Mercedes W169 W245 CD Player Radio Stereo Head Unit A1698705494

Mercedes W169 W245 CD Player Radio Stereo Head Unit is an original audio control unit designed for factory installations in Mercedes A-Class and B-Class models. It belongs to the Electronic control modules and controllers group, ensuring compatibility with the vehicle's electrical system and comfort systems. Using an audio module of this type allows for maintaining a consistent cockpit appearance, proper integration with the wiring, and stable operation of the sound system.

Specifications and technical data

• SKU: A1698705494
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698705494
• Substitutable numbers: A1698705494, A 169 870 54 94
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The described audio head unit serves as the central control module for the radio-CD system in Mercedes W169 and W245 class cars. As an element from the Electronic control modules and controllers group, it is responsible for:

• handling radio signals and CD playback,
• controlling volume and audio channel balance,
• interacting with front panel buttons and other onboard modules,
• communicating with the vehicle's electrical system via factory connectors.

By maintaining the original electronic architecture, the module ensures predictable performance and proper cooperation with other controllers in the vehicle.

Technical characteristics and system integration

As a factory Mercedes audio module, this control unit was designed to operate within a specific vehicle electrical architecture. This means it is perfectly matched to:

• original wiring harnesses and connectors in the dashboard,
• communication standards used in Mercedes electronic systems,
• factory mounting brackets and the center console frame.

This type of solution facilitates installation and reduces the risk of compatibility issues typical of aftermarket head units. The module, as a used part, is a good choice for servicing or replacing a damaged unit when maintaining the original vehicle configuration is a priority.

Practical application and benefits of installation

Using this head unit to replace a damaged or faulty radio allows for restoring full audio system functionality without interfering with the electrical installation. Key benefits include:

• factory fit for the interior – maintaining the original look of the center console,
• consistency with vehicle electronics – no need for additional adapters or converters,
• ability to use existing vehicle control elements,
• reasonable repair cost due to the use of a pre-owned module.

For workshops and end-users, this means faster repairs and a lower risk of issues with integrating the audio system with the rest of the car's electronics.

Condition, verification, and part number matching

The offered audio unit is a used item, which in practice allows for an economical repair while maintaining the original vehicle specification. Before installation, it is recommended to verify compatibility with the car based on the OEM part number and available interchangeable numbers, as well as to compare vehicle equipment versions. Proper selection of a module from the Electronic control modules and controllers group minimizes the risk of communication errors with other controllers and configuration problems.

If you want to learn more about selecting and installing used controllers and sensors, you can find practical tips in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Expanding the electronics system in your Mercedes

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

Choosing used electronic components, such as the audio unit described, can also be beneficial from an environmental and budgetary perspective. You can find more about the advantages of using pre-owned components in the automotive industry in the article Eco-driving: discover the benefits of used car parts.