BMW E87 E90 120i 320i N46 150HP ECU Kit DME 7552176 CAS2 + Key Manual

BMW E87 E90 120i 320i N46 150HP ECU Kit DME CAS2 + Key Manual is a complete electronic set from the Electronic control modules and controllers group, designed for BMW vehicles with the N46 150HP engine and manual transmission. The set includes the DME engine control unit, the CAS2 module, and a matched key, which allows for a cohesive replacement of the electronics without the need for tedious programming from scratch. This is a practical solution for workshops and users who want to restore full functionality to the drivetrain after the failure of the original controller.

Specifications and technical data

• SKU: 7552176-10
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7552176
• Substitutable numbers: 118i 318i, 12147552177 12147552176 12147550535, 12147550534 12147545043 12147545042, 12147531846, 7552177 7552176 7550535 7550534 754504 75450423, 7531846, 12147557291, 7557291, 61356964051, 6964051, 0261208582, 0 261 208 582
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application and compatibility

The presented ECU kit is intended for BMW 1 Series E87 and 3 Series E90 models in 120i and 320i versions with the 150HP N46 engine. Thanks to the integration of the DME controller, CAS2 module, and key, this set constitutes a coherent security and engine control system, matched to a specific drivetrain configuration. This type of solution is particularly useful when replacing a damaged controller, dealing with immobilizer issues, or after unsuccessful attempts to program the vehicle's electronics.

Kit construction and function of individual elements

The set includes an electronic DME engine controller responsible for precise management of the N46 unit's operation, a CAS2 module acting as the central element of the authorization and security system, and a key matched to this module. This configuration ensures data consistency between all components, which facilitates starting the vehicle after installation. The set is prepared for use with a manual transmission, which is important for proper communication with other controllers in the vehicle.

Benefits of using a complete ECU Kit

Using a complete ECU kit with DME, CAS2, and a key reduces the time required for diagnostics and programming, as the key elements of the system are already synchronized with each other. For workshops, this means more efficient repair handling, and for the user – a faster return of the vehicle to full efficiency. Original BMW components ensure proper communication within the vehicle's bus and compliance with factory safety and comfort functions. In the case of used electronics, it is also important that the set comes from a single car, which minimizes the risk of software conflicts.

Intended for manual transmission

The set has been configured to work with a manual transmission, which is significant both for engine control logic and for communication with other modules in the vehicle. Proper matching of the transmission type is crucial to avoid system operation errors, starting problems, or incorrect reactions to sensor signals. By choosing this set, you receive a solution prepared for a specific drivetrain configuration, which facilitates installation and subsequent operation.

Condition, verification, and practical application

The elements included in the set come from an operational vehicle, which allows for their reuse in another car while maintaining a favorable cost-to-effect ratio. Used Electronic control modules and controllers are frequently chosen by professional services as an economical alternative to new parts, especially in the case of older vehicle generations. Before installation, standard diagnostics and matching the configuration to the specific car instance in accordance with BMW procedures are recommended. If you want to better understand when choosing a used engine controller, comfort module, or sensors is cost-effective and safe, check out our guide: The second life of electronics – when is it worth opting for used engine controllers, comfort modules, and parking sensors? If you are planning a comprehensive repair or upgrade of the control electronics area in your BMW and need other elements from the same group, such as engine controllers, comfort modules, or transmission controllers, check the available parts in the BMW electronic control modules and controllers category.