BMW E90 E91 E92 N52N 325i 218HP Engine ECU Kit DME 7577068 + CAS3 + Key Manual

BMW E90 E91 E92 N52N 325i 218HP Engine ECU Kit DME + CAS3 + Key Manual is a complete electronic control unit designed for N52N petrol engines in BMW 3 Series vehicles with a manual transmission. The kit provides a solid foundation for professional engine control system repairs, restoring proper engine operation and performance stability. By using original BMW electronics from the Electronic control modules and ECUs category, you ensure high compatibility with the vehicle's factory installation.

Specifications and technical data

• SKU: 7577068-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7577068
• Substitutable numbers: 12147577068, 7577068, 12147581123, 7581123, 5WK90190 12147581124, 7581124, 61356943834, 6943834
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the engine ECU

The presented engine ECU kit is designed to work with the 218HP N52N petrol engine in BMW 3 Series E90, E91, and E92 models equipped with a manual transmission. It is responsible for precise management of fuel injection, ignition, auxiliary equipment, and communication with other vehicle modules, which translates into stable engine performance and predictable throttle response.

Thanks to its factory architecture, the ECU works with the vehicle's CAN bus, integrating with safety and comfort systems. A properly selected engine computer helps avoid starting issues, fault memory errors, and malfunctions in drivetrain-related systems.

Benefits of using an original BMW module

Using an original module from the Electronic control modules and ECUs group ensures:

• high compatibility with the factory wiring harness and vehicle software,
• stable operating parameters for the petrol engine across the full load range,
• proper cooperation with the manual transmission,
• the possibility of professional adaptation and coding at a specialized service center.

The used ECU kit is a solution that allows for optimized repair costs while maintaining OEM construction. For workshops specializing in the BMW brand, this is a practical base for further configuration, programming, and matching to a specific vehicle.

Application in the BMW 3 Series drivetrain

The engine computer in this kit is intended for use in a drivetrain based on the N52N petrol engine, where precise control of the mixture, ignition, and cooperation with the manual transmission is crucial. The module supervises, among other things, throttle response, idle stability, load-dependent operating strategies, and communication with other vehicle control units.

For the user, this means the ability to restore proper engine operation after electronic failure, ECU communication issues, or damage to the original computer. For a service center, it is a component that allows for a comprehensive repair of the engine control system while maintaining factory design solutions.

Professional installation and configuration

To fully utilize the potential of this kit, installation and programming in a specialized workshop equipped with appropriate BMW diagnostic software are recommended. Correctly matching the ECU to the specific vehicle (e.g., in terms of equipment, engine version, and transmission) helps avoid system errors, dashboard warning lights, or power limitations.

In the case of upgrading or repairing electronic systems in BMW 3 and 5 Series, including engine ECUs or comfort modules, it is worth checking the practical tips described in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using dismantled parts?, where best practices for working with used modules are discussed.

Expanding the BMW control system

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

This allows you to build a coherent electronics set based on OEM solutions, which facilitates diagnostics, coding, and subsequent vehicle operation, minimizing the risk of incompatibility between individual modules.