Mini Cooper R56 Engine N12 1.6 120HP Engine Control ECU Kit DME 7640004 Manual

The Mini Cooper R56 Engine N12 1.6 120HP Petrol ECU Kit DME CAS3 Key Manual is a solution designed for workshops and users who want to efficiently restore full functionality to the engine control system in a petrol version with a manual transmission. This component from the Electronic control modules and ECUs group allows for a technically correct replacement of a faulty controller without the need for time-consuming programming from scratch. Thanks to its compatibility with the specific drivetrain configuration, the kit serves as a practical foundation for professional engine electronics repair.

Specifications and technical data

• SKU: 7640004-3
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7640004
• Substitutable numbers: 7640004, 12147589972, 7589972, 12147572264, 7572264, 12147572276, 7572276, 12147572256, 7572256, 12147572260, 7572260, 12147620005, 7620005, 12147572270, 12147620001, 12147572268, 12147620076, 12147620020, 12147572274, 12147572272, 12147572266, 0261S04160, 61359147195, 9147195
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and technical configuration

The offered Mini Cooper R56 Engine N12 1.6 120HP Petrol ECU Kit DME CAS3 Key Manual is dedicated to the Mini Cooper R56 with the 120 HP N12 petrol engine, paired with a manual transmission. The kit includes the DME engine controller, the CAS3 module, and a matched key, which allows for maintaining the consistency of the immobilizer, coding, and start authorization in the vehicle. Combining the engine controller with the CAS3 module and key in one set significantly facilitates the installation process in the car, minimizing the risk of software conflicts and starting issues after replacing the electronics.

Function in the engine control system

In this Mini model, the DME controller is responsible for precise management of the petrol engine's operation, including fuel injection, ignition, and cooperation with sensors and actuators. Integration with the CAS3 module ensures correct immobilizer operation and key authorization, which is crucial for vehicle security. Due to its adaptation to a specific drivetrain version, the kit is particularly useful for tasks such as:

• replacing a damaged engine controller after an electrical failure or water damage,
• resolving communication issues between the controller and the CAS3 module,
• restoring correct engine starting after previous unsuccessful programming attempts.

Benefits of using the complete Mini Cooper R56 Engine N12 1.6 120HP Petrol ECU Kit DME CAS3 Key Manual

Using a complete kit with a matched key allows for reducing diagnostic and programming time compared to installing a single controller. The consistency of the components within one set facilitates the work of automotive electronics specialists and reduces the risk of needing repeated coding or adaptation. The product comes from dismantling, which in practice means a favorable cost-to-functionality ratio while maintaining the original architecture of the Mini control system. For many workshops, this is an effective solution for repairing vehicles that were factory-equipped with a DME controller working with a CAS3 module.

Condition, verification, and practical application

The kit is offered as a used original component, which allows for maintaining compatibility with the factory electrical installation and the vehicle's communication bus. Before installation, it is recommended to perform a standard diagnostic procedure and match the configuration to the specific vehicle according to workshop practice. This type of solution is particularly valued in services specializing in the Mini brand and in independent workshops dealing with automotive electronics, where the ability to quickly restore the engine control system's efficiency while maintaining the original system logic is essential.

Integration with other modules and service knowledge

Modern control systems in premium segment vehicles, such as Mini or BMW, are based on an extensive network of electronic modules. To deepen your knowledge about diagnostics and repairs of similar systems, it is worth reading the material describing the operation of engine controllers, comfort modules, and multimedia systems in technologically related vehicles – this is discussed in detail in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using parts from dismantling?.

Related Mini Electronic control modules and ECUs

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other components from the same group, such as engine controllers, comfort modules, or body control units, check the available parts in the category Mini Electronic control modules and ECUs.