Mercedes W204 C350 276.957 306HP BE Engine Module ECU A2769001500 Automatic

Mercedes W204 C350 276.957 306HP BE Engine Module ECU is an advanced electronic control unit designed to work with the petrol engine and automatic transmission. As a component from the Electronic control modules and ECUs group, it is responsible for precise engine management, fuel injection parameters, and communication with other vehicle systems. This used control unit is a solution that allows for a technically correct repair of the drivetrain while maintaining factory operating logic.

Specifications and technical data

• SKU: A2769001500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2769001500
• Substitutable numbers: A2769001500, A 276 900 15 00
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Application and function of the engine control unit

The presented ECU module is intended for the Mercedes C-Class W204 generation, specifically the C350 version with the 276.957 engine producing 306 HP. The controller manages key engine operating parameters, such as fuel dosage, ignition timing, start-up strategies, and interaction with the automatic transmission. This ensures that the drivetrain maintains proper dynamics, smooth operation, and stability under various load conditions.

The module operates within the vehicle's network as the central engine control element, communicating with other controllers via the data bus. A properly selected and configured ECU allows for restoring the vehicle's correct operation after a failure of the previous controller or damage to the electrical installation.

Benefits of using an original ECU module

Using an original control unit in a Mercedes W204 C350 ensures:

• preservation of factory engine control maps and power delivery characteristics,
• proper cooperation with the automatic transmission,
• consistency with safety and comfort systems,
• possibility of diagnostics using standard service tools.

For workshops and users, this means predictable vehicle behavior after repair and easier configuration compared to aftermarket solutions. The original engine control module minimizes the risk of CAN network communication issues and limits the need for additional installation modifications.

Technical characteristics and vehicle integration

The ECU module is adapted to work with an automatic transmission, which is crucial for the correct operation of gear shifting functions, kick-down, and strategies in various driving modes. The controller integrates with the drivetrain, traction control system, and other electronic modules, creating a cohesive powertrain management system.

Before installation, it is recommended to verify compatibility with the specific vehicle configuration and prepare for adaptation and potential programming in the vehicle. Professional installation and configuration allow for fully utilizing the potential of the 276.957 unit, ensuring stable operation while maintaining factory parameters.

Condition, origin, and use in service practice

The offered controller is a dismantled, used part, which makes it an attractive cost-effective solution for engine control system repairs. Such modules are frequently used by workshops specializing in the Mercedes brand, especially in cases of electronic damage caused by surges, water ingress, or installation errors.

In service practice, the module can be used as a replacement for a damaged ECU after proper matching to a specific vehicle. A used engine control unit allows for shorter repair times and reduced costs compared to purchasing a brand-new control unit.

Related modules and service knowledge

When working with the electronics of premium vehicles such as Mercedes or BMW, it is crucial to understand how engine control units interact with other body modules and comfort systems. In the context of advanced electronic solutions, it is worth reading material describing the diagnostics and repair of controllers in other brands, e.g., BMW – practical tips 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, which discusses the approach to FRM modules and engine controllers using dismantled parts.

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