BMW 3 5 Series E60 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key 7577968 Manual

BMW 3 5 Series E60 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key is a complete set from the Electronic control modules and controllers group, designed for BMW vehicles with the N52 engine and manual transmission. The set includes the DME engine control unit, the CAS2 module, and a matched key, which facilitates a consistent, professional replacement of the vehicle's control electronics.

Specifications and technical data

• SKU: 7577968-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7577968
• Substitutable numbers: 12147577970 12147577968 5WK98087 61356981416, 7577970 7577968 5WK98087 6981416
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose 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 unit in 325i and 525i versions, equipped with a manual transmission. Combining the DME controller, CAS2 module, and key in one set allows for maintaining the consistency of the immobilizer system and engine start logic, which is particularly important when replacing electronics in modern vehicles.

A set configured in this way facilitates work for workshops specializing in the BMW brand, reducing the risk of component matching issues and shortening the time required for diagnostics and configuration.

Benefits of using a complete control kit

Using a complete BMW 3 5 Series E60 E90 E91 N52 325i 525i ECU Kit DME CAS2 Key in BMW cars with the N52 engine provides a number of practical service and operational benefits:

• consistency of components responsible for start authorization and communication within the vehicle network,
• reduction of the need for deep programming from scratch, thanks to the matching of the controller, CAS2 module, and key,
• increased predictability of the engine control system operation after replacement,
• easier diagnostics in case of previous problems with starting the vehicle or communication with modules.

For workshops and users, this means a more organized repair process and the ability to restore full vehicle functionality faster.

Technical characteristics and vehicle integration

The set belongs to the Electronic control modules and controllers group, which means it works with the vehicle's communication buses as well as other comfort and safety modules. The presence of the CAS2 module and the key in one set is particularly important in the context of the immobilizer system and synchronization with the DME unit.

Being designed for vehicles with a manual transmission ensures the compatibility of the control logic with the transmission's operating characteristics, which is significant for the proper functioning of features related to starting, ignition cutoff, and cooperation with other vehicle systems.

Professional application and selection by part numbers

Due to the specificity of BMW electronics, it is recommended that the installation and configuration of the set be performed by a workshop with experience in working with DME and CAS2 modules. Proper selection based on OEM numbers and interchangeable numbers allows for confirming compatibility with a specific vehicle configuration, which minimizes the risk of improper system operation.

To better understand the principles of selecting used control modules, their hardware and software compatibility, and best installation practices, it is worth reading the guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Condition, verification, and service application

The product comes from the segment of used BMW components, which makes it an attractive cost-effective solution while maintaining the manufacturer's original specifications. Such sets are often used in professional workshops to solve problems with starting, engine control unit communication errors, or immobilizer system inconsistencies.

Before installation, a standard diagnostic procedure and matching the configuration to the specific vehicle, taking into account the equipment version and software, are recommended.

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 body units, check the available parts in the BMW electronic control modules and controllers category.