BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME 7568842 CAS3 Key Automatic

BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME CAS3 Key Automatic is a precisely selected set from the Electronic control modules and ECUs category, designed for BMW E90 and E92 vehicles. The set ensures the consistency of the immobilizer components and powertrain control, which significantly facilitates professional repair or replacement of the control system in 335i cars.

Specifications and technical data

• SKU: 7568842-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7568842
• Substitutable numbers: 12147616431, 7616431, 12147568842, 7568842, 5WK93608, 61356943814, 6943814
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME CAS3 Key Automatic

The presented set includes the DME engine control unit, the CAS3 module, and a matched key, prepared to work with the N54 petrol engine in BMW E90 and E92 335i models equipped with an automatic transmission. Combining these elements into one set allows for maintaining the consistency of the immobilizer coding, which in practice reduces the need for complex programming and speeds up the vehicle startup process after repair.

For workshops specializing in the BMW brand and advanced automotive electronics, such a set is particularly valuable when replacing a damaged engine control unit, dealing with key authorization issues, or failures of the CAS3 module responsible for key recognition and start authorization.

Benefits of using a complete control set

Using a complete ECU set with the CAS3 module and key in a BMW 335i with an N54 engine and automatic transmission brings a number of practical benefits:

• maintaining data consistency between the engine control unit and the CAS3 module,
• reducing the risk of software conflicts in the immobilizer system,
• easier diagnostics and configuration compared to replacing individual components,
• the ability to efficiently rebuild the control system after an electronics failure.

Thanks to this set, you can orderly restore the proper operation of the powertrain, maintaining the correct cooperation of the control unit with the automatic transmission and the vehicle's safety systems.

Application in BMW 3 Series 335i N54 vehicles

The set is dedicated to BMW 3 Series units in E90 and E92 body styles in the 335i variant with the N54 petrol engine. It is in these models that the DME control unit works with the CAS3 module, being responsible for start authorization, key handling, and communication with other electronic modules in the vehicle.

In practice, the set will prove useful both when replacing a damaged control unit after thermal or moisture failure, and when solving problems with no response to the key, authorization errors, or unstable engine control system operation. The consistency of the elements in one set allows for reducing the time required for adaptation and configuration in the vehicle.

Condition, origin, and economic aspect

The offered set comes from dismantling and is classified as a used original BMW part, which means maintaining the factory specification and design intended by the manufacturer. Choosing such a solution is often economically advantageous compared to purchasing new components, especially in the case of advanced electronic control modules.

For users and service centers, this means the possibility of restoring full functionality of the engine control system at reasonable costs, while maintaining the high quality of workmanship characteristic of OE parts.

More about BMW electronics and parts from dismantling

If you want to better understand how to properly diagnose and service electronic systems in BMW 3 and 5 Series, including the engine control unit or comfort modules, it is worth checking out the guide on our blog: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models. You will find practical tips there regarding the use of proven parts from dismantling in professional repairs.

If you are planning a comprehensive repair or upgrade of the control electronics area in your BMW and need other elements from the same group, such as engine control units, comfort modules, or body control units, check the available parts in the BMW electronic control modules and ECUs category.