BMW E90 E91 335i 306HP N54 Engine Control Unit ECU Kit DME 7575875 Automatic

BMW E90 E91 335i 306HP N54 Engine Control Unit ECU Kit DME is a complete engine control unit kit designed for the N54 petrol engine in 3 Series models with an automatic transmission. As an item from the Electronic control modules and controllers category, it is responsible for precise engine management, ensuring stable performance and proper cooperation with other vehicle systems. This is a solution for users who need a proven, used ECU kit tailored to the 335i specifications.

Specifications and technical data

• SKU: 7575875
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7575875
• Substitutable numbers: 12147616431, 7616431, 12147575875, 7575875, 5WK93628, KZ
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the engine control unit

The presented ECU DME kit has been designed specifically for the 306HP N54 engine in BMW 3 Series E90 and E91 models. The controller is responsible for advanced fuel injection control, ignition, and cooperation with engine peripherals, which translates into smooth power delivery characteristics and correct load response. By being dedicated to the automatic transmission version, it ensures consistent drivetrain operation, minimizing the risk of communication errors between modules.

Benefits of using an original BMW module

The original controller from the Electronic control modules and controllers category guarantees proper fitment to the electrical architecture of the BMW 3 Series. Using a factory ECU allows for maintaining compatibility with factory engine maps, safety systems, and OBD diagnostics, which facilitates subsequent service maintenance. A used, functional module is also a cost-effective solution when repairing a vehicle after an engine electronics failure, without the need to resort to expensive replacements of uncertain compatibility.

Integration with the drivetrain and vehicle electronics

This ECU DME kit is designed to work with the petrol fuel system and automatic transmission, which is crucial for the proper operation of functions such as gear shifting, torque control, or engine operation adaptations. The module communicates with other controllers in the vehicle via the data bus, ensuring full integration with comfort, safety, and diagnostic systems. A properly selected engine controller reduces the risk of dashboard error messages and engine starting problems.

Using a used part in professional repair

A used ECU DME kit for the BMW 335i N54 is a practical solution in situations where the factory controller has been damaged or flooded, and repair is not cost-effective. Choosing an original module from dismantling allows for maintaining high component quality while reducing repair costs. This type of element is particularly recommended for workshops specializing in the BMW brand and users who expect the most faithful reproduction of the factory vehicle configuration without experimenting with universal controllers.

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

Technical support and selection of the appropriate controller

When selecting an engine controller for a BMW 3 Series with an N54 unit and automatic transmission, it is crucial to match the technical parameters and vehicle electronics configuration. It is worth using professional knowledge regarding DME modules, adaptation procedures, and programming to avoid problems after installation. Practical tips on working with used controllers, FRM modules, and the iDrive system in BMW 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 using parts from dismantling?, which discusses best practices when using electronics from dismantling.