Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit A6549009400 Keys

Mercedes W907 315CDI OM654.920 Engine Unit Module ECU Kit Keys is a set from the Electronic control modules and controllers group, designed for advanced engine management in Mercedes vehicles. The kit ensures the consistency of engine control components, which facilitates diagnostics, programming, and the restoration of full powertrain functionality after a failure or component replacement.

Specifications and technical data

• SKU: A6549009400-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6549009400
• Substitutable numbers: A6549009400, A 654 900 94 00, A6549017600, A 654 901 76 00, 0281037185, 0 281 037 185, A9079900806, A 907 990 08 06, A2479004315, A 247 900 43 15, A0999009401, A 099 900 94 01
• Category: ECUs & Computer Modules

Purpose and function of the ECU kit

The presented engine control kit is dedicated to Mercedes vehicles with the OM654.920 diesel engine, where precise management of engine operating parameters is crucial. The ECU module is responsible for, among other things, controlling fuel injection, monitoring auxiliary equipment, and communicating with other controllers in the vehicle, which translates into stable engine performance characteristics.

Combining the engine controller with matched kit components and keys minimizes the risk of issues with the immobilizer and vehicle network communication, which is particularly important when replacing electronics in modern designs.

Advantages of the complete kit with keys

Using a complete ECU kit with keys in a Mercedes vehicle allows for reducing the time and complexity of workshop tasks. In one package, you receive components that are already synchronized, which facilitates adaptation in the vehicle and reduces the need for deep programming intervention.

• Consistency of engine control and vehicle security components.
• Easier configuration compared to selecting individual modules.
• Possibility of use in the repair process after damage to the original controller.

For workshops specializing in automotive electronics, such a kit is a practical solution, allowing for faster vehicle restoration while maintaining high repair consistency.

Characteristics of used electronics

The offered kit comes from the used electronics segment, which in practice means a favorable compromise between repair cost and functionality. In the case of engine controllers, it is essential that the components are structurally and communicatively compatible with the given vehicle generation – this set meets these requirements while maintaining an attractive price-to-performance ratio.

Used Electronic control modules and controllers are frequently chosen by professional services that are able to properly diagnose them, prepare them for installation, and, if necessary, programmatically match them to a specific vehicle.

Selection and compatibility by numbers

When selecting an ECU kit for a Mercedes, it is crucial to compare factory markings and interchangeable numbers with vehicle data. This product has an assigned OEM part number and a list of reference numbers, which facilitates verification of compatibility with a specific car configuration. Thanks to this, you can precisely check whether the offered set will be suitable for a given model and engine version.

In case of doubt, it is worth comparing the information with service documentation or the manufacturer's catalog to ensure full compatibility with the vehicle's electrical installation and communication network.

Substantive support and additional information

If you want to better understand when choosing a used engine controller is justified and how to safely select such an element for your car, check out our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?. You will find practical tips on diagnostics, selection, and operation of automotive electronics there.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as controllers, engine management modules, or vehicle communication monitoring systems, check the available parts in the Mercedes electronic control modules and controllers category.