BMW E60 E61 E90 E91 330i 530i Petrol N52 ECU Kit DME 7555361 CAS2 Key Automatic

BMW E60 E61 E90 E91 330i 530i Petrol N52 ECU Kit DME CAS2 Key Automatic is a practical solution for workshops and users looking to efficiently restore full functionality to their powertrain electronics. This kit from the Electronic control modules and ECUs category allows for a technically correct replacement of a damaged control system, reducing the risk of issues with the immobilizer and vehicle starting.

Specifications and technical data

• SKU: 7555361-7
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555361
• Substitutable numbers: 12147577970, 7577970, 12147555361, 7555361, 5WK90078, 61356943771, 6943771
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application and function of the BMW E60 E61 E90 E91 330i 530i Petrol N52 ECU Kit DME CAS2 Key Automatic

The presented kit is designed for BMW 3 and 5 series models equipped with the N52 petrol engine and an automatic transmission. In one package, you receive a complete powertrain control system – the DME engine control unit working in conjunction with the CAS2 module and a matched key, which facilitates the restoration of proper communication between the engine electronics and the vehicle's security system.

Thanks to the factory configuration for a petrol unit and automatic transmission, the kit ensures correct handling of engine operating parameters, gear shifting strategies, and starting functions. This is particularly important when replacing a damaged controller after an electrical failure, water damage, or a failed programming attempt.

Benefits of installing the complete BMW E60 E61 E90 E91 330i 530i Petrol N52 ECU Kit DME CAS2 Key Automatic

Choosing a complete control kit instead of a single module significantly simplifies the repair process. The kit contains elements that are already synchronized with each other, which limits the need for deep interference with the immobilizer system and minimizes the risk of conflicts between modules. For a workshop, this means shorter diagnostic and installation time, and for the user – a faster return of the vehicle to service.

Electronics from this group are designed for precise control of the powertrain, which is why a correctly selected and configured kit contributes to stable engine operation, smooth automatic transmission performance, and proper handling of comfort functions related to starting the vehicle.

Technical characteristics in the context of installation

The set is intended for petrol-powered vehicles, which is crucial when selecting a controller for a specific engine configuration. Integration with an automatic transmission means that the controller software is prepared to work with the transmission mechatronics, gear shift logic, and security systems related to drive mode selection.

During installation, it is recommended that the configuration and any necessary matching to a specific vehicle be performed by a workshop equipped with appropriate BMW diagnostic software. This allows for correct coding of equipment, adaptation to the existing installation, and verification of communication on the data bus after the kit is installed.

Product condition and service purpose

The offered set comes from the group of used Electronic control modules and ECUs, making it an attractive service solution in situations where repairing the original controller is unprofitable or impossible. A used kit of this type allows for a significant reduction in repair costs compared to purchasing new components, while maintaining structural compatibility with the factory vehicle system.

Before installation, it is worth verifying the configuration compatibility with the specific BMW model and consulting the adaptation method with an experienced automotive electrician. This allows you to fully utilize the potential of the kit and avoid additional work related to re-programming.

Technical support and selection of the appropriate module

If you want to better understand how to safely select and install used engine controllers and other electronic modules, check out the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. You will find practical tips on selecting by OEM numbers, hardware and software compatibility, and the most frequently asked service questions.

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