BMW E60 E90 325i 525i N52 218HP ECU Module Kit DME 7567178 CAS3 Key Automatic

BMW E60 E90 325i 525i N52 218HP ECU Module Kit DME CAS3 Key Automatic is a complete set from the Electronic control modules and controllers category, designed for BMW vehicles with the N52 218HP engine and automatic transmission. The kit includes the DME engine control unit, the CAS3 module, and a matched key, which facilitates a seamless replacement of electronic system components in BMW 3 Series E90 and 5 Series E60 cars.

Specifications and technical data

• SKU: 7567178-9
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7567178
• Substitutable numbers: 12147567178, 7567178, 12147577970, 7577970, 5WK98085, 61356943814, 6943814, KZ
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and compatibility of the ECU kit

The presented control kit has been prepared for BMW vehicles equipped with the 218HP N52 engine and automatic transmission. The combination of the DME controller, CAS3 module, and key allows for consistent handling of start functions, key authorization, and engine management in 325i and 525i models from the E-series family.

A set configured in this way is particularly useful in situations where it is necessary to replace the entire engine control system along with the immobilizer, for example, after electronic failure or during advanced repair work on the electrical installation.

Functions of the DME controller and CAS3 module

The DME controller is responsible for precise management of the N52 engine, including combustion parameter control, accessory monitoring, and communication with other vehicle systems. The CAS3 module acts as the central authorization element, working with the key and the automatic transmission, which ensures proper operation of the start/stop function and anti-theft security.

Combining these components into one kit reduces the risk of software matching and synchronization issues, which in practice shortens diagnostic and configuration time after installation in the car.

Application in vehicles with automatic transmission

The discussed kit has been prepared for use with an automatic transmission, which is important for correct communication between the engine controller, the CAS3 module, and the transmission control system. This makes it possible to maintain the proper starting logic, gear selector lock, and smooth cooperation of the drivetrain with safety systems.

In BMW E60 and E90 series vehicles, such matching of electronic elements is crucial for the stable operation of the drivetrain, especially after major repairs or replacement of main control modules.

Characteristics of the used product

The DME, CAS3, and key set is offered as a used item, which allows for economical vehicle repair while maintaining the original BMW electronic architecture. This type of solution is often chosen in professional workshops when the priority is to maintain compatibility with factory solutions while optimizing costs.

Using original modules from the same model group promotes the preservation of the N52 engine's performance characteristics and proper cooperation with the existing electrical installation, which is important for both durability and subsequent service diagnostics.

Expanding the control system in BMW

If you are planning a comprehensive repair or upgrade of the engine control and drivetrain electronics area in your BMW and need other components from the same group, such as additional controllers, comfort modules, or engine management units, check out the available parts in the BMW electronic control modules and controllers category.

More about the role of original modules in modern cars

For a better understanding of how original control modules influence the character and behavior of modern cars, it is worth reading an article describing the importance of factory components in a premium brand – you can find it here: Audi and emotions in their purest form – how used parts help maintain the brand's DNA.

If you are interested in a broader approach to sourcing used electronic and mechanical components in one place, the guide on One-Stop-Shop purchases may also be helpful: comprehensive supply of used car parts.