Audi A3 S3 RS3 8P S4 B7 Handsfree Phone Audio Microphone Unit 8E0862373

Audi A3 S3 RS3 8P S4 B7 Handsfree Phone Audio Microphone Unit is an original component from the Electronic control modules and controllers group, designed for the integration of the factory telephone and multimedia system in selected Audi models. It allows for comfortable hands-free calling, ensuring clear voice transmission and stable cooperation with the vehicle's electronics.

Specifications and technical data

• SKU: 8E0862373A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0862373A
• Substitutable numbers: 8E0862373A, 8E0 862 373 A, 8E0862373, 8E0 862 373
• Category: ECUs & Computer Modules

Purpose and function in the Audi installation

The hands-free microphone is a component installed in the headliner or near the interior rearview mirror, where it captures the voice signal of the driver and passenger. As part of the onboard communication system, it works with control modules responsible for operating the phone, navigation, and voice commands, which translates into user convenience and driving safety. In Audi A3, S3, RS3 8P generation and S4 B7 vehicles, the microphone is factory-tuned to the car's electronics, so after proper installation, it maintains stable operating parameters and does not require additional installation modifications.

Benefits of using an original microphone

Using an original microphone instead of a damaged or faulty component allows you to restore the proper operation of the hands-free kit without quality compromises. In practice, this means:

• consistent operation with factory electronic control modules,
• appropriate sensitivity and sound pickup characteristics matched to the Audi interior,
• no compatibility issues typical of low-quality replacements,
• aesthetic integration with the headliner and cabin trim elements. For the user, this means convenient phone usage, better call clarity, and maintaining the factory standard of the vehicle's equipment.

Characteristics and integration with electronic modules

As an element of the Electronic control modules and controllers category, the microphone works with control units responsible for multimedia and communication support. The signal from the microphone is processed by audio modules and telephone system controllers, which are responsible for noise reduction, signal amplification, and its distribution to other installation components. Proper matching of this element to a specific car configuration is crucial for maintaining system stability – from the quality of phone calls and voice command operation to cooperation with the factory radio or navigation.

Product condition and service application

The offered microphone comes from disassembly and is a used component, which makes it an attractive service solution for Audi owners looking for original components at a reasonable price. This type of part works great for:

• repairing a faulty hands-free kit,
• replacing a missing element after previous interior modifications,
• restoring the full functionality of the factory multimedia system. Choosing an original, used element allows you to maintain compatibility with the vehicle's installation and avoid problems with matching harnesses or connectors.

Support in selecting electronics and system expansion

If you are planning a comprehensive repair or modernization of the onboard electronics area in your Audi and need other elements from the same group, such as comfort modules, multimedia controllers, or connectivity management units, check the available parts in the Audi electronic control modules and controllers category. When planning work with electronics, it is worth learning good practices regarding control modules – an article describing the servicing of iDrive systems and controllers in other premium brands may be helpful, available here: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models. If you are considering further expansion of the multimedia system – e.g., with better sound or factory navigation – practical tips on choosing screens, amplifiers, and module coding can be found in the guide: Multimedia in the car: how to find original navigation and better sound without overpaying?.