BMW E90 E91 LCI 325i N53 218HP Engine ECU Kit DME 7583332 CAS3 + Keys Manual

BMW E90 E91 LCI 325i N53 218HP Engine ECU Kit DME CAS3 + Keys Manual is a complete engine control kit designed for facelifted 3 Series models equipped with the 218 HP N53 engine and a manual transmission. The set includes the DME engine control unit, the CAS3 module, and matched keys, facilitating seamless integration with the vehicle's electronics. This is a practical solution for workshops and users who need a proven, factory-spec BMW engine control system.

Specifications and technical data

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

Purpose and compatibility

The presented engine control kit has been developed for 218 HP N53 petrol engines installed in facelifted (LCI) BMW 3 Series E90 and E91 models with a manual transmission. The combination of the DME, CAS3 module, and keys ensures consistency of the immobilizer system and engine management, which significantly reduces the need for additional programming compared to replacing individual components.

Functionality of the DME + CAS3 + keys kit

The kit includes a complete system responsible for engine management and start authorization. The DME controller is responsible for precise control of fuel injection, ignition, and engine auxiliary systems, while the CAS3 module works with the keys to control vehicle access and engine ignition. As a result, you receive a coherent package that can be used when replacing a damaged controller, addressing immobilizer issues, or performing advanced engine electronics repairs.

Benefits of using an OEM used kit

Choosing an original BMW electronic kit from dismantling allows you to maintain the factory operating logic of the systems and high compatibility with the vehicle's wiring. A used DME + CAS3 + keys set is a solution that, in many cases, shortens repair time, reduces programming costs, and minimizes the risk of communication problems between modules. For workshops specializing in the BMW brand, this is a practical base for further vehicle configuration, and for the user – a way to restore proper engine operation while maintaining the original electronic architecture.

Application in service practice

This kit from the Electronic control modules and ECUs category is particularly useful in situations where there is damage to the engine controller, CAS3 communication issues, or improper immobilizer operation. The complete package facilitates diagnostics and installation because all components come from the same vehicle and are synchronized with each other. It is a good solution both for standard repairs and for more advanced work on the engine electronics in a BMW 3 Series.

More knowledge about BMW electronic modules

To better plan your repair and understand the dependencies between the engine controller, comfort modules, and the multimedia system, it is worth consulting practical technical materials. A detailed discussion of the operation of the BMW engine controller, FRM modules, and the iDrive system in the 3 and 5 Series can be found in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models, which also describes the use of proven parts from dismantling.

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