Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit A2059005036

Mercedes W205 W253 CD Radio Audio Sat Nav Navigation Head Unit is an original component from the Electronic control modules and controllers group, designed for installation in the rear part of the vehicle. This factory multimedia and navigation module ensures consistent operation of the audio system, satellite navigation support, and integration with other onboard electronics in Mercedes W205 and W253 class vehicles.

Specifications and technical data

• SKU: A2059005036
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2059005036
• Substitutable numbers: A2059005036, A 205 900 50 36
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Function and application in the multimedia system

The described CD, radio, and navigation module is responsible for the central management of infotainment functions in the vehicle. In practice, this means:

• radio signal support and audio playback from CD media,
• cooperation with the factory satellite navigation system,
• communication with the display and cabin controls,
• integration with other controllers in the vehicle network.

Thanks to this, the driver maintains full functionality of the factory multimedia system, and all functions are operated in a predictable manner consistent with the manufacturer's standards.

Vehicle placement and installation integration

The module is intended for installation in the rear part of the vehicle, which is a typical solution for many modern Mercedes models. Such placement:

• facilitates the routing of signal and power harnesses,
• ensures stable operating conditions for the electronics,
• allows for organized installation in factory mounting points.

As an element from the Electronic control modules and controllers group, the module works with the vehicle's communication bus, which enables data exchange with other controllers and maintains full functionality of comfort and safety systems.

Benefits of using an original used module

Using an original, used multimedia module in a Mercedes W205 or W253 allows you to maintain the consistency of the vehicle configuration and reduce the risk of compatibility issues. The most important advantages of such a solution include:

• factory integration with the electrical installation and onboard systems,
• preservation of original radio, CD, and navigation functionality,
• the possibility of economical repair without compromising on OEM quality.

Before purchasing, it is worth verifying the module's compatibility with the specific vehicle equipment version using the manufacturer's markings and vehicle data.

Selection, installation, and practical tips

When selecting such an element, it is crucial to match it to the car's configuration and check compatibility with the existing installation. In many cases, appropriate coding or adaptation in the vehicle, performed using specialized diagnostic equipment, is also required. For this reason:

• it is recommended to have the installation performed by a workshop experienced with Mercedes electronics,
• it is worth verifying the module parameters with service documentation before installation,
• ensure proper connection of all connectors and secure mounting in the installation location.

To better understand the principles of selecting and installing used controllers and sensors, the Global Parts guide will be helpful: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?, which discusses, among other things, selection by VIN/OEM, hardware and software compatibility, and frequently asked user questions.

Expanding the Mercedes electronic system upgrade

If you are planning a comprehensive repair or upgrade of the onboard electronics area in your Mercedes and need other elements from the same group, such as comfort controllers, multimedia modules, or driver assistance system control units, check the available parts in the Mercedes electronic control modules and controllers category.

Additional arguments for choosing used original components for premium cars are also provided in the article: Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, which describes current market realities, cost-effectiveness issues, and the impact on long-term vehicle maintenance.