BMW E87 E90 N46 118i 318i 129HP ECU Engine Module KIT DME 7561834 CAS2 Key

BMW E87 E90 N46 118i 318i Engine Computer 129HP ECU KIT DME 7561834 is a factory electronic control module designed for BMW powertrains with a 129 HP N46 engine. This complete ECU KIT DME, from the Electronic Control Modules and Controllers group, ensures proper management of the engine's operation, injection parameters, and ignition. Thanks to its original BMW design, the module guarantees consistency with the vehicle's electrical architecture and stable engine control.

Specifications and technical data

• SKU: 7561834-12
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7561834
• Substitutable numbers: 12147565301, 7565301, 12147561834, 7561834, 0261201159, 61356981416, 6981416
• Category: ECUs & Computer Modules

DME Controller Purpose and Function

The presented engine computer is a component of the engine management system for BMW 1 Series E87 and 3 Series E90 models with a 129 HP N46 engine, designated as 118i and 318i. The DME controller is responsible for coordinating key engine operating parameters, such as fuel dosage, ignition timing, and idle control, by collaborating with sensors and other modules in the vehicle. Using an original ECU KIT allows for maintaining the engine's factory operating characteristics and correct communication within the vehicle network.

Benefits of Using an Original ECU KIT

Using a complete ECU KIT DME to replace a damaged controller is a technically safe and predictable solution in terms of operation. An original module from the Electronic Control Modules and Controllers group is designed for a specific engine platform, which minimizes the risk of software compatibility issues and communication problems with other vehicle systems. In practice, this translates to stable starting, smooth idling, and correct operation of OBD diagnostic functions.

For the user, this means the ability to restore full powertrain functionality without the need for universal or adapted solutions, which often require additional wiring modifications. For this controller, matching by OEM number and interchangeable numbers is possible, which facilitates the selection of the appropriate variant for a specific vehicle configuration.

Selection by OEM and Interchangeable Numbers

This BMW engine computer has a dedicated OEM part number and a set of interchangeable numbers, allowing for precise identification and matching to a specific vehicle instance. In practice, this means that before purchasing, you can verify the module's compatibility with your car based on service documentation, markings on the old controller, or catalog data. This selection method reduces the risk of purchasing an incompatible component and speeds up the engine control system repair process.

If you want to deepen your knowledge on selecting used controllers, differences between hardware and software versions, and installation principles, consult the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?. The article explains, among other things, how to correctly use OEM and reference numbers when choosing ECU modules.

Product Characteristics and Service Application

The offered controller is from the original BMW solutions group and is intended for service applications in vehicles with a 129 HP N46 engine. It can be used for both typical replacement of a damaged engine computer and for more complex control system repairs where maintaining consistency with the vehicle's factory configuration is required. Because it is an ECU KIT, it is possible to restore communication within the powertrain according to the manufacturer's specifications.

In practice, this module is particularly useful in situations where the existing controller has suffered an electronic failure, thermal damage, or has been flooded, and repair is not cost-effective. Using an original engine computer allows for restoring correct operation of functions related to injection, ignition, and engine monitoring, which directly impacts the engine's running smoothness and fuel consumption.

Condition, Verification, and Installation Aspects

The module is offered as a used part, which for BMW electronics often represents a rational compromise between cost and functionality. Such controllers, with proper selection and installation, can successfully continue to operate in another vehicle, maintaining the parameters required by the manufacturer. Key here is matching by numbers and considering adaptation procedures and potential in-vehicle programming.

Due to the specifics of DME systems, it is advisable to entrust the installation and configuration of the controller to a workshop with appropriate diagnostic equipment and experience with BMW electronics. This helps avoid problems with bus communication, errors in the airbag module or immobilizer system, and ensures correct saving of the vehicle's configuration.

Expanding the BMW Control System

If you are planning a comprehensive engine area repair or upgrade for your BMW and need other components from the same group, such as controllers, comfort modules, or drive management units, check the available parts in the BMW Electronic Control Modules and Controllers category.