BMW E81 E87 LCI 116i E90 316i 115HP N45N Engine Unit ECU DME 7585249 Automatic

BMW E81 E87 LCI 116i E90 316i 115HP N45N Engine Unit ECU DME is an original electronic control module designed for BMW petrol units. The component comes from the Electronic control modules and controllers group and is designed to work with factory vehicle systems, ensuring stable engine operation and proper handling of the automatic transmission.

Specifications and technical data

• SKU: 7585249
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7585249
• Substitutable numbers: 7585249, 12147585249, 7591162, 12147591162, 7591163, 12147591163, 7567321, 12147567321, 7585435, 12147585435, 7581848, 12147581848, 7582242, 12147582242, 7581610, 12147581610, 7557951, 12147557951, 7581609, 12147581609, 0261S04290, 0 261 S04 290
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented DME controller is responsible for comprehensive management of the N45N petrol engine in BMW 1 and 3 series models, including fuel delivery, ignition, and cooperation with the automatic transmission system. As an element from the Electronic control modules and controllers category, it integrates signals from sensors and sends precise commands to actuators, which translates into predictable engine performance characteristics.

The module is dedicated to vehicles with a petrol engine, which allows for maintaining the correct control maps and operating parameters, consistent with the manufacturer's factory specifications. As a result, the drivetrain maintains proper operating culture and consistency with the rest of the vehicle's electronics.

Compatibility and replacement numbers

The controller was designed by BMW for use in specific engine and transmission configurations, and its design allows for the use of different replacement numbers within the same module family. The presence of reference numbers facilitates the selection of the appropriate unit for a given car, especially when matching by OEM number or interchangeable numbers.

Before purchasing, it is recommended to verify the module's compatibility with the specific vehicle, preferably based on the VIN number and by comparing the markings with the currently installed controller. This approach minimizes the risk of hardware or software incompatibility and allows for efficient installation and potential adaptation.

Operating characteristics with a petrol engine and automatic transmission

As a controller designed for a petrol unit, the module supports specific injection and ignition strategies adapted to the characteristics of the N45N engine. The use of a dedicated ECU allows for maintaining proper dynamics, operating culture, and compliance with emission standards provided for a given model.

Cooperation with an automatic transmission means that the controller takes into account signals from the gearbox and transmits information about the current load and engine operating status to it. Thanks to this, gear changes are smooth and predictable, and the entire drivetrain maintains operational consistency in various driving conditions.

Why choose a used ECU DME module

A used BMW engine controller is a solution that allows for a significant reduction in repair costs compared to purchasing a new component, while maintaining the original manufacturer's specifications. In the case of control electronics, it is particularly important that the module comes from the same hardware and software family, which increases the chance of trouble-free adaptation in the vehicle.

If you want to better understand the principles of selecting and installing such components, you will find practical tips in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. The article discusses, among other things, selection by VIN/OEM, compatibility issues, and the most frequently asked questions related to the installation of used modules.

Expansion of the control system in BMW

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, engine management modules, or auxiliary controllers, check the available parts in the BMW Electronic control modules and controllers category.

Summary

The presented BMW 1 and 3 series engine ECU DME controller for the N45N petrol unit and automatic transmission is a functional element of the drivetrain management system, coming from the original production line. Using the correct module from the Electronic control modules and controllers group allows for restoring proper engine and transmission operation, maintaining factory parameters and consistency with the rest of the vehicle's electronics.