BMW E60 E61 530i E90 E91 330i N52 258HP Engine ECU Kit DME 7559178 CAS2 2 Keys

BMW E60 E61 530i E90 E91 330i N52 258HP Engine ECU Kit DME CAS2 2 Keys is a complete engine control kit for petrol BMW models with an automatic transmission, including the DME module, CAS2 module, and two keys. This set allows for a seamless transfer of powertrain electronics between vehicles while maintaining the integrity of the immobilizer system and the control logic of the N52 unit. This solution enables an organized replacement of the engine control unit in 5 Series E60/E61 and 3 Series E90/E91 vehicles.

Specifications and technical data

• SKU: 7559178-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7559178
• Substitutable numbers: 12147559178, 7559178, 61356981416, 6981416, 12147577970, 7577970, 12147561244, 7561244, 5WK98081
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented kit is dedicated to the 258 HP N52 petrol engine used in BMW 5 Series E60/E61 530i and 3 Series E90/E91 330i models equipped with an automatic transmission. Combining the DME controller with the CAS2 module and paired keys ensures security system consistency and proper communication within the vehicle's bus. A complete powertrain electronics configuration in one package reduces the risk of compatibility issues between individual components, which is particularly important when replacing the ECU in modern BMW petrol systems.

Kit construction and function of individual components

The kit includes a DME engine controller responsible for managing the N52 unit, a CAS2 module that handles start authorization functions, and two keys that work with this module. This configuration allows for maintaining data consistency regarding the immobilizer, key coding, and ignition authorization. By combining these elements into one package, the workshop or user receives a foundation for transferring the complete engine control system, which facilitates the adaptation process in the target vehicle and reduces the number of potential failure points.

Benefits of using a complete ECU kit

• Consistent security system – The DME, CAS2, and keys come from a single set, which simplifies immobilizer configuration.
• Simplified installation procedure – reduces the need for deep programming of individual modules from scratch.
• Better control over the N52 petrol engine – maintains proper control logic and communication with other vehicle modules.
• Solution tailored for automatic transmission – the controller is prepared to work with this type of gearbox.

Condition and use in workshop practice

The kit comes from a used vehicle, making it an attractive alternative to new components while maintaining the original manufacturer's specifications. In workshop practice, such a set is often used when replacing a damaged engine controller, dealing with immobilizer issues, or during engine swaps within the same model generation. Before installation, it is recommended to verify the vehicle configuration compatibility and perform appropriate diagnostic and adaptation procedures using specialized BMW service software to ensure stable operation of all systems related to engine electronics.

BMW electronic control modules and controllers – expansion and service

If you are planning a comprehensive repair or upgrade of your BMW's engine area and need other components from the same group, such as engine controllers, comfort modules, or transmission control units, check the available parts in the BMW electronic control modules and controllers category.

Technical support and selection of used components

When working with premium vehicle electronics, it is crucial to maintain the original characteristics of the control systems and use parts of confirmed origin. It is worth reading the material describing how used components affect the preservation of the factory properties of premium segment vehicles – you can find more on this topic in the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?. If you care about precise matching of electronics to a specific BMW unit, the VIN number and procedures for its use when selecting parts may be helpful – you can find practical tips in the guide How to select original used parts for BMW, Audi, and Mercedes using the VIN number?.