BMW E60 E90 335d 535d M57N2 286HP Engine ECU KIT DDE 7810980 CAS3 Key Automatic

BMW E60 E90 335d 535d M57N2 286HP Engine ECU KIT DDE CAS3 Key Automatic is a complete engine control kit for BMW 3 and 5 series models equipped with the 286 HP M57N2 engine and an automatic transmission. The set includes a DDE controller along with a CAS3 module and a matched key, which significantly facilitates adaptation in the vehicle. This solution is intended for workshops and users looking for a proven, used electronic set for professional drivetrain repair.

Specifications and technical data

• SKU: 7810980-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7810980
• Substitutable numbers: 13617810980, 7810980, 13617805287, 7805287, 13617809955, 7809955, 13617808289, 7808289, 13617806379, 7806379, 13617806981, 7806981, 13617804844, 7804844, 13617805586, 7805586, 0281015241, 0 281 015 241, 61359147220, 9147220
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented engine control unit kit is dedicated to BMW E60 535d and BMW E90 335d models equipped with the 286 HP M57N2 engine and an automatic transmission. The set includes components from the Electronic control modules and controllers group, which allows for a consistent replacement of key components responsible for managing engine operation and start authorization.

By combining the DDE controller with the CAS3 module and the key, it is possible to restore the complete communication path between the engine electronics and the immobilizer system, which in many cases eliminates the need for time-consuming programming from scratch.

Structure of the ECU DDE kit with CAS3 and key

The offered set consists of three main elements: the DDE engine controller, the CAS3 module, and a matched key. This configuration creates a coherent system in which:

• the DDE controller is responsible for precise control of the M57N2 diesel engine,
• the CAS3 module handles security and start authorization functions,
• the key is factory-paired with the CAS3 module, which facilitates starting the vehicle after installation.

Combining these elements into one set reduces the risk of incompatibility between individual modules and simplifies the diagnostic and configuration process in the vehicle.

Application in vehicles with automatic transmission

The offered set has been prepared for BMW cars with an automatic transmission. This means that the control logic in the DDE controller is adapted to work with the automatic transmission mechatronics, including torque management, gear shifting, and CAN bus communication.

In practice, this translates into:

• proper cooperation of the engine with the automatic transmission under typical operating conditions,
• preservation of factory gear shifting strategies and drivetrain protection,
• easier integration with the vehicle's existing electrical installation.

Benefits of using a complete used set

Choosing a used ECU DDE kit with CAS3 and key is a solution that allows you to reduce repair costs while maintaining the original BMW electronic architecture. This type of set is particularly useful in situations where the engine controller has been damaged, there are problems with the CAS3 module, or there is an incompatibility between existing system elements.

The main advantages of such a solution include:

• component consistency – the controller, CAS3 module, and key come from the same system,
• reduced scope of programming compared to installing individual, unpaired modules,
• the ability to restore full functionality of the drivetrain in vehicles with the M57N2 286 HP engine.

Professional installation and additional materials

Due to the nature of elements from the Electronic control modules and controllers group, installation in a specialized service center equipped with appropriate BMW diagnostic software is recommended. Proper installation and potential adaptation of the set in the vehicle ensure stable engine operation, correct communication with other modules, and the preservation of security functions.

If you want to better understand how to take care of electronic modules in BMW 3 and 5 series and how to safely use dismantled parts, it is worth reading the article Joy of driving for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?, which discusses practical aspects of working with used controllers and modules.

Related items from the same group

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