BMW E87 E90 120i 320i N46 ECU Engine Control Module Kit DME 7552176 Automatic

The BMW E87 E90 120i 320i N46 ECU Engine Control Module Kit DME 7552176 Automatic is an original engine control module designed for N46 units in BMW 1 and 3 Series models with automatic transmission. This item from the Electronic Control Modules and Controllers group is responsible for precise engine management, ensuring stable power characteristics and proper cooperation with auxiliary equipment. Thanks to its factory design, the ECU DME is fully adapted to BMW's electrical architecture, facilitating integration with other vehicle systems.

Specifications and technical data

• SKU: 7552176-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7552176
• Substitutable numbers: 12147557291, 7557291, 12147552177, 7552177, 12147552176, 7552176, 12147550535, 7550535, 12147550534, 7550534, 12147545043, 7545043, 12147545042, 7545042, 12147531846, 7531846, 0261208582, 0 261 208 582, 61356964051, 6964051, 6941986, 61356941986
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and Function of the N46 Engine Controller

The presented ECU DME kit is designed to work with the N46 engine in BMW 120i and 320i models. As the central control unit, the module analyzes signals from sensors, selects fuel dosage, ignition timing, and throttle control system parameters to ensure the engine operates in a stable, predictable manner. Appropriate control maps stored in the ECU's memory maintain proper performance, smooth operation, and compliance with the manufacturer's original specifications.

Compatibility with Automatic Transmission

The version designed for automatic transmissions is configured to cooperate with the mechatronics and gear shifting logic. The engine controller transmits information about load, rotational speed, and torque demand to the automatic transmission system, enabling smooth, predictable gear changes. This ensures consistent operation of the entire drivetrain, and the throttle response remains consistent with the characteristics intended for BMW 120i and 320i models with the N46 engine.

Advantages of Using an Original BMW Module

Using an original control module from the Electronic Control Modules and Controllers group ensures:

• factory fit for the vehicle's electrical system and communication bus,
• software consistency with other vehicle controllers,
• stable engine operating parameters across the full load range,
• proper diagnostics using original BMW service tools.

This makes the module particularly useful for professional engine control system repairs where maintaining original operating logic and full compatibility with vehicle equipment is required.

Professional Installation and Configuration

Due to the nature of this component, the ECU DME installation should be performed by a workshop experienced in BMW electronics and with access to appropriate diagnostic software. After installation, adaptation and coding procedures are necessary to correctly assign the controller to the specific vehicle and ensure it communicates with the immobilizer and other modules. This approach minimizes the risk of communication errors and ensures the correct functioning of all engine-related functions.

Expanding Knowledge and Selecting Used Controllers

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional controllers, engine management modules, or auxiliary systems, check the available parts in the BMW Electronic Control Modules and Controllers category.

To better understand how original electronic modules influence the character of a premium car and why used OEM components are often a beneficial choice, it is worth reading the blog article Audi and Pure Emotion. How Used Parts Help Maintain Brand DNA?, which discusses the importance of factory components in preserving driving characteristics and the quality of electronic system operation.