BMW E87 E90 E91 N46 120i 320i Engine DME 7561834 ECU KIT CAS2 + 2 Keys Manual

BMW E87 E90 E91 N46 120i 320i Engine DME 7561834 ECU KIT CAS2 + 2 Keys Manual is a factory electronic control unit designed for N46 engines in 1 Series and 3 Series models with a manual transmission. This component from the Electronic control modules and controllers group ensures precise engine management, tailored to the characteristics of a manual gearbox. This used OEM controller is a sensible choice for professional repairs or replacing a damaged engine computer.

Specifications and technical data

• SKU: 7561834-9
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7561834
• Substitutable numbers: 7565300, 12147561834, 7561834, 12147565300, 1214755729012147557930, 7557290, 7557930, 12147565301, 7565301, 61356943791, 0261201159, 6943791
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented engine computer is dedicated to N46 petrol engines used in BMW E87 and E90 series in 120i and 320i versions with a manual transmission. As the central element of the engine management system, it is responsible for controlling combustion parameters, interacting with accessories, and communicating with other vehicle modules. Using a controller matched to the specific drivetrain configuration allows for maintaining proper performance, smooth operation, and stability of the powertrain.

Benefits of using an original BMW module

Choosing an original module from the Electronic control modules and controllers group ensures compatibility with BMW's factory electrical architecture. The appropriate software and configuration for the N46 engine and manual transmission facilitate adaptation during installation and subsequent diagnostics. This reduces the risk of bus communication issues, engine operation errors, or malfunctions of cooperating systems.

Technical characteristics and installation

The controller is prepared for operation in vehicles with a manual transmission, which is significant for torque control logic, throttle response, and interaction with safety systems. The module has assigned part numbers and interchangeable numbers, which facilitates verifying compatibility with a specific BMW version. Before installation, it is recommended to compare markings and consult with a diagnostician or automotive electrician for proper coding and potential synchronization with the immobilizer.

Condition, origin, and use in repairs

The offered engine computer is a used part, sourced from dismantling, which allows for significantly reducing repair costs compared to purchasing a new module. At the same time, you retain the advantages of OEM parts, such as proper fitment to the installation, predictable operational behavior, and full integration with vehicle systems. This is a practical solution both in the event of a controller failure and for advanced powertrain repairs where maintaining the original specification is required.

Technical support and additional information

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 control modules, engine controllers, or comfort controllers, check the available parts in the BMW electronic control modules and controllers category.

Before deciding to purchase a used controller, it is worth familiarizing yourself with practical tips regarding the selection and installation of electronics. Detailed advice can be found in the article A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which discusses key aspects of safety, cost-effectiveness, and diagnostics when using used electronic modules.