BMW F20 M435i N55 326HP Engine Control Unit ECU DME 8626762 Automatic

BMW F20 M435i N55 326HP Engine Control Unit ECU DME is a factory module from the Electronic control modules and controllers group, designed to support the N55 326 HP engine unit in combination with an automatic transmission. It is responsible for precise engine management, ensuring stable performance characteristics, proper communication with other vehicle systems, and compatibility with BMW's factory electrical architecture.

Specifications and technical data

• SKU: 8626762-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8626762
• Substitutable numbers: 8626762, 12148626762, 8674949, 12148674949, 8626472, 12148626472, 8639582, 12148639582, 8624494, 12148624494, 8665279, 12148665279, 8621007, 12148621007, 0261S10203, 0 261 S10 203
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the DME controller

The DME ECU engine controller in the version dedicated to the BMW F20 M435i N55 326HP works with the fuel injection system, ignition, turbocharging, and engine protection systems. The module coordinates engine operating parameters in real-time by analyzing sensor signals and sending appropriate commands to actuators, which translates into predictable throttle response and proper engine refinement. The variant designed for an automatic transmission is adapted for data exchange with the transmission module, which enables correct torque management during gear shifts, reduction of jerking, and maintenance of appropriate protective strategies for the drivetrain.

Benefits of using an original BMW module

Using an original controller from the Electronic control modules and controllers family ensures the preservation of factory maps and control logic, which facilitates diagnostics and subsequent service maintenance. The module is structurally matched to the BMW F20 electrical system, allowing for orderly installation without the need for interference with wiring harnesses or connectors. An additional advantage is the presence of dedicated interchangeable part numbers, which makes it easier to select the appropriate variant for a specific vehicle configuration. With correct matching based on VIN and part numbers, it is possible to maintain full compatibility with existing vehicle systems, including comfort modules, ABS/DSC, and security systems.

Integration with the automatic transmission

The controller in this version is prepared for operation with an automatic transmission, which is crucial for the proper functioning of features such as adaptive gear shifting, drive modes, and load reduction strategies during gear changes. Proper communication between the DME and the transmission module affects the smoothness of the drivetrain and reduces the risk of errors associated with incorrect controller selection. When replacing the module in cars with an automatic transmission, it is essential to use a unit intended specifically for such a configuration – this helps avoid synchronization problems, torque control errors, and software incompatibilities.

Professional selection and installation

Due to the advanced function of the DME ECU controller, it is recommended to select it based on part numbers and the engine/transmission configuration, as well as to perform the installation using appropriate programming and adaptation procedures. A correctly selected module allows for the preservation of the factory operating parameters of the N55 326HP unit, which is particularly important in cars used dynamically. To better understand the specifics of selecting used controllers and other electronic components, it is worth reading the guide on ECU modules and sensors – detailed information can be found in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

Related BMW Electronic control modules and controllers

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 transmission controllers, body modules, or safety system controllers, check out the available parts in the BMW Electronic control modules and controllers category.