Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME 7588502 CAS3 Key Automatic

Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME CAS3 Key Automatic is an advanced electronic set designed for vehicles with an automatic transmission and petrol engine. The set comes from a dismantled vehicle, which allows for an economical yet professional repair of the powertrain control system in your Mini.

Specifications and technical data

• SKU: 7588502-7
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7588502
• Substitutable numbers: 7589972, 12147589972, 7572268, 12147572268, 7620005, 12147620005, 7620001, 12147620001, 7572264, 12147572264, 7572270, 12147572270, 7620020, 12147620020, 7572274, 12147572274, 7572272, 12147572272, 7620076, 7588502, 0261S04456, 0 261 S04 456, 9147191, 61359147191
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the ECU DME CAS3 kit

The presented set includes the DME engine control unit, the CAS3 module, and a matched key, creating a coherent electronic system for the Mini Cooper R55/R56 with the N12 1.6 120HP unit. This set is particularly useful when replacing a damaged engine controller or dealing with issues related to the immobilizer, key synchronization, and communication between the powertrain electronics and the ignition system.

Combining the DME controller with the CAS3 module and the key avoids time-consuming programming from scratch, as the components are already paired. For workshops and advanced users, this means faster diagnostics, more efficient replacement, and a lower risk of software conflicts in the vehicle.

Compatibility with the N12 engine and automatic transmission

The set has been designed to work with the 120HP N12 petrol engine used in the Mini Cooper R55 and R56 in an automatic transmission configuration. The appropriate engine operating maps and control logic are tailored to the characteristics of this unit and the transmission, which allows for maintaining factory engine performance parameters, smooth gear shifting, and correct interaction with safety and comfort systems.

Thanks to this, the Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME CAS3 Key Automatic is particularly valuable for repairs where it is necessary to replace the entire powertrain control system rather than just a single module. This helps limit the number of potential points of incompatibility between the electronics and the rest of the vehicle's installation.

Benefits of using a used control unit set

Choosing a used set from the Electronic control modules and controllers category is a sensible solution for Mini owners and workshops specializing in the brand. You receive an original system that has already been operated in a vehicle, which in practice means proven compatibility with the factory installation and a real reduction in repair costs compared to purchasing new components.

This approach is also environmentally friendly – reusing functional electronic modules reduces waste and aligns with the idea of responsible automotive recycling. If you want to learn more about the advantages of using parts from dismantling, it is worth reading the article Eco-driving: discover the benefits of used car parts, which discusses the practical and economic aspects of such a choice.

Professional application and service aspects

The Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME CAS3 Key Automatic is particularly recommended for services dealing with Mini electronics and for specialists in controller diagnostics. The set enables:

• restoring proper vehicle starting after a failure of the engine controller or the CAS3 module,
• reducing the need for deep programming of the immobilizer and keys,
• consistent replacement of powertrain control elements in a single service process.

For end-users, this means shorter vehicle downtime and greater predictability of the repair outcome. In the case of more advanced work on powertrain control electronics, the expert material 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? may also be helpful, as it discusses good practices for working with used control modules – many of the principles described there can be analogously applied to Mini service.

Expanding the control system in the Mini

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other elements from the same group, such as additional controllers, comfort modules, or powertrain management systems, check the available parts in the Mini electronic control modules and controllers category.

A well-chosen set of electronic modules allows for maintaining the consistency of the entire system, which translates into stable engine operation, correct communication over data buses, and easier diagnostics in the future. Thanks to this, your Mini Cooper R55/R56 with the N12 engine can maintain full functionality and predictable behavior in daily use.