BMW F10 F11 F20 F30 328i 528i N20 245HP Engine Control ECU DME 7643312 Automatic

BMW F10 F11 F20 F30 328i 528i N20 245HP Engine Control ECU DME designed for F10, F11, F20, and F30 series models with an automatic transmission is a key component of the powertrain management system. This electronic control unit (ECU/DME) is responsible for precise fuel metering, ignition control, and coordination with the automatic transmission, ensuring stable and predictable performance of the gasoline engine.

Specifications and technical data

• SKU: 7643312
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7643312
• Substitutable numbers: 7643312, 12147643312, 8606777, 12148606777, 7644747, 12147644747, 7649122, 12147649122, 7637481, 12147637481, 7631047, 12147631047, 7646763, 12147646763, 7638887, 12147638887, 7635714, 12147635714, 7626110, 12147626110, 8606306, 12148606306, 0261S08322, 0 261 S08 322
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented engine control unit is designed for the four-cylinder N20 245HP engine, used in popular BMW 3 and 5 series F-generation gasoline models. The module's design is adapted for use with an automatic transmission, which is essential for proper communication with the mechatronics, traction control system, and vehicle safety systems.

The ECU/DME belongs to the Electronic control modules and controllers group, allowing it to integrate with the vehicle's CAN bus and communicate with other onboard controllers. Proper selection based on the OEM number and interchangeable part numbers allows the module to be matched to the specific equipment configuration and software of a given BMW vehicle.

Function and role in the powertrain

The engine control unit serves as the central processing unit for the powertrain. Based on sensor signals, it analyzes the operating parameters of the gasoline engine in real-time and:

• controls fuel dosage and injection timing,
• manages ignition timing,
• coordinates operation with the automatic transmission,
• monitors engine protection systems (emergency strategies, limp mode),
• communicates with other electronic modules in the vehicle.

As a result, a correctly selected and functional control unit allows for stable performance, smooth gear shifts, and predictable throttle response, which directly translates into driving comfort and operational safety.

Benefits of using a pre-owned ECU/DME

Choosing a pre-owned module from the Electronic control modules and controllers group is a solution that significantly reduces repair costs compared to a brand-new component, while maintaining the original hardware specifications. A control unit sourced from a BMW dismantling process retains its factory hardware architecture, which facilitates the adaptation and programming process for a specific vehicle.

Before installation, it is recommended to verify compatibility using the OEM number, interchangeable part numbers, and the engine/transmission configuration, followed by appropriate programming or data cloning procedures performed by a specialized service. This approach provides a functional and cost-effective repair solution without interfering with the mechanical installation of the powertrain.

Professional selection and installation – technical support

To correctly select an engine control unit for a specific BMW, it is advisable to use identification based on the VIN and part numbers, as well as pay attention to the software version and fuel type. A detailed discussion of selection principles, hardware and software compatibility, and practical installation examples can be found in the Global Parts guide: Used automotive electronics on board – why choose second-hand ECU modules and sensors?.

Additional information on the operation and repair of engine control units in BMW 3 and 5 series models, as well as practical tips on using dismantled parts, is also provided in the article: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?.

Expanding repairs within BMW 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 engine controllers, DME modules, or other electronic control units, check out the available parts in the BMW electronic control modules and controllers category.