BMW 3 5 Series E60 E90 DME Petrol N53 Engine Control Unit ECU Automatic 7612455

BMW 3 5 Series E60 E90 DME Petrol N53 Engine Control Unit ECU Automatic is a factory module from the Computers and controllers group, designed for N53 units. This component is responsible for precise engine management, fuel injection, and cooperation with the automatic transmission, ensuring stable and predictable driving characteristics.

Specifications and technical data

• SKU: 7612455
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7612455
• Substitutable numbers: 12147616431, 7616431, 12147612455, 7612455, DME MSD81, 5WK93750
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Control Modules

Purpose and function of the controller

The presented DME controller is dedicated to N53 petrol engines in BMW 3 and 5 Series models equipped with an automatic transmission. As the central control unit for the powertrain, it manages, among other things, fuel dosing, ignition, and cooperation with other vehicle modules, which translates into consistent operation of the entire powertrain.

The module belongs to the Computers and controllers group, making it suitable for integration with BMW's factory electronic architecture, without the need for interference with wiring harnesses or additional hardware adapters.

Compatibility and replacement numbers

The controller has been designed as an OEM component for specific BMW configurations with a petrol engine and automatic transmission. The presence of dedicated interchangeable numbers allows the module to be matched to a specific equipment version and vehicle year, which facilitates work for workshops and professionals involved in diagnostics.

Thanks to the assigned reference numbers, the controller can be matched to the existing vehicle installation, minimizing the risk of hardware incompatibility and simplifying the configuration process during programming.

Technical characteristics and vehicle integration

The DME module works with the petrol engine, controlling operating parameters in real-time. It has been prepared to cooperate with the automatic transmission, which is important for gear shift smoothness, throttle response, and idle stability in various driving modes.

In practice, this means that the controller:

• coordinates engine operation with the automatic transmission control logic,
• supports the maintenance of appropriate combustion parameters,
• enables correct communication with other modules in the vehicle network.

Thanks to its factory design, the module is prepared for integration with original BMW software, which allows for its adaptation and coding in accordance with the requirements of a specific vehicle.

Condition, origin, and practical application

The offered controller comes from a BMW vehicle and is a used component, which is a cost-effective solution while maintaining factory specifications. Such modules are frequently chosen by workshops specializing in the BMW brand when it is necessary to replace a damaged ECU without abandoning the original electronic architecture.

Before installation, it is recommended to perform standard diagnostic procedures and prepare for programming and potential synchronization with the immobilizer and other vehicle systems, in accordance with service practices for DME controllers.

Why consider a used engine controller

Choosing a used engine controller is often a reasonable compromise between cost and maintaining original OEM quality. With proper number matching and professional programming, you can achieve stable engine performance without the need to invest in a new module from an authorized dealership.

If you want to better understand when used electronics are a good solution and how to safely select an ECU for your car, check out our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

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 additional control modules, ECU units, or auxiliary controllers, check out the available parts in the BMW Computers and controllers category.