Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + Key Manual

The Mini Cooper S R55 R56 N14 1.6 174HP ECU Kit DME 7641003 + CAS3 + Key Manual is a complete engine control set designed for N14 engine versions with a manual transmission. The kit includes the DME engine control unit, the CAS3 module, and a matched key, making it easier to restore functional powertrain electronics after a failure or when replacing a used engine. By maintaining component consistency, the set offers a practical service solution for Mini workshops and owners.

Specifications and technical data

• SKU: 7641003-6
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7641003
• Substitutable numbers: 12147587549, 7587549, 12147631001, 7631001, 7641003, 0261S04158, 61359147195, 9147195
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose of the ECU Kit for Mini Cooper S N14

This kit is designed for Mini Cooper S models R55 and R56 with the turbocharged 174 HP N14 engine and a manual transmission. The combination of the DME control unit, CAS3 module, and key allows for unified control of starting functions, immobilizer, and engine management, which is particularly important when replacing electronics after damage or during a conversion from another system.

Functionality of the DME, CAS3, and Key

In this kit, the DME control unit is responsible for precise engine operation control, including fuel delivery, ignition, and interaction with other vehicle systems. The CAS3 module acts as the central authorization element, integrating the immobilizer with the key and ensuring proper communication with the vehicle's electronics. The included key is matched to the CAS3 module, reducing the need for additional workshop programming.

Application in Vehicles with Manual Transmission

The kit is configured for a manual transmission type, which is significant for torque control logic, interaction with safety systems, and starting functions. This solution allows for maintaining proper powertrain operating parameters in manual transmission Mini cars without the need to adapt components intended for other versions.

Benefits of Choosing a Used ECU Kit

A used DME control unit kit with a CAS3 module and key helps reduce repair costs while maintaining the original electronic architecture of the Mini. This type of kit is particularly useful in situations where the control unit is damaged, there are immobilizer issues, or the entire control package needs replacement after an engine swap. The consistency of components in a single kit simplifies the work for automotive electricians and reduces diagnostic and installation time.

Technical Support and Mini Electronics Selection

For users who want to better understand the specifics of selecting and installing used control modules, we have prepared a practical guide describing the principles of selection, compatibility, and installation of electronics in vehicles. Detailed information can be found in the article Used Automotive Electronics – Second-Hand ECU Modules and Sensors, which discusses selection by part numbers, programming issues, and common user questions.

If you are planning a comprehensive repair or upgrade of the engine electronics in your Mini and need other components from the same group, such as control units, comfort modules, or powertrain management systems, check the available parts in the category Mini Electronic Control Modules and Units.