Mercedes ML W164 GLK X204 CD GPS Player Radio Audio Head Unit A1649064000

Mercedes ML W164 GLK X204 CD GPS Player Radio Audio Head Unit is an original multimedia module from the Electronic control modules and controllers group, designed for factory installation in Mercedes vehicles. The device integrates audio and GPS navigation functions, ensuring seamless control of the infotainment system and communication with the vehicle's other electronic components. This solution is dedicated to drivers who want to maintain full compatibility with their car's electrical installation and data bus.

Specifications and technical data

• SKU: A1649064000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1649064000
• Substitutable numbers: A1649064000, A 164 906 40 00
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The presented Mercedes ML W164 GLK X204 CD GPS Player Radio Audio Head Unit has been designed as the central element of the multimedia system in Mercedes ML W164 and GLK X204 models. It is responsible for operating the radio, CD player, and navigation functions, as well as exchanging data with other controllers via factory communication interfaces. This ensures proper cooperation with the display, the center console control panel, and the buttons on the multifunction steering wheel.

As an item in the Electronic control modules and controllers category, the module acts as the master controller for the audio and navigation system, integrating signals from sensors, antennas, and additional modules (e.g., amplifier or Bluetooth interface, if present in the vehicle's specific configuration).

Benefits of using an original Mercedes module

Using a factory multimedia module in a Mercedes ML W164 or GLK X204 allows you to maintain the consistency of the vehicle's configuration and avoid problems typical of universal replacements. The original unit:

• is designed for the specific electrical and logical architecture of the vehicle,
• ensures proper cooperation with factory comfort and safety controllers,
• allows for maintaining the original cockpit appearance and ergonomics,
• facilitates diagnostics through standard Mercedes service procedures.

For the user, this means stable operation of the audio and navigation system, no need for wiring modifications, and the ability to use the functions intended by the vehicle manufacturer.

Operational characteristics and integration with electronics

The Mercedes ML W164 GLK X204 CD GPS Player Radio Audio Head Unit works with factory speakers, antennas, and additional modules, creating a cohesive infotainment system. The controller communicates with other vehicle elements via dedicated buses, which allows for:

• control from the multifunction steering wheel (if present in the configuration),
• cooperation with the central display and instrument cluster,
• handling of system messages and navigation information.

As a result, the driver receives a clear, organized interface, and all audio and GPS functions are integrated with the rest of the vehicle's systems. This is particularly important in premium class cars, where the consistency of electronic operation affects daily driving comfort.

Condition, origin, and practical application

The offered module is a used part, sourced from a dismantled Mercedes vehicle. Such OEM components are frequently chosen by users who want to restore the full functionality of the multimedia system without giving up the manufacturer's original solutions. In many cases, installation comes down to swapping the unit and performing standard adaptation steps in accordance with the service procedure.

Before purchasing, it is worth comparing your vehicle's equipment configuration with the offered module and verifying compatibility with the electrical installation. This helps avoid communication issues between controllers and ensures the proper operation of all audio and navigation functions.

Mercedes electronic control modules and controllers – expansion and service

If you are planning a comprehensive repair or upgrade of the multimedia system area in your Mercedes and need other elements from the same group, such as radio controllers, navigation modules, or infotainment head units, check out the available parts in the Mercedes electronic control modules and controllers category.

For more advanced work on vehicle electronics – especially when diagnostics, coding, or module adaptation are involved – experiences from other premium brands may be helpful. It is worth reading the guide on iDrive systems and electronic modules in BMW 3 and 5 series, which discusses practical aspects of repairs using parts from dismantling: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models.

If you are interested in a broader context of using used OEM components in premium cars, it is also worth reading the market trend analysis, which explains why original modules from dismantling for brands such as BMW, Mercedes, or Porsche are becoming an increasingly popular choice: Crisis in the new parts market? Why used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend in 2026.