Mini Cooper R55 R56 N12 1.6 120HP ECU Kit Engine DME 7640005 CAS3 + Key Manual

Mini Cooper R55 R56 N12 1.6 120HP ECU Kit Engine DME CAS3 + Key Manual is an advanced electronic control unit designed for the Mini powertrain with the 120 HP N12 engine. This component is responsible for precise engine management and communication with the CAS system, ensuring stable unit operation and proper integration with the vehicle's other electronic systems. Designed to meet Mini's factory standards, this controller provides a functional service solution for engine control system repairs.

Specifications and technical data

• SKU: 7640005-3
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7640005
• Substitutable numbers: 12147589972, 7589972, 12147620005, 7620005, 0261S04161, 0 261 S04 161, 61359147191, 9147191, KZ
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the DME CAS controller

The DME CAS controller in a Mini with an N12 engine is responsible for coordinating engine operation, processing sensor signals, and sending commands to actuators. In practice, this means controlling combustion parameters, responding to accelerator pedal position, and interacting with the vehicle's security system. Using a dedicated module for this powertrain ensures the maintenance of the correct operating maps and characteristics intended by the manufacturer.

Compatibility with the powertrain and transmission

The presented controller is intended for Mini vehicles equipped with a manual transmission, which is crucial for proper interaction with the software and control logic. Using a module matched to a specific transmission type reduces the risk of communication errors, incorrect idle speeds, or issues with load response. This is particularly important during repairs where consistency between the engine controller and other powertrain components is required.

Component characteristics and service application

As a part of the Electronic control modules and controllers group, this DME CAS is intended for professional engine control system repairs in Mini vehicles. It is suitable for both replacing a faulty module and for advanced diagnostic work, where it is necessary to substitute a different controller with the appropriate hardware and software parameters. The product comes from dismantling, which allows for an economical restoration of vehicle performance while maintaining the original electronic architecture.

Benefits of using a used Mini controller

Using an original, used DME CAS controller allows for the preservation of Mini's factory design solutions, which facilitates integration with the electrical installation and existing security systems. In many cases, this is a beneficial alternative to aftermarket replacements, especially where software compatibility and predictable powertrain behavior are essential. With proper selection based on the OEM number or VIN, you can achieve stable and repeatable engine performance without interfering with the factory control logic.

Selection, installation, and technical support

Before installing the DME CAS controller in a Mini R56 with an N12 engine, it is recommended to verify compatibility with the specific vehicle equipment version and software. In practice, it is often necessary to match the module to the CAS system and configure it using appropriate diagnostic equipment. Proper selection based on the part number, interchangeable numbers, or vehicle data minimizes the risk of issues with engine starting and communication with other modules.

If you are planning a comprehensive repair or upgrade of your Mini's engine electronics and need other components from the same group, such as engine controllers, comfort modules, or security control units, check the available parts in the Mini electronic control modules and controllers category.

Expert knowledge and additional materials

When working with used ECU modules and controllers, it is worth using verified sources of information regarding selection, compatibility, and adaptation procedures. A detailed discussion of the principles of selecting electronics by OEM number, matching hardware and software versions, and practical installation examples can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

Additional tips regarding the operation and maintenance of dismantled components, including control modules, are provided in the Global Parts article: How to extend the service life of used car parts?, which helps optimize electronics performance and reduce the risk of premature failures.