Mini Cooper D R55 R56 LCI R60 N47N 1.6 112Hp Diesel ECU Kit DDE 8519663 CAS3 Key

Mini Cooper D R55 R56 LCI R60 N47N 1.6 112Hp Diesel ECU Kit DDE 8519663 CAS3 Key is a complete, used electronic set designed for Mini diesel engines, including the ECU engine controller and the CAS3 module with a key. This package is particularly useful when replacing a damaged controller, resolving immobilizer issues, or when there is a need to quickly restore proper communication within the powertrain. Thanks to the factory configuration, the components work together seamlessly, which facilitates diagnostics and installation.

Specifications and technical data

• SKU: 8519663-13
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 8519663
• Substitutable numbers: 13618519663, 8519663, 13618517727, 8517727, 13618512415, 8512415, 13618516739, 8516739, 13618506666, 8506666, 0281018991, 0 281 018 991, 61359267609, 9267609
• Fuel type: Diesel
• Category: ECUs & Computer Modules

Purpose and function of the set

The presented set belongs to the Electronic control modules and controllers group and is dedicated to Mini vehicles with a 1.6 diesel unit producing 112 HP. The set includes the ECU engine controller and the CAS3 module with a key, which allows for maintaining the consistency of the immobilizer system and the starting system without the need for time-consuming matching of individual components.

Such a solution is particularly beneficial in situations where there are problems with starting the vehicle, communication errors in the CAN network, or incorrect interaction between the engine controller and the security module. The complete set enables efficient restoration of proper powertrain operation, minimizing the risk of software incompatibility.

Key technical advantages

The set has been designed with Diesel engines in mind, which means that its software and configuration are adapted to the specifics of diesel unit operation – injection control, turbocharging, fuel dosage, and emission control systems. Combining the ECU with the CAS3 module and key ensures:

• maintaining the integrity of the immobilizer system,
• data consistency between the engine controller and the comfort/security module,
• reducing the need for additional programming to the absolute minimum,
• easier diagnostics during subsequent service inspections.

For workshops and users, this means a more predictable installation process and a lower risk of problems with starting the vehicle after replacing electronic components.

Practical application in Mini service

The used ECU + CAS3 set with a key is a good choice in situations where the original controller has suffered mechanical, thermal, or electrical damage, or when there have been problems with key reading or immobilizer synchronization. Using the complete set allows you to:

• shorten repair time compared to sourcing individual modules,
• preserve the factory logic of the security system,
• reduce costs compared to purchasing new OEM components,
• maintain high compatibility with the vehicle's original electrical architecture.

This solution is particularly valued in specialized Mini service centers that need proven, complete electronic packages for quick replacement.

Condition, origin, and quality aspects

The offered set is used, which in practice means it comes from a vehicle disassembly and has been verified for further operational suitability. For many users and workshops, this is a reasonable compromise between cost and functionality – especially in the case of advanced electronic components, where new parts can be significantly more expensive.

If you want to better understand when choosing used electronics makes sense and how to minimize risks when purchasing such components, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Support with selection and system expansion

When selecting an ECU set with a CAS3 module and key, it is crucial to match it to the specific engine version, vehicle generation, and installed equipment. In case of doubt, it is worth consulting an automotive electrician or diagnostician who will verify the configuration compatibility with your Mini and advise on the optimal installation method and any necessary programming.

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