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

BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE + CAS3 + Key Automatic is an advanced electronic set designed for vehicles with an automatic transmission. The kit ensures consistent operation of the powertrain and the immobilizer system, which facilitates professional engine control replacement in BMW 3 Series E92 and E93 cars with the M57N2 unit.

Specifications and technical data

• SKU: 7805286-3
• 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, 61356943830, 6943830
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE + CAS3 + Key Automatic

The presented BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE + CAS3 + Key Automatic is dedicated to BMW 3 Series E92/E93 330d models with the 231 HP M57N2 engine, equipped with an automatic transmission. The set includes an electronic engine control module, a Car Access System module (CAS3), and a matched key, which allows for maintaining coding compatibility between all system components.

A set configured in this way enables efficient engine control replacement in the event of damage to the original ECU, immobilizer issues, or the need to swap the powertrain between vehicles with similar configurations.

Benefits of using a complete control kit

Using the complete BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE + CAS3 + Key Automatic brings a number of practical technical benefits:

• maintaining coding consistency between the engine ECU and the CAS3 module,
• reducing the risk of immobilizer and vehicle starting problems,
• facilitating workshop work during the adaptation of a used ECU,
• matching the specifics of the 231 HP M57N2 engine and automatic transmission.

Thanks to this solution, it is possible to restore the full functionality of the powertrain in a controlled manner, while maintaining the diesel unit's performance characteristics typical for the BMW 330d.

Application in vehicles with an automatic transmission

The presented kit is intended for cars equipped with an automatic transmission. This is significant both for the engine control software and for communication with other modules in the vehicle (e.g., transmission control, comfort, and safety systems).

Selecting a kit compatible with the transmission type allows for avoiding discrepancies in operating parameters, bus communication errors, and the need for deep software modifications. This is particularly important in the case of modern BMW electronic systems, where cooperation between modules is tightly integrated.

Category characteristics: Electronic control modules and ECUs

The product belongs to the Electronic control modules and ECUs group, which are components responsible for managing key vehicle functions. In the case of the BMW 330d E92/E93, the BMW E92 E93 330d M57N2 231HP Engine ECU Kit DDE + CAS3 + Key Automatic is responsible for:

• controlling the diesel engine operation,
• starting authorization and immobilizer support,
• communication with other modules in the vehicle via the data bus.

Selecting the correct control module in this category has a direct impact on the stability of the powertrain, the correct operation of safety systems, and the comfort of using the car.

Product condition and service application

The offered set is used, which makes it an attractive cost-effective solution while maintaining the original BMW specification. This type of kit is particularly useful in:

• post-accident repairs when the vehicle's electronics have been damaged,
• cases of engine ECU or CAS3 module failure,
• projects involving a powertrain swap between vehicles with similar configurations.

For workshops specializing in the BMW brand, such a kit provides a practical basis for restoring full vehicle functionality while maintaining the factory logic of the systems.

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

For a broader perspective on the role of original electronic modules in maintaining the character of a premium brand and the impact of used components on driving quality, it is worth reading the article Audi and pure emotion – how used modules and components help maintain the brand's DNA, which discusses these issues using the example of another premium manufacturer.