Mercedes W164 W204 C209 W212 Microphone Hands-Free Interior Mic Unit A2208200335

The Mercedes hands-free interior microphone is an original factory-installed component in select Mercedes W164, W204, C209, and W212 models. The microphone unit ensures proper integration with the factory multimedia and telephone systems, allowing you to conveniently conduct calls without taking your hands off the steering wheel.

Specifications and technical data

• SKU: A2208200335
• Mark: Mercedes
• Condition: Used
• OEM Part Number: A2208200335
• Substitutable numbers: A2208200335, A 220 820 03 35
• Category: Rear View Mirrors

Application and function in the vehicle

The Mercedes hands-free interior microphone is a component of the audio system responsible for capturing the voices of the driver and passengers in the cabin. It works in conjunction with the Bluetooth module or the factory telephone system, transmitting the signal to the control unit.

This solution allows you to:

• making phone calls in speakerphone mode,
• support for voice functions (if available in the vehicle),
• maintaining speech intelligibility at typical noise levels inside a car.

Construction and integration with the interior

The microphone unit is designed as a discreet component, mounted inside the cabin in a location designated by the manufacturer (usually near the rearview mirror or headliner). This allows:

• stylistic consistency is maintained with other interior elements,
• the microphone does not restrict visibility or interfere with the ergonomics of the cockpit,
• Installation takes place at the factory mounting points, without any upholstery modifications.

The original design ensures appropriately selected directional characteristics and sensitivity, optimized for the interior acoustics of specific Mercedes models.

Compatibility and technical aspects

This component is designed to work with factory multimedia systems found in select Mercedes-Benz W164, W204, C209, and W212 models. As part of the rearview mirror group, it is structurally linked to the headliner and mirror area, facilitating integration with the existing electrical system.

In practice, this means:

• maintaining the full functionality of the factory hands-free kit,
• no need to use additional acoustic adapters,
• easier diagnostics in the case of audio-telephone installation service.

Product condition and the benefits of choosing a used part

The microphone offered is in used condition, meaning it was dismantled from a vehicle and has been previously used. These types of electronic components, when properly operated, retain their performance for a long time, so choosing a functional used part is often a sensible alternative to purchasing a new component.

The main advantages of using an original, used microphone unit include:

• factory compatibility with the electrical installation and multimedia system,
• maintaining the quality of voice transmission in line with the manufacturer's assumptions,
• economic profitability while maintaining operating parameters similar to those of a new element.

Support with selection and related content

If you're looking for other Mercedes rearview mirrors or related components, check out our dedicated Mercedes rearview mirrors category. There you'll find a wide selection of components for various Mercedes models.

When planning a drivetrain upgrade or analyzing the specifics of four-wheel drive in premium vehicles, it's worth reading this article comparing AWD solutions, including the systems used in Mercedes: xDrive, 4Matic, quattro, and 4Motion – a comparison of AWD drives from BMW, Mercedes, Audi, and VW . This is a practical supplement to knowledge for a comprehensive approach to servicing and operating high-end cars.