Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine A2038703339

Mercedes W203 W209 W639 CD 6 Disc Changer With Magazine is a factory audio system component, belonging to the Electronic control modules and controllers group, designed specifically for Mercedes C-Class, CLK, and Vito/Viano models. It allows for convenient playback of six CDs without the need for frequent disc changes, ensuring consistency with the vehicle's original electrical installation.

Specifications and technical data

• SKU: A2038703339
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2038703339
• Substitutable numbers: A2038703389, A 203 870 33 89, A2038703339, A 203 870 33 39, A0028206289, A 002 820 62 89
• Location on the vehicle: Right, Left
• Category: ECUs & Computer Modules

Purpose and vehicle integration

The CD changer was developed as an original audio equipment component for selected Mercedes W203, W209, and W639 models, ensuring full compatibility with factory control units and the electrical system. As a part from the Electronic control modules and controllers group, it works with the vehicle's multimedia system, allowing control from the radio or dashboard buttons.

The placement in the vehicle is intended for both the right and left sides, which facilitates fitting to specific body versions and existing mounts. This solution allows for flexible installation depending on the interior configuration and user requirements.

Functionality of the 6-disc CD changer

The device supports simultaneous loading of six CDs in a dedicated magazine, which significantly increases user comfort during long trips. The CD magazine allows for quick replacement of the set of media outside the vehicle, without the need to insert individual discs into the radio each time.

The changer communicates with the vehicle's audio system via a dedicated harness, so track control, disc changing, and basic functions are performed directly from the factory panel. User interface consistency is maintained, and operation remains intuitive for drivers accustomed to Mercedes solutions.

Benefits of using an original module

Using an original CD changer to replace a damaged component or missing equipment allows for maintaining a uniform electrical and logical architecture of the audio system. No need for installation modifications minimizes the risk of errors, interference, and communication problems between control modules.

Choosing a used, functional module from the same product line is a cost-effective solution that is technically matched to the specific vehicle generation. This allows for restoring full functionality of the factory multimedia system without interfering with the interior design and without using non-original adapters.

Installation and technical fitment

The CD changer is designed for installation in locations provided by the vehicle manufacturer, which facilitates installation and reduces the time required for service work. Placement on the right or left side of the vehicle allows for fitting to factory brackets and cable routing.

Before installation, it is worth verifying compatibility with your audio control unit and equipment configuration, using data such as the product SKU, OEM part number, and available interchangeable numbers, which are listed in the technical specification. This allows for precise selection of the module for a specific equipment version and avoids communication problems in the vehicle bus.

Condition and origin

The offered CD changer is a used item, sourced from the dismantling of a Mercedes vehicle. Such components are popular choices for users who want to maintain the original character of the audio system while optimizing the costs of repair or equipment expansion.

By choosing this product, you receive an original electronic module designed specifically to work with the Mercedes installation, which translates into stable operation and predictable behavior within the entire comfort and multimedia control system.

System expansion and related modules

If you are planning a comprehensive repair or upgrade of the multimedia area in your Mercedes and need other elements from the same group, such as audio controllers, communication modules, or additional management units, check the available parts in the Mercedes electronic control modules and controllers category.

For users interested in the broader context of using original, used electronic modules in premium cars, an article describing how to preserve the brand's character using factory components may be helpful – more information can be found in the post Audi and emotions in their purest form – how used parts help maintain the brand's DNA.