Mercedes C207 E400 BE M276.820 333HP Engine Control Unit ECU Kit A2769007300 Key

ECU Engine Control Unit with Key for Mercedes E-Class C207 E400 is an advanced set from the Electronic Control Units and Controllers group, designed for the M276.820 unit with 333 HP. This solution is created for professional engine control system repair, ensuring consistency of the powertrain electronics and immobilizer.

Specifications and technical data

• SKU: A2769007300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2769007300
• Substitutable numbers: A2769007300, A 276 900 73 00, 0261S08565, 0 261 S08 565, A2189053501, A 218 905 35 01
• Category: ECUs & Computer Modules

Purpose and Function of the ECU Set

The presented control set is dedicated to the M276.820 gasoline engine in the Mercedes E400 C207 model with the BlueEfficiency system. Its task is to precisely manage the operation of the powertrain unit, including fuel delivery, ignition, and cooperation with other vehicle systems.

The combination of the engine control unit with a matched key allows for maintaining the integrity of the vehicle's security system, which significantly simplifies the adaptation process in the car and reduces the risk of immobilizer problems.

Benefits of Using an Original Mercedes Module

Using an original module from the Mercedes family ensures:

• High compatibility with the vehicle's factory electrical system and CAN architecture.
• Stable cooperation with other controllers in the vehicle network (ABS, gearbox, comfort systems).
• The possibility of professional diagnostics using factory service tools.
• Reduced risk of communication errors and engine starting problems after installation.

Additionally, the presence of the key in the set facilitates more efficient configuration of the security system, which is particularly important when replacing the entire powertrain electronics.

Application in Service and Tuning

The ECU set with a key is suitable for both professional service centers and specialized workshops dealing with vehicle electronics and software modifications. It facilitates:

• restoring the control system's functionality after a failure of the factory controller,
• transferring engine configuration in case of powertrain unit replacement,
• work related to updating or modifying control maps under controlled conditions.

This solution allows for maintaining the consistency of engine operating parameters with the manufacturer's specifications, while also providing room for further configuration by specialists.

Condition and Compatibility Verification

The component comes from a used vehicle, which is typical for this type of electronics used in repairs and module replacements. Before installation, a standard diagnostic procedure is recommended, along with verification of compatibility by OEM number and interchangeable numbers, as well as matching for the engine version and vehicle year.

To better understand how to safely select and install used engine control units and other electronic modules, it is worth consulting the guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?

Expanding the Control System in Mercedes

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as additional controllers, powertrain management modules, or units cooperating with the ECU, check the available parts in the category Mercedes Electronic Control Units and Controllers.