BMW E90 E91 E92 N52N 330i 272HP ECU Kit Module DME 7574544 CAS3 + Key Automatic

BMW E90 E91 E92 N52N 330i 272HP ECU Kit Module DME CAS3 + Key Automatic is an advanced electronic set designed for petrol vehicles with an automatic transmission. Thanks to the factory BMW architecture and the preserved consistency of the components, the set ensures proper cooperation between the engine control system and the immobilizer, which facilitates professional repair or replacement of the powertrain electronics.

Specifications and technical data

• SKU: 7574544-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7574544
• Substitutable numbers: 12147574544, 7574544, 12147581123, 7581123, 12148613000, 8613000, 61356943830, 6943830, 5WK90210
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application and function of the ECU DME + CAS3 + Key set

The presented set includes an electronic DME engine control module, a CAS3 module responsible for start authorization, and a matched key. In BMW vehicles with the N52N 330i engine, such a set creates a coherent control system that manages the operation of the petrol unit, communication with the immobilizer, and start-up handling in an automatic transmission configuration.

Combining these elements into one package allows for reducing the risk of software matching and immobilizer synchronization issues, which is particularly important when replacing electronics in modern powertrains.

Benefits of using an original BMW control module

The set from this Electronic control modules and ECUs group has been designed specifically for the electrical architecture of the BMW 3 Series E9x generation. This means maintaining proper communication via data buses, correct cooperation with the automatic transmission, and other onboard systems.

Key advantages of this solution include:

• maintaining factory petrol engine control logic,
• consistency of the DME module with the CAS3 and key in one set,
• simplified adaptation procedure compared to selecting individual components,
• increased chance of quickly restoring full vehicle functionality after an electronics failure.

Technical characteristics in the context of engine and transmission

The set is intended for BMW cars with the N52N 330i 272HP petrol engine, working with an automatic transmission. A properly selected DME controller supports specific petrol unit operating maps, as well as communication with the automatic transmission control module, which is significant for the smoothness of gear changes and the stability of the entire powertrain.

Thanks to this solution, it is possible to maintain the correct engine operating parameters, such as throttle response, gear shifting strategy, or cooperation with safety systems, in accordance with the manufacturer's specifications.

Condition, verification, and selection by part numbers

The item belongs to the group of used BMW electronic components, which in practice allows for economical vehicle repair while maintaining the original control architecture. Before installation, it is recommended to verify compatibility by part number and interchangeable numbers, as well as to consult an electrician or diagnostician equipped with appropriate service software.

If you want to better understand how to safely select and install used engine controllers and other electronic modules, practical tips can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Expanding the control system in BMW – related modules

If you are planning a comprehensive repair or upgrade of the engine control area in your BMW and need other elements from the same group, such as additional controllers, auxiliary modules, or powertrain system controllers, check the available parts in the BMW Electronic control modules and ECUs category.

Such consistent selection of components allows for maintaining a uniform electronics architecture in the vehicle, which translates into stable system operation, easier diagnostics, and greater predictability of the car's behavior after repair.