BMW 1 3 Series E87 E90 ECU N45 116i 316i Engine Motor Control Unit DME 7545046

BMW 1 3 Series E87 E90 ECU N45 116i 316i Engine Motor Control Unit DME is an original electronic engine control module designed for N45 units in 1 Series E87 and 3 Series E90 models. This DME controller from the Electronic control modules and controllers category ensures precise engine management, allowing for the restoration of proper drivetrain functionality. This is an OEM BMW solution that enables a technically correct repair without compromising on compatibility.

Specifications and technical data

• SKU: 7545046-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7545046
• Substitutable numbers: 12147568427, 7568427, 12147545046, 7545046, 0261209016, 0 261 209 016
• Category: ECUs & Computer Modules

Purpose and function of the DME controller

The presented engine controller is dedicated to N45 petrol units in BMW 1 Series E87 and 3 Series E90 models in 116i and 316i versions. As a factory DME module, it is responsible for comprehensive control of the combustion process, fuel metering, ignition, and interaction with engine sensors and actuators. Using an original module allows you to maintain the engine's operating characteristics in accordance with the manufacturer's specifications.

Benefits of using an original BMW ECU

Using a factory controller instead of a damaged component ensures:

• retention of factory engine control maps and stable idle operation,
• proper interaction with the vehicle's electrical system and other modules,
• consistency with BMW diagnostic systems, which facilitates service and configuration,
• reduced risk of communication errors in the vehicle's bus system. For workshops and users, this means a predictable installation process and the ability to restore full drivetrain functionality without experimenting with unreliable replacements. The original BMW control module also provides greater confidence regarding long-term compatibility with the vehicle's remaining electronics.

Product characteristics and condition

The offered controller belongs to the Electronic control modules and controllers group, which means it is a key component for engine operation and communication with other vehicle systems. The product is used, which in practice allows for an economical repair while maintaining the original manufacturer's specifications. The module comes from disassembly, making it an attractive cost-effective alternative to new OEM parts, while maintaining proper fitment for the specific configuration of the BMW 1 and 3 Series.

Professional application in service and diagnostics

This type of DME controller is particularly valued in professional workshops specializing in BMW electronics, where repair repeatability and compliance with factory standards are essential. It enables:

• advanced diagnostics of faults related to engine operation,
• restoration of proper communication with other vehicle modules,
• application of service procedures in accordance with manufacturer documentation. For the end user, this means a higher chance of successfully repairing issues with starting, rough engine operation, or persistent errors in the engine control system.

Related components and further knowledge

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 engine control systems, check out the available parts in the BMW electronic control modules and controllers category. For a better understanding of how original control modules influence a car's character and behavior, it is worth reading an article describing the role of factory components in maintaining the brand's DNA – check out the material: Audi and pure emotion. How do used parts help maintain the brand's DNA?. If you are interested in how the quick availability of used OEM components, such as engine controllers, affects vehicle downtime in the workshop, the following guide may also be helpful: Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten workshop stays?.