Mercedes W203 C200 Kompressor 163HP M271.940 Engine ECU Kit A2711534279 Key Lock

Mercedes W203 C200 Kompressor 163HP M271.940 Engine ECU Kit Key Lock is a specialized electronic engine control unit designed for the supercharged powertrain in the C-Class model. It belongs to the Electronic control modules and controllers category, responsible for precise management of the engine's operation in conjunction with a manual transmission. A used module of this type is a sensible service solution, allowing for the restoration of the drivetrain's efficiency at controlled costs.

Specifications and technical data

• SKU: A2711534279-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2711534279
• Substitutable numbers: A2711534279, A 271 153 42 79, 5WK90472, A2095453108, A 209 545 31 08
• Fuel type: Diesel
• Gearbox type: Manual
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented engine computer is dedicated to the powertrain in the Mercedes C-Class W203 generation, specifically the C200 Kompressor version with 163 HP. As the central element of the engine management system, it coordinates fuel injection, ignition, supercharging, and interaction with auxiliary equipment, ensuring stable engine performance characteristics under various load conditions.

The controller is designed to work with a gasoline engine and a manual transmission, which is crucial when selecting the appropriate ECU for a specific vehicle configuration. A correctly selected module helps avoid communication issues within the vehicle's network and limits the need for additional modifications.

Benefits of using a used control module

Choosing a used engine computer for the Mercedes W203 C200 Kompressor is a solution that combines economic aspects with the preservation of the engine's factory performance characteristics. An original module from the same family of controllers ensures:

• maintenance of operating parameters consistent with the factory calibration for the 163 HP version,
• consistency with the vehicle's electrical and electronic architecture,
• possibility of adaptation and coding within standard service procedures.

As an item from the Electronic control modules and controllers category, this computer is intended for professional service applications where compatibility with a specific engine and transmission version is essential, as well as the ability to integrate with the existing vehicle installation.

Selection, installation, and integration with the vehicle

Before installation, it is recommended to verify the module's compatibility with the car's configuration, particularly regarding fuel type and transmission type. In workshop practice, such a controller is usually subjected to programming procedures, matching to the immobilizer, and synchronization with other vehicle systems.

Professional installation includes:

• checking the electrical installation and connectors for damage,
• proper seating of the controller in the factory mounting location,
• performing diagnostic adaptation using an appropriate tester.

This approach minimizes the risk of communication errors in the vehicle's network and allows for full utilization of the controller's capabilities in terms of engine operation control.

Application in service and operational practice

The engine computer in the Mercedes W203 C200 Kompressor has a direct impact on the engine's refinement, throttle response, and interaction with safety and comfort systems. Replacing a faulty ECU with a tested, used module is a frequently used method for restoring proper vehicle operation after an electronic failure.

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, unit management modules, or auxiliary controllers, check the available parts in the Mercedes electronic control modules and controllers category.

To better understand when choosing a used engine controller is justified and what to look for when selecting one, it is worth reading the guide: The second life of electronics – when is it worth opting for used engine controllers, comfort modules, and parking sensors?.