BMW F10 F11 525d N47S1 218HP Engine Unit Module 8582555 CAS4 Keys Automatic

BMW F10 F11 525d N47S1 218HP Engine Unit Module CAS4 Keys Automatic is a complete electronic unit designed for the powertrain of 5 Series models, including the engine control unit (ECU), CAS4 module, and a set of keys. The set is matched to versions with an automatic transmission, which facilitates integration with the factory installation and ensures consistent operation of all systems. It is a practical solution for workshops and users looking for a proven, used control module with factory specifications.

Specifications and technical data

• SKU: 8582555-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8582555
• Substitutable numbers: 8582555, 0281031305, 0 281 031 305, 61359359013, 9359013
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Characteristics of the engine control unit set with CAS4

The offered set belongs to the Electronic control modules and ECUs category, meaning it is responsible for precise management of the powertrain and communication with the immobilizer system. Combining the engine control unit with the CAS4 module and keys allows for data consistency within the vehicle, which is particularly important when replacing electronics in modern designs.

The complete configuration with the CAS4 module and keys reduces the need for deep programming from scratch, which in many cases shortens repair time and facilitates adaptation in the vehicle. For workshops specializing in the BMW brand, this is a convenient base for further configuration for a specific vehicle.

Purpose and application in the BMW 5 Series

The presented module is dedicated to the powertrain with the N47S1 218HP engine in BMW 5 Series F10/F11 models, working with an automatic transmission. This ensures compatibility with gear shifting logic, safety systems, and comfort functions that communicate with the engine control unit.

In practice, such a set is used for:

• replacing a damaged engine control unit after an electronics failure,
• post-accident repairs where wiring or modules have been damaged,
• resolving issues with the immobilizer and key authorization in the vehicle.

By maintaining completeness (ECU + CAS4 + keys), you can reduce the risk of conflicts between modules and speed up the process of restoring full vehicle functionality.

Benefits of using a used control module

Choosing a used engine control unit set with a CAS4 module is often a cost-effective solution compared to purchasing new electronics. It allows for a significant reduction in repair costs while maintaining the factory system architecture. For many users and service centers, this is a reasonable compromise between price and functionality.

The main advantages of this solution include:

• maintaining the original operating logic of the powertrain and automatic transmission,
• the possibility of further configuration and coding according to the equipment of a specific vehicle,
• easier integration with the existing vehicle electrical installation.

Before installation, it is recommended that the installation and any necessary coding be performed by a workshop with experience in BMW electronics, which minimizes the risk of communication errors between modules.

Integration with vehicle electronics and automatic transmission

The module is prepared to work with an automatic transmission, which is crucial for the proper operation of functions such as gear shifting, traction control, or driver assistance systems. The engine control unit communicates with other units in the vehicle, so it is important to maintain compatibility of the generation and type of equipment used.

A properly selected ECU + CAS4 + keys set allows you to:

• reduce the number of diagnostic errors related to module mismatch,
• maintain stable engine operation across the full load range,
• ensure the correct operation of start/stop functions and security systems.

Expert support and additional information

If you want to better understand when choosing a used engine control unit or comfort module is justified, how to assess their condition, and what to pay attention to during installation, check out the practical tips in the article The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?. It is a valuable source of knowledge for both users and workshops specializing in automotive electronics.

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 control units, powertrain management modules, or accessory control units, check out the available parts in the BMW electronic control modules and ECUs category.