BMW Mini Cooper 9 R55 R56 R57 N12 1.6 ECU Kit DME CAS 3 Key 7600020

BMW Mini Cooper 9 R55 R56 R57 N12 1.6 ECU Kit DME CAS 3 Key is a complete electronic set from the Electronic control modules and controllers group, designed for Mini vehicles with an N12 engine and manual transmission. The set includes an ECU DME engine controller, a CAS 3 module, and a key, which facilitates seamless adaptation of the powertrain electronics and immobilizer in the car.

Specifications and technical data

• SKU: 7600020-9
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7600020
• Substitutable numbers: 12147589972, 7589972, 12147600020, 0261201966, 61356943822, 7600020, 201966, 6943822, 12147600076, 12147572264, 12147572276, 12147572256, 12147572260, 12147572268, 12147620005, 12147572270, 12147620076, 12147620001, 12147620020, 12147572274, 12147572272, 12147572266, 12147589971, 7589971, 12147640005, 7640005, 7600076
• Category: ECUs & Computer Modules

Purpose and function of the control set

The presented set is dedicated to Mini Cooper models of the R55, R56, and R57 series with an N12 1.6 unit and manual transmission. Combining the ECU DME controller with the CAS 3 module and a matched key allows for maintaining the consistency of the security system and engine operating logic, which is important when replacing electronics after a failure or when troubleshooting vehicle starting issues.

In practice, this means that the entire system for engine management, key authorization, and immobilizer can be transferred as one logical set, which reduces the need for additional programming and minimizes the risk of conflicts between modules.

Benefits of using a complete ECU DME + CAS 3 + key

Using a complete control set in a Mini Cooper allows for:

• maintaining compatibility between the engine controller and the CAS 3 module,
• easier adaptation of the starting system thanks to the included key,
• reducing the time for diagnostics and electronics configuration after replacement,
• consistent operation of the immobilizer system and starting functions.

For workshops specializing in the Mini brand and users looking for service solutions, such a set is a practical way to restore the correct operation of the powertrain after damage to the original controller or CAS module.

Product characteristics and condition

The offered item comes from the Mini line and belongs to the Electronic control modules and controllers group, which guarantees a design consistent with the manufacturer's factory standards. The product is in used condition, which in the case of OEM electronics for Mini means an attractive compromise between cost and functionality, especially when repairing older generations of R55, R56, and R57 models.

The ECU DME, CAS 3, and key set is particularly useful in situations where several elements have been damaged simultaneously (e.g., after a power surge, flooding, or incorrect interference with the installation), as well as when previous attempts to program individual modules have proven unsuccessful.

Professional application and integration with vehicle electronics

The set has been designed to work with the factory electrical installation of the Mini Cooper, which allows for maintaining the original logic of engine control, starting, and security. Proper matching of the modules within one set facilitates:

• diagnosing faults related to starting issues or unstable engine operation,
• carrying out repairs based on OEM components from dismantling,
• reducing the need for deep interference in the vehicle's software.

For automotive electronics services, this is a convenient solution that allows focusing on correct installation and basic configuration, rather than time-consuming matching of individual modules from different sources.

Expert support and additional information

If you want to better understand how similar engine control systems, comfort modules, and security systems work in premium vehicles, it is worth reaching for expert materials. For example, in an article describing the servicing of iDrive systems and engine controllers in BMW 3 and 5 series, you will find practical tips on working with OEM electronics and parts from dismantling: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using parts from dismantling?.

If you are interested in a broader context of using used components in this brand, including typical faults and ways to limit them, a guide dedicated to economical operation and repairs may also be helpful: Used car parts for Mini Cooper – a way for style and savings.

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