BMW E81 E87 LCI E90 116i 316i N45N 116HP Engine ECU Unit DME 7581848 Manual

BMW E81 E87 LCI E90 116i 316i N45N 116HP Engine ECU Unit DME is a specialized controller designed for 116 HP N45N petrol engines in 1 Series and 3 Series models with a manual transmission. As part of the Electronic control modules and controllers group, it is responsible for precise engine management, ensuring stable power characteristics and proper cooperation with other vehicle systems. This solution is dedicated to users looking for a proven DME module matched to a specific drivetrain configuration.

Specifications and technical data

• SKU: 7581848
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7581848
• Substitutable numbers: 7581848, 12147581848, 7591162, 12147591162, 7591163, 12147591163, 7567321, 12147567321, 7585435, 12147585435, 7585249, 12147585249, 7582242, 12147582242, 7581610, 12147581610, 7557951, 12147557951, 7581609, 12147581609, 0261S04117, 0 261 S04 117
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and compatibility with the N45N unit

The presented DME engine computer is designed to work with the 116 HP N45N petrol engine used in BMW 1 Series E81/E87 LCI and 3 Series E90 models in 116i and 316i versions. The controller is configured for the specific characteristics of this unit, which allows for maintaining correct operating parameters, such as fuel dosage, ignition timing, and load response.

Thanks to its adaptation for a manual transmission drivetrain, the module ensures consistent cooperation with the transmission system, which is important for both smooth acceleration and the correct operation of diagnostic functions. Using the appropriate DME controller reduces the risk of communication errors in the vehicle network and facilitates subsequent maintenance.

Operating characteristics and DME controller function

The engine computer in this configuration acts as the central element managing the operation of the power unit. It is responsible for, among other things:

• controlling the fuel injection process in the petrol engine,
• controlling ignition depending on load and engine speed,
• monitoring engine operating parameters and recording any errors,
• cooperating with sensors and other electronic modules in the vehicle.

A properly selected DME controller helps maintain stable engine performance, predictable throttle response, and the correct operation of safety systems dependent on data from the power unit. This is particularly important in the case of modern electronic systems, where configuration consistency has a direct impact on reliability.

Benefits of using a used control module

Choosing a used DME engine computer for BMW E81, E87 LCI, and E90 series can be a reasonable solution when repairing or replacing a damaged controller. This allows for a significant reduction in service costs while maintaining the original module specification. For many users, it is important that the controller comes from the same family of solutions used at the factory, which facilitates integration with the existing electrical installation.

Before installation, it is recommended to verify compatibility with the vehicle and prepare for adaptation or programming in accordance with BMW service procedures. This allows you to achieve stable drivetrain operation and correct diagnostic function performance without the need for a costly replacement with a new module.

BMW electronic control modules and controllers – expansion and service

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, power unit management modules, or additional auxiliary system controllers, check the available parts in the BMW electronic control modules and controllers category.

Technical support and selecting the right controller

When selecting an engine computer for specific versions of BMW 1 and 3 Series, it is worth using reliable sources of information and the experience of workshops specializing in the electronics of this brand. Materials describing the practical aspects of replacing and programming controllers, as well as integration with other modules in the vehicle, can be helpful.

More practical tips on working with BMW electronics, including engine controllers, can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using dismantled parts?. Additionally, it is worth reading the guide The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which discusses key issues related to choosing used electronic modules.