BMW E81 E87 LCI E90 E91 N43 118i 318i ECU Kit DME 7583225 CAS3 + Key Manual

BMW E81 E87 LCI E90 E91 N43 118i 318i ECU Kit DME CAS3 + Key Manual is a complete engine control set designed for selected BMW models with the N43 engine and manual transmission. The kit includes the DME module, CAS3 module, and a matched key, which facilitates the restoration of proper electronic system operation after a failure or when replacing the ECU. This solution allows for consistent matching of immobilizer components and engine control in one well-selected package.

Specifications and technical data

• SKU: 7583225-12
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7583225
• Substitutable numbers: 12147579144, 7579144, 12147599881, 7599881, 12147583225, 7583225, 61359147196, 9147196, 5KW93643, KZ, 12147579142, 7579142, 12147585303, 7585303, 12147580279, 7580279, 12147575665, 7575665
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application and function of the ECU DME CAS3 kit

The presented control set is intended for BMW 1 and 3 series cars with the N43 engine, in E81, E87 LCI, E90, and E91 body versions. Combining the DME controller with the CAS3 module and the key ensures data consistency in the vehicle's security system, which is crucial when replacing a damaged controller or dealing with engine starting issues. This allows for an orderly restoration of the configuration of the electronic system responsible for starting and operating the power unit.

Compatibility with manual transmission

The kit has been prepared for use with a manual transmission, which is important when selecting the appropriate controller for a specific vehicle configuration. Proper matching to the transmission type affects the correct communication between the engine controller and other modules in the vehicle, such as safety systems or driver assistance systems. For workshops and automotive electronics specialists, this means a more predictable adaptation process and a lower risk of programming issues.

Benefits of using an original BMW module

As an item from the Electronic control modules and ECUs category, this ECU DME CAS3 + key kit ensures compliance with BMW's factory electrical architecture. The original solution allows for maintaining the characteristics of the N43 engine, including throttle response, injection strategy, and cooperation with OBD diagnostic systems. For the user, this means stable, predictable operation of the power unit and the ability to correctly read parameters in professional service testers.

Condition, verification, and service application

The item comes from the category of used BMW components and is intended primarily for specialized workshops, automotive electronics specialists, and individuals consciously upgrading or repairing control systems. The kit can be used both when replacing a damaged controller and in projects related to engine swaps within compatible models. Before installation, it is recommended to perform standard diagnostic procedures and match the configuration to the specific vehicle.

Expansion of the control system and selection of other BMW modules

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 additional controllers, comfort modules, or engine management systems, check the available parts in the BMW electronic control modules and ECUs category.

Technical knowledge and working with used modules

When working with used controllers and immobilizer modules, correct coding, synchronization with other systems, and adherence to safety procedures are particularly important. For those interested in a broader context of using original electronic components in premium cars, an article describing how properly selected modules and equipment elements influence the preservation of the brand's character may be helpful – more information can be found in the material Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?. Additionally, if you are preparing your car for intensive use in changing weather conditions and want to organize a list of items requiring inspection, it is worth familiarizing yourself with practical tips regarding the inspection of used components before the low-temperature season, described in the article Winter essential: which used car parts are worth checking and replacing before the frost?.