BMW E87 E90 E91 N46 118i 318i 120i 320i ECU DME Engine Control Unit 7565300

BMW E87 E90 E91 N46 118i 318i 120i 320i ECU DME Engine Control Unit is an original engine control unit designed for N46 engines in popular 1 Series and 3 Series models. As part of the Electronic control modules and controllers group, it is responsible for precise engine management, fuel injection, and ignition, ensuring stable performance of the powertrain. This used OEM BMW controller is a solution that allows for maintaining factory control logic and high compatibility with the vehicle's electrical system.

Specifications and technical data

• SKU: 7565300-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7565300
• Substitutable numbers: 12147565300, 7565300, 12147561834, 7561834, 12147557290, 7557290, 12147557930, 7557930, 0261201160
• Category: ECUs & Computer Modules

Purpose and function of the BMW engine control unit

The presented DME controller is designed to work with N46 petrol engines in BMW 1 Series (118i, 120i) and 3 Series (318i, 320i) models of the E87, E90, and E91 generations. As the central control unit for the powertrain, the module analyzes signals from sensors, calculates fuel dosage, ignition timing, and engine accessory operating parameters. This makes it possible to maintain proper power, smooth operation, and compliance with factory emission standards.

The original BMW controller from this series is optimized for the specific electrical architecture of the vehicle, which facilitates integration with the wiring, communication via the data bus, and cooperation with other onboard modules. For workshops and users, this means predictable powertrain behavior after proper matching and programming of the controller.

Benefits of using an original ECU DME

Using a factory engine controller in a BMW with an N46 unit allows for maintaining software and configuration consistency with the rest of the vehicle's electronics. Compared to replacements, the original module provides:

• compliance with factory engine control maps,
• proper communication with other electronic modules,
• stable operating parameters across a wide range of operating conditions,
• easier diagnostics using dedicated BMW service tools.

A used controller from this series can be an attractive cost-effective solution for repairs, especially when the existing module has suffered electronic damage or has communication issues. With proper selection and adaptation, it allows for restoring the correct operation of the powertrain without the need to invest in a new component.

Selection of the controller by OEM number and interchangeable numbers

In the case of BMW engine controllers, it is crucial to match the module to the specific vehicle version, engine, and equipment. This model has an assigned OEM part number and associated interchangeable numbers, which enables precise identification of compatibility with a given car. Before purchasing, it is worth comparing the markings with the currently installed controller or seeking assistance from a workshop to avoid adaptation problems.

For users who want to deepen their knowledge on selecting used electronic modules, the guide article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors? will be useful, as it discusses practical aspects of selecting and verifying such components.

If you want to check step-by-step how to properly match an engine controller by OEM number or vehicle data, the guide how to choose the right car part by VIN and OEM number will also be helpful, containing specific tips and a checklist to use before purchase.

Condition, installation, and workshop application

The offered module belongs to the Electronic control modules and controllers group and is a used item, which makes it an interesting option for workshops specializing in BMW service and for conscious users looking for an economical repair solution. Before installation, it is recommended to perform a standard diagnostic procedure and prepare for programming or coding in accordance with the requirements of the specific model.

In workshop practice, such a controller can be used both for a typical replacement of a damaged ECU and for more advanced work related to engine electronics, provided that hardware and software compatibility is maintained. A properly selected and configured module allows for restoring full powertrain functionality without interfering with the engine mechanics.

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