Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME 7600020 + CAS3 + 2 Keys

Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME + CAS3 + 2 Keys is a complete electronic set designed for the Mini powertrain with the N12 1.6 120HP engine. The kit includes the DME engine control unit, the CAS3 module, and two matched keys, ensuring consistent, professional handling of the immobilizer and engine management. This is a practical solution for workshops and users looking for a proven, factory-spec engine control system.

Specifications and technical data

• SKU: 7600020-3
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7600020
• Substitutable numbers: 1214758997212147600020026120196661356943822, 75899727600020, 0261201966, 6943822, 12147600076, 1214757226412147572276, 1214757225612147572260, 121475722681214762000512147572270, 121476200761214762000112147620020, 121475722741214757227212147, 12147589971, 7589971, 12147640005, 7640005, 12147600020, 7600020, 7600076
• Category: ECUs & Computer Modules

Application and function of the ECU DME + CAS3 kit

The presented set belongs to the Electronic control modules and ECUs category and is dedicated to Mini Cooper R55 and R56 models with the 120HP N12 petrol engine. The DME controller is responsible for precise management of fuel injection, ignition, engine accessories, and communication with other vehicle modules, while the CAS3 integrates immobilizer functions, key authorization, and engine starting. The inclusion of two keys in the set facilitates the quick restoration of full vehicle functionality after replacing the electronics.

Benefits of installing the complete DME + CAS3 + 2 keys kit

Using a complete engine control kit with the CAS3 module and keys significantly simplifies the process of repairing or replacing electronics in the powertrain area. In practice, this means:

• consistent matching of the DME controller and CAS3 module in terms of software and security,
• minimizing issues with the immobilizer and coding procedures,
• faster diagnostics and vehicle startup after installation,
• cost savings compared to purchasing individual components separately.

For workshops specializing in the Mini brand, this kit is a practical and safe service solution, allowing for reduced vehicle downtime and limiting the risk of incompatibility between modules.

Product characteristics and condition

The offered set comes from a dismantled Mini vehicle and is marked as a used original part. This ensures factory-level compatibility with the electrical installation and communication network architecture in the Mini Cooper R55/R56 with the N12 engine. Compared to aftermarket replacements, original control modules ensure predictable behavior in the CAN network, stable cooperation with other controllers, and compliance with factory diagnostic procedures.

Due to the nature of electronic parts, it is recommended to perform standard diagnostics and verify software compatibility with the specific vehicle configuration before installation. In many cases, a set of this type allows for reducing the scope of programming to the absolute minimum, which is beneficial in terms of both time and cost.

Installation and service tips

When replacing the ECU DME + CAS3 + keys kit in a Mini Cooper R55/R56, it is worth paying attention to several technical aspects:

• proper disconnection and reconnection of the battery to avoid voltage surges in the system,
• checking the condition of electrical harnesses and connectors in the engine bay and inside the cabin,
• performing a full error read-out after installation and clearing them after the first start,
• checking the operation of comfort functions associated with the CAS3 (steering column lock, key recognition).

For users and service centers that also work with other brands on a daily basis, the general principles of handling electronic modules described in the article about BMW systems may be useful – many diagnostic procedures and the approach to working with used controllers are similar, so it is worth reading the material about iDrive systems and electronic modules for BMW 3 and 5 series.

Expanding repairs in the Mini electronics area

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

Choosing original, used control modules is a reasonable compromise between cost and quality – it allows you to maintain the factory logic of system operation while reducing expenses compared to new components. The Mini Cooper R55 R56 N12 1.6 120HP Engine ECU Kit DME + CAS3 + 2 Keys set provides a solid foundation for restoring the full efficiency of the powertrain in your Mini, while maintaining a high level of safety and vehicle electronics functionality.