BMW 3 5 Series E60 E90 325i 525i N52 218HP DME ECU 7567178 Kit CAS3 Key Manual

BMW 3 5 Series E60 E90 325i 525i N52 218HP DME ECU Kit CAS3 Key Manual is a specialized module from the Electronic control modules and ECUs category, designed for precise management of the powertrain in manual transmission versions. This solution allows for restoring the proper operation of the engine control system while maintaining the dynamics and refinement characteristic of BMW.

Specifications and technical data

• SKU: 7567178-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7567178
• Substitutable numbers: 12147567178, 7567178, 12147577970, 7577970, 5KW98085, 61356943834, 6943834
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The engine control unit in a BMW E90 series with an N52 engine is responsible for coordinating all key engine operating parameters, such as fuel injection, ignition, and interaction with sensors and other vehicle electronics. The ECU in this configuration is adapted for vehicles equipped with a manual transmission, which is essential for proper communication with the drivetrain and safety systems. A correctly selected control unit helps avoid issues with starting, rough engine operation, or communication errors with other vehicle modules. It is a component that directly affects engine stability and predictable responses to driver inputs.

Selection and technical compatibility

The presented control unit belongs to the group of original BMW solutions, which facilitates matching it to a specific vehicle configuration. When selecting a module, it is crucial to pay attention to:

• compatibility with the N52 engine in the BMW E90 325i model,
• adaptation for a manual transmission,
• the correct part number family and interchangeable numbers. Proper matching based on manufacturer markings and reference numbers minimizes the risk of problems with coding, adaptation, and communication within the vehicle's bus system. As a result, the control unit can be integrated into the existing electronic architecture without interfering with the factory system logic.

Characteristics of the used control unit

The offered module comes from the secondary market, which allows for an economical restoration of the engine control system's efficiency while maintaining the original manufacturer's specifications. A used engine control unit is a solution often chosen for post-accident repairs, replacing damaged electronics, or addressing ECU communication issues in older BMW E90 vehicles. In practice, this means the ability to restore factory engine performance parameters without the need to invest in a new module, while maintaining compatibility with the existing installation and engine peripherals.

Benefits of using an original ECU module

Using a control unit dedicated to the BMW E90 325i N52 with a manual transmission provides a number of practical benefits:

• Consistency with the factory electronic architecture – the module works with other controllers in the vehicle according to the manufacturer's specifications.
• Stable engine operation – a correctly selected control unit reduces the risk of errors, limp mode, and diagnostic issues.
• Support for further diagnostics and programming – the module retains full compatibility with factory service tools and diagnostic software. Thanks to this solution, it is possible to effectively restore full powertrain functionality while preserving the driving characteristics typical of the BMW 3 Series E90 generation.

More about used electronics and BMW parts

If you want to better understand when choosing a used engine control unit is justified and how to safely select such a component for your car, check out the practical tips in the article: The second life of electronics – when is it worth choosing used engine ECUs, comfort modules, and parking sensors? For owners of Bavarian models who plan long-term vehicle operation and want to consciously use original parts from the secondary market, the following material will also be useful: BMW – sports performance and precision. How do original used parts extend the life of a Bavarian icon?

Related BMW Electronic control modules and ECUs

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 controllers, management modules, or auxiliary units, check out the available parts in the BMW Electronic control modules and ECUs category.