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 the manual transmission version. It enables stable, repeatable control of engine operating parameters, supporting the proper functioning of fuel supply, ignition, and engine protection systems.

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 the BMW E90 325i model with the N52 engine is responsible for coordinating key engine processes, such as fuel injection, ignition control, and response to sensor signals. As a component dedicated to a specific vehicle configuration with a manual transmission, it ensures operational consistency with the factory electrical installation and other onboard modules.

The module belongs to the Electronic control modules and ECUs group, meaning it has been designed to work with the vehicle's communication bus and diagnostic systems. This allows for the use of standard service procedures, error code reading, and adaptations performed using professional diagnostic testers.

Drivetrain compatibility

The presented ECU is designed to work with the N52 engine in the BMW 3 Series E90 in a manual transmission configuration. Proper matching to the transmission type is crucial for the correct handling of functions related to torque, load response, and communication with other modules responsible for safety and driving comfort.

Selecting the correct ECU for a specific engine and drivetrain version helps avoid issues with engine starting, communication bus errors, and malfunctions of auxiliary systems. This is particularly important when replacing a module in vehicles that previously experienced electronic faults or diagnostic problems.

Characteristics and advantages of using a pre-owned ECU

The offered item is in Used condition, meaning it has been dismantled and was previously operated in another vehicle. This type of solution is often chosen as an economical alternative to new components while maintaining the manufacturer's original specifications. In practice, this allows for restoring the efficiency of the engine control system at limited repair costs.

The main benefits of using an original, pre-owned ECU include:

• maintaining the factory operating logic of the powertrain,
• possibility of integration with the existing installation without interfering with electrical harnesses,
• compliance with BMW factory diagnostic procedures,
• potentially shorter repair time compared to repairing a damaged module.

Installation and operational tips

When replacing the engine ECU in a BMW E90 325i N52, procedures related to coding and potential adaptation to the specific vehicle must be taken into account. In many cases, matching the module to the immobilizer and equipment configuration is required; therefore, it is recommended that installation and programming be performed by a workshop equipped with appropriate service software.

To ensure long-term and stable system operation, it is worth paying attention to the condition of the electrical installation, the correctness of grounds, connectors, and the general condition of the power supply system. A properly selected and configured ECU can significantly reduce the occurrence of engine-related errors, facilitate diagnostics, and maintain engine performance parameters at levels consistent with the manufacturer's specifications.

Expanding the control system and selecting electronics

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 additional control modules, auxiliary ECUs, or related electronic systems, check out the available parts in the BMW Electronic control modules and ECUs category.

When choosing a pre-owned engine ECU, it is worth using practical tips regarding electronics selection, installation procedures, and assessing the cost-effectiveness of purchasing second-hand components – you can find a detailed discussion of these issues in the article The second life of electronics – when is it worth opting for used engine ECUs, comfort modules, and parking sensors?.