BMW E90 E92 330i 272HP N52N Engine ECU Kit DME 7576297 + CAS3 + Key Manual

BMW E90 E92 330i 272HP N52N Engine ECU Kit DME + CAS3 + Key Manual is a complete engine control set designed for petrol versions of the BMW 3 Series with a manual transmission. It includes the engine control unit (ECU), the CAS3 module, and a matched key, which facilitates efficient replacement of the entire system without the need for time-consuming programming from scratch. This is a practical solution for workshops and users who want to restore the full functionality of the N52N unit.

Specifications and technical data

• SKU: 7576297-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7576297
• Substitutable numbers: 12147581123, 7581123, 12147576297, 7576297, 12147567362, 7567362, 12147567227, 7567227, 12147574540, 7574540, 12147574544, 7574544, 12147577068, 7577068, 12147575057, 7575057, 12147570376, 7570376, 12148613000, 8613000, 5WK90188, 61356943834, 6943834
• Fuel type: Petrol
• Gearbox type: Manual
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Application and function of the ECU kit

The presented kit belongs to the Electronic control modules and ECUs category and is responsible for the comprehensive management of the N52N engine in the BMW 330i. The DME controller manages, among other things, fuel injection, ignition, and communication with other vehicle systems, while the CAS3 module is responsible for key authorization and starting the engine. Thanks to this set, consistent and stable operation of the powertrain is possible after replacing a faulty controller.

Kit construction and benefits of a complete replacement

The offered solution includes the Engine Control Unit, the CAS3 comfort and security module, and a matched key, which allows for the transfer of the entire engine control ecosystem from one car to another. Such a configuration significantly simplifies the service process – it eliminates the need to match individual components and minimizes the risk of conflicts between the controller and the immobilizer system.

For workshops specializing in BMW, this means shorter diagnosis and installation times, and for the end user – a faster return of the vehicle to full efficiency. Electronic consistency within a single set also reduces potential communication issues on the vehicle's bus.

Compatibility with the N52N engine and manual transmission

The kit has been prepared for the 272 HP N52N unit in BMW E90 and E92 330i models with a manual transmission. Proper matching to the fuel type and transmission type is crucial for the correct operation of functions such as torque control, throttle response, or cooperation with safety systems. Dedicated controller software ensures correct engine operating maps and compliance with the factory vehicle configuration.

Characteristics of the used product

The offered kit comes from dismantling and is a used item, which is an attractive cost alternative to new components. This type of solution is often chosen by professional service centers when the priority is to maintain original BMW electronics while optimizing the repair budget. Original BMW components from the secondary market allow for maintaining the factory engine performance characteristics without the need for aftermarket replacements.

Installation tips and vehicle integration

When installing the ECU kit with CAS3 and the key, it is crucial to follow the correct work sequence and use service procedures specific to the BMW 3 Series. The kit, as a complete set, facilitates integration with the vehicle's electrical installation and security system, reducing the need for deep software intervention. Installation in a specialized workshop that has the appropriate diagnostic equipment to verify the controller's communication with other modules in the car is recommended.

If you want to better understand how to use used BMW engine controllers and other electronic modules in the 3 and 5 Series, it is worth checking out the practical tips contained in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models, where working with dismantled parts is described, among other things.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional controllers, auxiliary modules, or engine management systems, check the available parts in the BMW electronic control modules and ECUs category.