right
• Category: ECUs & Computer Modules

Purpose and mounting compatibility

The presented loudspeaker is designed for installation in the front door on either the left or right side, which facilitates the selection of the appropriate component for audio system repairs. The design, based on the original Audi and Bang&Olufsen project, allows for maintaining the original acoustic characteristics of the cabin and proper interaction with other audio components.

Thanks to the use of an original solution from the Electronic control modules and controllers group, the loudspeaker works with the factory amplifier and control unit without the need for wiring modifications or interference with the vehicle's electronics.

Acoustic characteristics and role in the Bang&Olufsen system

The Bang&Olufsen system in Audi has been designed as a coherent whole, where each loudspeaker is responsible for a specific frequency range and sound directionality. The front door loudspeaker is responsible for:

• stable reproduction of mid and selected higher frequencies in the driver and passenger zone,
• maintaining tonal balance between the left and right sides of the vehicle,
• proper cooperation with tweeters and woofers in the doors and dashboard.

Using an original component allows you to maintain the factory-designed soundstage, which is particularly important in premium-class systems where every component is tuned for a specific body model.

Benefits of using an original Bang&Olufsen loudspeaker

Using this loudspeaker to replace a damaged or worn-out component brings a number of practical benefits:

• maintaining full compatibility with the factory Audi audio system and its control electronics,
• no need for installation adaptation – assembly takes place in the location provided by the manufacturer,
• sound consistency with other Bang&Olufsen loudspeakers in the vehicle,
• reducing the risk of interference, crackling, and volume differences between the sides of the vehicle.

This solution is especially recommended for repairs after door flooding, mechanical damage to the diaphragm, or problems with audio system operation resulting from the failure of a single loudspeaker.

Condition, verification, and selection based on technical data

The item comes from the group of original Audi components and is offered as a used part, which allows for reducing repair costs while maintaining proper operating parameters. Before installation, it is recommended to verify compatibility with the vehicle based on technical data, such as manufacturer markings, information about the placement on the vehicle, and the audio system configuration in the given unit.

If you want to better understand how to safely select and install used electronics and components related to vehicle control systems, it is worth reading the Global Parts guide: Used car electronics on board – why is it worth choosing second-hand ECU modules and sensors?. There, you will find practical tips regarding selection based on manufacturer markings, compatibility, and installation.

Expanding your Audi audio system upgrade

If you are planning a comprehensive repair or upgrade of the electronic zone responsible for the audio in your Audi and need other elements from the same group, such as audio amplifiers, control units, or additional integration modules, check the available parts in the Audi electronic control modules and controllers category.

For drivers who want to optimize service costs while maintaining OEM quality, the guide on the profitability of using second-hand parts may also be helpful: Rising repair costs and the boom in used parts – how to save on car service?. This is a practical supplement to your knowledge when planning larger works related to electronics and interior equipment.