Mini Cooper R55 R56 Petrol N12 1.6 ECU Kit DME CAS3 + Key 7640004 Manual

Mini Cooper R55 R56 Petrol N12 1.6 ECU Kit DME CAS3 + Key is an original electronic control module designed for 1.6 N12 petrol engines paired with a manual transmission. This engine control unit from the Electronic control modules and controllers category ensures precise management of the powertrain, supporting smooth operation and correct throttle response. It is a solution dedicated to users who want to restore the full performance of their Mini's powertrain without interfering with the factory electronics architecture.

Specifications and technical data

• SKU: 7640004-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7640004
• Substitutable numbers: 12147589972, 7589972, 12147572264 12147572276 12147572256 12147572260, 7572264 7572276 7572256 7572260, 12147572268 12147620005 12147572270 12147620076, 7572268 7620005 7572270 7620076, 12147620001 12147620020 12147572274, 7620001 7620020 7572274, 12147572272 121
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented engine computer is designed to work with the 1.6 N12 petrol engine in Mini R55 and R56 series models equipped with a manual transmission. It is responsible for controlling key engine parameters such as fuel dosage, ignition, and auxiliary equipment operation, ensuring the powertrain maintains proper performance and stability under various operating conditions.

By using an original controller from the Electronic control modules and controllers group, full compatibility with the factory electrical installation and vehicle software is maintained, which facilitates integration with other onboard modules.

Function of the engine controller in Mini R55/R56

The engine computer in this Mini model acts as the central unit managing the powertrain. Based on sensor signals, it analyzes engine operating conditions in real-time and controls actuators accordingly. In practice, this translates into:

• maintaining the correct air-fuel mixture in the petrol engine,
• coordinating ignition and injection timing based on load and engine speed,
• cooperating with safety and comfort systems that require data from the engine control unit,
• monitoring errors and storing fault codes to facilitate diagnostics.

A properly selected and functional controller allows for maintaining the factory operating parameters of the N12 unit, reducing the risk of rough idling, power loss, or starting problems.

Technical characteristics and advantages of use

The presented module is intended for petrol-powered vehicles configured with a manual transmission, which is crucial when selecting the appropriate ECU. Using a controller with the correct configuration translates into:

• proper cooperation with the manual transmission drivetrain,
• consistency of control maps with the characteristics of the N12 1.6 engine,
• preservation of factory engine protection strategies,
• easier adaptation during programming and coding in the vehicle.

As an element from the Electronic control modules and controllers group, the engine computer is structurally prepared to work in the demanding environment of the engine bay, taking into account temperature changes, humidity, and vibrations. The used nature of the product allows for an economical restoration of vehicle efficiency while maintaining the original specification.

Practical installation and operating tips

When replacing the engine controller in a Mini R55/R56 with an N12 1.6 unit and manual transmission, it is necessary to account for the need to match the module to the specific vehicle, which usually involves programming, coding, and potential synchronization with the immobilizer. It is recommended to have these tasks performed by a workshop with appropriate diagnostic facilities to ensure full functionality of all systems associated with the ECU.

Selecting the right module is facilitated by the presence of the OEM part number and interchangeable numbers in the technical specification – this allows for verifying compatibility with your specific Mini before installation. This approach minimizes the risk of compatibility issues and shortens repair time.

Expanding knowledge about electronic modules

If you are interested in the broader context of how engine controllers and other electronic modules work in modern cars, it is worth reading material describing operation and repairs in premium class vehicles. Practical information on the operation of controllers, diagnostics, and the use of salvaged 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 using salvaged parts?, which helps to better understand the importance of correctly selected control modules.

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 engine controllers, powertrain management modules, or other electronic control systems, check the available parts in the Mini Electronic control modules and controllers category.