BMW F30 F31 320i N20 184HP ECU Control Unit Kit DME 7649131 Key FEM Manual

The DME Engine Control Unit Kit for BMW F30/F31 320i N20 184 HP is an advanced ECU Control Unit Kit designed for manual transmission versions. It includes the engine control module, authorization system components (FEM, key), and is prepared for use with the 184 HP N20 gasoline engine, making it a practical solution for engine electronics replacement or swap.

Specifications and technical data

• SKU: 7649131-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7649131
• Substitutable numbers: 7649131, 12147649131, 8601159, 12148601159, 7643979, 12147643979, 0261S08709, 0 261 S08 709, 9314237, 61359314237
• Fuel type: Petrol
• Gearbox type: Manual
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Purpose and Function of the ECU Kit

This kit belongs to the Electronic Control Modules and Units category, designed to manage the operation of the gasoline engine in the BMW 3 Series F30/F31 320i N20 184 HP. The DME control unit is responsible for precise control of fuel injection, ignition, auxiliary systems, and communication with other vehicle systems, ensuring stable engine operation under various load conditions.

The version prepared for cars with a manual transmission ensures proper cooperation between the engine and the drivetrain, which is crucial for the correct functioning of features such as torque control and driver assistance systems.

Kit Construction and Benefits of Complete Replacement

The kit includes the DME engine control unit along with authorization system components (FEM, key), significantly simplifying the adaptation process in the vehicle. Using a complete kit minimizes the risk of immobilizer synchronization issues, bus communication errors, and the need for extensive software modifications.

The main advantages of this solution include:

• component consistency within a single kit,
• simplified configuration during installation and coding,
• reduced risk of module incompatibility,
• efficient replacement of a damaged control unit in vehicles after a collision or electronics failure.

Operating Parameters and Compatibility

The DME control unit in this kit is designed for the 184 HP N20 gasoline engine, ensuring control map compatibility with the engine's factory settings. The kit is prepared for use with a manual transmission, so the control logic for torque, idle speed, and accelerator pedal response remains consistent with the factory BMW configuration.

The presence of dedicated OEM part numbers and interchangeable numbers (visible in the specifications section) allows for precise matching of the kit to the specific vehicle configuration, which is particularly important when selecting electronics for modern BMW models.

Practical Application and Installation

This ECU Control Unit Kit is suitable for both standard replacement of a damaged control unit and for more advanced tasks such as engine swaps within the N20 family. Due to the completeness of the components, it is possible to reduce programming time and lower the costs associated with matching individual modules.

Before installation, it is recommended to verify compatibility using the OEM and reference numbers, and to consult with a workshop experienced in coding BMW modules. A correctly selected and configured kit allows for the restoration of full vehicle functionality while maintaining factory engine operating parameters.

Technical Support and Additional Information

For users considering the installation of a used engine control unit and other onboard electronics modules, the Global Parts guide will be particularly useful: Used Car Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?. The article discusses selection by VIN/OEM, hardware and software compatibility issues, and practical installation tips.

If you are planning a comprehensive repair or upgrade of the engine control area in your BMW and need other parts from the same group, such as control modules, engine control units, or drive management units, check the available parts in the BMW Electronic Control Modules and Units category.