BMW F20 F21 F30 F31 LCI 120d 320d B47 190HP Engine ECU Kit DDE 8474730 Automatic

BMW F20 F21 F30 F31 LCI 120d 320d B47 190HP Engine ECU Kit DDE Automatic is a complete diesel engine control kit designed for facelifted BMW 1 and 3 Series models. The kit includes an electronic control module from the Electronic control modules and controllers category, prepared for use with the 190 HP B47 unit and an automatic transmission. This is a solution for users who need a proven, used ECU kit for professional repair or replacement of the factory controller.

Specifications and technical data

• SKU: 8474730-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8574752
• Substitutable numbers: 8574752, 13618574752, 8474730, 13618474730, 0281035188, 0 281 035 188, 8709212, 61358709212
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented ECU kit is designed to work with the 190 HP B47 engine in facelifted (LCI) BMW F20, F21, F30, and F31 models. The controller's design is factory-adapted for operation with a diesel engine, ensuring correct injection maps, boost pressure control, and support for exhaust gas treatment systems typical for this unit.

An important element is full integration with the automatic transmission, thanks to which the ECU kit communicates with the transmission control module, enabling proper communication within the vehicle's network and maintaining factory gear-shifting strategies. This is particularly important when replacing the controller in cars where drivetrain electronics consistency is key.

ECU kit characteristics

As an item from the Electronic control modules and controllers category, the ECU kit is responsible for comprehensive engine management, including:

• controlling fuel dosage and injection pressure in the diesel system,
• coordinating the turbocharger and boost system operation,
• supporting exhaust emission reduction systems,
• communicating with other vehicle controllers via data buses.

This type of solution allows for maintaining the factory operating parameters of the B47 unit, which translates into stable engine performance, predictable throttle response, and proper operation of driver assistance systems.

Benefits of using a used ECU kit

Choosing a used ECU kit for the BMW F-series is a reasonable way to reduce repair costs while maintaining the vehicle's original electronic architecture. Using a controller from the same model family facilitates the adaptation and coding process in the vehicle and reduces the risk of communication issues between modules.

A used control kit is particularly attractive in situations where the factory ECU has been damaged, and the priority is to quickly restore full drivetrain functionality while maintaining compliance with the original configuration. This allows for effectively restoring engine operating parameters and cooperation with the automatic transmission without the need for an expensive purchase of a new module.

Professional application and electronics selection

Due to the complexity of control systems in modern diesel units, the installation of such a kit should be entrusted to a workshop with experience in working with BMW electronics. Proper configuration, coding, and potential synchronization with the immobilizer are crucial for trouble-free vehicle startup and stable operation.

To better understand when choosing a used engine controller is cost-effective and how to safely select the right module for your car, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the control system in BMW

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