Mini Cooper R56 Engine N12 1.6 120HP Petrol ECU Kit DME 7640004 CAS3 Key Manual

Mini Cooper R56 Engine N12 1.6 120HP Petrol ECU Kit DME CAS3 Key Manual is a complete electronic set designed for the Mini powertrain with an N12 petrol engine and manual transmission. The kit includes the DME engine control unit, the CAS3 module, and a matched key, ensuring seamless, factory-standard cooperation between all components. This solution is particularly beneficial when replacing a faulty ECU or performing a comprehensive 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

Application of the ECU DME CAS3 kit with key

The presented kit is intended for Mini Cooper R56 vehicles with an N12 1.6 120HP engine, running on petrol and equipped with a manual transmission. The combination of the DME engine control unit, the CAS3 module, and the key ensures immobilizer system consistency, which facilitates restoring full vehicle functionality after an electronics failure or engine replacement.

A set configured in this way helps avoid issues with matching individual modules, minimizes the risk of communication errors within the vehicle network, and reduces the time required for diagnostics and starting the car after repairs.

Benefits of using an original Mini control module

As an item from the Electronic control modules and ECUs category, this ECU kit is designed to operate in the demanding environment of the engine bay, maintaining appropriate thermal and electrical parameters. The original DME architecture ensures correct control of fuel injection, ignition, and cooperation with other vehicle systems, such as ABS or electronic stability control.

A used, fully functional set of this type is a rational choice for repairs where compliance with the factory configuration and the ability to quickly get the car back on the road are essential. Integration with the CAS3 module and key reduces the need for additional programming and allows for a more predictable installation process.

Selection, compatibility, and interchangeable numbers

This engine control unit with the CAS3 module and key has a dedicated OEM part number and a set of interchangeable numbers, which facilitates precise identification in Mini and electronics manufacturer catalogs. This allows for verifying compatibility with a specific equipment version, model year, and N12 engine variant.

Before purchasing, it is recommended to compare the markings with the existing installation in the vehicle or consult a diagnostic specialist to confirm full compatibility. Using the correct ECU DME + CAS3 + key kit reduces the risk of engine starting problems, immobilizer errors, or improper engine operation.

Condition, verification, and practical installation tips

This item comes from the used electronic control modules group, which means that a standard diagnostic procedure and inspection of the vehicle's electrical installation are recommended before installation. Proper connection of grounds, power supply, and CAN communication lines is crucial for the stable operation of the DME controller and the CAS3 module.

In practice, it is advisable to entrust the installation of such a kit to a workshop with experience in Mini electronics, access to appropriate diagnostic software, and adaptation procedures. This allows for optimizing repair time and reducing the risk of secondary faults resulting from incorrect configuration.

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 DME controllers, CAS modules, or other engine management units, check the available parts in the Mini electronic control modules and ECUs category.

To better assess when choosing a used ECU kit with a CAS module and key is cost-effective and what to look for when buying electronics, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?