BMW E60 E61 E90 E91 325i 525i Petrol N52 ECU Kit DME 7555361 CAS2 + Key Manual

BMW E60 E61 E90 E91 325i 525i Petrol N52 ECU Kit DME CAS2 + Key Manual is an original electronic control module designed for N52 petrol engines paired with a manual transmission. This specialized ECU from the Electronic control modules and controllers category ensures precise engine management, supporting stable performance and proper integration with the rest of the BMW vehicle's electronics.

Specifications and technical data

• SKU: 7555361-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555361
• Substitutable numbers: 12147577970, 7577970, 12147555361, 7555361, 61356943771, 6943771, 5WK90078
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented engine computer is dedicated to BMW 3 Series E90 325i and 5 Series E60 525i models with the N52 petrol engine and a manual transmission. As the central element of the powertrain control system, it is responsible for processing sensor signals, controlling fuel injection, ignition, and communicating with other electronic systems in the vehicle. This enables the maintenance of correct engine operating parameters, optimal dynamics, and proper response to driver inputs.

Benefits of using an original BMW ECU

Using an original engine computer in a BMW with an N52 unit allows for the preservation of factory control logic and compatibility with the vehicle's electrical system. A properly selected controller:

• ensures consistency with BMW's factory software and electronic architecture,
• facilitates diagnostics using dedicated service tools,
• reduces the risk of communication errors with other modules in the vehicle,
• allows for the maintenance of predictable engine performance parameters after adaptation and potential programming.

For workshops and users, this means a more predictable installation process and a lower risk of issues resulting from electronic incompatibility.

Technical characteristics in the context of the powertrain

The engine computer is designed to work with the N52 petrol engine and a manual transmission, which is crucial when selecting the appropriate controller for a specific vehicle configuration. Proper matching to the fuel type and transmission type affects:

• correct torque mapping and fuel dosage,
• proper handling of functions related to clutch operation and drivetrain,
• stable idling and smooth gear changes.

This allows the controller to effectively interact with the mechanical components of the powertrain, maintaining the characteristics intended by the manufacturer.

Condition, selection, and application in service practice

The offered module is a used item, making it an attractive cost-effective solution for electronic repairs in BMW vehicles with the N52 engine. Before installation, it is necessary to consider the need to match the controller to the specific vehicle – in workshop practice, this usually involves programming, potential coding, and adaptation to the immobilizer and vehicle equipment.

When selecting an engine computer, it is crucial to compare the OEM part number and available interchangeable numbers with the vehicle's specifications. This information has been gathered in the technical specifications section, which facilitates verification of compatibility with a specific version of the BMW E60 or E90.

Expert support and related electronic components

If you want to better understand when choosing a used engine controller is justified, how to assess its suitability, and what to pay attention to during installation and programming, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?. The article discusses practical aspects of selecting and operating used automotive electronics, which can help in making an informed purchasing decision.

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 controllers, management modules, or powertrain control systems, check out the available parts in the BMW electronic control modules and controllers category.