BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU KIT DME 7552176 CAS2 + Key Manual

BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU KIT DME CAS2 + Key Manual is a specialized module from the Electronic control modules and controllers category, responsible for handling comfort and authorization functions in BMW 1 and 3 Series vehicles with the N46 engine. This solution is designed for cars with a manual transmission, allowing for the maintenance of electronic consistency with the vehicle's factory architecture.

Specifications and technical data

• SKU: 7552176-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7552176
• Substitutable numbers: 12147552177 12147552176 12147550535, 12147550534 12147545043 12147545042, 12147531846, 7531846, 12147557291, 7557291, 7552177 7552176 7550535, 7550534 7545043 7545042, 61356943771, 6943771, 0261208582, 0 261 208 582
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the CAS module

The presented CAS computer is dedicated to BMW 1 Series E87 and 3 Series E90 and E91 models in 120i and 320i versions with the N46 unit. The module works with the vehicle's control systems, ensuring proper communication between the key, ignition switch, starting system, and other controllers in the car. This ensures the consistency of security and comfort systems, which is crucial for professional BMW electronics repair.

Compatibility and interchangeable numbers

The CAS computer belongs to a group of components for which the manufacturer has provided various catalog numbers and interchangeable numbers. This means that the module may appear in several variants of markings while maintaining the same function and logic of operation within a given range of models. For workshops and auto electricians, this is a significant convenience when selecting parts, as it allows the controller to be matched to a specific car configuration based on technical reference compliance.

Integration with the vehicle and manual transmission

The offered CAS computer is designed for cars equipped with a manual transmission, which is important for integration with other controllers in the vehicle. Proper matching of the module to the transmission type affects correct cooperation with the starting system, security logic, and communication on the data bus. When replacing the module in BMW E87, E90, and E91 vehicles with the N46 engine, both the transmission type and compatibility with the electronics architecture of the specific unit must always be taken into account.

Application in professional BMW service

This type of CAS module is often used in specialized BMW service centers and by auto electricians dealing with the diagnostics and repair of advanced electronic systems. It enables the restoration of full functionality of the starting and security system after an original controller failure or in the case of damage resulting from installation problems. Electronic control modules and controllers of this type require an appropriate programming and adaptation procedure, which is why they are particularly valued in workshops equipped with specialized diagnostic facilities.

Condition and origin of the part

The offered CAS computer is a used part, sourced from a dismantled BMW vehicle. Such components are frequently chosen by workshops and conscious users who are looking for solutions consistent with factory specifications while also being cost-effective. A used OEM module allows for maintaining original build quality and compatibility with the electrical installation, which is particularly important in the case of advanced electronic systems. If you are planning a comprehensive repair or upgrade of the control electronics area in your BMW and need other components from the same group, such as comfort controllers, body modules, or engine control units, check the available parts in the BMW electronic control modules and controllers category. For those who want to better understand the operation of BMW electronic modules and the possibilities of using dismantled parts for repairs of the 3 and 5 series, a valuable supplement will be the article on our blog: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?

Summary

BMW 1 3 Series E87 E90 E91 120i 320i N46 ECU KIT DME CAS2 + Key Manual is a practical solution for service centers and users who need a control module consistent with factory specifications for BMW vehicles with the N46 engine and manual transmission. Choosing an original controller from dismantling allows for maintaining proper integration with security and comfort systems, while also representing a reasonable compromise between quality and repair cost.