BMW 1 3 Series E81 E87 E90 LCI 118d 318d N47 Diesel ECU Kit DDE CAS3 Key 7823422

BMW E87 E90 LCI N47 Engine Control Module 7823422 is a specialized controller designed for BMW N47 diesel engines, used in facelifted compact and mid-size 1 and 3 Series models. As part of the Electronic Control Units and Controllers category, it is responsible for precise management of the diesel engine's operation, ensuring stable power characteristics and proper interaction with other vehicle systems. This is a solution for users seeking a proven, factory-original controller for professional powertrain repair.

Specifications and technical data

• SKU: 7823422-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7823422
• Substitutable numbers: 13618506375, 8506375, 13618518167, 8518167, 13618510592 13618506433 13617823423 13617823422, 8510592 8506433 7823423 7823422, 13618506434 13618512499 13617812540, 8506434 8512499 7812540, 13618577664, 8577664, 61359147226, 9147226, 0281014573
• Fuel type: Diesel
• Category: ECUs & Computer Modules

Purpose and Function of the N47 Engine Controller

The presented module is the engine control unit for diesel engines in BMW vehicles equipped with the N47 unit, used in models such as the E87 and E90 LCI. Its task is to continuously analyze signals from sensors, control fuel injection quantity, injection timing, and cooperate with systems responsible for exhaust emissions and engine operational safety. This ensures the diesel injection system maintains correct parameters, and the accelerator pedal response remains predictable and repeatable.

Benefits of Using an Original BMW Module

Using a factory-original controller from the Electronic Control Units and Controllers category ensures compatibility with the vehicle's software and electrical architecture. An original engine control unit is designed for a specific platform, which facilitates adaptation during programming and minimizes the risk of communication issues within the vehicle's bus system. This is particularly important in modern diesel engines where the controller interacts with numerous comfort, safety, and diagnostic modules.

The module designed for Diesel engines provides appropriate control maps for diesel characteristics, including turbocharger pressure management, turbocharger operation, and advanced injection strategies. In practice, this translates to stable idle operation, correct cold starts, and predictable behavior under load.

Application in BMW Service and Diagnostics

This engine control unit is particularly useful in situations where the existing controller has been damaged due to electrical overload, water ingress, or installation errors. In workshops specializing in the BMW brand, it is used as a base for further programming, data cloning, or adaptation to a specific vehicle. This allows for the restoration of full powertrain functionality without the need for costly replacement of the entire wiring harness or additional modules.

In service practice, the availability of interchangeable part numbers is also important, facilitating the selection of the correct controller for a specific car configuration. This module meets these requirements, allowing it to be adapted to various equipment variants within the same engine family.

Condition, Verification, and Preparation for Installation

The offered controller is a used part from a dismantled vehicle, enabling economical vehicle repair while maintaining factory-quality craftsmanship. Before being offered for sale, modules of this type are routinely inspected for mechanical damage and prepared for further programming work by the workshop. Due to the specific nature of automotive electronics, installation and coding by a service center experienced with N47 units are recommended.

It is important to remember that each engine control unit requires adaptation to a specific car – both in terms of software and immobilizer configuration. Therefore, the module is treated as a solid base for further adaptation, not as a plug-and-play component without any service procedures.

Integration with Other BMW Modules – Knowledge for the Demanding

If you want to better understand how the engine control unit interacts with other controllers in your BMW, including the multimedia system and body modules, it is worth consulting specialized materials. Practical tips for repairing control units, FRM modules, and the iDrive system can be found in the article: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models.

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