BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME 7575665 CAS3 + Key

BMW E87 LCI E90 E91 120i 320i Petrol N43 170HP ECU KIT DME CAS3 + Key is an original electronic control unit designed for N43 petrol engines in popular BMW 1 and 3 series models. The ECU KIT DME ensures precise management of the powertrain, supporting stable operation, correct fuel delivery, and efficient communication with other vehicle systems. This is a solution for users who expect factory compatibility and want to restore full functionality to the engine control system.

Specifications and technical data

• SKU: 7575665-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7575665
• Substitutable numbers: 7575665, 12147575665, 7599881, 12147599881, 7583225, 12147583225, 7507228, 12147507228, 7580279, 12147580279, 7593667, 12147593667, 7585654, 12147585654, 7575668, 12147575668, 7579144, 12147579144, 7585304, 5WK93629, 61356943834, 6943834
• Fuel type: Petrol
• Category: ECUs & Computer Modules

Purpose and function of the DME controller

The presented engine computer belongs to the Electronic control modules and controllers category and is responsible for comprehensive management of the N43 petrol unit in BMW 120i and 320i models. The module oversees, among other things, the combustion process, response to sensor signals, cooperation with the ignition system, and communication with other controllers in the vehicle, which translates into stable engine operation and proper response to load.

Thanks to its factory architecture, the controller is optimized for the characteristics of the N43 engine, which makes it easier to maintain the appropriate operating parameters of the powertrain under various operating conditions. Using an original module reduces the risk of software compatibility issues and communication problems within the vehicle network.

Benefits of using an original ECU KIT DME

Using the ECU KIT DME in BMW E87 LCI, E90, and E91 series cars with a petrol engine provides a number of practical benefits:

• factory integration with the vehicle's electrical installation and communication bus,
• proper matching to the characteristics of the N43 engine,
• consistent cooperation with other control modules in the car,
• the ability to restore proper operation of the control system after a failure of the previous computer.

Choosing an original module from this group allows you to maintain operating parameters close to factory settings, which is particularly important for diagnostics, adaptations, and subsequent service maintenance.

Technical characteristics and compatibility

The engine computer in this configuration is intended for units powered by petrol, which is crucial when selecting a controller for a specific vehicle version. The module belongs to the original BMW product line, which facilitates hardware and software matching within a given engine generation.

In practice, when selecting a controller, it is worth paying attention to compatibility with the specific engine version and vehicle year, as well as proper matching within the same family of modules. This makes it possible to maintain correct communication with safety, comfort, and powertrain systems.

Product condition and service application

The offered module comes from the secondary market, which is an attractive solution for users looking for an economical alternative to new controllers while maintaining the original specification. Such components are often used in repairs following engine electronics failure, communication problems in the vehicle network, or when it is necessary to replace a damaged computer.

Due to the nature of control electronics, it is recommended to perform professional vehicle diagnostics before installation and verify the requirements regarding potential programming, adaptation, or matching to the immobilizer in a specific BMW unit.

Used ECU selection and technical support

When choosing a used engine controller, it is crucial to match it correctly in terms of hardware and software versions, as well as compatibility with vehicle equipment. In practice, vehicle identification data and reference numbers are often used to select a module from the same family.

If you want to learn more about the safe selection of used controllers and sensors, how to verify compatibility, and the practical aspects of installation, check out the Global Parts guide: Used automotive electronics – ECU modules and second-hand sensors.

Related BMW Electronic control modules and controllers

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 transmission controllers, check out the available parts in the BMW Electronic control modules and controllers category.