Mercedes W204 C180 156HP Kompressor 271.910 Engine ECU Kit A2711504279 Key Lock

Mercedes W204 C180 156HP Kompressor 271.910 Engine ECU Kit Key Lock is a specialized electronic control unit designed for gasoline engines with automatic transmissions. This component from the Electronic control modules and controllers category is responsible for precise engine management, ensuring stable performance and proper integration with other vehicle systems. Thanks to its factory design, this ECU is the right choice for professional repairs or controller replacements in this Mercedes model.

Specifications and technical data

• SKU: A2711504279-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2711504279
• Substitutable numbers: A2711504279, A 271 150 42 79, 5WK90729, A0044469440, A 004 446 94 40, A2075450108, A 207 545 01 08
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the engine controller

The presented control unit is designed to work with a gasoline engine and an automatic transmission, allowing for consistent management of ignition, fuel injection, and gear-shifting strategies. The ECU coordinates the operation of sensors and actuators, monitoring parameters such as idle stability, throttle response, and performance under various load conditions. As a result, the powertrain maintains proper operating standards, and the vehicle responds predictably to driver inputs.

Application in a gasoline system with an automatic transmission

The controller has been configured for the specifics of the gasoline unit, which means matched injection maps, ignition timing, and adaptive corrections. In combination with an automatic transmission, this enables smooth gear changes, appropriate gear selection based on load, and the maintenance of correct exhaust emission parameters. This type of ECU is particularly important when diagnosing engine performance issues, jerking during gear changes, or rough idling – its proper operation is the foundation for further effective service maintenance.

Benefits of using an original module

Choosing an original controller from the Electronic control modules and controllers category allows you to maintain the factory performance parameters of the powertrain without the need for programming compromises. Such a module is designed for full compatibility with the electrical installation, the vehicle's communication network, and other controllers. In practice, this translates into:

• stable communication with other modules in the vehicle,
• proper support for diagnostic functions,
• the ability to use factory adaptation and coding procedures,
• maintaining predictable engine performance across the entire RPM range.

Characteristics of the used product

The offered controller comes from the secondary market, making it a cost-effective solution while maintaining the factory design. A used module is particularly useful in situations where the existing ECU has suffered electronic or mechanical damage or has been flooded. In many cases, such a component, after proper matching and potential programming, allows for the quick restoration of vehicle functionality without the need to invest in a new component.

Selection, numbers, and technical compatibility

This control unit has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific vehicle configuration. When planning a replacement, it is worth comparing the markings with the currently installed controller and verifying compatibility regarding fuel type and transmission type. For additional selection safety, you can use the manufacturer's markings or vehicle data to avoid communication problems within the vehicle network and the need for deep software modifications.

Mercedes electronic control modules – expansion and service

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, transmission modules, or auxiliary system controllers, check out the available parts in the Mercedes electronic control modules and controllers category.

More about used automotive electronics

When choosing a used ECU, it is worth knowing the basic principles of selection, programming, and diagnostics for such components. Practical tips on when it is worth opting for a used engine controller and what to pay attention to during purchase and installation can be found in the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.