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 control set designed for MINI vehicles with the N12 engine and an automatic transmission. The kit includes the DME/ECU engine controller along with the CAS3 module and a matched key, which facilitates professional replacement of the powertrain electronics without the need for time-consuming programming from scratch. This is a practical solution for workshops and users who want to restore the proper operation of the powertrain after a controller failure.

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 control set

The presented set from the Electronic control modules and controllers category is responsible for managing the operation of the 120 HP N12 petrol engine and cooperating with the automatic transmission. The DME/ECU controller manages, among other things, fuel dosage, ignition, and engine operating parameters, while the CAS3 module is responsible for start authorization and communication with the key. Using a matched key in one set with the CAS3 and ECU significantly simplifies the adaptation process in the car.

Benefits of using the complete ECU + CAS3 + key

The control set for the MINI Cooper R55 R56 R57 N12 1.6 120HP allows for a consistent replacement of key engine electronics and start system components. In practice, this means:

• maintaining compatibility between the engine controller and the CAS3 module,
• easier immobilizer configuration thanks to the included key,
• reducing the risk of starting problems after installation,
• the ability to restore proper powertrain operation after the original controller is damaged.

For workshops specializing in the MINI brand, such a set is a convenient base for further vehicle configuration, and for the end user – a chance to efficiently resolve issues related to engine electronics.

Integration with automatic transmission

The discussed DME ECU is prepared for cooperation with an automatic transmission, which is important when selecting a controller for a specific vehicle configuration. Proper matching of electronics to the transmission type affects:

• correct communication between the engine controller and the transmission control module,
• stable gear shifting under various load conditions,
• maintaining appropriate engine operating parameters during gear changes.

Thanks to this, the set is particularly useful for repairs of MINI Cooper R55 R56 R57 models with an automatic transmission, where software and configuration consistency between individual modules is required.

Product characteristics and service application

The item comes from the Mini brand and is intended for service and repair applications in vehicles with the N12 engine. As a used electronic module, it may require appropriate adaptation and configuration in the vehicle; however, the workshop only needs to match the set to a specific car and perform the necessary diagnostic procedures. This type of set is often chosen as an economical alternative to new controllers while maintaining the original vehicle electronics architecture.

More about the operation of electronic modules

If you want to better understand how engine controllers, comfort modules, or multimedia systems work in modern cars, it is worth reaching for specialized materials. Practical tips on repairing controllers and using dismantled parts can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models, which discusses the approach to working with advanced electronics in premium vehicles.

If you are planning a comprehensive repair or upgrade of the engine control and starting system area in your MINI and need other components from the same group, such as additional controllers, engine management modules, or systems cooperating with the immobilizer, check the available parts in the Mini electronic control modules and controllers category.