Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME 7589971 + CAS3 + Key Automatic

Mini Cooper R55 R56 R57 N12 1.6 120HP ECU Kit DME + CAS3 + Key Automatic is a set from the Electronic control modules and controllers group, designed for MINI vehicles with the N12 engine and automatic transmission. The kit includes the DME/ECU engine controller along with the CAS3 module and a matched key, which significantly facilitates the professional replacement of powertrain electronics without the need for time-consuming programming from scratch.

Specifications and technical data

• SKU: 7589971-6
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7589971
• Substitutable numbers: 12147589971, 7589971, 12147640005, 7640005, 12147640001, 7640001, 12147589972, 7589972, 0261S04563, 61359147221, 9147221, 12147600020, 7600020, 12147600076, 7600076
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the ECU + CAS3 kit

The presented set is designed to work with the 120 HP N12 unit in the MINI Cooper R56 model, in a configuration with an automatic transmission. The combination of the DME controller with the CAS3 module and key ensures a consistent start authorization system, communication with the immobilizer, and engine management, which is crucial when replacing a damaged computer in modern vehicles. Thanks to the maintained integrity of the set, it is possible to restore the proper operation of the powertrain while maintaining factory security logic, without the need for tedious matching of individual components in various workshops.

Benefits of using a complete MINI controller

Using a complete ECU + CAS3 + key set in a MINI Cooper R56 brings a number of practical benefits for the workshop and the user:

• a consistent engine control and immobilizer system, reducing the risk of software conflicts,
• simplified adaptation procedure in the vehicle, especially in the case of advanced security systems,
• maintaining proper cooperation with the automatic transmission, which is important for smooth gear shifting,
• the possibility of faster diagnostics and vehicle startup after an engine electronics failure. For workshops specializing in the MINI brand, such a set is a convenient service solution, allowing to shorten vehicle downtime and limit the number of potential points of failure.

Condition, origin, and technical aspects

The item comes from the Mini brand offer and is classified in the Electronic control modules and controllers group. As a used part, the set is intended for informed users and workshops that can verify compatibility with a specific vehicle configuration and carry out proper installation along with the necessary diagnostic procedures. The DME computer in combination with the CAS3 module and key is particularly important in vehicles with an automatic transmission, where the engine controller works with the transmission control system, safety systems, and comfort electronics. A properly selected set allows for maintaining stable engine operation, correct gear shifting, and proper communication in the vehicle's bus.

Selection by numbers and ECU compatibility

When selecting this type of set, it is crucial to match it by OEM part number and interchangeable numbers, as well as to take into account the software version and vehicle equipment configuration. In workshop practice, this means the need to compare data with the original controller and verify compatibility with a specific MINI Cooper R56 with an N12 engine and automatic transmission. To better understand the principles of selecting used engine controllers, CAS modules, and other electronic components, it is worth using the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. The article discusses, among other things, selection by VIN/OEM, hardware and software compatibility issues, and practical installation examples.

Expansion of MINI electronics modernization

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