Mini Cooper R56 N12 Petrol Engine ECU Kit DME 7573701 CAS3 + 2 Keys Automatic

Mini Cooper R56 N12 Petrol Engine ECU Kit DME 7573701 CAS3 + 2 Keys Automatic is a complete, used electronic control set designed for N12 petrol engines. The kit comes from the Mini Computers and Controllers range and provides a coherent package of components necessary for a professional engine control replacement in a vehicle with an automatic transmission.

Specifications and technical data

• SKU: 7573701-4
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7573701
• Substitutable numbers: 7573701, 12147589972, 7589972, 12147572264 12147572276 12147572256 12147572260, 7572264 7572276 7572256 7572260, 12147572268 12147620005 12147572270 12147620076, 7572268 7620005 7572270 7620076, 12147620001 12147620020 12147572274, 7620001 7620020 7572274, 1214757
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Control Modules

Purpose and function of the ECU DME + CAS3 kit

The presented kit includes the ECU DME engine controller, the CAS3 module, and two keys, which allows for maintaining the consistency of the immobilizer system and vehicle electronics. This set is particularly useful when replacing a damaged controller in a petrol Mini Cooper R56 with an automatic transmission, where compatibility between the control unit, security module, and key transponders is required.

Thanks to the factory configuration for the N12 petrol engine and automatic transmission, the kit ensures proper cooperation with the drivetrain, starting system, and vehicle security features. The completeness of the electronics minimizes the need for additional programming by the workshop, which translates into a more efficient repair process.

Benefits of using a complete controller kit

Using a ready-made ECU DME kit with the CAS3 module and keys allows you to avoid typical problems related to software incompatibility, differences in immobilizer configuration, or the need for time-consuming matching of individual components. In practice, this means:

• maintaining the consistency of the vehicle's security system,
• easier adaptation in a vehicle with an N12 petrol engine,
• proper cooperation with the automatic transmission,
• reducing the risk of communication errors between modules.

A used kit of this type is often chosen by workshops specializing in the Mini brand as an economical solution that is also technically matched to the specific drivetrain configuration.

Application in petrol vehicles with automatic transmission

The discussed set has been prepared for Mini Cooper R56 cars with an N12 petrol engine, equipped with an automatic transmission. Adjustment to the specific fuel type and transmission type is crucial for the proper operation of the control system, including gear shift strategies, fuel metering, and torque control.

Proper matching of the control electronics to the drivetrain configuration affects the stability of the engine's operation, the smoothness of gear shifts, and the correct functioning of safety features. For this reason, choosing a kit dedicated to the N12 petrol engine and automatic transmission is an essential element of a professional repair.

Characteristics of the used product

As an aftermarket item, the ECU DME kit with the CAS3 module and keys represents a reasonable compromise between cost and functionality. Used control electronics, originating from an original Mini installation, retain factory operating characteristics and are widely used in repairs where compatibility with vehicle equipment and predictable system behavior are important.

Before installation, it is recommended to perform a standard verification of compatibility with the specific vehicle equipment version and to carry out the necessary adaptation procedures in the vehicle, in accordance with service practices for engine controllers and security modules.

Mini Computers and Controllers – expansion and repairs

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other components from the same group, such as engine controllers, control modules, or DME units, check the available parts in the Mini Computers and Controllers category.

More about used automotive electronics

When choosing a used engine controller or a complete ECU kit, it is worth knowing the best practices for selecting and installing such components. Practical tips on assessing the condition, matching, and operation can be found in the article Second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

If you want to better understand the specifics of the secondary market and dispel doubts regarding the quality of used components, the guide Used car parts: Myths and facts you need to know, which discusses the most common concerns related to such solutions, may also be helpful.