Mercedes W204 R172 DAB Receiver Digital Audio Control Unit Module A1669003602

Mercedes W204 R172 DAB Radio Module Antenna Amplifier is a specialized component from the Electronic Control Modules and Controllers group, designed for digital DAB radio operation and antenna signal amplification in Mercedes vehicles. It enables stable audio system performance, improving reception quality and ensuring proper communication with the car's electrical system.

Specifications and technical data

• SKU: A1669003602
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1669003602
• Substitutable numbers: A1669003602, A 166 900 36 02
• Location on the vehicle: Right
• Category: ECUs & Computer Modules

Module Purpose and Function

The offered module is responsible for digital DAB radio operation and antenna signal amplification in selected Mercedes W204 and R172 models. As an integrated part of the vehicle's multimedia system, it works with the factory audio system, ensuring correct digital station reception and a stable radio signal.

Its placement on the right side of the vehicle allows for proper routing of electrical harnesses and antenna cables according to the manufacturer's original design, which facilitates installation and minimizes the risk of interference.

Construction and Integration with Vehicle System

The module belongs to the Electronic Control Modules and Controllers group, meaning it communicates with the vehicle's data bus and other controllers responsible for the multimedia system. It is designed to operate within the specific electrical environment of a Mercedes, ensuring compatibility with factory harnesses, connectors, and vehicle software.

Key user features of this component include:

• dedicated application in the DAB radio system,
• compatibility with the factory antenna and audio system,
• installation on the right side of the vehicle according to the manufacturer's design,
• preservation of the car's original electrical architecture.

Benefits of Using an Original Used Module

This component is from a dismantled vehicle and is an original Mercedes part, which translates to proper fitment with the vehicle's system and predictable performance during operation. Unlike aftermarket replacements, an original module maintains compliance with the multimedia system's factory operating parameters.

The main advantages of using such a solution include:

• preservation of the factory functionality of the DAB radio system,
• reduction of electrical and software compatibility issues,
• economical repair or restoration of the audio system's functionality.

Practical Application in Service

The DAB radio module with antenna amplifier function is suitable for both post-failure repairs and replacement of damaged components in Mercedes W204 and R172 vehicles. Due to its factory-intended installation on the right side of the body, servicing is predictable, and the risk of installation errors is reduced.

If you are planning a comprehensive repair or upgrade of the multimedia system area in your Mercedes and need other components from the same group, such as audio system controllers, communication modules, or signal amplifiers, check the available parts in the Mercedes Electronic Control Modules and Controllers category.

Technical Support and Electronics Selection

When working with automotive electronics, it is advisable to use proven solutions and expert knowledge. For comparison of solutions used in other brands and a better understanding of the role of control modules in modern vehicles, an article describing the operation of multimedia systems and controllers in BMW may be helpful – you can find it here: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models.

If you are interested in how the use of used OEM components affects repair time and workshop workflow, it is also worth reading the material: Availability of Car Parts Off the Shelf vs. Repair Time – How Used OEM Shortens Workshop Stays?.