Mini Cooper S JCW R56 N14 1.6 211HP Engine ECU Kit DME 7590857 CAS3 Key Manual

Mini Cooper S JCW R56 N14 1.6 211HP Engine ECU Kit DME CAS3 Key Manual is a complete control set designed for the sports version of the Mini with an N14 petrol engine and a manual transmission. The combination of the engine control unit, CAS3 module, and key ensures consistent operation of the powertrain and authorization system, facilitating professional repair or replacement of the factory set. This solution allows for maintaining the correct operating parameters of the power unit and proper communication with the vehicle's electrical system.

Specifications and technical data

• SKU: 7590857-3
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7590857
• Substitutable numbers: 7590857, 12147590857, 7601756, 12147601756, 7590858, 12147590858, 7630107, 12147630107, 7631101, 12147631101, 7641101, 12147641101, 7610107, 12147610107, 0261S04443, 0 261 S04 443, 61359395657, 9395657
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the control set

The presented set includes the engine control unit, the CAS3 module responsible for ignition authorization, and a matched key. In the Mini Cooper S JCW R56 N14 1.6 211HP configuration, this set is responsible for:

• managing the operating parameters of the petrol unit,
• cooperation with the manual transmission,
• immobilizer support and key identification,
• communication with other electronic modules in the vehicle.

By maintaining the consistency of the components in one set, the risk of software matching issues and security system synchronization problems is minimized.

Benefits of using the original Mini module

The original engine control unit integrated with the CAS3 and key provides the correct control maps for the N14 unit, which translates into stable operation across the entire rev range. Electronic control modules and controllers in this configuration are factory-adapted to the characteristics of the 211 HP engine and for cooperation with the manual transmission, which is important for the proper operation of functions such as torque control or throttle response.

Using a complete set also allows for reducing the time required for configuration during installation – the key, CAS3, and engine controller are already linked, which facilitates the work of electricians and diagnosticians.

Application in a petrol system with a manual transmission

The N14 petrol engine in the Mini Cooper S JCW R56 requires precise control of fuel dosage, ignition, and auxiliary equipment. The presented set has been prepared specifically for such a configuration, thanks to which it:

• supports the specific requirements of the petrol unit,
• is adapted to the logic of manual transmission operation,
• ensures signal consistency between the engine and other vehicle systems.

Such matching is important both for standard operation and for more dynamic driving, typical of the JCW version.

Characteristics of the used product

The item comes from dismantling, which means it is a used part that retains its factory design and purpose. For many Mini users, this is a practical way to restore vehicle efficiency while maintaining the original electronic architecture. A used control set often allows for faster repair than waiting for new components, while maintaining compatibility with the vehicle's installation.

Mini electronic control modules – expansion and repair

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 additional controllers, comfort modules, or engine management systems, check the available parts in the Mini electronic control modules and controllers category.

When working with premium vehicle electronics, it is worth knowing good practices regarding engine controllers and comfort modules – an article describing the servicing of iDrive systems and controllers in technologically related cars may be helpful, available here: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models.

If you are interested in a broader context of using dismantled parts in older cars and want to optimize repair costs, it is also worth reading the guide: No parts at the authorized service center? How to deal with repairing older models using dismantled parts.