BMW E81 E87 LCI E90 116i 316i 1.6 N45N ECU Control Unit DME 7567321 Manuel

BMW E87 E90 116i 316i N45 Engine Computer 7567321 is an original electronic engine control unit designed for BMW 1 Series and 3 Series models with an N45 engine and manual transmission. This component from the Electronic Control Modules and Controllers group is responsible for precise engine management, ensuring stable parameters and correct interaction with other vehicle systems. It is a solution for users who want to restore proper drivetrain operation while maintaining BMW's factory characteristics.

Spécifications et données techniques

• UGS: 7567321
• Marque: d'origine BMW
• Condition: D'occasion
• Numéro de pièce OEM: 7567321
• Nombres substituables: 12147591162, 12147591163, 12147567321, 12147585435, 12147585249, 12147581848, 12147582242, 12147581610, 12147557951, 12147581609, 7591162, 7591163, 7567321, 7585435, 7585249, 7581848, 7582242, 7581610, 7557951, 7581609, 0261201553, 0 261 201 553
• Type de boîte de vitesses: Boîte de Vitesses Manuelle
• Catégorie: Allumage CDI / ECU

Purpose and Compatibility

The presented engine computer is designed to work with the N45 unit in BMW E87 and E90 models, specifically the 116i and 316i versions equipped with a manual transmission. It controls key engine operating parameters such as fuel injection, ignition, and adaptive corrections, which translates into predictable vehicle behavior and consistency with factory software.

By using an original controller from the BMW group, compatibility with the vehicle's electrical architecture, wiring harness, and other electronic modules is maintained. The presence of dedicated interchangeable part numbers allows for selecting the appropriate variant for a specific car configuration without the need for installation modifications.

Function in the Drivetrain

The engine computer acts as the central processing unit for the entire drivetrain. Based on signals from sensors, it analyzes operating conditions in real-time and controls actuators such as injectors and the ignition system. For the N45 engine, this is particularly important for:

• maintaining stable idle speed,
• smooth power delivery across the entire RPM range,
• proper interaction with the manual gearbox,
• exhaust emission control in accordance with factory specifications.

A functional control unit helps to reduce typical symptoms of electronic malfunctions, such as rough engine running, power loss, or warning lights illuminating. Replacing a faulty module with the correct engine computer restores predictable throttle response and proper communication with other vehicle systems.

Benefits of Using an Original Controller

Using an original engine computer for BMW with an N45 unit offers a number of practical benefits:

• Factory Fit – design and software tailored to the specific engine and manual transmission configuration.
• Electrical System Compatibility – no need for wiring or connector modifications, maintaining compatibility with other modules.
• Diagnostic Adaptability – the controller works with BMW's factory service tools, facilitating coding and configuration.
• Stable Engine Operation – correct control of engine operating parameters reduces the risk of incorrect readings and errors.

As a component from the Electronic Control Modules and Controllers category, this engine computer is crucial for maintaining BMW's characteristic throttle response and predictable vehicle behavior in everyday use.

Product Characteristics and Installation

The offered controller is a used part, allowing for an economical repair of the drivetrain while maintaining the manufacturer's original specifications. Before installation, it is recommended to perform a standard diagnostic procedure and prepare the vehicle for module adaptation according to workshop practices for BMW controllers.

Due to its connection with the immobilizer and other comfort and safety modules, the engine computer installation should be performed by a workshop experienced in BMW electronics and with access to appropriate diagnostic software. This ensures correct coding of the controller, its assignment to the vehicle, and verification of communication within the vehicle network.

Expanding the Control System in BMW

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

For users interested in a broader perspective on the importance of original electronic modules in modern premium cars, including the impact of controllers on maintaining brand character, an article on our blog may be helpful: Audi and Pure Emotion – How Used Electronic Modules and Parts Help Maintain Brand DNA.