Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit 3457050

Visual condition of the part

The product shows signs of use visible in the photos.

Mini Cooper R55 R56 R57 LCI Radio Boost CD USB Bluetooth Head Unit is an original multimedia module from the Electronic control modules and controllers group, designed for factory installation in post-facelift Mini R-series models. It provides convenient control of the radio, CD player, USB port, and Bluetooth connectivity, integrating audio functions into one cohesive control panel.

Specifications and technical data

• SKU: 3457050-2
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 3457050
• Substitutable numbers: 65123456870, 3456870, 65123456628, 65123456324, 3456628, 3456324, 65123457050, 3457050, 65123457568, 3457568, 65123457434, 3457434, 65123456995, 3456995, 65123456871, 3456871, 65123456760, 3456760, 65123456516, 3456516, 65123456601, 3456601, 65123456427, 3456427
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The presented head unit is a central component of the factory audio system in post-facelift (LCI) Mini Cooper R55, R56, and R57 models. As an electronic control module, it is responsible for:

• managing radio signals and CD playback,
• supporting media connected via USB,
• integrating Bluetooth connectivity with the audio system,
• communicating with other vehicle controllers via the data bus.

This provides the driver with a cohesive, ergonomic interface for multimedia control, styled and functionally matched to the Mini interior.

Key technical advantages

As an OEM-class component from the Mini brand, this module maintains full compatibility with the vehicle's electrical installation and electronic architecture. This means:

• factory-fit connectors – no need for wiring modifications or the use of adapters not intended by the manufacturer,
• proper cooperation with factory buttons and displays,
• preservation of the original audio system logic and onboard messages.

Extensive cross-reference numbers allow for selecting the module for a specific equipment configuration, which facilitates matching during repairs and multimedia system upgrades.

Condition, verification, and service application

The item is offered as a used OEM module, which in practice means a favorable combination of price and adherence to the manufacturer's original specifications. Such units are commonly used in:

• repairs following a factory radio failure or electronic damage,
• restoring the car to its factory configuration after unsuccessful audio modifications,
• service centers specializing in Mini electronics, where compatibility with the existing installation is crucial.

Before installation, a standard diagnostic procedure is recommended, as well as appropriate configuration or coding in the vehicle if required by specific units, in accordance with service practices for Electronic control modules and controllers.

Benefits of choosing an original Mini module

By choosing an original Mini audio system control module, you gain:

• stylistic consistency with the dashboard and other interior elements,
• preservation of factory radio, CD, USB, and Bluetooth functions without compromise,
• easier future diagnostics – the module is recognized by factory service software.

This solution is particularly valued by users who want to keep their car in a configuration close to its original factory state while optimizing repair costs through the use of proven, pre-owned electronics.

More about used electronics and related modules

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

To better assess when choosing a used module is technically and economically justified, it is worth reading our guide: The second life of electronics – when is it worth choosing used controllers and modules for your car. Additionally, if you want to clear up any doubts regarding the quality of second-hand parts, the following article will be helpful: Used car parts: myths and facts you need to know.