BMW 3 5 Series E60 LCI E90 325d 525d M57N2 197HP ECU Kit DME CAS3 + Key 7806987

BMW 3 5 Series E60 LCI E90 325d 525d M57N2 197HP ECU Kit DME CAS3 + Key is a complete engine control set from the Electronic control modules and controllers group, designed for selected 3 and 5 Series models with the M57N2 197HP engine unit. The set includes the DME controller, CAS3 module, and a matched key, providing a coherent solution for professional repair or replacement of the engine control system in BMW vehicles.

Specifications and technical data

• SKU: 7806987-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7806987
• Substitutable numbers: 13617809941, 7809941, 13618509034, 8509034, 13617811151 13617806380 13617806987 13617806152, 7811151 7806380 7806987 7806152, 13618506951 13617805288 13617808314 13617804845, 8506951 7805288 7808314 7804845
• Category: ECUs & Computer Modules

Application of the BMW 3 5 Series E60 LCI E90 325d 525d M57N2 197HP ECU Kit DME CAS3 + Key

The presented set is intended for BMW 3 Series E90 and 5 Series E60 LCI models with the 197HP M57N2 engine. Combining the DME engine controller with the CAS3 module and key allows for maintaining the consistency of the security system and engine operation logic, which is particularly important when replacing the control set in vehicles equipped with advanced electronics.

A set configured in this way enables specialized workshops and advanced users to carry out engine control system repairs in an organized manner, while maintaining the integrity of the start system, key authorization, and communication with other modules in the vehicle.

Structure and function of the set components

The set includes the DME engine controller responsible for processing signals from sensors, controlling injection, boost, and other operating parameters of the M57N2 unit. The CAS3 module acts as the central element of the vehicle access and starting system, cooperating with the key and other comfort and security modules.

Combining these components into one set:

• facilitates matching the electronics to a specific BMW 3 or 5 Series configuration,
• minimizes the risk of incompatibility between the engine controller and the CAS module,
• allows for more efficient adaptation and programming in the vehicle.

Benefits of using an original BMW module

The original BMW 3 5 Series E60 LCI E90 325d 525d M57N2 197HP ECU Kit DME CAS3 + Key ensures compliance with the factory electrical architecture and bus communication in 3 and 5 Series vehicles. This makes it possible to maintain the engine operating parameters, starting stability, and cooperation with other controllers in the car as intended by the manufacturer.

The main advantages of such a solution include:

• factory compatibility with the M57N2 unit and BMW electrical installation,
• consistency of the immobilizer system and key authorization,
• possibility of using existing service and diagnostic procedures.

Characteristics of the used product

The presented set comes from the secondary market and has the status of a used electronic module. This means it is a dismantled part that can be an economical alternative to new components while maintaining the original manufacturer's specifications. This type of solution is often chosen by workshops specializing in the BMW brand when combining OEM quality with repair cost control is crucial.

Substantive support and additional information

If you want to better understand how to properly approach the repair of an engine controller, CAS module, or iDrive system in the 3 and 5 Series, it is worth reading the guide describing practical aspects of working with BMW electronics and dismantled parts: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models.

For users who are analyzing the cost-effectiveness of using secondary market components, the material discussing the impact of used parts on the total service cost may also be helpful: how to save on car service using used OEM parts.

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