BMW 3 5 Series E60 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key 7552393 Manual

BMW 3 5 Series E60 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key Manual is a complete set from the Electronic control modules and controllers category, designed for BMW vehicles with the N52 engine and manual transmission. The set includes the DME engine control unit, CAS2 module, and a matched key, which facilitates restoring the electronic system's functionality after a failure or during an engine unit replacement.

Specifications and technical data

• SKU: 7552393-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7552393
• Substitutable numbers: 12147577970, 7577970, 12147552393, 7552393, 61356964051, 6964051, 5WK90075
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the ECU DME CAS2 Key kit

The presented set is dedicated to selected BMW 3 and 5 Series models of the E60, E90, and E91 generations with the N52 engine in 325i and 525i versions, equipped with a manual transmission. The combination of the DME controller, CAS2 module, and key ensures the consistency of the immobilizer system, which is crucial when replacing engine electronics in modern BMW vehicles.

A kit configured in this way allows for maintaining compatibility between the engine control system and the start authorization system, minimizing the risk of starting issues, CAN bus communication errors, or the need for complicated programming from scratch.

Benefits of using a complete control unit kit

Using a ready-made ECU DME CAS2 Key kit in a BMW with an N52 engine offers a number of practical benefits:

• consistency of components within a single engine control and immobilizer system,
• limited scope of coding and adaptation compared to replacing individual modules,
• reduced risk of conflicts between the controller and the CAS module,
• easier diagnostics and vehicle startup after installation.

For workshops specializing in the BMW brand and for advanced users, this is a solution that allows for shortening repair time and reducing the number of potential failure points in the area of engine electronics.

Application in vehicles with manual transmission

The offered set is intended for vehicles with a manual transmission, which is significant for the engine controller's operating logic, cooperation with safety systems, and software configuration. Proper matching of the transmission type to the DME controller is essential for the correct operation of functions such as torque control, clutch engagement response, or cooperation with electronic stability control systems.

Selecting a kit compatible with the drivetrain configuration of a specific BMW 3 or 5 Series unit allows for avoiding problems with incorrect engine maps, errors in communication with other modules, and the need for deep software modifications.

Product characteristics and condition

The presented ECU DME CAS2 Key set comes from a BMW vehicle and belongs to the Electronic control modules and controllers group. As a used item, it is particularly attractive to users and service centers looking for solutions that allow for optimizing repair costs while maintaining the vehicle's original electronic architecture.

Choosing a used OEM set is often beneficial in situations where brand-new controllers are difficult to obtain or economically unjustified in relation to the car's value, while at the same time, maintaining compatibility with the factory installation and BMW software is desired.

How to safely select a used ECU kit for a BMW

When selecting an ECU DME CAS2 Key kit for a BMW with an N52 engine, it is worth paying attention to the compatibility of the body generation, engine version, and transmission type. It is also important to check whether the vehicle's equipment configuration (e.g., safety systems, comfort systems) corresponds to the solutions supported by the given controller.

To better understand when choosing a used engine controller and electronic modules is justified and how to minimize risk with such an investment, it is worth reading the guide: Second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

If you are planning a comprehensive repair or upgrade of the engine electronics area in your BMW and need other components from the same group, such as engine controllers, CAS modules, or other body controllers, check the available parts in the BMW Electronic control modules and controllers category.