BMW 1 Series E82 E88 125i N52N 218HP ECU Kit DME 7594483 CAS3 + Key Automatic

BMW 1 Series E82 E88 125i N52N 218HP ECU Kit DME 7594483 CAS3 + Key Automatic is a specialized module from the Electronic control modules and controllers category, designed for use with the N52N engine unit in the 125i version. It is responsible for advanced authorization, ignition, and communication functions with other vehicle controllers, ensuring consistent operation of electronic systems. This solution is dedicated to users who require precise compatibility with the electrical architecture of the BMW 1 Series E82/E88.

Specifications and technical data

• SKU: 7594483-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7594483
• Substitutable numbers: 12148613000 12147594483 5WK91136 61359147226, 8613000 7594483 9147226, 12147639564 12147624048 12147614359 12147605429, 12147629052 12147609656 12147591709, 12147583468 12147577996 12147587164, 7639564 7624048, 7614359 7605429, 7629052 7609656 7591709, 75
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the CAS module

The presented CAS module is a central component in the access and ignition management system for BMW vehicles with the 218 HP N52N engine. It works with the vehicle's wiring, data bus, and other controllers, managing the engine start process, key authorization, and communication with comfort and safety systems. This ensures that the vehicle maintains logical consistency across all functions related to body and powertrain electronics.

Compatibility and vehicle integration

The module has been designed for seamless integration with the BMW 1 Series E82/E88 platform in the 125i version, resulting in high compatibility with the factory electrical installation. The controller belongs to the Electronic control modules and controllers group, meaning its hardware and software architecture is adapted to work with other ECU units in the vehicle. The presence of dedicated interchangeable part numbers allows for precise verification of compatibility with a specific car configuration.

Compatibility with automatic transmission

The CAS module is adapted for use in vehicles equipped with an automatic transmission. This means that the ignition control logic and communication with the powertrain take into account the specifics of the automatic gearbox, including safety conditions for starting the engine and data exchange with the relevant transmission controllers. Such alignment reduces the risk of software conflicts and facilitates the correct configuration of the entire system.

Product characteristics and service application

The offered module is a BMW group product and is a used component, making it an attractive solution for repairs, diagnostics, or replacing a damaged controller in the vehicle. It is suitable for both professional service centers and workshops specializing in BMW electronics, where the ability to use parts with factory specifications while maintaining reasonable costs is essential. By retaining the original hardware architecture, the module provides a solid foundation for further configuration and adaptation in the vehicle.

Selection by part numbers and technical support

The CAS module has an assigned OEM part number and an extensive set of interchangeable numbers, which facilitates matching it to a specific BMW 125i unit. When selecting, it is recommended to use service catalogs, a VIN decoder, or consult with an automotive electronics specialist to ensure full hardware and software compatibility. In practice, this reduces the risk of communication errors between modules and speeds up the installation and coding process.

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

To better plan the controller replacement and make an informed choice when selecting a used module, it is worth reading the guide on selecting electronics by VIN and OEM numbers, hardware compatibility, and practical aspects of installation: Used automotive electronics – second-hand ECU modules and sensors.