BMW F20 F30 F32 LCI 120i 320i 420i Petrol B48 184HP Engine ECU Unit DME 9894912

BMW F20 F30 F32 LCI 120i 320i 420i Petrol B48 184HP Engine ECU Unit DME is a factory-original engine control unit designed for modern BMW petrol engines with automatic transmissions. It belongs to the Electronic control modules and controllers category, ensuring precise management of the B48 184HP engine. This used DME module is a sensible service solution, allowing for the restoration of full powertrain functionality while maintaining compatibility with the vehicle's factory architecture.

Specifications and technical data

• SKU: 9894912-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9894912
• Substitutable numbers: 9894912, 12149894912, 0261S22455, 0 261 S22 455
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the DME controller

The presented engine controller is dedicated to BMW 1, 3, and 4 Series F-generation models with the LCI facelift, equipped with the B48 184HP petrol engine and an automatic transmission. As the central element for managing engine operation, the DME is responsible for coordinating key powertrain parameters, such as fuel injection, ignition timing, and interaction with auxiliary systems.

Thanks to its factory design, the module works with the vehicle's original electrical installation, which promotes engine stability and proper communication with the car's other electronic systems.

Benefits of using an original BMW module

Using an original controller from the Electronic control modules and controllers category helps maintain software and hardware consistency in the vehicle. This is particularly important in modern BMW designs, where the engine, automatic transmission, and safety systems are tightly integrated.

• preservation of factory B48 engine control logic,
• proper cooperation with the automatic transmission,
• compatibility with the vehicle's communication bus,
• possibility to use existing wiring and connectors without modifications.

For workshops and users, this means a more predictable repair process and reduced risk of communication issues between modules.

Application in vehicles with petrol engines and automatic transmissions

The controller has been designed to work with a petrol engine, which translates into appropriately selected injection and ignition maps, as well as support for specific sensors and actuators typical of petrol-powered units. At the same time, the module is adapted for integration with an automatic transmission, enabling smooth torque management and optimized gear shifting.

Such a combination is particularly important in daily operation – from starting, through city driving, to dynamic acceleration on the highway, where the controller coordinates engine response with transmission operation.

A professional choice for engine electronics repair

Choosing a used DME controller for a BMW is often a cost-effective alternative to purchasing a new module, especially when following proper selection and programming procedures. A correctly chosen component allows for the restoration of powertrain efficiency, reducing repair costs while maintaining the vehicle's factory electronic architecture.

To better understand when it is worth opting for a used engine controller and how to safely carry out such a repair, check out our guide: A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Expanding repairs in the area of BMW engine control

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