BMW 3 E90 E91 E92 E93 330i N53 272HP ECU Kit DME CAS3 + Key 7583332 Automatic

BMW 3 E90 E91 E92 E93 330i N53 272HP ECU Kit DME CAS3 + Key Automatic is a complete control kit designed for the BMW 3 Series powertrain with the N53 272HP engine and automatic transmission. The set includes the DME engine control unit, the CAS3 module, and a key, allowing for seamless, factory-spec cooperation between electronic components. This solution is particularly useful when replacing a faulty ECU, performing a drivetrain swap, or conducting comprehensive engine electronics repairs.

Specifications and technical data

• SKU: 7583332-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7583332
• Substitutable numbers: 12147616431, 7616431, 12147583332, 7583332, 5WK93642, 61359147195, 9147195, KZ
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the ECU DME CAS3 + Key kit

The presented kit belongs to the Electronic control modules and ECUs category and is dedicated to BMW 3 Series E90, E91, E92, and E93 models in the 330i version with the N53 272HP unit. Combining the DME controller with the CAS3 module and a matched key ensures a consistent system for start authorization, engine management, and communication with other vehicle modules.

In practice, this allows for the transfer of the complete "brain" of the powertrain from one vehicle to another, which is particularly important for:

• replacing a damaged engine control unit,
• resolving issues with the CAS3 module and immobilizer,
• projects requiring a complete ECU kit with a key.

Benefits of using a complete control unit kit

Using a complete DME + CAS3 + key kit significantly simplifies the service process compared to sourcing individual modules. The components are already paired, which reduces the need for complex programming and immobilizer synchronization with the engine control unit.

Key advantages of this solution include:

• powertrain electronics consistency – the engine controller and CAS3 module work within a single ecosystem,
• maintaining the performance characteristics of the N53 272HP unit according to BMW factory specifications,
• restoring full vehicle functionality after engine electronics or starting system failure.

Automatic transmission compatibility

The kit is configured for an automatic transmission, which is crucial for torque management logic, cooperation with the transmission module, and comfort and safety systems. Proper matching of the controller to the transmission type affects:

• gear shift smoothness and throttle response,
• correct communication with the transmission module and onboard systems,
• engine stability in various driving modes.

As a result, this kit is especially valuable for repairs on cars with automatic transmissions, where incorrect controller selection can cause errors, limp mode, or improper transmission operation.

Product characteristics and service application

The product comes from the BMW range and is part of the original electronic architecture of these models. As a part from the Electronic control modules and ECUs category, it is suitable for both professional workshops specializing in the BMW brand and advanced users carrying out their own repair or upgrade projects.

Due to its nature, the ECU DME CAS3 + Key kit is highly recommended when you want to:

• preserve the factory N53 engine control logic,
• minimize issues with the immobilizer and key authorization,
• restore the original electronics configuration after an engine or transmission swap.

Expanding the BMW control system – category and brand

If you are planning a comprehensive repair or upgrade of your BMW's engine electronics and need other components from the same group, such as additional controllers, engine management modules, or auxiliary controllers, check out the available parts in the BMW Electronic control modules and ECUs category.

Knowledge about premium electronics and used parts

When working with advanced premium brand electronics, it is worth knowing the best practices for selecting and installing used components. A broader context on how to maintain the character and properties of premium class cars using original aftermarket parts can be found in the article Audi and pure emotion – how used parts help maintain the brand's DNA, which shows how properly selected electronic modules influence vehicle performance.