BMW E81 E87 LCI 116i 1.6 Petrol N43 ECU Control Kit DME 7579142 CAS3 Keys Manual

The BMW E81/E87 LCI 116i 1.6 N43 Engine Control Kit is an electronic set from the Electronic Control Units and Controllers group, designed for petrol vehicles with manual transmissions. It includes key components of the engine management and security system, allowing for a cohesive, professional replacement of the entire control system in a single service process.

Specifications and technical data

• SKU: 7579142-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7579142
• Substitutable numbers: 12147599881, 12147579142, 12147640015, 5WK93709, 61359147220, 9147220
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Kit Purpose and Configuration

The presented BMW E81 E87 LCI 116i 1.6 Petrol N43 ECU Control Kit DME CAS3 Keys Manual is dedicated to facelifted (LCI) compact BMW 1 Series models with the N43 petrol engine and a manual gearbox. The kit includes engine control and immobilizer system components, allowing them to be installed as a complete package without the need for zero-base programming of individual modules.

This solution is particularly beneficial in cases of engine control unit failure, communication problems within the DME–CAS system, or issues with key recognition. Using a complete kit allows for the restoration of proper operation of the powertrain and vehicle start system in an organized and technically consistent manner.

Function of the DME Controller and CAS3 Module

The central element of the kit is the DME engine control unit, responsible for managing the N43 engine's operation in petrol mode. It controls, among other things, fuel injection, ignition, and interaction with other vehicle systems, ensuring stable and predictable engine performance. In conjunction with the manual gearbox, it allows for precise parameter adjustment to the drivetrain's specifics.

The CAS3 module functions as an advanced authorization and security system, working with the provided keys. This creates a cohesive electronic environment where the engine control unit, comfort module, and keys are synchronized. For workshops, this means reduced risk of software conflicts and shorter vehicle startup times after repair.

Application in Petrol Vehicles with Manual Transmission

The kit is designed for vehicles powered by petrol fuel, which is significant for injection maps, ignition strategies, and interaction with engine peripherals typical for Petrol units. Simultaneously, the configuration for a manual gearbox ensures compatibility with the drivetrain's operating logic, including signals from the clutch and gear selector sensors.

This parameter matching to a specific powertrain version simplifies installation and minimizes the need for additional software modifications. For the end-user, this translates to predictable vehicle behavior after kit replacement and maintaining driving characteristics consistent with factory specifications.

Used Product Characteristics

The kit comes from a used vehicle, which in workshop practice means the possibility of economical repair while maintaining the original BMW electronic architecture. For many services, this is a sensible alternative to purchasing new modules, especially for older vehicle generations where the availability of new controllers can be limited.

Before installation, standard verification of compatibility with the specific car configuration and inspection of the vehicle's electrical system are recommended to rule out secondary damage that could affect the controller's operation. A correctly selected and installed kit allows for the restoration of engine control system and start system functionality without deep intervention in the wiring harness.

Expansion of Service Work and Related Items

If you are planning a comprehensive engine area repair or upgrade for your BMW and need other items from the same group, such as additional controllers, auxiliary modules, or engine management systems, check the available parts in the BMW Electronic Control Units and Controllers category.

When selecting used control modules, it is worth paying attention to vehicle generation compatibility, fuel type, and gearbox type. It is also good practice to familiarize yourself with the principles of safe use of second-hand parts and methods for optimizing service costs – this is described in more detail in the article on economical servicing, available at the link how to save on car service by using used parts. Additionally, for a broader perspective on the importance of original electronic modules in preserving the premium brand character, it is worth reading the post Audi and pure emotion – the role of original modules and accessories.