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

Complete ECU DME Engine Control Unit with CAS3 Module and Key for Mini Cooper S JCW R56 with N14 1.6 211 HP engine is a solution designed for vehicles with a manual transmission and petrol fuel. The set comes from the original Mini line and is configured as a cohesive electronic package, facilitating the restoration of proper powertrain operation after an electronic failure or engine replacement.

Specifications and technical data

• SKU: 7590857-2
• 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, 61359267609, 9267609, 61359395657, 9395657, 61359287535 61359237047 61359217853, 9287535 92875
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Kit Purpose and Configuration

The presented kit includes a complete engine control system for the John Cooper Works R56 version with the N14 211 HP engine, adapted for cooperation with a manual gearbox. The combination of the DME control unit, CAS3 module, and a matched key ensures the consistency of the immobilizer system, which is crucial when replacing electronics in modern Minis.

A kit configured in this way minimizes the risk of issues with start authorization, inter-module communication, and vehicle network errors, which in practice reduces diagnostic and installation time in the workshop.

Benefits of Using a Complete ECU Kit

Using a complete control set instead of individual modules is particularly beneficial in cases of serious electronic malfunctions or engine swaps. In one package, you receive:

• a cohesive engine control system tailored to the JCW N14 1.6 211 HP specification,
• an integrated CAS3 module working with the supplied key,
• maintained coding compatibility between the kit components.

This reduces the need for time-consuming programming, and the risk of module conflicts is significantly lower than when mixing parts from different sets.

Technical Characteristics Regarding the Drivetrain

The kit is designed for petrol-powered cars, meaning the control maps, injection and ignition strategies, and operating logic are adapted to the characteristics of the N14 engine. Simultaneously, the configuration for a manual transmission ensures proper cooperation with the drivetrain components, including start logic, torque control, and communication with other vehicle modules.

Such adaptation is important for both the stability of the unit's operation and the correct functioning of onboard systems that utilize data from the engine control unit.

Condition and Service Application

The item comes from the Electronic Control Units and Controllers category and is offered as a used part, making it an attractive cost alternative while maintaining the original Mini specification. This type of kit is particularly useful in specialized workshops dealing with electronics repair, rebuilding accident-damaged cars, or professional modifications within the powertrain system.

Before installation, standard verification of compatibility with the specific vehicle equipment version and performing basic adaptation procedures according to service practice for Mini R56 models is recommended.

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

To compare manufacturers' approaches to preserving brand character and using original components, you can read an article on our blog about how used parts help maintain the DNA of Audi models, which well illustrates the importance of correctly selected electronic modules also in Mini cars.