BMW F30 F31 320i Petrol N20 184HP Engine ECU Kit DME 8617551 FEM Key Automatic

BMW F30 F31 320i Petrol N20 184HP Engine ECU Kit DME FEM Key is an advanced electronic set designed for the 184 HP petrol engine with an automatic transmission. Thanks to the factory BMW architecture and the preserved consistency of the components, this set provides a solid foundation for professional repair of the engine control system and vehicle electronics.

Specifications and technical data

• SKU: 8617551-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8617551
• Substitutable numbers: 8664661, 12148664661, 8617551, 12148617551, 8626172, 12148626172, 8624820, 12148624820, 8639595, 12148639595, 8610635, 12148610635, 8631725, 12148631725, 0261S09709, 0 261 S09 709, 9324779, 61359324779
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the set

The BMW F30 F31 320i Petrol N20 184HP Engine ECU Kit DME FEM Key is dedicated to BMW 3 Series F30/F31 320i models with the N20 petrol engine and automatic transmission. The set includes key components responsible for controlling the powertrain, communicating with the immobilizer, and managing comfort and safety functions, which allows for a consistent restoration of the vehicle's original configuration.

Combining the engine control unit with the FEM body module and a matched key allows for the integrity of the security system to be maintained, reducing the need for deep software intervention and shortening the time required to restore the car's full functionality.

Benefits of using the complete set

Using a complete control set in a BMW F30/F31 320i brings a number of practical benefits in the service process:

• consistency of electronic components within a single vehicle,
• easier adaptation in a vehicle with an N20 engine and automatic transmission,
• preservation of the factory immobilizer system logic,
• reduction of the risk of conflicts between control modules.

For workshops specializing in the BMW brand, such a set is a convenient solution when replacing a damaged engine ECU or during post-collision repairs where the reconstruction of interconnected modules is necessary.

Technical characteristics in the context of engine and transmission

The presented set has been prepared for the 184 HP N20 petrol engine, working in conjunction with an automatic transmission. This means that the control maps, operating logic, and bus communication are adapted to the specifics of this powertrain configuration, including interaction with the transmission module, traction control systems, and active safety systems.

As a result, the set is particularly useful in situations where it is required to restore the original engine and transmission operating parameters without the need to build a configuration from scratch. For the end user, this translates into predictable vehicle behavior and compliance with the manufacturer's factory specifications.

Condition, verification, and service application

The components included in the set are from disassembly and are intended for reinstallation by a professional service or an experienced automotive electrician. Due to the nature of BMW electronic systems, installation with appropriate diagnostics and adaptation is recommended to ensure proper communication with other modules in the vehicle.

In practice, the set will work well both for routine repairs and for more complex projects, such as engine replacement within the same engine family or vehicle reconstruction after electrical damage.

Integration with other BMW modules and service knowledge development

Modern F-series BMWs use an extensive network of control modules, which is why working with such components requires up-to-date knowledge and familiarity with the vehicle's electronic architecture. To compare the approach of premium manufacturers to electronics and original parts, it is worth reading the material describing the Audi brand – you can find it in the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?, which shows how important it is to use properly selected components in premium cars.

If you are planning a comprehensive repair or upgrade of the engine electronics area in your BMW and need other elements from the same group, such as controllers, body modules, or comfort system control units, check the available parts in the BMW electronic control modules and controllers category.