BMW E90 E91 E92 E93 N52N ECU Basic Engine Control Unit DME 7574544 Automatic

BMW E90 E91 E92 E93 N52N ECU Basic Engine Control Unit DME is a factory electronic control module designed for use with an automatic transmission. As a component from the Electronic control modules and controllers category, it is responsible for precise management of the engine's operation, ensuring stable engine characteristics and proper communication with other vehicle systems.

Specifications and technical data

• SKU: 7574544
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7574544
• Substitutable numbers: 12148613000 12147581123 5WK90210, 8613000 7581123, 12147576297, 12147567362 12147567227 12147574540, 12147574544 12147577068 12147575057, 12147570376 12147639564 12147624048, 12147614359 12147605429 12147629052, 12147609656, 7576297 12147567362, 1214756722
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the DME controller

The presented engine controller is designed for the BMW powertrain with the N52N engine, where it acts as the central unit managing the operating parameters of the gasoline engine. The module analyzes signals from sensors, coordinates fuel injection, ignition timing, and cooperation with the automatic transmission, which translates into smooth acceleration, predictable throttle response, and stable idle operation.

Thanks to its OEM design, the controller is adapted to the electrical architecture of the BMW 3 Series E9x, which facilitates integration with the factory wiring harness, diagnostic system, and other comfort and safety modules.

Compatibility and interchangeable numbers

The module belongs to the group of original BMW controllers for which an extended list of interchangeable numbers is provided. This means that within the same hardware and software family, it can replace several earlier or later versions of DME controllers used in the same engine-transmission configurations. Such a solution facilitates the selection of parts during repairs, upgrades, and replacements following electronic failures.

It is always recommended to confirm the controller selection based on the OEM number, reference numbers, and vehicle data (VIN) to ensure full hardware and software compatibility with a specific car configuration.

Integration with automatic transmission

The presented controller is designed to work with an automatic transmission, which is crucial for the proper operation of the entire powertrain. The DME unit exchanges data with the transmission control module, coordinating gear shift timing, engine load, and response to accelerator pedal input.

In practice, this translates into:

• smoother and more predictable gear shifts,
• better cooperation with electronic stability control systems,
• consistent operation of the driving modes provided by the manufacturer.

Product characteristics and service application

As an item from the Electronic control modules and controllers category, this DME controller is intended primarily for service applications: replacing a damaged module, restoring the efficiency of the injection system, and resolving communication issues within the vehicle network. The used nature of the part allows for economical repair while maintaining the original manufacturer's specifications.

Before installation, it is recommended to verify compatibility with the vehicle and prepare for software adaptation (coding, potential matching to the immobilizer) in accordance with BMW procedures. A correctly selected and configured controller allows for restoring the full functionality of the powertrain without the need for mechanical engine intervention.

Support in selecting used electronics

If you want to deepen your knowledge about selecting and installing used control modules, how to check compatibility, and the principles of safe installation, check out our guide: Used automotive electronics – ECU modules and second-hand sensors. You will find practical tips there regarding working with components such as DME engine controllers in BMWs.

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