BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE 7805286 + CAS3 + Key Manual

BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE + CAS3 + Key Manual is a specialized electronic control module designed for the powertrain of BMW 3 Series E92/E93 models with the M57N2 engine. This component from the Electronic control modules and controllers category is responsible for the precise management of the engine's operation, ensuring stable power characteristics and proper communication with other vehicle systems. Thanks to its OEM-compliant design, the module provides a solid foundation for professional repair or replacement of the factory controller.

Specifications and technical data

• SKU: 7805286-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805286
• Substitutable numbers: 13617809654, 7809654, 13617808654, 7808654, 13617804843, 7804843, 13617805585, 7805585, 13617805286, 7805286, 0281013853, 0 281 013 853, 61356943814, 6943814
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented controller is dedicated to the powertrain of the BMW 3 Series E92/E93 with the M57N2 diesel engine producing 231 HP. As the central element managing engine operation, it is responsible for controlling injection parameters, boost pressure, fuel dosage, and communication with sensors and other modules in the vehicle. Using this type of computer allows for restoring the proper operation of the engine after a failure of the original controller or when replacement is necessary as part of advanced diagnostics.

The module belongs to the Electronic control modules and controllers group, which means it is designed to operate in the demanding environment of the engine bay, with appropriate resistance to temperature, vibrations, and electrical interference. This allows it to work stably with the vehicle's factory electrical installation.

Compatibility and selection by part numbers

The engine computer has a dedicated OEM part number and a set of interchangeable numbers, which facilitates its precise identification and selection for a specific vehicle. In practice, this means it is possible to match the module both by the factory number and by reference numbers used in different model years and equipment configurations of the BMW E92/E93 330d.

Before purchasing, it is recommended to verify compatibility using the OEM number or reference numbers and to compare hardware and software markings with the currently installed controller. This approach minimizes the risk of incompatibility and speeds up the module adaptation process in the vehicle.

Integration with the powertrain and transmission

The offered controller is designed to work with vehicles equipped with a manual transmission. Proper matching to the drivetrain configuration is crucial for the correct operation of functions such as torque control, throttle response, and interaction with safety and stability control systems.

A properly selected engine computer allows for maintaining the factory performance characteristics of the M57N2 unit, which translates into predictable performance, correct operation across the entire rev range, and stable functioning of driver assistance systems. This is particularly important for cars used intensively or those with mechanical modifications, where correct communication between modules has a direct impact on component durability.

Condition, installation, and service application

The module comes from the secondary market, making it an attractive cost-effective solution while maintaining the manufacturer's original specifications. In practice, this is a good solution for workshops specializing in the BMW brand and for users who want to restore full powertrain functionality without the need to invest in a new controller.

During installation, it is recommended to perform a full diagnostic, potential software adjustment (coding, adaptation, synchronization with the immobilizer), and verification of the electrical installation. A correctly performed installation process allows for stable and repeatable operation of the controller over a long service life.

Technical support and selection of used electronics

In the case of ECU modules, it is particularly important to take an informed approach to part selection, hardware and software compatibility, and installation procedures. To better understand the specifics of used electronics and avoid common mistakes, it is worth reading the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. The article discusses, among other things, selection by VIN/OEM, compatibility issues, and practical application examples.

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