BMW E60 LCI E90 E91 325i 525i N53 218HP ECU Kit DME 7604567 CAS3 + Key Manual

BMW E60 LCI E90 E91 325i 525i N53 218HP ECU Kit DME CAS3 + Key Manual is a complete engine control kit designed for selected BMW models with the N53 engine, 218HP output, and a manual transmission. The set includes the DME controller, CAS3 module, and a matched key, which significantly facilitates restoring proper electronic system operation after a failure or during an engine replacement. It is a practical solution for workshops and users who need a consistent, factory-spec control package.

Specifications and technical data

• SKU: 7604567-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7604567
• Substitutable numbers: 12147616431, 7616431, 12147604567, 7604567, 5WK93740, 61359147196, 9147196, KZ
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application of the ECU DME CAS3 + Key Kit

The presented kit is dedicated to BMW cars with the 218HP N53 engine, particularly popular 3 and 5 series models of the E90, E91, and E60 LCI generations equipped with a manual transmission. Combining the DME controller, CAS3 module, and key allows for maintaining immobilizer system consistency, which is crucial when replacing engine electronics or the complete powertrain.

Thanks to this solution, you can orderly restore the original control system logic, minimizing the risk of vehicle starting issues, communication errors between modules, or software incompatibility.

Kit structure and function of individual components

The ECU kit includes three main components responsible for engine management and start authorization:

• DME controller – the central module responsible for managing the N53 engine, including fuel injection, ignition, and cooperation with other vehicle systems,
• CAS3 module – an element of the access and start system that communicates with both the key and the engine controller,
• key – matched to the CAS3 module, enabling proper start authorization.

A set configured in this way allows for seamless integration with the vehicle's electrical system, which is particularly important in modern BMWs, where many functions are logically interconnected.

Benefits of using an original ECU kit

Choosing a complete engine controller kit with the CAS3 module and key brings a number of practical benefits in daily service work:

• electronics consistency – all components come from a single system, which limits the need for complex programming and adaptation,
• easier diagnostics – modules communicate according to factory specifications, which facilitates work with diagnostic testers,
• time savings in the workshop – a ready-to-use set allows for faster completion of repairs or conversions,
• maintaining N53 engine performance characteristics – the DME controller is prepared to work with a 218HP unit and a manual transmission.

For the end user, this means stable engine operation, predictable vehicle behavior, and the ability to maintain factory driving parameters.

Installation characteristics and service purpose

The ECU DME kit with the CAS3 module and key is particularly useful in situations where the engine controller has been damaged, there are issues with the immobilizer, or an engine replacement is being carried out within the same family of units. Due to its compatibility with a manual transmission, the kit is suitable for vehicles where maintaining proper cooperation between the engine controller and the drivetrain is crucial.

This solution will work well both in professional services specializing in the BMW brand and in independent workshops looking for a complete, organized engine electronics package for specific model configurations.

Brand, category, and service knowledge development

The product belongs to the Electronic control modules and controllers group, which are key elements for the proper operation of modern BMW powertrains. 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 additional controllers, comfort modules, or engine management systems, check out the available parts in the BMW electronic control modules and controllers category.

To compare how other premium manufacturers approach original electronic components and maintaining the brand's character, it is worth reading the article on our blog: Audi and pure emotion – how used parts help maintain the brand's DNA. It allows for a better understanding of why using the correct control modules is so important for preserving the vehicle's factory properties.