BMW E60 E63 E64 530i 630i N52 258HP ECU Kit DME 7546990 + CAS2 + Key Manual

BMW E60 E63 E64 530i 630i N52 258HP ECU Kit DME + CAS2 + Key Manual is a complete engine control kit designed for petrol-powered BMW 5 and 6 series models with the N52 engine, 258 HP output, and manual transmission. The kit includes the DME controller, CAS2 module, and a matched key, which facilitates restoring the proper operation of the electronic system after a failure or during an engine replacement. This solution allows for consistent matching of the powertrain electronics in BMW cars of this generation.

Specifications and technical data

• SKU: 7546990-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7546990
• Substitutable numbers: 12147546990, 7546990, 12147577970, 7577970, 5WK90071 61356963828, 6963828
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and compatibility

The presented ECU kit is dedicated to BMW E60, E63, and E64 series models in 530i and 630i versions with the 258 HP N52 engine. The kit's design is optimized for use with a manual transmission and petrol fuel system, ensuring correct engine operating maps and proper communication with other vehicle modules.

Combining the DME controller with the CAS2 module and key allows for maintaining the integrity of the immobilizer system, which is crucial when replacing electronics in modern BMWs. Thanks to this kit, you can avoid time-consuming programming procedures from scratch and focus on proper installation and adaptation in the vehicle.

Kit construction and the role of individual components

The kit belongs to the Electronic control modules and ECUs category, covering key components responsible for engine management and start authorization. The DME controller is responsible for processing signals from sensors, controlling fuel injection, ignition, and cooperating with safety and comfort systems. The CAS2 module acts as the central authorization element, communicating with the key and other controllers in the vehicle.

The presence of a matched key in the kit facilitates integration with the vehicle's installation, as the immobilizer system already has its base elements synchronized. This is a practical solution in the event of replacing a damaged controller or complete engine electronics after a major failure.

Application in repairs and upgrades

This ECU kit will prove particularly useful in situations where the original controller has been damaged, there are issues with CAS2 communication, or failed programming attempts have occurred. In vehicles with the N52 engine and manual transmission, using a properly selected DME + CAS2 + key set allows for reducing the risk of errors related to software incompatibility.

In workshop practice, such a set is often used for:

• replacing the engine along with its electronic accessories,
• repairs after flooding or electrical surges in the installation,
• resolving starting problems resulting from inconsistencies between the controller and the CAS module.

Thanks to this, it is possible to restore the proper operation of the powertrain without the need for deep interference with factory security, which shortens repair time and facilitates diagnostics.

Technical characteristics regarding the powertrain

The kit has been prepared with the N52 petrol engine in mind, which means it is matched to the specifics of a naturally aspirated 258 HP unit. The controller software is configured for the characteristics of this engine, ensuring proper control of the mixture, ignition, and cooperation with auxiliary systems.

Adaptation to a manual transmission is significant for the controller's logic, including idle speed control, response to clutch engagement, or cooperation with stability control systems. This maintains the consistency of the entire powertrain, which translates into predictable vehicle behavior while driving.

Product condition and benefits of choosing a used kit

The offered set comes from the category of used electronic control modules, which allows for an economical approach to repair while maintaining the original BMW specification. Choosing such a solution is particularly beneficial for older vehicle generations, where matching the specific engine and transmission version is key.

A used ECU kit with preserved consistency of the DME, CAS2, and key minimizes the risk of coding problems and allows for a more predictable installation process. This is a practical option for workshops specializing in the BMW brand and for users who want to restore the full functionality of their car without giving up original manufacturer solutions.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as engine controllers, comfort modules, or CAS systems, check the available parts in the BMW electronic control modules and ECUs category.

For a better understanding of how original electronic modules affect the driving characteristics and behavior of a premium car, it is worth reading an article describing the role of factory components in the Audi brand – you can find it here: Audi and pure emotion – how used parts help maintain the brand's DNA.