BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key

BMW E87 LCI E90 N43 118i 318i ECU Control Unit Kit DME 7595179 CAS3 + Key is a control set designed for the BMW powertrain with the N43 engine in 1 and 3 series models. The kit includes the DME engine control unit, the CAS3 module, and a matched key, which facilitates maintaining the consistency of the vehicle's electronics. This solution allows for a professional replacement of the control unit assembly within the Electronic control modules and controllers category, while maintaining the factory system operating logic.

Specifications and technical data

• SKU: 7595179-17
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7599881
• Substitutable numbers: 12147599881, 7599881, 12147595179, 7595179, 12147640015, 7640015, 12147621178, 7621178, 5WK93727, 61359147226, 9147226
• Category: ECUs & Computer Modules

Purpose and function of the ECU DME + CAS3 + Key kit

The presented set is dedicated to BMW 1 Series E87 LCI and 3 Series E90 vehicles with the N43 unit in 118i and 318i versions. The kit combines the DME engine controller responsible for precise management of the powertrain's operation, the CAS3 module performing authorization and immobilizer functions, and a matched key that works with this system.

This combination of elements allows for consistent handling of:

• engine starting while maintaining factory security features,
• communication within the vehicle bus with other electronic modules,
• monitoring of engine operating parameters in accordance with the maps stored in the DME.

Benefits of using a complete control kit

Using a complete kit, including the ECU DME, CAS3, and key, significantly simplifies the service process compared to replacing individual components. Electronic consistency reduces the need for deep programming and adaptation, which is particularly important in modern BMW security systems.

The main advantages of such a solution include:

• Maintaining the integrity of the immobilizer system – the CAS3 module and the key are matched to each other and to the engine controller.
• Reduction of the risk of software conflicts between controllers in the vehicle.
• Possibility of professional repair of the engine control system in case of damage to the original set.

Characteristics of the Electronic control modules and controllers category

The product belongs to the Electronic control modules and controllers group, which are components responsible for managing key vehicle functions. In the case of a BMW with an N43 engine, the DME controller works with the CAS3 module, creating an integrated system for access control and powertrain operation. A correctly selected kit of this type is essential for stable engine operation, proper communication with other modules, and maintaining security functions.

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 controllers, comfort modules, or body control units, check the available parts in the BMW Electronic control modules and controllers category.

Product condition and service application

The offered set comes from dismantling, which allows for an economical restoration of the control system's efficiency in the vehicle while maintaining the original BMW specification. This type of kit is particularly useful in situations where there has been damage to the engine controller, problems with the CAS3 module, or improper interaction with the key.

In workshop practice, the ECU DME + CAS3 + Key kit is often chosen as a service solution enabling:

• restoration of the vehicle's starting capability after an electronics failure,
• replacement of a damaged control set with components of the same specification,
• maintaining compliance with the factory BMW electronic architecture.

Substantive support and selection of parts from dismantling

When working with BMW control systems, it is worth using proven service procedures and knowledge about module integration. For users and workshops that want to better understand the principles of selecting and installing engine controllers and other electronic modules in BMW 3 and 5 series, the following article will be helpful: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using parts from dismantling?.

You will find practical tips there regarding working with modules such as the engine controller, comfort modules, or multimedia systems, which facilitates the informed selection of used OEM components and their correct integration with the vehicle's electronics.