Mini Cooper R55 R56 N12 1.6 120HP Engine Unit ECU Kit DME 7640005 CAS3 2 Keys

Mini Cooper R55 R56 N12 1.6 120HP Engine Unit ECU Kit DME CAS3 2 Keys is a practical solution for workshops and users looking for a verified engine electronics package. The set belongs to the Electronic control modules and controllers category, enabling a consistent and technically correct replacement of components responsible for the powertrain's operation. This is a particularly advantageous option in the event of an ECU failure, immobilizer issues, or the need to match electronics to a specific vehicle configuration.

Specifications and technical data

• SKU: 7640005-13
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7640005
• Substitutable numbers: 7640005, 12147640005, 7589971, 12147589971, 7640001, 12147640001, 0 261 S04 161, 0261S04161, 9147195, 61359147195, 9147199, 61359147199, 6943830, 61356943830, 9147184, 61359147184, 6943834, 61356943834, 6943836, 61356943836, 9147173, 61359147173
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application and technical compatibility

The presented set is designed for Mini Cooper R55 and R56 models equipped with the 120 HP N12 petrol engine and a manual transmission. Combining the DME engine controller with the CAS3 module and a set of two keys ensures the consistency of the immobilizer system, which facilitates installation and reduces the need for additional programming on the vehicle side.

Thanks to this solution, you can systematically resolve common engine starting problems, CAN network communication errors, or improper powertrain operation resulting from electronic damage. The ECU + CAS3 + keys set is particularly useful when replacing the complete control electronics after a major failure or an unsuccessful coding attempt.

Benefits of using a complete ECU set

Choosing a complete package from this group of components brings a number of practical assembly and service benefits:

• consistency of the engine controller and CAS3 module in one set,
• two keys matched to the vehicle's electronics,
• reduced risk of software conflicts between modules,
• easier diagnostics after installation,
• possibility of faster restoration of the vehicle's full functionality.

For workshops, this means shorter working time on the vehicle, and for the user – more efficient fault removal and more stable powertrain operation. Electronic control modules and controllers in the form of a complete set are particularly valued for repairs where software and configuration compatibility is crucial.

Characteristics of the used ECU set

The offered item belongs to the group of used parts, which in the case of engine electronics often represents a reasonable compromise between repair cost and functionality. This type of solution is frequently chosen for daily-driven vehicles, where correct system operation is more important than the factory-new status of the component.

A used ECU set with the CAS3 module and keys allows for an economical repair without sacrificing the required powertrain operating parameters. With proper installation and verification of compatibility with the specific Mini Cooper R55/R56 version, it can effectively replace a damaged factory set, restoring correct engine starting and control.

Support in selecting electronics and technical knowledge

When selecting used engine controllers, CAS modules, and keys, it is crucial to pay attention to compatibility with the specific equipment version, fuel type, and transmission. Proper matching reduces the need for additional programming and minimizes the risk of communication problems between modules.

If you want to better understand when choosing a used ECU set is profitable and how to safely approach installation and diagnostics, it is worth checking the practical advice in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?. You will find tips there regarding the selection of electronics, verification of compatibility, and common mistakes made when replacing modules.

Expanding repairs within Mini electronics

If you are planning a comprehensive repair or upgrade of the control electronics area in your Mini and need other components from the same group, such as additional controllers, auxiliary modules, or onboard system controllers, check the available parts in the Mini electronic control modules and controllers category.