BMW E60 E61 E90 E91 330i 530i Petrol N52 ECU Kit DME 7555361 CAS2 Key Manual

BMW E60 E61 E90 E91 330i 530i Petrol N52 ECU Kit DME CAS2 Key Manual is a complete electronic set from the Electronic Control Modules and Controllers category, designed for N52 petrol engines with a manual transmission. It includes the DME engine control unit, the CAS2 module, and a matched key, which facilitates restoring the proper operation of the drivetrain after an electronics failure or when replacing the control unit.

Specifications and technical data

• SKU: 7555361-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7555361
• Substitutable numbers: 12147577970, 7577970, 12147555361, 7555361, 5WK90078, 61356943771, 6943771
• Fuel type: Petrol
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Application of the ECU DME CAS2 kit with key

The presented set is dedicated to selected BMW 3 and 5 series models with an N52 petrol engine and a manual transmission. The combination of the DME controller, CAS2 module, and key allows for consistent operation of the starting system, immobilizer, and engine management, which is particularly important when replacing a damaged controller or performing conversions within the same vehicle generation.

Design and function of the kit components

The ECU kit includes an electronic engine controller responsible for monitoring the operating parameters of the petrol unit, a CAS2 module managing start authorization, and a matched key that works with this system. This configuration minimizes the risk of immobilizer synchronization issues, facilitates adaptation in the vehicle, and reduces the time required to start the car after repairing the electronic system.

This solution is particularly useful in situations where the existing controller has been damaged, communication issues occur in the bus, or it is necessary to replace the entire starting set in vehicles with a petrol engine and manual transmission.

Benefits of using a pre-owned ECU kit

Choosing a pre-owned ECU DME kit with a CAS2 module and key allows for significant repair cost savings compared to purchasing new components, while maintaining the vehicle's original electronic architecture. The set comes from dismantling, ensuring the factory specification of the controller is preserved along with compatibility with vehicle systems within the same engine and transmission generation.

For users and workshops, this means the ability to efficiently replace a damaged engine control system without the need for costly installation modifications or the use of universal solutions. The consistency of the controller, CAS2 module, and key limits the number of potential failure points during programming and adaptation.

Selection and operation of engine electronics

When selecting an ECU kit for a specific BMW with an N52 petrol engine and manual transmission, it is crucial to compare the vehicle configuration and consult with an automotive electronics specialist. A correctly selected set allows for stable engine operation, proper functioning of the starting system, and the preservation of vehicle security features.

If you want to better understand when installing a pre-owned engine controller and related modules makes sense, how to assess their condition, and what to look for when purchasing, check out the guide Second life for electronics – when is it worth choosing pre-owned engine controllers, comfort modules, and parking sensors?. You will find practical tips there helpful for both individual users and workshops.

BMW electronic control modules and controllers – expansion and service

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, management modules, or related electronic systems, check the available parts in the BMW electronic control modules and controllers category.

In situations where you are looking for ways to reduce service costs while maintaining OEM quality, it is also worth analyzing the advice contained in the article Rising repair costs and the boom in pre-owned parts – how to save on car service?, which discusses strategies for safely using pre-owned electronic and mechanical components.