Mercedes W204 C280 M272.947 231HP Engine ECU Kit A2721530991 Key Automatic

Mercedes W204 C280 M272.947 231HP Engine ECU Kit Key Automatic is a solution designed for vehicles with an automatic transmission and a diesel engine. The set serves as a solid foundation for professional powertrain control system repairs, allowing for the restoration of proper engine operation and the electronics responsible for starting and immobilizer communication. By maintaining the factory control system architecture, the Mercedes W204 C280 M272.947 231HP Engine ECU Kit Key Automatic facilitates the matching process for a specific vehicle.

Specifications and technical data

• SKU: A2721530991-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721530991
• Substitutable numbers: A2721530991, A 272 153 09 91, 0261209233, 0 261 209 233, A2045451008, A 204 545 10 08
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Other Car Parts & Accessories

Application and compatibility

The presented set is intended for the Mercedes C-Class W204 generation in the C280 version, equipped with an M272.947 engine producing 231 HP. The control system design was developed for compatibility with diesel powertrains and automatic transmissions, which is crucial when selecting the appropriate ECU for a specific vehicle configuration.

The ECU kit with key is particularly useful in situations involving damage to the electronic engine control unit, immobilizer issues, or the need to replace the entire control set due to communication errors within the vehicle's network. Using components from a single set minimizes the risk of software incompatibility.

Technical characteristics of the ECU kit

The set includes an electronic engine control unit compatible with the M272.947 engine, integrated with the vehicle's security system and a key matched to this system. This configuration allows for consistent identification data and facilitates the adaptation process in the vehicle where the set is being installed.

The control system is designed to work with a diesel engine and an automatic transmission, which is essential for proper torque management, gear shifting, and communication with other vehicle modules. This ensures the maintenance of correct powertrain operating parameters, such as smooth acceleration, throttle response, and interaction with safety systems.

Condition and service purpose

The product falls into the category of used electronic components, making it an attractive solution for repairs where a balance between cost and functionality is important. The set is primarily intended for workshops specializing in automotive electronics, independent service centers, and informed users planning to replace the ECU along with the associated key.

In practice, installing such a kit reduces the time required for programming from scratch, as the key and the ECU are already paired. For many service applications, this means faster vehicle recovery and less interference with the existing installation.

Benefits of using a complete ECU kit

• A consistent engine control unit and key set, facilitating integration with the immobilizer system.
• Compatibility with the M272.947 engine in the W204 C280 model, which helps maintain correct powertrain operating parameters.
• Designed for use with an automatic transmission in a diesel vehicle.
• A service solution that reduces the scope of programming and configuration compared to replacing individual modules.

For workshops dealing with diagnostics and powertrain electronics repair, this means the ability to efficiently resolve issues related to a damaged ECU, communication errors, or a faulty starting system. The Mercedes W204 C280 M272.947 231HP Engine ECU Kit Key Automatic provides a practical alternative to purchasing new modules.

Related categories and technical materials

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other items from the same group, such as control modules, wiring harnesses, or additional electronic components, check out the available parts in the Other Mercedes category.

When working with advanced diesel units, it is worth expanding your knowledge regarding the structural differences between sports and standard powertrain versions and their accessories – an article describing the characteristics of engines, brakes, and chassis in high-performance models may be helpful, available here: Audi RS vs other models – what is hidden under the hood and chassis?.

In the case of diesel system diagnostics, especially when symptoms of rough running or power loss appear, it is also worth reviewing material discussing common fuel supply problems in diesel engines: Diesel injector faults – how to recognize them and the risks of neglecting them.