BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME 7573863 CAS3 Keys Automatic

BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME CAS3 Keys Automatic is a practical solution for workshops and users performing a replacement or repair of the factory engine control system. The kit includes the engine control unit, the CAS3 module, and matched keys, which significantly simplifies the adaptation process in the vehicle and allows for maintaining the integrity of the immobilizer system. As a result, you minimize the risk of vehicle starting issues and reduce diagnostic time after installation.

Specifications and technical data

• SKU: 7573863-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7573863
• Substitutable numbers: 7573863, 12147573863, 7616431, 12147616431, 7592080, 12147592080, 7573890, 12147573890, 7572100, 12147572100, 7568324, 12147568324, 7568384, 12147568384, 7571568, 5WK93614, 61356943830, 6943830
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and configuration of the kit

The presented BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME CAS3 Keys Automatic is dedicated to the BMW 3 Series E90 and E92 in the 335i version with the N54 petrol engine and automatic transmission. This configuration allows for maintaining compatibility between the engine electronics, the security module, and the starting system, which is crucial when replacing a used ECU in modern vehicles.

In one set, you receive components that work together in the factory configuration, which limits the need for deep programming intervention and makes it easier to match to a specific vehicle.

Benefits of using the complete BMW E90 E92 335i Petrol N54 ECU Kit Control Unit DME CAS3 Keys Automatic

Using a complete control kit in a BMW 335i with an N54 engine brings a number of practical service and operational benefits:

• immobilizer system consistency thanks to matching the DME, CAS3, and keys in one set,
• reduction of start authorization issues after installation,
• easier configuration in vehicles with automatic transmission,
• possibility to restore full functionality of the engine control system after the failure of the original module.

For workshops specializing in BMW, this means faster service execution, and for the end user – efficient restoration of vehicle performance without the need to source individual modules from different places.

Electronic control modules and BMW controllers – compatibility and selection

In the case of such advanced components as electronic control modules and controllers, proper matching based on the engine version, fuel type, and transmission type is crucial. The kit designed for the petrol N54 with an automatic transmission allows for maintaining the correct engine operating maps and proper cooperation with the gear shifting system and onboard systems.

When choosing a used ECU, it is always worth verifying compatibility by OEM number or interchangeable numbers, as well as by the specific equipment of the car. If necessary, you can use the help of a specialized service or diagnostician who will confirm hardware and software compatibility before installation.

Professional installation and operation of used electronics

Due to the complexity of electronic systems in the BMW E90/E92 335i, it is recommended that the kit be installed by a workshop with experience in working with the electronics of this brand. Proper connection, potential adaptation, and diagnostic tests after installation allow for avoiding communication errors between modules and ensure stable engine operation.

If you want to better understand how to safely use used controllers and sensors, how to select them by OEM numbers, and what the step-by-step installation process looks like, check out the guide: Used automotive electronics – second-hand ECU modules and sensors. This is a practical source of knowledge for mechanics and conscious users.

Expanding the control system in BMW – selection of related components

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

Thanks to this, you can select a coherent set of electronic components in one place, optimize repair time, and increase the chance of trouble-free vehicle operation after the service work is completed.