Mercedes R171 W204 W212 W221 Radio Remote Control Key Fob Button A2049050804

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes R171 W204 W212 W221 Radio Remote Control Key Fob Button is an original component from the Switches, control elements and ignition locks group, designed to operate radio functions in selected Mercedes models. The product is offered in for parts or not working condition, making it an excellent choice as a donor for components or a base for specialized repairs.

Specifications and technical data

• SKU: A2049050804-2
• Mark: Mercedes (Genuine OE)
• Condition: For parts or not working
• OEM Part Number: A2049050804
• Substitutable numbers: A2049050804, A 204 905 08 04
• Category: Switches & Controls

Purpose and function of the component

The presented radio remote control key fob is designed as a factory control module for Mercedes vehicles from the R171, W204, W212, and W221 series. Its task is to transmit signals to the multimedia system, which, in a functional unit, allows for convenient management of audio functions directly from the remote or key. As an original part, it maintains full structural compatibility with the electrical installation and interior architecture of these models.

Use in service and dismantling

Due to the condition specified as for parts or not working, this radio remote control key fob is particularly useful for:

• obtaining functional electronic components for repairing other modules,
• training and diagnostic purposes in workshops specializing in the Mercedes brand,
• reconstructing wiring, connectors, and housings in damaged units,
• structural comparisons during advanced control system repairs.

For automotive electronics services, such an element is a valuable reference source, allowing for precise component matching and verification of factory solutions.

Benefits of choosing an original Mercedes component

Choosing an original radio remote control key fob from dismantling brings a number of practical advantages. First and foremost, it ensures full structural compatibility with the factory system, which facilitates the identification of pins, connectors, and the method of communication with comfort modules and the radio. An original part also allows for maintaining the visual consistency of the interior – the shape, color, and finish are matched to the manufacturer's standards.

For workshops specializing in the Mercedes brand, such an element is a valuable source of spare parts, enabling economical repair of more complex modules without the need to resort to expensive new components.

Professional use in Mercedes repairs

The radio remote control key fob from this offer can be used as:

• a donor for the housing or mechanical elements during the regeneration of damaged remotes,
• a source of compatible buttons and microswitches,
• a reference module for testing connections and electrical wiring harnesses,
• material for circuit reconstruction in specialized automotive electronics laboratories.

Thanks to this, it provides a practical solution for services that focus on technically correct and economical repairs in premium class vehicles.

Expanding work within the control and ignition lock area

If you are planning a comprehensive repair or modernization of the control and ignition lock zone in your Mercedes and need other elements from the same group, such as button modules, function switches, or ignition lock components, check the available parts in the Mercedes switches, control elements and ignition locks category.

More about used parts for Mercedes

If you want to better understand how to safely and consciously choose used components for cars of this brand, it is worth reading the guide describing the advantages of original parts from dismantling, such as comfort modules, multimedia systems, or suspension components. Practical tips and examples can be found in the article Used parts for Mercedes – original parts from dismantling.